Page 1 Critical Release Notice Publication number: 297-8211-550 Publication release: Standard 05.02 The content of this customer NTP supports the SN06 (DMS) and ISN06 (TDM) software releases. Bookmarks used in this NTP highlight the changes between the baseline NTP and the current release.
Page 2 Publication History March 2004 Standard release 05.02 for software release SN06 (DMS) and ISN06 (TDM). Change of phone number from 1-800-684-2273 to 1-877-662-5669, Option 4 + 1.
Page 3 297-8211-550 DMS-100 Family Outside Plant Access Cabinet (OPAC) Maintenance Manual XPM12 and up Standard 05.01 August 1999...
Page 5 Nortel Networks, the holder is granted no rights to use the information contained herein. Information is subject to change without notice. Nortel Networks reserves the right to make changes in design or components as progress in engineering and manufacturing may warrant.
Page 7: Table Of Contents
Contents About this document When to use this document ix How to check the version and issue of this document ix References in this document x What precautionary messages mean x How commands, parameters, and responses are represented xi Input prompt (>) xi Commands and fixed parameters xi Variables xi Responses xi...
Page 8 iv Contents Subscriber lines manual maintenance 1-77 Drawer maintenance 1-77 OPAC power and environment system (PES) maintenance Functional description 2-1 Physical design 2-1 Outside plant termination compartment 2-5 Environmental control equipment 2-11 Electrical system 2-14 OPAC power and environmental system maintenance 2-27 OPAC battery backup system 2-28 OPAC power matrix and example current demand 2-29 OPAC power requirements 2-32...
Page 9 Contents v ESA limits and restrictions 3-27 Limits during the ESA mode 3-27 Restrictions during ESA mode 3-28 Fault conditions 3-28 Unusable communication links 3-29 Loop-around message audit failure 3-29 Automatic ESA maintenance 3-30 ESA line audits 3-30 Digitone receiver audit 3-31 Automatic static data downloading and system maintenance 3-31 Routine exercise test 3-32 Escalation to manual maintenance 3-33...
Page 10 vi Contents RMM minor 7-99 PMPES critical, major, minor 7-105 ESA critical, minor 7-122 OPAC card replacement procedures NT0X10 RMM 8-2 NT2X06 RMM 8-6 NT2X09 RMM 8-14 NT2X10 RMM 8-21 NT2X11 RMM 8-26 NT2X48 RMM 8-31 NT2X57 RMM 8-36 NT2X59 RMM 8-40 NT2X70 HIE 8-44 NT2X90 RMM 8-51 NT3X09 RMM 8-56...
Page 11 Contents vii Defective line drawer 10-3 Defective shelf circuit pack 10-3 Defective line card 10-3 Procedure 1 10-3 Procedure 2 10-4 Defective DS-1 link 10-4 Defective ringing generator (RG) frequency generator circuit 10-4 Load file mismatch 10-5 Diagnostic tests 10-5 OPAC line trunk controller (LTC) diagnostics 10-5 Bit error rate performance testing 10-7 XPM bit error ratio test 10-8...
Page 12 viii Contents Lubricate door hinges OPAC 13-66 Open-circuit test failure OPAC 13-69 Paint touch–up OPAC 13-73 Post charge test failure OPAC 13-76 Rectifier voltage check OPAC 13-80 Rectifier replacement OPAC 13-84 Wrist strap grounding cords test OPAC 13-87 Fan replacement, internal fans OPAC 13-90 Rectifier voltage adjustment OPAC 13-93 Site test OPAC 13-97 Index...
Page 13: About This Document
About this document When to use this document This Outside Plant Access Cabinet (OPAC) maintenance reference manual provides: overview, signaling, and hardware information for understanding the OPAC product and operation; recovery procedure for returning to service an OPAC from a completely out-of-service condition; alarm clearing proce- dures for clearing an OPAC alarm condition at the MAP;...
Page 14: References In This Document
Extended Peripheral Module Translations Reference Manual What precautionary messages mean The types of precautionary messages used in Nortel Networks documents include attention boxes and danger, warning, and caution messages. An attention box identifies information that is necessary for the proper performance of a procedure or task or the correct interpretation of information or data.
Page 15: How Commands, Parameters, And Responses Are Represented
About this document xi WARNING Damage to the backplane connector pins Align the card before seating it, to avoid bending the backplane connector pins. Use light thumb pressure to align the card with the connectors. Next, use the levers on the card to seat the card into the connectors.
Page 16 xii About this document FP 3 Busy CTRL 0: Command request has been submitted. FP 3 Busy CTRL 0: Command passed. The following excerpt from a procedure shows the command syntax used in this document: Manually busy the CTRL on the inactive plane by typing >BSY CTRL ctrl_no and pressing the Enter key.
Page 17: Opac Maintenance Overview
OPAC maintenance overview Functional overview The Outside Plant Access Cabinet (OPAC) offers the enhanced capacity and versatility necessary for increased service delivery. The OPAC incorporates the functions of multiple outside plant enclosures. The OPAC can address a wide range of application requirements in present and future access networks.
Page 18: Fcc Statement
1-2 Maintenance overview Note 1: This guide uses the names RLCM and Outside Plant Module (OPM) with the OPAC. The OPM is a reconfigured RLCM packaged in a cabinet that protects the OPM from the environment. Note 2: An OPM packaged in the Series 800E Cabinet is an OPAC. The OPAC replaces the frame supervisory panel (FSP) with a modular supervisory panel (MSP).
Page 19 Maintenance overview 1-3 The OPAC consists of: a line concentrating module (LCM) host interface equipment (HIE) a remote maintenance module (RMM) The OPAC supports all line features available at the host. These features include the following line features: plain old telephone service (POTS) party lines coin lines Meridian Digital Centrex (MDC) stations...
Page 20 1-4 Maintenance overview OPAC arrangement Fuse panels Air induction roof Door switch Filler panel PO747175 Rectifiers Cooling unit Cooling unit Termination Bay 0 Bay 1 Electrical Attached compartment compartment power pedestal 297-8211-550 Standard 05.01 August 1999...
Page 21: Line Concentrating Module
Maintenance overview 1-5 Line concentrating module The LCM occupies two shelf positions in the OPAC cabinet. The two unit LCM contains two line concentrating array (LCA) shelves. The LCA-0 is the bottom shelf. The LCA-1 is the top shelf of the LCM. Fuse panels above the LCM carry sets of five +5 V and –48 V fuses for the line drawers These fuse panels also carry a pair of fuses for the ringing voltage outputs (RA and RB).
Page 22 1-6 Maintenance overview LCM arrangement 5 Line drawers LSG11 LSG13 LSG15 LSG17 LSG19 Power converter LCA 1 Processor Digroup control card LSG10 LSG12 LSG14 LSG16 LSG18 LSG01 LSG03 LSG05 LSG07 LSG09 Power converter LCA 0 Processor Digroup control card LSG00 LSG02 LSG04 LSG06...
Page 23 Maintenance overview 1-7 The power converter card is at the far left of the LCA shelf (slots 01–03). The control complex cards occupy slots 04 and 05. The five line drawers fill the remainder of the shelf. Power converter card The power converter card (NT6X53) is in slots 01–03 of the LCA.
Page 24 1-8 Maintenance overview Host interface equipment shelf layout Slot Abbreviation NT PEC Remarks 01–03 NT6X53AA Power converter. Also contains ringing and ANI voltage switching circuits. LCMP NT6X51AB XLCM processor card (see note) NT6X52AA Digroup control card – – NT6X05AA Line drawer –...
Page 25 Maintenance overview 1-9 The DCC provides time switching to associate a line card to a given channel on a DS30A link. The DCC provides digital loop-around paths for fault isolation. OPAC DS30A to DS-1 interface HIE shelf LCA shelf 1 LCMP-1 8 DS30A LCC-1...
Page 26 1-10 Maintenance overview LCA line drawer NT6X05AA, circuit card location 16–31 00–15 16–31 Even 00–15 Line circuit cards Line subgroup To flexible cables Bus interface card NT6X54 Drawer front Drawer state display The following table lists codes that display line drawer states at the MAP terminal.
Page 27 Maintenance overview 1-11 When the state of a drawer changes, the system updates the status display. The system can change the state, or the user can change the state manually. LCM drawer states Code Definition (abbreviation) (dot) In service (InSv) In-service trouble (ISTb) Manual busy (ManB) Offline (OffL)
Page 28 1-12 Maintenance overview The LSGs and each line card in the LSGs have numbers. The LSG numbers in an OPAC range from LSG-00 through LSG-19. Line card numbers range from 00 through 31. The system uses these numbers to identify and inventory each line card in the DMS-100 switch by line equipment number (LEN).
Page 29 Maintenance overview 1-13 Line card type B coin (NT6X18AA, AB, BA) Message waiting line card (NT6X19AA) Message-waiting converter card (NT6X20AA) Meridian Business Set (MBS) line card 15KFT MDC Business Set (NT6X21AA, AB, AC, AD) Standard line circuit card type A (NT6X17AA, AB, AC, AD). This card is the plain old telephone service (POTS) card.
Page 30 1-14 Maintenance overview The NT6X21AD line card provides a voice and signaling interface between the following line and channel: a 2-wire, analog subscriber line one channel of the 4-wire, a 32-channel 2.56 Mb/s bit stream of the DMS-100 Family of Digital Multiplex Switching Systems The card occupies one slot in the line drawer of the LCM for use with a P-phone telephone set.
Page 31 Maintenance overview 1-15 Recommended NT6X21AD S1 DIP switch settings Recommended D/A voice Balance Signaling level application S3 and S4 switch position switch position Both Only Only Both S4 ON S3 ON –3.5dB 1.3Vpp 0.8Vpp 0.6Vpp 0.14Vpp P-phone sets long loop: 19–24dB EML P-phone sets medium loop:...
Page 32 1-16 Maintenance overview NT6X21AC THL Limits Frequency 1505 3204 Minimum –6.2 –6.2 –6.2 –7.2 Maximum +1.3 +0.8 +0.8 +0.7 NT6X21AD THL Limits Frequency 1505 3204 Minimum –2.7 –2.7 –2.7 –3.7 Maximum +4.8 +4.3 +4.3 +4.2 System software requires the two limits to determine which D/A gain is selected on the line card.
Page 33 Maintenance overview 1-17 LCA block diagram Control complex Line drawers Ports 6X52 Drawer 9 1–3 DS30A 0,1,2 LCC -1 Drawer 5 Line 6X51 LSG 11 Digroup 6X54 Card 0 Control Processor Card Card Line Card LSG 10 3,4,5 Card 0 6X53 Power Converter...
Page 34: Hie Description
1-18 Maintenance overview HIE description The HIE occupies a single shelf position in the OPAC frame. The HIE allows LCA shelves of the OPAC to connect to the RMM and host office. The HIE shelf contains the following components: two ringing generators two LCCs two to three DS-1 interface cards two power converters...
Page 35 Maintenance overview 1-19 HIE shelf layout HIE: NT6X11 Power Power RG-0 RG-1 Fillers converter converter 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Host interface equipment shelf layout Slot Abbreviation...
Page 36 1-20 Maintenance overview Host interface equipment shelf layout (continued) Slot Abbreviation NT PEC Remarks 22–24 2X70 Power converter 25–27 2X70 Power converter Note 1: When ESA is not provisioned, these card slots have filler panels (NT0X50AA). When selected, the ESA package has two possible configurations. Refer to sections “ESA hardware” and “ESA control complex”...
Page 37 Maintenance overview 1-21 LCC interface to DS–1 interface cards To host office DS-1 links 0 DS-1 DS-1 DS-1 interface interface interface card card card LCC-0 LCC-1 I/S: intershelf link DS30A links DS30A links LCA-0 LCA-1 In normal conditions, when both are active, LCC-0 connects LCA-0, and LCC-1 connects LCA-1.
Page 38 1-22 Maintenance overview The DS30A ports in the LCA have numbers 0 to 7. The following table lists DS30A port functions. LCA port assignments and use Number Port type Functions 0, 1, 2 Primary Carries three message channels for the LCA shelf. Message channels map to channels 1, 2, and 3 of each of the two primary DS-1 links to the host office.
Page 39 Maintenance overview 1-23 DS-1 interface cards The DS-1 interface cards (NT6X50) are in slots 19 and 20 of the HIE shelf. An additional card can be provisioned in slot 21 in place of the filler panel. Each DS-1 interface card accepts two DS-1 links from the host office LGC/LTC.
Page 40 1-24 Maintenance overview OPAC link, port, and channel structure channels DS-1 Equipped link channels DS-1 Primary Equipped link ports channels DS-1 Equipped link To mate links 1, 3, Image and 5, DS30A ports active in LCC- 0 maximum takeover of 320 only lines Interlink port...
Page 41: Remote Maintenance Module
Maintenance overview 1-25 Power converter card Two HIE power converter supply necessary shelf voltages (5 V, 12 V) for the HIE shelf. These power converters are in slots 22 to 24, and 25 to 27. ESA control complex If the user selects the ESA feature package, two configurations are possible. The NT6X45AF based ESA package consists of three pieces of equipment: one ESA memory card (NT6X47AC), slot 14 one ESA processor card (NT6X45AF), slot 15...
Page 42 1-26 Maintenance overview The RMM can accommodate a maximum of 14 maintenance and service circuit cards. These cards vary in type and meet different provisioning requirements. RMM connection with host and LCA through LCC ESAP DS30A DS30A link pair link pair LCA-0 DS-1 links Link control...
Page 43 Maintenance overview 1-27 5 V/40 A power converter common features (NT2X06) The multioutput power converter occupies slots 17 and 18 of the RMM. This converter provides a regulated, common-ground dc power supply with five different outputs (+24 V, +12 V, +5 V, -15 V, and -5 V). The other power converter occupies slot 20, the slot to the far right of the RMM.
Page 44 1-28 Maintenance overview RMM equipment shelf layout (continued) Slot Abbreviation NT PEC Remarks 09–10 I/O test NT2X90AD Input/output test card with NT2X77AA daughter board 11–12 Digitone RCVR NT2X48AB Digitone receiver 13–16 NT0X50AC Filler panel 17, 18 NT2X09AA Multioutput power converter NT0X50AC Filler panel NT2X06AB...
Page 45: Modular Supervisory Panel
Maintenance overview 1-29 The miscellaneous scan (SC) card (NT0X10AA) provides an interface where the DMS-100 alarm system software can monitor the state of the OPAC hardware. The system monitors the OPAC hardware state to detect alarm conditions or manually controlled operations. The SC card divides into two circuits.
Page 46 1-30 Maintenance overview ten dc circuit breakers on five circuit breaker modules (NTRX42AA, EA) to control power distribution to each electronic unit. Refer to the following table for breaker assignments. Circuit breaker assignment for MSP in OPAC Circuit Assignment Location in OPAC breaker CB01 LCA power converter...
Page 47: Software Description
Maintenance overview 1-31 MSP equipment shelf layout Slot Abbreviation NT PEC Remarks 01–02 Talk battery NTRX44AA Talk battery filter 03–04 Talk battery NTRX44AA Talk battery filter 05–06 Alarm NTRX41AA Alarm module 07–09 Fuse NTRX43AA Fuse module NTRX42EA Circuit breaker module NTRX42EA Circuit breaker module NTRX42AA...
Page 48 1-32 Maintenance overview The LCC clock source is frequency-locked to the primary DS-1 links. The OPAC software controls the LCC clock source with one exception. This exception occurs when both units of the LCM are inactive. In this condition, LCM hardware forces each LCM unit to take the clock source from the LCC of that LCM unit.
Page 49: Fault Conditions
Maintenance overview 1-33 Intracalling capability Intracalling capability is provided for the OPAC with feature package NTX156AA. The intracalling feature distributes the OPAC traffic load again to enable DS-1 links to the host to handle external calls. This feature package allows interswitching of calls between subscribers on the same LCM unit the OPAC serves.
Page 50: Line Drawer Faults
1-34 Maintenance overview Line drawer faults A BIC or line card that has faults causes a fault condition in a line drawer. This fault does not cause a takeover. Link failure DS-1 links Link failures normally associate with the DS-1 interface cards in the host controller or DS-1 link.
Page 51: Load File Mismatch
Maintenance overview 1-35 A remote carrier group alarm (RCGA) appears if the OPAC detects the loss of frame. DS30A links The DS30A links on the P-side of the OPAC can fail. These links connect to an RMM or ESA module. Faults on these links can affect associated modules.
Page 52 1-36 Maintenance overview The following paragraphs describe the functions of these system audits as the functions affect LCC and DS-1 circuits. Link control card maintenance The OPAC monitors the status of the LCC of the OPAC. The OPAC performs this action to make sure of the following: the system correctly transmits control data to the LCC an inactive LCC clock runs fault free The system rewrites control data at normal intervals.
Page 53: Checksums
Maintenance overview 1-37 Checksums For the DMS-100 Family of PMs, a number calculates the checksum (CHKSUM) for each software load. After you load and test the PM, the system compares the checksum total with the expected checksum total. If the totals match, the load is correct. If a mismatch is present, use the LOADPM command to load the PM again.
Page 54 1-38 Maintenance overview Log reports PM128 and PM181 indicate the overload condition in the OPAC. When call processing resumes, the system generates PM128 with response LCM Out of Overload Overload control Overload control maintains system sanity and component sanity during overload conditions.
Page 55 Maintenance overview 1-39 3 If the total number of SMBs available for external messages is less than 15, the following condition applies. The XLCM does not send call processing updates to the XLCM mate. 4 If the total number of SMBs available for external messages is less than 10, the following condition applies.
Page 56 1-40 Maintenance overview Processor occupancy (real-time usage) versus memory blocks Processor occupancy 100% POTS traffic Memory blocks The XLCMs have more memory blocks than small-memory LCMs. Additional messaging requirements are present to accommodate some P-phones. These P-phones include P-phones provisioned with features like displays and Multiple Appearance Directory Number (MADN).
Page 57 Maintenance overview 1-41 Processor occupancy—memory block reduction after real-time overload detection Processor occupancy P-phone MADN traffic 100% POTS traffic Memory blocks Adjusted Normal The XLCM has memory block limits. Outages can occur because the XLCM cannot handle real-time overload. The following conditions can cause outages: 1 The system does not send an overload report because XLCMs do not detect real-time overload.
Page 58 1-42 Maintenance overview Enhancements to the overload protection system In addition to current functions, the enhanced XLCM overload protection system performs the following actions: detects when the XLCM is in real-time overload reports overload to the CM Take protective measures to keep XLCM sanity. To retain XLCM call processing capacity, these protective measures are active for the minimum amount of time required.
Page 59 Maintenance overview 1-43 Overload protection system variable thresholds 25 normal No external messages received 10 SMBs BIC scanning stopped 15 SMBs Updates to mate unit stopped 20 SMBs XPM delays processing originations 100 Available SMBs 48 Available LMBs Total available small and large memory blocks Changes to the real-time subsystem The real-time subsystem changes memory-block system parameters to keep limits of memory block ahead of real-time limits.
Page 60 1-44 Maintenance overview XLCM log report appendages The XLCM appends a new field to current overload messages sent to the CM. This new field reflects the level of the real-time overload. If the CM is at CCM04 or later, this new information appears in the following logs: modified PM180 LCM enters overload log modified PM180 LCM overloaded log The new field contains a ratio of values 0 to 9 to values 5 to 9, where the...
Page 61: Takeover Capability
Maintenance overview 1-45 The XLCM maintains data about overload that provides a summary of the overload period. The summary is appended to the current overload exit message to the CM. If the CM is at CCM04 or later, a modified PM180 LCM out of overload log reflects this information.
Page 62: Lcm Talk Battery Audit
1-46 Maintenance overview LCC takeover The LCC provides an interface between the LCA and the DS-1 interface cards in the HIE shelf. Each LCA associates with an LCC in the HIE shelf. If an LCA shelf fails, the shelf is inactive and takes down the associated LCC.
Page 63 Maintenance overview 1-47 Loss of talk battery The following figure illustrates shows the talk battery distribution in a remote line concentrating equipment (RLCE) frame with two LCE shelves. The power distribution is the same for the OPAC. Talk battery distribution on LCE frame RLCE cooling baffle Talk battery fuses...
Page 64 1-48 Maintenance overview Before, during a loss of talk battery, the system did not indicate a problem unless the talk battery fuse had blown. If the fuse had blown, the LCM indicates (in service) on the MAP display. The LCM performs a line InSv card audit.
Page 65 Maintenance overview 1-49 If the available WLC used for audit testing becomes not available, the audit searches for another available WLC. If the audit finds another available WLC, audit testing continues with the new WLC. If the audit does not find an available WLC, the system generates a minor alarm log report (PM179).
Page 66 1-50 Maintenance overview The MAP commands that can Bsy the last available WLC on an LCM shelf issue a warning message. There are three commands that can cause this condition: the Bsy command at the LTP MAP level when a WLC is posted the Diag command at the LTP MAP level when a WLC is posted.
Page 67 Maintenance overview 1-51 RTSing the first available WLC on the LCM shelf. Loss of talk battery can now be detected on LCM shelf. The minor alarm and ISTb reason will be cleared for the LCM shelf within ten minutes (unless the last WLC becomes unavailable again).
Page 68 1-52 Maintenance overview There can be an additional delay of up to 90 ms before ringing begins in the following event: the talk battery test is in progress on a WLC the WLC receives a call termination request to ring the line For both originations and terminations, there is no impact on call processing with the exception of this short delay.
Page 69: Esa Capability
Maintenance overview 1-53 Use of the SERVORD OUT command to delete the directory number (DN) assigned to the last WLC on an LCM shelf triggers an alarm. In this event, a minor alarm occurs. The Cannot test Talk Battery alarm message indicates the WLC for which the system deleted the last assigned DN.
Page 70: Drawer Testing
1-54 Maintenance overview Drawer testing The OPAC conducts a BIC loop-around test to detect line drawer faults. This test makes sure that the system can send message and speech data to and from the BIC card. If the BIC test fails, the CM implements a full in-service test on both BICs.
Page 71 Maintenance overview 1-55 ANI_COIN_FAIL PARITY_TRAP_FAIL BIC_ACT_TEST POWER_CONVERTER_FAIL BIC_CM_TEST RINGING_FAIL BIC_INHIBIT_TEST RTM_CM_TEST BIC_LA_TEST RTTS_CM_TEST BIC_LOOPAROUND SANITY_TIMEOUT_FAIL BIC_SCAN_TEST SET_MSG_LOOPAROUND DCC_LA_TEST SUBCYCLE_LENGTH_FAIL DS1_LOOPAROUND SUBCYCLE_ORDER_FAIL IUC_LA_TEST TIMING_TEST LC_COM_TEST WRITE_PROTECT_FAIL LCC_FAIL ZERO_CROSSING_INT_FAST_FAIL LCC_LOOPAROUND ZERO_CROSSING_INT_SLOW_FAIL MEMORY_TEST Faults that occur on a BIC drawer affect call processing regardless of the in-service unit that controls that drawer.
Page 72: Bic Relay Test
1-56 Maintenance overview In the takeover mode, the DCC of the inactive unit cannot access drawers for call processing. The DCC of the inactive unit can access drawers for testing. The active LCM unit has access to all drawers through its DCC. Valid drawer faults do not take an LCM unit out of service.
Page 73 Maintenance overview 1-57 define the window size define how many LCM-level tests, described here, run at the same time The following are descriptions of these parameters: BICRELAY_XLCM_TEST_SCHEDULE — This parameter defines the start time (BRTST_START_TIME) and stop time (BRTST_STOP_TIME) for the office-level test. These times cannot be the same.
Page 74 1-58 Maintenance overview Out-of-service unit tests The BIC tests run during OOS LCM unit tests. Drawer tests only test drawers with the ISTb or SysB state. For this reason, OOS unit tests treat previously defective drawers as follows: With both units OOS, the system changes drawers with the SysB state to the ISTb state.
Page 75 Maintenance overview 1-59 BICRELAY command The BICRELAY command allows the user to perform the following actions when a specified LCM undergoes the system Bic relay test (BRT): enable the PM181 drawer state change logs disable the PM181 drawer state change logs reset the PM181 drawer state change logs disallow the PM181 drawer state change logs Operating company personnel can perform the following actions:...
Page 76 1-60 Maintenance overview BICRELAY command parameters Parameter Description Allows the test to begin at the scheduled window. The MAP terminal displays a message that indicates that the test is turned ON. If the current data and time falls in the scheduled window, the office-level test starts immediately.
Page 77 Maintenance overview 1-61 BICRELAY command parameters (continued) Parameter Description RESET Allows you to restart an office-level test as if LCMs are not tested. Turn the test off before you can use this parameter. If you attempt to reset the BRT when BRT is ON, the system displays a message.
Page 78 1-62 Maintenance overview Log PM132 displays a combined report of each drawer-level test in a given LCM. Log PM132 indicates the following: test passes reversal test fails test not run because — line card is not available — problems encountered with the MTE —...
Page 79 Maintenance overview 1-63 If an LCM test runs when the stop time arrives, the system completes the current LCM level test. The BRT records which LCM the system tests first in the given window. The system compares each subsequent LCM to the first LCM. If the LCMs are the same and the current date and time fall in the window, the BRT stops.
Page 80 1-64 Maintenance overview The system skips and tests the drawer on later passes of the BRT if a drawer was earlier OOS call processing is in progress Single-drawer test The single-drawer test is for retest purposes if a failure occurs during the system test. This test runs from the LCM MAP level and is part of the TST DRWR command string.
Page 81: Subscriber Lines Automatic Maintenance
Maintenance overview 1-65 Interactions The BRT uses the test access bus, the MTE, and a single NT6X17 card in each drawer to complete tests. If you run ALT at the same time as a BRT, you can delay both tests. This delay can occur because both tests compete for the same test equipment.
Page 82 1-66 Maintenance overview Office parameter NODEREXCONTROL in Table OFCVAR controls this test. The system performs the REX test during the specified interval for one LCM at a time. The REX test tests LCMs in the same order that you entered the LCMs in the inventory table.
Page 83 Maintenance overview 1-67 includes the unit number if the REX test action is unit-specific (BSY unit, RTS unit, TST unit, synchronization). The log does not include the unit number if the REX test action does not affect the node (SWACT, BSY both units).
Page 84: System Rex Controller: Xpm Maintenance
1-68 Maintenance overview The following limits apply to REX tests: The system REX test controller runs a REX test on one XPM at a time if the office uses the NT-40 processor. The SuperNode supports concurrent REX tests for a maximum of ten XPMs with the same REX test class. A maximum of four LCM_REX_TESTs can run at the same time.
Page 85 Maintenance overview 1-69 QUERY returns the status of the REX test (active or suspended). HELP returns a brief description of the REX test. The REX test order for feature AF3771 is as follows: first, critical nodes like the communications module (CM) and message switch (MS) second, the number of days since the last system or manual REX test third, the order of internal PM number...
Page 86 1-70 Maintenance overview .SREX system dependencies LCMMTC LCM REX LCM TC LCM CI Register Manual SREX Objects TST REX Aspect Gates SREX controller Table REXSCHED SREX database LCM objects LCM_REX_TEST Table OFCVAR NODEREXCONTROL The converter voltage and ring test portions of LCM_REX_TEST require wait states and different test resources.
Page 87 Maintenance overview 1-71 SREX schedules Network LTC 0 LGC 0 LCM 2 LCM 0 RCC 0 RLCM 0 OPM 0 Note 1: REX tests can run on LCM 0 and LCM 1 concurrent with REX tests that run on RCC 0 and LGC 0. Note 2: REX tests cannot run on LCM 2 through LCM 7 if a REX test runs on LGC 0.
Page 88 1-72 Maintenance overview the MAP commands to access REX test failures Emergency stand-alone REX test The ESA REX tests the ability of RLCM units to enter and exit ESA. The ESA REX also tests the ability of RLCM units to message the ESA processor when in ESA.
Page 89 Maintenance overview 1-73 The system displays the following message when you enter the TST COVREX NOW command. Example MAP response: LCM REM1 00 0 will be put into takeover mode during the COV REX Do you want to continue with the COV REX test Please confirm (“YES”, “Y”, “NO”, or “N”) Line concentrating module and ESA-independent REX test The scheduler initiates REX tests on an LCM, and on completion, the...
Page 90 1-74 Maintenance overview The output or log report includes nodes in one of the following states: SysB CBsy ISTb ManB These reports include nodes that failed, aborted or did not complete the last REX test. If a node does not have a REX problem, the string ATP appears in the REX column to indicate that all tests passed.
Page 91: Escalation To Manual Maintenance
Maintenance overview 1-75 REX maintenance records The system generates a maintenance record from a REX test to indicate results of recent REX tests for each LCM you enter. This information is available at the PM level of the MAP display for a posted LCM. Note: Following a reload restart, the system erases the maintenance record for each LCM.
Page 92 1-76 Maintenance overview The following table shows the alarms related to the OPAC that appear under the PM subsystem header of the MAP display. Alarm class codes, displays, and conditions header display Condition All PMs are in service. Alarm conditions are not in effect. The alarm display area is blank.
Page 93: Subscriber Lines Manual Maintenance
Maintenance overview 1-77 The following are alarms that the system can generate: An ESA module in a ManB state generates a minor PM alarm. An ESA module in a CBsy state generates a minor PM alarm. An ESA module in an ISTb state generates a minor PM alarm An ESA module in a SysB state generates a major PM alarm.
Page 95: Opac Power And Environment System (Pes) Maintenance
OPAC power and environment system (PES) maintenance Functional description The Series 800E Cabinet provides the Outside Plant Access Cabinet (OPAC) with an environmentally controlled enclosure. The OPAC consists of the following: electronics compartment, which contains the electronics equipment and batteries attached power pedestal, which controls the ac power and contains the electromagnetic interference filters and ground bars termination compartment, which contains the cable and wire termination,...
Page 96 2-2 OPAC maintenance overview Location of ac outlets and ground bar in electronics compartment of the OPAC Right side view of the electronics compartment Rear Front Heater panels Fan thermostat Low temperature alarm switch GFCI outlet Ground bar Heater plug outlet Heater control sensor Enter the electronics compartment from the front and rear of the cabinet through the pairs of swinging doors.
Page 97 OPAC maintenance overview 2-3 Three 25 in. swing frames hold the equipment shelves and additional battery strings. One 23 in. swing frame holds equipment supplied by the operating company. Each frame pivots on hinges that swing out and away. The hinges allow for cabling, shelf interconnection and access to the backplane of the equipment shelves.
Page 98 2-4 OPAC maintenance overview Electrical compartment and attached power pedestal Operating company or site-provided power meter with meter socket and hub AC power available indicator light Attached power pedestal Emergency generator connector Transfer knife switch Circuit Ground bar breaker panel Primary ac power The pedestal has a 3.5-in.
Page 99: Outside Plant Termination Compartment
OPAC maintenance overview 2-5 The bottom of the ac attached pedestal contains two additional pedestal mounting holes. The cabinet has two mounting holes for final cabinet position. Power requirements A single phase V 176–264 V, 47–63 hz, 3-wire ac commercial power supply, equipped with a 100 A attached power pedestal powers the OPAC.
Page 100 2-6 OPAC maintenance overview build indoor cross-connect (BIX) or screw down terminals for connecting subscriber pairs, DS-1 lines and special service lines You can place optical fibers directly into the electronics compartment for termination at a rack-mounted fiber distribution panel. The fibers travel through a small opening at the top center of the bulkhead.
Page 101 OPAC maintenance overview 2-7 The two previous module assemblies are available for use in optional positions 9 and 10 of the SPC. Note: To maintain UL listing, the SPC must employ UL-listed, five-pin protector modules. Service protection center Termination compartment door VF protection and termination module assembly...
Page 102 2-8 OPAC maintenance overview The protector modules in each SPC module assembly protects the cabinet electronics from lightning and ac surges. The protector modules can be five-pin gas tube or solid state. The solid state is 7X or better. The SPC modules include integral cables with BIX or 3M screw-down connectors on the end.
Page 103 OPAC maintenance overview 2-9 SAI swing frame with BIX connector option Termination compartment door 28 BIX connectors for 700 VF feeder Column 0 Column 1 (system) pairs Forty-four BIX connectors for 1100 distribution (subscriber) pairs in columns 0 and 1 Reserved 4 BIX connectors for SAI swing frame with BIX connectors...
Page 104 2-10 OPAC maintenance overview SAI swing frame with binding post connector option for a total of 1800 pair 700 VF feeder pairs; all of column Termination 1 and part of compartment column 3 door Screw Pair Screw Pair Column 1 Column 2 Column 3 The 700 VF feeder pairs for the 3M bound post option begin in column 1...
Page 105: Environmental Control Equipment
OPAC maintenance overview 2-11 Cables that extend from the equipment side of the protector field pass through a connectorized bulkhead panel. These cables connect to the electronics equipment. The electronics compartment contains the bulkhead panel. This panel filters and shields the EMI. Refer to the following figure Bulkhead of termination compartment, view from electronics compartment Heater panels Bay 0...
Page 106 2-12 OPAC maintenance overview When the internal temperature drops below 41 F (5 C), four 150-W wall heaters turn ON. When the temperature rises above 59 F (15 C), the heaters turn OFF. Low temperature alarms are activated when cabinet temperatures drop to 32 F (0 C).
Page 107 OPAC maintenance overview 2-13 Air induction roof ceiling fans and sensor locations Inside cabinet view looking up High temperature sensor Fans (6) Front Fan filter Rear Fan filter Air induction roof Front view of OPAC Termination compartment Attached power pedestal DMS-100 Family OPAC Maintenance Manual XPM12 and up...
Page 108: Electrical System
2-14 OPAC maintenance overview Electrical system The electrical system consists of several components. These components include the ac interface and distribution, ac generator transfer switch, the modular supervisory panel (MSP), the rectifiers and battery control unit (BCU). Additional components include the batteries and associated cabling and ground bars.
Page 109 OPAC maintenance overview 2-15 A third 25 A rectifier module is required to support additional optional equipment beyond a fully-loaded OPAC. When one module fails, the modules that remain increase output and continue to share the load. Battery control unit Locate the BCU at the top left hand corner of bay 1.
Page 110 2-16 OPAC maintenance overview Rectifier shelf with three MPR25A rectifiers Equalize adjustment Equalize/float switch Float adjustment Fan alarm HVSD adjust Rectifier OK/fail Circuit breakers Inrush current limit fuses Test points Current meter Rectifier 0 Rectifier 1 Rectifier 2 Rectifier shelf The BCU controls the BCC cards and the associated battery strings.
Page 111 OPAC maintenance overview 2-17 Battery strings and string pairs Battery string Battery string pair 0 and 4 1 and 5 2 and 6 Battery string pairs can connect to the load bus, charge bus, discharge bus or none of these (open circuit). Moves from the load to charge bus or charge to load bus must occur through the open-circuit state.
Page 112 2-18 OPAC maintenance overview captive screw attached to the faceplate provides positive memory and conductive coupling to the shelf. The NTRX44AA provides the following functions: termination point for power feeds filtered battery feed through connector interfaces soft-start provided by a current-limiting startup circuit to protect against breaker trip two fail alarms The NTRX44AA has the following operating blocks:...
Page 113 OPAC maintenance overview 2-19 The fully charged capacitors power on a relay. The contacts of the relay connect the capacitors to the output. This soft-start occurs 5 s from the time of application of input power. Alarm circuit This block reports filter failure in the NTRX44AA to the alarm module (NTRX41AA) card through connector P3.
Page 114 2-20 OPAC maintenance overview When any of the first five conditions occurs, the NTRX41AA raises alarms. The NTRX41AA sends signals to the MAP terminal through an NT0X10AA scan card. The NTRX41AA has the following operating blocks: alarm circuit maintenance block Alarm circuit The following four alarm inputs activate the alarm circuit that consists of transistor logic : battery-input voltage, which triggers a FRAMEFAIL signal for an...
Page 115 OPAC maintenance overview 2-21 Maintenance block The NTRX41AA provides maintenance features like jacks for telephone, data and ABS. These features provide for interoffice communication and data transmission. These features require dedicated FX facilities. The relationship between the functional blocks appears in the following figure.
Page 116 2-22 OPAC maintenance overview A separate two-pin connector provides alarm output. The assembly includes eight fuse holders mounted on the faceplate. The fuse holder connector leads connect to the PCB. A captive screw attached to the faceplate provides positive hold and conductive coupling to the shelf. The NTRX43AA provides the following functions: supplies eight current-limited outputs for different circuits reports fuse failures to the NTRX41AA alarm module...
Page 117 OPAC maintenance overview 2-23 The primary functions of the NTRX42 are as follows: to monitor and detect converter failures to trip breakers when overcurrent conditions exist to trip breakers on converter failure to provide battery feed samples for the alarm module to respond to ARLB conditions The NTRX42 contains the following operating blocks: ARLB...
Page 118 2-24 OPAC maintenance overview The fan alarm module occupies one card position in the MSP. The module occupies slot 20, because this module does not require visual access with the MSP front cover closed. A captive screw attached to the faceplate provides positive hold and conductive coupling to the shelf.
Page 119 OPAC maintenance overview 2-25 Grounding Electrical Electronics compartment Termination compartment compartment Ground bars Ground bars 6 AWG wire Bonded to cabinet wall OPAC grounding network The cabinet ground bar located in the electrical compartment connects to the OPAC main ground. The following figures illustrate the ground bar terminations.
Page 120 2-26 OPAC maintenance overview Ground bar assembly, on AC bulkhead viewed from inside cabinet Equipment frame and door straps Mounting bolt Mounting bolt (cabinet grounding) (cabinet grounding) Ground bar to ground Equipment frame and door straps bar connection Battery return ground Roof ground connection HIE ground RMM ground...
Page 121: Opac Power And Environmental System Maintenance
OPAC maintenance overview 2-27 Ground bar assembly on SAI bulkhead viewed from SAI compartment Mounting bolt Mounting bolt (cabinet grounding) (cabinet grounding) Terminations available for OSP cable shield ground Unassigned Right hand SPC block ground Left hand SPC block ground OPAC power and environmental system maintenance Maintenance and user interface commands for the OPAC are the same as for the Remote Line Concentrating Module (RLCM).
Page 122: Opac Battery Backup System
2-28 OPAC maintenance overview alarm detection and automatic battery switching when OMPES detects these conditions: — ac power failure — BCC fuse 0 or 1 failure — rectifier 0 or 1 failure — high temperature (EHT) log reports that record the changing events or failures that the OMPES system encounters one audit each hour in the OPMPES to confirm the condition of the OPMPES as viewed by the software...
Page 123: Opac Power Matrix And Example Current Demand
OPAC maintenance overview 2-29 The estimated backup time for OPAC configured for 256 lines is 7.5 h when equipped with the following: — ten line drawers and 256 line cards — six string (three string pairs) of Eagle-Picher batteries — a call rate of 3.0 CCS, where 8.3% of lines are off-hook —...
Page 124 2-30 OPAC maintenance overview RMM shelf — one NT2X59 tone pad (group CODEC) card — one NT6X74AB RMM control card — one NT2X09AA more than one output power converter — one NT2X06AB power converter common features card — one NT2X10AC/2X11AC line test unit (LTU) analog/digital (pair) —...
Page 125 OPAC maintenance overview 2-31 Frame current with line drawers supplied (continued) Frame current demand Drawers Line cards 14.64 15.02 15.4 15.78 16.16 —end— Current demands with the line off-hook The amount of current that an off-hook line draws depends on the length of the loop.
Page 126: Opac Power Requirements
2-32 OPAC maintenance overview optional equipment current draw (maximum) is 15 A total frame current is 35.32 A OPAC power requirements The power requirements for the OPAC at a call rate of 3.0 CCS appear in the following table. OPAC power requirements at 3.0 CCS Total frame demand...
Page 127: Calculating Battery Backup Time
OPAC maintenance overview 2-33 Calculating battery backup time Use these values to calculate approximate battery backup time for the different configurations. Use the following steps complete the calculation: 1 Calculate the total battery power reserve. — An- Eagle Picher battery at an 8-hour discharge rate is 46.4 Ah capacity.
Page 128: Normal Charge Time
2-34 OPAC maintenance overview Reserve power estimates for 3.0 CCS call rate (continued) Estimated backup time Estimated (hours) short backup time loops: average Total frame (hours) short loops with demand (A) loops: average additional 15 A short average loops without load Drawers Lines...
Page 129: Fault Conditions
OPAC maintenance overview 2-35 Fault conditions The PES and the RMM use a system of alarms and audits to monitor fault conditions for the OPAC. PES description The PES controls the power and environmental conditions of the OPAC. The PES has two functions: the alarm system, that monitors fault conditions the battery control and testing system, which is an automatic maintenance feature...
Page 130 2-36 OPAC maintenance overview PESALRM indicators (continued) Alarm Functions monitored High battery temperature, not supported on the OPAC, always a dot (.) SIDE Side door open, not supported on the OPAC, always a dot (.) Note 1: The ac alarm is not a physical alarm that the NT0X10AA scan card monitors.
Page 131 OPAC maintenance overview 2-37 PES cards The PES cards are: BCC battery charging controller card (NT8X02) BCCDVR battery charging controller driver card (BCCDVR) (NT3X09AA) PESALRM PES alarm detector card (NT0X10AA) The following list describes the OPM alarm conditions and the priority and causes for each card Red—The system detects one or more serious problems.
Page 132: Load Bus Low Voltage Alarm
2-38 OPAC maintenance overview The amber condition occurs if the BCCDVR and OESALRM cards have a disabled battery rotation audit or a battery string marked F. The F indicates if the string fails weekly tests. Green—The system does not detect an alarm. Every card and facility are in service (InSv) or normal.
Page 133: Automatic Maintenance
OPAC maintenance overview 2-39 The sequence of easily seen events is as follows: power failure occurs, load bus and batteries are at –52 V in the first 90 s, voltage drops to approximately –49 V in the next hour, voltage rises to approximately –50 V because of the battery characteristics the voltage drops;...
Page 134: Battery Control And Testing System
2-40 OPAC maintenance overview Battery control and testing system The battery control and testing system consists of three sections: BCC—The BCC consists of two NT8X02AA or AB cards. The NT8X02 contains the OPAC charge bus. The charge bus is a dc-to-dc converter.
Page 135: Hardware Audit
OPAC maintenance overview 2-41 For example, assume the level of the load bus rectifiers is 52.0 V dc. A battery string can move from the load bus to the charge bus. When a battery string moves, the charge bus voltage adjusts to above the load bus current.
Page 136 2-42 OPAC maintenance overview NT0X10AA PESALRM card Each hour the hardware audit polls the PESALRM card and compares the reported data with alarm data that the software stores. If the reported data does not match stored data, the system generates a PES102 log report. The report contains the message HW battery or alarm state not = sw .
Page 137: Battery Rotation And Testing Audit
OPAC maintenance overview 2-43 The voltage can drop to –47 V or less than –47 V. If this event occurs the system generates a PES104 log report with the message load bus low . The load conditions determine the amount of reserve power that voltage the batteries have.
Page 138: Normal Battery Rotation Mode
2-44 OPAC maintenance overview The OPAC intermittent charging scheme offers the following advantages: — Extended battery life—Intermittent charging instead of float charging can extend battery life by 50 % to 100 %. Lead-acid batteries are very sensitive to temperature. Every 7 C to 10 C (45 F to 50 F) the temperature rises above 25 C (77 F) causes a life reduction of 50 %.
Page 139 OPAC maintenance overview 2-45 Normal battery rotation mode During normal battery rotation mode, battery string pairs are rotated from the load bus to the charge bus. This action occurs for a given time each week. Battery testing occurs each Sunday. Office parameters in table OFCSTD control battery rotation and testing.
Page 140 2-46 OPAC maintenance overview Battery rotation and testing parameters entered in table OFCSTD (continued) Default Parameter Range Description value OPM_VOLT_TST_DIS 0 through –495 This parameter is the value to which the –600 voltage of the battery string compares during the discharge test. The default value for Yuasa and Eagle Picher batteries is –495, or –49.5 V.
Page 141 OPAC maintenance overview 2-47 MEAS is measure voltage OPAC battery rotation and test cycle Week Sunday Monday Tuesday Wednesday Thursday Friday Saturday MEAS MEAS DISCHG LOADBUS LOADBUS LOADBUS LOADBUS LOADBUS for 24 MEAS MEAS MEAS ST2 MEAS MEAS CHG ST1 CHG ST2 CHG ST3 CHG ST0...
Page 142 2-48 OPAC maintenance overview OPAC battery rotation and test cycle (continued) Week Sunday Monday Tuesday Wednesday Thursday Friday Saturday MEAS DISCHG LOADBUS LOADBUS LOADBUS LOADBUS LOADBUS for 24 MEAS MEAS MEAS ST0 MEAS MEAS CHG ST3 CHG ST0 CHG ST1 CHG ST2 O/C ST2 O/C ST3...
Page 143 OPAC maintenance overview 2-49 Less than four batteries can be entered for an OPAC. If this event occurs no battery rotation activity takes place during periods reserved for not entered strings. A minimum of four battery strings can be provisioned in the OPAC.
Page 144 2-50 OPAC maintenance overview 7 When the charge period is complete, the pair is open-circuited. 8 At OPM_CHARGE_START_TIME on Tuesday, the system measures and tests the voltage against OPM_VOLT_TST_CHG. If the voltage fails the test, the system marks the string as failed. The system returns the pair to the load bus and the charge cycle for the next string begins.
Page 145 OPAC maintenance overview 2-51 Cycle rotation for week 2 (continued) Week Sunday Monday Tuesday Wednesday Thursday Friday Saturday TST DIS CHG 1 LDB ST2 LDB ST3 LDB ST1 O/C ST2 O/C ST3 O/C ST0 TST MIN TST MIN 3 TST MIN 0 MIN1 CHG ST3 CHG ST0...
Page 146 2-52 OPAC maintenance overview Disable the battery rotation and testing software when you perform manual maintenance on the batteries. Manually manipulate battery strings from the PES MAP level after you disable the battery rotation and testing audit. When manual battery maintenance is complete, use the AUDIT ENABLE command string to enable the battery rotation and testing audit.
Page 147: Escalation To Manual Maintenance
OPAC maintenance overview 2-53 When the OPAC is in post-ac failure mode (short), at the PES MAP Week display shows Post-ac failure mode (extended) If an ac outage exceeds the short ac failure interval, the outage is an extended ac outage. When this event occurs, complete the following steps: 1 The strings remain on the load bus for 24 h.
Page 148: Manual Battery Actions And System Voltage Measurements
2-54 OPAC maintenance overview If the user enters the TST command and does not enter parameters, the system tests the three systems. If the user enters the parameter PESALRM, BCCDVR, or CHARGEBUS, the system only tests that system. The PESALRM and the BCCDVR card must be in the ManB state before a manual card test can occur.
Page 149 OPAC maintenance overview 2-55 OPENCKT_ (0–3) Use the OPENCKT command to move a battery string pair from the load bus or charge bus to the open circuit state. The OPENCKT command operates on the battery string pairs as follows: OPENCKT_0—moves battery strings 0 and 4 to an O/C state OPENCKT_1—moves battery strings 1 and 5 to an O/C state OPENCKT_2—moves battery strings 2 and 6 to an O/C state CHARGE_ (0–3)
Page 150: Querying Pes Alarms
2-56 OPAC maintenance overview MEASURE PAIR—measures the voltages of battery strings as follows: — 0 measures the voltages of strings 0 and 4 — 1 measures the voltages of strings 1 and 5 — 2 measures the voltages of strings 2 and 6 MEASURE ALL—measures the voltages of the load bus, BCC 0, BCC 1, and all battery string pairs.
Page 151 OPAC maintenance overview 2-57 The following example describes a QUERYPES FLT display, with the ECU alarm set, the audit disabled, and battery string pair 1 failed. QueryPES flt ECU F, BCC0: . BCC1: . AUDIT DIS In the QUERYPES display, faults are not present, but extended post-ac processing is in progress: QueryPES PES 0 ,...
Page 152 2-58 OPAC maintenance overview The following figure describes a typical posted PES in the green state. Posted PES 2 with OPAC in GREEN state Trks Appl SysB ManB OffL CBSY ISTB InSV 0 Quit 2 Post_ AMBER GREEN OFFL 6 Tst_ 2 Cond: GREEN REM1...
Page 153 OPAC maintenance overview 2-59 Posted PES 2 with ac failure occurrence Trks Appl 1PES SysB ManB OffL CBSY ISTB InSV 0 Quit 2 Post_ AMBER GREEN OFFL 6 Tst_ 2 Cond: REM1 7 Bsy_ Audit Week 8 Rts_ Common Rectifiers 9 OffL_ FL0 FL1 CL0 CL1 BCCDVR...
Page 154: On-Site Outdoor Physical Maintenance
2-60 OPAC maintenance overview Trouble explanation Trks Appl 1LINK 1PES SysB ManB OffL CBSY ISTB InSV 0 Quit 2 Post_ AMBER GREEN OFFL 6 Tst_ 2 Cond: REM1 7 Bsy_ Audit Week 8 Rts_ Common Rectifiers 9 OffL_ FL0 FL1 CL0 CL1 BCCDVR PESALRM ECU FSP...
Page 155 OPAC maintenance overview 2-61 The termination compartment door can remain open for a maximum period of 10 to 20 min at a low minimum ambient temperature of -15 C (+5 F). For work that requires open doors for longer periods, erect a tent over the OPAC cabinet.
Page 156 2-62 OPAC maintenance overview Rectifier voltage adjustments Perform the rectifier voltage procedure every three months. Refer to the following procedure for instructions on the rectifier voltage adjustments. 1 Proceed to the OPAC site. 2 Use a voltmeter with a minimum of 2 % accuracy to measure the rectifier output voltage.
Page 157 OPAC maintenance overview 2-63 Battery capacity tests If the MTU measurements are within specifications, perform these tests every six months. If the MTU measurements are not within specifications, perform the tests every three months. To prevent conflicts with the automatic battery testing, do not perform this procedure on Monday or Tuesday.
Page 158: Manual Test Procedures For System-Failed Battery Strings
2-64 OPAC maintenance overview Manual test procedures for system-failed battery strings The system can mark a battery string pair as failed. When this event occurs the PES117 log records the voltages of the strings and the test that fails. The office parameters set the values used for testing.
Page 159 OPAC maintenance overview 2-65 7 If the voltage equals or is less than OPM_VOLT_TST_CHG, the string can still accept a charge. BSY and RTS the BCCDVR to return the battery string pair to service. If O/C test marks the same string failed within the next two months, proceed directly to the OPAC site tests.
Page 160 2-66 OPAC maintenance overview OPAC site tests 1 Make sure the AUDIT is disabled and the failed battery string pair is open-circuited from the PES MAP level. 2 Proceed to the OPAC site to perform the following steps. 3 Use a voltmeter with a minimum 0.2 % error, to measure the voltage of both rectifiers using the test points on the face of the rectifiers.
Page 161: Esa Maintenance Overview
ESA maintenance overview Functional description The Outside Plant Access Cabinet (OPAC) with the Emergency Stand-Alone (ESA) feature package NTX154AA is a different configuration than the standard OPAC. Special hardware components are necessary in addition to the ESA software. This chapter treats the ESA configuration separately. The OPAC is a remote configuration.
Page 162 3-2 ESA maintenance overview OPAC ESA hardware representation (up to 32 DS30A links) Unit 0 Unit 1 (up to 6 DS-1 links) OPAC Unit 0 Unit 1 Unused C-side message links to the OPAC When the OPAC goes into ESA mode, the previous diagram is not accurate. In ESA mode, the ESA processor acts as the host peripheral module (PM).
Page 163: Esa Operation
ESA maintenance overview 3-3 OPAC hardware representation in ESA operation (up to 32 DS30 links) Unit 0 Unit 1 (Links between the OPAC and the LTC are inoperable.) OPAC Unit 0 Unit 1 ESA processor acts as the host PM. Links 2 and 3 act as P-side single channel message links to the OPAC.
Page 164: Esa Hardware
3-4 ESA maintenance overview The ESA processor is the only processor at the OPAC that can communicate with the CM during ESA exit. The DMS-100 switch instructs the ESA processor to exit ESA. During ESA mode, call processing occurs through the ESA processor. The ESA processor has a module of software, called the ESA CC.
Page 165 ESA maintenance overview 3-5 2. The NTMX45AA based ESA package consists of two pieces of equipment. This package includes an ESA processor that enables duplicate Nxx in ESA mode and provides firmware downloads. This card has 8 Mbyte of on-card memory. With this package, the ESA memory card is not needed and slot 14 has a filler plate.
Page 166 3-6 ESA maintenance overview OPAC with ESA hardware block diagram Computing module Line trunk controller (LTC) DS-1 links DS-1 interface DS-1 interface DS-1 interface card (6X50) card (6X50) card (6X50) Link control card (LCC) Link control card (LCC) 6X73 6X73 Interswitching channels ESA tone and clock card...
Page 167 ESA maintenance overview 3-7 NT6X45AF – ESA processor card This card is the same processor card used in the LTC. The LTC processor card, when used in the RLCM equipment frame, is called the ESA processor. NT6X47AC – 4 Mbyte memory card This card is the same memory card used in the LTC.
Page 168 3-8 ESA maintenance overview Host interface equipment shelf HIE: NT6X11AA Power Power RG 0 RG 1 Fillers converter converter 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 The following table describes the cards in the host interface equipment shelf.
Page 169 ESA maintenance overview 3-9 Host interface equipment cards Slot Abbreviation NT PEC Remarks 22–24 NT2X70 Power converter NT2X70 Power converter Note 1: When ESA is not provisioned, these card slots have filler panels (NT0X50AA). When selected, the ESA package has two possible configurations. Refer to sections “ESA hardware” and “ESA control complex”...
Page 170: In-Service Firmware Downloading
3-10 ESA maintenance overview Remote maintenance module cards (continued) Slot Abbreviation NT PEC Remarks NT0X50 Filler panel 04–06 NT2X90 Test trunk circuit MTUA NT2X10 Multi-line test unit, analog MTUD NT2X11 Multi-line test unit, digital 09,10 NT2X48 DTR (Refer to note.) 11,16 NT0X50 Filler panel...
Page 171 ESA maintenance overview 3-11 Note: In-service firmware downloading refers to the loading of the firmware while the unit is InSv. The upgrade of the firmware occurs with the XPM unit out of service (OOS). LOADFW command syntax determines the firmware load application from the firmware upgrade application.
Page 172 3-12 ESA maintenance overview To verify the firmware load enter the following command at the MAP display terminal: >QUERYPM CNTRS Firmware upgrade After loadfile verification, the XPM is ready for the firmware upgrade. To upgrade the firmware use one of the following command string sets: >LOADFW UPGRADE Note: By using the LOADFW command with the UPGRADE option, the firmware is upgraded to the new firmware load.
Page 173: Software Operation
ESA maintenance overview 3-13 Software operation Refer to the Extended Peripheral Module Translations Reference Manual, 297-8321-815 for an overview of the software operation of the ESA feature package. This overview includes a complete list of the features. Intracalling during ESA mode The ESA mode uses the intracalling feature which also functions in non-ESA mode.
Page 174 3-14 ESA maintenance overview Every line can have several call processing line states. The call processing line states determine what the system does with a specified message. The ESA CC first screens the line states of all messages. The call process controller (CPC) handles all lines in the following states: idle originate abandon...
Page 175 ESA maintenance overview 3-15 ESA CC basic call processing structure Maintenance Requests A terminal sends maintenance requests and event messages, such as digit collection, on-hook, and off-hook to the TPT. Terminal processing task (TPT) The TPT sends messages to the server for coding or decoding.
Page 176 3-16 ESA maintenance overview The first byte (unprotected line data) in the TST is divided as follows: error count/cause: The first four bits contain the count of the errors the software of a line detects. Each error increases the count. If the error count reaches a preset threshold, the system removes the line from service.
Page 177 ESA maintenance overview 3-17 The second byte in the TST contains the CPB index/origination count. A CPB is the data base associated with an active call process. There are only enough CPBs to handle the maximum number of intraswitched and interswitched calls.
Page 178 3-18 ESA maintenance overview — coin disconnect supervise: The originating coin line has gone on-hook first. The system uses the coin release function. Call processing waits for the result of the coin function. Supervision continues on the terminating line. — coin disconnect: The terminating coin line has gone on-hook first. The system uses the coin release function.
Page 179: Esa Translation Data
ESA maintenance overview 3-19 Digitone receiver management The ESA processor needs to know the location of the DTRs in the RMM. The DTR data is downloaded with the static data. Because Digitone (digital 4-channel) receivers are allocated in a circular fashion, all receivers get equal distribution.
Page 180: Supported Subscriber Line Types
3-20 ESA maintenance overview The user manually downloads general static data when the ESA CC is ManB. The system loads the static data when the ESA CC is RTS. The user only loads ESA static translations data when the ESA CC is in-service (InSv).
Page 181: Supported Subscriber Services
ESA maintenance overview 3-21 MDC lines The supported MDC line types include the following: Loop and ground start lines. 500 and 2500 set. Meridian business set (MBS). The MBS is treated as a 2500 set. The primary directory number (PDN), HOLD, and RELEASE keys are supported.
Page 182: Channel Configuration
3-22 ESA maintenance overview inter-customer group calling by the same dialing plan, except lines with the denied incoming option the system treats primary numbers of the multiple appearance directory (MADN) groups as regular MDC lines multiple centrex customer dialing plans Channel configuration On ESA entry, the system reconfigures the C-side channel map of the OPAC to provide more interswitch channels for ESA call processing.
Page 183: Exiting Opac Esa Mode
ESA maintenance overview 3-23 Channel availability after ESA entry (continued) Number of Number of Port number Intrachannels Interchannels intrachannels interchannels 2, 3, 5, 7, 8, 10, 1, 4, 6, 9, 11, 14, 12, 13, 15, 18, 17, 20, 22, 25, 19, 21, 23, 24, 27, 30 26, 28, 29, 31...
Page 184 3-24 ESA maintenance overview The system exit sequence are as follows. 1 The system restores C-side communications between the CM and the OPAC. 2 The CM discovers the OPAC is in ESA mode. 3 The CM enters ESA time-out mode. 4 When the CM times out, the CM sends an ESA-exit request to the ESA processor.
Page 185 ESA maintenance overview 3-25 The following steps describe the manual exit sequence: 1 The system restores C-side communications between the CM and the OPAC. 2 The CM discovers the OPAC is in ESA mode. 3 The CM queries the OPAC for the number of active calls. 4 The CM displays the number of active calls on the MAP display.
Page 186 3-26 ESA maintenance overview OPAC ESA tones Tone ID Tone type Channel appearance Cadence (in seconds) (HEX) Port Channel Busy Reorder 0.25 0.25 ROH* Audible Warble Dial Note: Idle tone uses a start-cadence message, but the OPAC connects the receive path to a port that provides idle tone. Providing tones The following steps provide tone to a subscriber.
Page 187: Ringing During Esa Mode
ESA maintenance overview 3-27 Ringing during ESA mode The OPAC needs duplicated ringing generators. The OPAC ESA mode supports the following ringing types: coded frequency superimposed immediate Treatments during ESA mode The OPAC ESA mode supports the following treatments, or tones: busy reorder receiver off-hook (ROH)
Page 188: Restrictions During Esa Mode
3-28 ESA maintenance overview Restrictions during ESA mode As a global restriction, ESA mode does not support the following: line diagnostics. MADN group operation. recorded announcements. As a restriction that applies during ESA mode for POTS lines and features, ESA mode does not support the following: Local call detail recording (LCDR).
Page 189: Unusable Communication Links
ESA maintenance overview 3-29 Unusable communication links The following conditions do not allow the use of communication links from the OPAC to the CM: There is a break in the links between the OPAC and the host. The peripheral side (P-side) message link (DS-1 cards) of the LTC are pulled out.
Page 190: Automatic Esa Maintenance
3-30 ESA maintenance overview The following fault conditions can occur during ESA operation: line errors — too many originations — confusion message received — line translation error — dial pulse error (bad digits) — Digitone error (bad digits) — ringing error —...
Page 191: Digitone Receiver Audit
ESA maintenance overview 3-31 Digitone receiver audit The DTR audit monitors the status of the Digitone receivers. If a call process possesses a DTR for longer than two audits, the audit terminates the process. A cleanup process starts for the CPB. The audit also makes the DTR ready for use when the audit marks the DTR free.
Page 192: Routine Exercise Test
3-32 ESA maintenance overview Note 2: If the OPAC is out of service during the daily update, the system updates the data as part of the normal RTS sequence. Routine exercise test Routine exercise (REx) tests are a series of tests performed on ESA hardware.
Page 193: Escalation To Manual Maintenance
ESA maintenance overview 3-33 6 If the REx tests passed, the system uses the other LCM unit to test the ESA module. ESA ROM diagnostics The ESA processor has a ROM diagnostic test. Operating company personnel uses the LOADPM command to implement this test. This test consists of the standard XPM ROM tests, which test the processor and memory complex, and also basic messaging functions.
Page 194: Esa Manual Exit
3-34 ESA maintenance overview The steps that follow manually download static data: Display the ESA MAP level for the desired OPAC. Make sure the ESA processor is InSv or ISTb. To load the ESA static data, type >LOADPM CC ESADATA and press the Enter key.
Page 195: Opac Signaling
OPAC signaling Signaling for OPAC This section describes the signaling that OPAC uses to communicate with the DMS-100 switch and provide subscriber services. The following subsections discuss OPAC signaling protocols and the types of subscriber services that the OPAC signaling protocols support. OPAC signaling links The DS-1 interface cards (NT6X50AA, AB) are in the host interface equipment shelf.
Page 196: Signaling Protocol
4-2 OPAC signaling message channels to the host XPM. These channels occupy channel 2 on each of the primary links. The emergency stand-alone (ESA) processor also requires two message channels to the host. These message channels occupy channel 3 on each of the primary links.
Page 197 OPAC signaling 4-3 DMS-X handshaking protocol Link control messages (request to send, send) Message header: DMS-X Message data Message Checksum or cyclic redundancy check Link control messages (acknowledgment) The DMS-X protocol includes a cyclic redundancy check (CRC) code for error detection. Message time-out and message checksum or CRC calculation performs message error detection.
Page 198: Signaling Functions
4-4 OPAC signaling DMS-X message format Byte Destination task ID Source task ID Message header Node number Drawer number task ID Line number Message data byte (variable length) Actual message EOM = End of message SOM = Start of message LCM = Line concentrating module...
Page 199 OPAC signaling 4-5 Call origination Signaling transmits on-hook and off-hook signals. The signals allow the host XPM to identify subscribers that request service. When a subscriber lifts the handset from the cradle, a voltage source in the OPAC provides a steady flow of current. The current travels through the transmitter.
Page 200 4-6 OPAC signaling Dial pulse signaling The LCM of the OPAC performs dial pulse digit collection. The number of on-hook intervals in a train of pulses represents the numeric value of each digit. This design occurs with dial pulsing. Short off-hook intervals separate the on-hook intervals of each digit. At the same time, long off-hook intervals separate the digits.
Page 201 OPAC signaling 4-7 coded ringing (cadencing) frequency selective ringing (FSR) ESA signaling The ESA feature is an emergency service that provides a subset of call processing capabilities. This subset occurs when a loss of communication to the host occurs. The ESA feature includes call processing for basic station-to-station calls in the OPAC for plain old telephone service (POTS) and MDC lines.
Page 203: Opac Hardware
OPAC hardware This chapter describes the Nortel Outside Plant Access Cabinet (OPAC) hardware components. The Nortel OPAC hardware components give operating company clients and subscribers the full resources of the digital switching system. The following sections describe the hardware components in the OPAC. These sections describe additional components.
Page 204 5-2 OPAC hardware Electronics compartment (cabinet front view) Fuse panels Air induction roof Door switch Filler panel PO747175 Rectifiers Cooling unit Cooling unit Termination Bay 0 Bay 1 Attached compartment power pedestal The following sections describe the three OPAC compartments. Electronics compartment This compartment houses the frames that mount electronic shelves and batteries.
Page 205 This compartment distributes ac power from the attached power pedestal. Refer to the figure Electronics compartment, that shows bay 2 and 3 Nortel-provided equipment from a rear cabinet view. Included with the power pedestal are rectifier, ground fault interrupt (GFI), and heater circuit breakers.
Page 206 A large 7.5 in. by 24 in. opening is along the lower rear bulkhead wall inside the pedestal. The opening allows full access to the Series 800E. Cabinet master ground bar and mounting hole locations. Electronics compartment that shows bay 2 and 3 Nortel-provided equipment (rear cabinet view) 8X32 cross-connect block for RMM scan...
Page 207 OPAC hardware 5-5 Electrical compartment with attached power pedestal (cabinet view from right) Operating company- or site-provided power meter with meter socket and hub ac power available indicator light Attached power pedestal Emergency generator Transfer knife switch connector Circuit Ground bar breaker panel Primary ac power...
Page 208 5-6 OPAC hardware Termination compartment The termination compartment is on the end of the cabinet opposite the ac power pedestal. The following figure contains this compartment. This compartment is the interface between the electronics equipment and the outside plant cables. Access is through a full-height single door that is not alarmed.
Page 209: Line Concentrating Module
OPAC hardware 5-7 The voice frequency (VF) and T1 lines connect to the electronics compartment through NTRX65 Service Protection Center (SPC) modules. These modules provide surge and lightning protection and electromagnetic interface (EMI) filtering for the cable connections to the electronics shelves. Ten SPC modules, or 1000 pairs are possible.
Page 210: Host Interface Equipment
5-8 OPAC hardware The circuits in the LCM appear in the following list: NT6X51AA, AB—LCM processor or XLCM processor NT6X52AA—DCC NT6X53AA—Power converter 5V/15V NT6X54AA—Bus interface card (BIC) one for each line drawer A maximum of 640 line cards. Line cards Each one of the ten line drawers of the LCM contains a pair of line subgroups (LSG) and a single BIC.
Page 211: Remote Maintenance Module
OPAC hardware 5-9 In order for the OPAC to function with Emergency Stand-Alone (ESA) capability, the HIE shelf must include the following additional cards: NT6X45AF—ESA processor NT6X47AC—ESA memory NT6X75AA—ESA tone and clock card. Link control cards The LCCs are in the HIE shelf NT6X1101. The LCCs convert data between DS-1 format, to and from the host office, and DS30A format, to and from the LCM.
Page 212: Modular Supervisory Panel
5-10 OPAC hardware The common cards in the RMM appear in the following list: NT2X06AB—Power converter common feature NT2X09AA—Multi-output power converter NT2X59AA—Group CODEC DMS-100/200 NT6X74AB—RMM control card. Temporary cards in the RMM are: NT0X10AA—Miscellaneous scan card NT2X10AB—Line test unit (LTU) analog card NT2X10BA—Multiline test unit (MTU) analog card NT2X11AA—LTU digital card NT2X11BA—MTU digital card...
Page 213: Rectifiers
OPAC hardware 5-11 Rectifiers The rectifier shelf contains two or three NT5C06CA MRP25E ac-to-dc rectifiers. A minimum of two rectifiers are required. Three rectifiers allow for n+1 redundancy when optional or customer installed equipment requires dc power dissipation over 25 ampere (A) total. The 25 A rectifiers accept ac power from the attached power pedestal.
Page 214 5-12 OPAC hardware Cooling units The OPAC has two cooling units under the HIE and RMM shelves. Each cooling unit contains two fans. These fans are provided in addition to the fans in the roof assembly. These fans run continuously to circulate air in the cabinet.
Page 215: Additional Opac Components
OPAC hardware 5-13 Weatherproofing Closed-cell gasketing mounts on the internal edge of each door. Closed-cell gasketing provides a weather seal on the four doors of the electronics compartment. This gasketing has an internal EMI gasket that contacts conductive tape to provide the EMI seal. Additional OPAC components The following sections discuss the optional components available for the OPAC.
Page 216: Operating Company-Provided Equipment
5-14 OPAC hardware Operating company-provided equipment The OPAC provides 26 vertical mounting spaces of 23 in. rack in the left rear frame, in bay 2, for operating company-provided equipment. The OPAC provides approximately 10 in. by 19 in. in the right front frame, in bay 1, for operating company-provided equipment.
Page 217 OPAC hardware 5-15 OPAC battery arrangement and back cabinet view without earthquake protection Floor batteries Cabinet front Cabinet rear String 0/Pair 0 String 1/Pair 1 String 2/Pair 2 String 4/Pair 0 String 5/Pair 1 Batteries, rear cabinet view, with earthquake protection String 6/Pair 2 kits installed DMS-100 Family OPAC Maintenance Manual XPM12 and up...
Page 218: Earthquake Protection Equipment
5-16 OPAC hardware Earthquake protection equipment Earthquake protection battery covers, are available for the floor mounted batteries. The NTRX6310 kit is available for the 4-string option. The NTRX6311 kit is available for the 6-string option. The NTRX6311 kit contains brackets for the door mounted batteries. Brackets for the door mounted batteries are in the NTRX63AC battery string upgrade kit.
Page 219 OPAC hardware 5-17 OPAC battery arrangement and back cabinet view with earthquake protection Batteries, rear cabinet view, with earthquake protection kits installed DMS-100 Family OPAC Maintenance Manual XPM12 and up...
Page 221: The Opac Recovery Procedures
The OPAC recovery procedures This chapter contains the recovery procedure for the Outside Plant Access Cabinet (OPAC) standard configuration. Maintenance personnel use this procedure to return to service an OPAC from a completely out-of-service condition. DMS-100 Family OPAC Maintenance Manual XPM12 and up...
Page 222: Recovering An Out-Of-Service Opac
Recovery Procedures Recovering an out-of-service OPAC Alarm display Trks Appl nLCM Application Use this procedure to recover service in an OPAC when both units of the line concentrating module (LCM) are out of service. This condition always produces a central side busy (CBsy) alarm. The OPAC alarm appears under the PM header in the MAP subsystem display.
Page 223 Recovery Procedures 6-3 Recovering an out-of-service OPAC (continued) Summary of Recovering an out-of-service OPAC This flowchart summarizes the procedure. At PM level of Use the instructions that follow MAP terminal, this flowchart to perform the display CBsy procedure. LCMs Busy, test and CBsy Post host PM RTS links with...
Page 224 6-4 Recovery Procedures Recovering an out-of-service OPAC (continued) Summary of Recovering an out-of-service OPAC (continued) Power down Power up LCM Replace card Load LCM unit LCM unit unit Test passes? Load passes? Test LCM unit Contact maintenance Card list? support group Contact maintenance support group...
Page 225 Recovery Procedures 6-5 Recovering an out-of-service OPAC (continued) Summary of Recovering an out-of-service OPAC (continued) End of RTS LCM unit RTS passes? procedure Contact maintenance support group ESA timer set Are links Check links to Post the LCM for manual stable? OPAC recovery?
Page 226 6-6 Recovery Procedures Recovering an out-of-service OPAC (continued) Recovering an out-of-service OPAC At the MAP terminal Make sure that the OPAC receives power. To silence an alarm that remains audible, type: >MAPCI;MTC;SIL;PM and press the Enter key. To identify the OPAC with defects, type: >DISP STATE CBSY LCM and press the Enter key.
Page 227 Recovery Procedures 6-7 Recovering an out-of-service OPAC (continued) To display the peripheral side (P-side) links, type: >TRNSL P and press the Enter key. Example of a MAP response: Link 2: LCM REM1 00 0 2; Cap MS; Status: SysB ;MsgCond: CLS Link 6: LCM REM1 00 0 1;...
Page 228 6-8 Recovery Procedures Recovering an out-of-service OPAC (continued) To post the OPAC that you noted in step 4 with the alarm condition, type: >POST LCM site frame lcm and press the Enter key. where site is the site name of the OPAC (alphanumeric) frame is the frame number of the OPAC (0–511) is the number of the LCM unit of the OPAC (0 or 1)
Page 229 Recovery Procedures 6-9 Recovering an out-of-service OPAC (continued) CAUTION Failure to allow enough time can cause false alarm indication. Allow 3 to 5 min for the system to clear the alarm before you proceed to the next step. To determine if the OPAC has emergency stand-alone (ESA), type >QUERYPM and press the Enter key.
Page 230 6-10 Recovery Procedures Recovering an out-of-service OPAC (continued) To check the OPAC exit time, type: >POS RLCM_XPMESAEXIT and press the Enter key. Example of a MAP response: PARMNAME PARMVAL ––––––––––––––– RLCM_XPMESAEXIT If PARMVAL is set to zero step 20 greater than zero Allow the system to recover the OPAC.
Page 231 Recovery Procedures 6-11 Recovering an out-of-service OPAC (continued) To post the host XMS-based peripheral module (XPM) links and check link conditions for slips and framing errors, type: >POST pm pm_no link_no and press the Enter key. where is a line trunk controller (LGC), line group controller (LTC) or remote cluster controller (RCC) pm_no is the number of the PM (0 to 255)
Page 232 6-12 Recovery Procedures Recovering an out-of-service OPAC (continued) To busy both LCM units of the OPAC, type: >BSY PM and press the Enter key. Go to step 27. To test both LCM units of the OPAC, type: >TST PM and press the Enter key. If test passes step 27...
Page 233 Recovery Procedures 6-13 Recovering an out-of-service OPAC (continued) To attempt to reload the OPAC, type >LOADPM PM CC and press the Enter key. If load is successful step 27 not successful step 29 Contact your maintenance support group for additional instructions in how to clear this fault.
Page 234 6-14 Recovery Procedures Recovering an out-of-service OPAC (continued) To attempt to load the LCM unit, type: >LOADPM UNIT lcm_unit_no CC and press the Enter key. where lcm_unit_no is the LCM unit of the OPAC to load (0 or 1) If load is successful step 34 is not successful...
Page 235 Recovery Procedures 6-15 Recovering an out-of-service OPAC Recovering an out-of-service OPAC (end) (continued) The procedure is complete. If the MAP subsystem displays additional alarms, proceed to the correct alarm clearing procedure. DMS-100 Family OPAC Maintenance Manual XPM12 and up...
Page 237: Alarm Clearing Procedures
Alarm clearing procedures This chapter contains the alarm clearing procedures for the Outside Plant Access Cabinet (OPAC). The alarm indicates the procedure required to clear the trouble. Maintenance personnel use these procedures to clear alarms as the alarms appear at the MAP display. Procedures in this chapter correspond with the alarms.
Page 238: Opac Critical
Alarm clearing procedures OPAC critical Alarm display Trks Appl nLCM Application Use this procedure to recover service in an OPAC when both units of the line concentrating module (LCM) are out of service. This condition always produces a central side busy (CBsy) alarm. In the MAP display, the OPAC alarm appears under the PM header of the alarm banner.
Page 239 Alarm clearing procedures 7-3 OPAC critical (continued) Summary of an OPAC critical alarm This flowchart summarizes the procedure. At PM level of Use the instructions that follow MAP terminal, this flowchart to perform the display CBsy procedure. LCMs Busy, test, and CBsy Post host PM RTS links with...
Page 240 7-4 Alarm clearing procedures OPAC critical (continued) Summary of an OPAC critical alarm (continued) Power down Power up LCM Replace card Load LCM unit LCM unit unit Test passed? Load passed? Test LCM unit Contact maintenance Card list? support group Contact maintenance support group...
Page 241 Alarm clearing procedures 7-5 OPAC critical (continued) Summary of an OPAC critical alarm (continued) End of RTS LCM unit RTS passed? procedure Contact maintenance support group ESA timer set Are links Check links to Post the LCM for manual stable? OPAC recovery? Leave OPAC in...
Page 242 7-6 Alarm clearing procedures OPAC critical (continued) Clearing an OPAC critical alarm At the MAP terminal Make sure that the OPAC is receiving power. To silence an audible alarm, type >MAPCI;MTC;SIL;PM and press the Enter key. To identify the OPAC that has faults, type >DISP STATE CBSY LCM and press the Enter key.
Page 243 Alarm clearing procedures 7-7 OPAC critical (continued) To display the peripheral side (P-side) links, type >TRNSL P and press the Enter key. Example of a MAP response: Link 2: LCM REM1 00 0 2; Cap MS; Status: SysB ;MsgCond: CLS Link 6: LCM REM1 00 0 1;...
Page 244 7-8 Alarm clearing procedures OPAC critical (continued) To post the OPAC with the alarm condition identified in step 4, type >POST LCM site frame lcm and press the Enter key. where site is the site name of the OPAC (alphanumeric) frame is the frame number of the OPAC (0 to 511) is the number of the LCM unit of the OPAC...
Page 245 Alarm clearing procedures 7-9 OPAC critical (continued) CAUTION If you do not allow the time required for the system to clear the alarm, a false alarm indication occurs. Allow 3 to 5 min for the system to clear the alarm before you proceed to the next step.
Page 246 7-10 Alarm clearing procedures OPAC critical (continued) Determine if the OPAC has the ESA timer set for manual recovery from ESA. To access table OFCENG, type >TABLE OFCENG and press the Enter key. To check the OPAC exit time, type >POS RLCM_XPMESAEXIT and press the Enter key.
Page 247 Alarm clearing procedures 7-11 OPAC critical (continued) Post the host XMS-based peripheral module (XPM) links and check link conditions for slips and frame errors. To perform these actions, type >POST pm pm_no link_no and press the Enter key. where is an LGC, LTC, or RCC pm_no is the number of the PM (0 to 127) link_no...
Page 248 7-12 Alarm clearing procedures OPAC critical (continued) To busy both LCM units of the OPAC, type >BSY PM and press the Enter key. Go to step 25. To test both LCM units of the OPAC, type >TST PM and press the Enter key. If test passes step 25...
Page 249 Alarm clearing procedures 7-13 OPAC critical (continued) To attempt to reload the OPAC, type >LOADPM PM CC and press the Enter key. If load is successful step 25 is not successful step 27 For additional information on how to clear this fault, contact the maintenance support group.
Page 250 7-14 Alarm clearing procedures OPAC critical (continued) To load the LCM unit, type >LOADPM UNIT lcm_unit and press the Enter key. where lcm_unit is the LCM unit of the OPAC to be loaded (0 or 1) If the load is successful step 34 is not successful step 27...
Page 251 Alarm clearing procedures 7-15 OPAC OPAC critical critical (continued) (end) This procedure is complete If additional alarms appear, proceed to the correct procedure to clear the alarm. DMS-100 Family OPAC Maintenance Manual XPM12 and up...
Page 252: Lcm (Rg) Critical
7-16 7-16 Alarm clearing procedures 7-16 LCM (RG) critical Alarm display Trks Appl nLCM Indication The following text under the PM header at the MTC level of the MAP display indicates an alarm that involves an outside plant module (OPM): the LCM refers to a line concentrating module an n next to the LCM indicates the number of LCMs affected a *C* indicates that the alarm class is critical...
Page 253 Alarm clearing procedures 7-17 LCM (RG) critical (continued) Summary of LCM (RG) critical alarm Access PM level BSY the SysB This flowchart summarizes the at MAP and LCM unit procedure. silence alarm Use the instructions that follow this flowchart to perform the procedure.
Page 254 7-18 Alarm clearing procedures LCM (RG) critical (continued) Summary of LCM (RG) critical alarm (continued) Power up ringing This flowchart summarizes the generator procedure. Use the instructions that follow this flowchart to perform the BSY associated procedure. LCM unit TST the LCM unit RTS the LCM TST passes? unit...
Page 255 Alarm clearing procedures 7-19 LCM (RG) critical (continued) Summary of LCM (RG) critical alarm (continued) BSY the other LCM unit Replace defective RG RTS LCM unit TST LCM unit Align units to TST passes? preferred RG Contact next End of level of support procedure DMS-100 Family OPAC Maintenance Manual XPM12 and up...
Page 256 7-20 Alarm clearing procedures LCM (RG) critical (continued) Clearing an LCM (RG) critical alarm ATTENTION Enter this procedure from a PM system level alarm clearing procedure step that identified a PM alarm. The step must identify the PM alarm with an OPAC ringing generator fault. At the MAP terminal To silence the alarm, type >MAPCI;MTC;PM;SIL...
Page 257 Alarm clearing procedures 7-21 LCM (RG) critical (continued) To check for fault indicators, type >QUERYPM FLT and press the ENTER key. Example of a MAP display: UNIT 0 Inservice troubles Exist: Ringing Generator Failure:Ring Generator ANI/COIN Fault UNIT 1 Inservice Troubles Exist: Ringing Generator Failure:Ring Generator in Excess load If system indicates RG failre...
Page 258 7-22 Alarm clearing procedures LCM (RG) critical (continued) To test the ManB LCM unit, type >TST UNIT unit_no and press the ENTER key. where unit_no is the number of the ManB LCM unit (0 or 1) If the system generates a card list step 9 does not generate a card list step 18...
Page 259 Alarm clearing procedures 7-23 LCM (RG) critical (continued) To align RG activity to the new RG, type >SWRG UNIT unit_no and press the Enter key. where unit_no is the LCM unit (0 or 1) associated with the new RG Example of a MAP display: LCM REM1 14 1 Unit 1 SWRG Passed If the SWRG command passes, and RG activity must switch...
Page 260 7-24 Alarm clearing procedures LCM (RG) LCM (RG) critical critical (continued) (end) To align RG activity to the preferred RG, type >SWRG UNIT unit_no and press the Enter key. where unit_no is the LCM unit (0 or 1) associated with the new RG Example of a MAP display: LCM REM1 00 0 InSv Links OOS: Cside 0 Pside 0...
Page 261: Opac Talk Battery Alarm Critical
7-25 Alarm clearing procedures 7-25 7-25 OPAC talk battery alarm Critical Alarm display Trks Appl nLCM Indication The following text beneath the PM header at the MTC level of the MAP display indicates an international line concentrating module (ILCM) alarm: an n next to the ILCM indicates the number of ILCM modules affected a *C* indicates that the alarm class is critical Meaning...
Page 262 7-26 Alarm clearing procedures OPAC talk battery alarm Critical (continued) Summary of clearing a OPAC talk battery alarm Critical alarm Access PM level This flowchart summarizes the BSY ISTb LCM at MAP and procedure. unit silence alarm Use the instructions that follow this flowchart to perform the procedure.
Page 263 Alarm clearing procedures 7-27 OPAC talk battery alarm Critical (continued) Clearing a OPAC talk battery alarm Critical alarm At the MAP terminal To silence the alarm, type >MAPCI;MTC;SIL and press the Enter key. To access the PM level of the MAP display, type >PM and press the Enter key.
Page 264 7-28 Alarm clearing procedures OPAC talk battery alarm Critical (continued) To post the OPAC that lost talk battery, type >POST LCM site frame lcm and press the Enter key. site is the OPAC site name (alphanumeric) frame is the OPAC frame number (0 to 511) is the LCM number (0 to 1) Example of a MAP display: Trks...
Page 265 Alarm clearing procedures 7-29 OPAC talk battery alarm Critical (continued) Determine which fuse is blown. Note: Fuses 01 to 05 supply +5 V, fuses 06 to 10 supply +15 V and fuses 11 to 15 supply –48 V. If the blown fuse is any one of 01 to 05 Remove the blown fuse and proceed to step 9...
Page 266 7-30 Alarm clearing procedures OPAC talk battery alarm Critical (continued) DANGER Risk of fire To prevent risk of fire, replace the blown fuse with a fuse of the same type, rating (color code), and manufacturer. Insert the +15V fuse. Next, insert the –48V fuse. If the fuse blows again step 56...
Page 267 Alarm clearing procedures 7-31 OPAC talk battery alarm Critical (continued) At the OPAC cabinet Trip the circuit breaker CB2 or CB4 to remove the talk battery filter out of the circuit. This procedure prevents the cartridge fuse from blowing. If affected unit is Trip circuit breaker Unit 0 Unit 1...
Page 268 7-32 Alarm clearing procedures OPAC talk battery alarm Critical (continued) Verify if the MSP uses NTI repeaters. uses NTI repeaters step 22 does not use NTI repeaters step 32 Reset circuit breaker CB2 or CB4. Move the switch to the ON/OFF position and back to the ON position in quick succession.
Page 269 Alarm clearing procedures 7-33 OPAC talk battery alarm Critical (continued) To identify the C-side peripheral, type >TRNSL C and press the Enter key. Example of a MAP response: Host XPM type and number Link 0: LTC 0 0;Cap MS;Status:OK ;MsgCon:CLS Link 1: LTC 0 1;Cap...
Page 270 7-34 Alarm clearing procedures OPAC talk battery alarm Critical (continued) To access the CARRIER level of the MAP display, type >TRKS;CARRIER and press the Enter key. To post the host XPM P-side links, type >POST pm_type pm_no link_no and press the Enter key. where pm_type is the host peripheral (LGC, LTC or RCC2)
Page 271 Alarm clearing procedures 7-35 OPAC talk battery alarm Critical (continued) Remove the fuses and repeaters associated with CB2 and LCA 0 in the following order: remove –48V line drawer fuses, 11 through 15 remove fuse F01 of the MSP, associated only with CB2 unseat NT repeater cards 1 through 4.
Page 272 7-36 Alarm clearing procedures OPAC talk battery alarm Critical (continued) DANGER Risk of electrocution Some terminals in the MSP have electrical potential. Remove all jewelry before you perform this step. Connect the leads of the capacitor forming tool across the top and bottom terminals with wires attached to them, top and second from the bottom terminals, of the tripped circuit breaker.
Page 273 Alarm clearing procedures 7-37 OPAC talk battery alarm Critical (continued) Set the circuit breaker to ON. If the circuit breaker remains ON step 46 trips again step 56 Insert the five –48V line drawer fuses removed in step 32. Pause for 15 s before you insert each fuse.
Page 274 7-38 Alarm clearing procedures OPAC talk battery alarm Critical (continued) To busy the links offlined in step 30, type >BSY item_no and press the Enter key. where item_no is the item number under the n (0-4) column Note: Perform this step for each link offlined earlier. To access the PM level of the MAP and post the host peripheral, type >PM;POST pm_type pm_no and press the Enter key.
Page 275 Alarm clearing procedures 7-39 OPAC talk battery alarm OPAC talk battery alarm Critical Critical (continued) (end) To post the OPAC, type >POST LCM site frame lcm and press the Enter key. site is the OPAC site name (alphanumeric) frame is the OPAC cabinet frame number is the LCM number (0 to 1) To test the LCM unit, type >TST UNIT lcm_unit...
Page 276: Rlcm Major
7-40 7-40 Alarm clearing procedures 7-40 RLCM major Alarm display Trks Appl nLCM Indication The alarm code RLCM under the peripheral module (PM) subsystem header indicates a line concentrating module (LCM) alarm. The M under the LCM indicates a major alarm. The number (n) before RLCM indicates the number of OPACs with a major alarm.
Page 277 Alarm clearing procedures 7-41 RLCM major (continued) Summary of RLCM major alarm This flowchart summarizes the At PM level of procedure. MAP display, ISTb LCMs. Use the instructions in the procedure that follows this flowchart to perform the Post ISTbLCM. procedure.
Page 278 7-42 Alarm clearing procedures RLCM major (continued) Summary of RLCM major alarm (continued) Busy LCM unit Test LCM unit Return to Return LCM End of service Test passes? unit to service procedure passes? Load the LCM Loading Load unit error? successful? Replace card Card list?
Page 279 Alarm clearing procedures 7-43 RLCM major (continued) Clearing an RCLM major alarm At the MAP terminal If an alarm is audible, silence the alarm. To silence the alarm, type: >MAPCI;MTC;SIL and press the Enter key. To access the PM level of the MAP display, type: >PM and press the Enter key.
Page 280 7-44 Alarm clearing procedures RLCM major (continued) At the LCM Inspect the ringing generator to see if LED is ON. If the LED is ON step 7 is OFF step 16 To power up the ringing generator, move the power switch to the ON position. (The LED turns off.) The switches are identified as: RG 0 corresponds to LCM unit 0...
Page 281 Alarm clearing procedures 7-45 RLCM major (continued) To identify the P-side links that have faults, type: >TRNSL P and press the Enter key. Example of a MAP response: Link 2: LCM REM1 00 0 2; Cap MS; Status: OK ;MsgCond: OPN Link 6: LCM REM1 00 0 1;...
Page 282 7-46 Alarm clearing procedures RLCM major (continued) To post the LCM in the OPAC with the alarm condition, type: >POST LCM site frame lcm and press the Enter key. where site is the site name of the OPAC (alphanumeric) frame is the frame number of the OPAC (0 to 511) is the number of the LCM CAUTION...
Page 283 Alarm clearing procedures 7-47 RLCM major (continued) To attempt to load the LCM unit, type: >LOADPM UNIT lcm_unit CC and press the Enter key. where lcm_unit is the number of the LCM (0 or 1) you are loading If load is successful step 19 is not successful...
Page 284 7-48 Alarm clearing procedures RLCM RLCM major major (continued) (end) The procedure is complete. If other alarms appear at the MAP display, proceed to the appropriate alarm clearing procedure. 297-8211-550 Standard 05.01 August 1999...
Page 285: Opac (Rg) Major
7-49 Alarm clearing procedures 7-49 7-49 OPAC (RG) major Alarm display Trks Appl nLCM Indication The alarm code LCM indicates a line concentrating module (LCM) ringing generator (RG) alarm. The alarm code LCM appears under the PM subsystem header at the MTC level of the MAP display. The number (n) before LCM indicates the number of LCMs with this alarm.
Page 286 7-50 Alarm clearing procedures OPAC (RG) major (continued) Summary of Clearing an OPAC (RG) alarm Access PM level This flowchart summarizes the at MAP and procedure. silence alarm Use the instructions in the procedure that follows this flowchart to perform the Post SysB LCM procedure.
Page 287 Alarm clearing procedures 7-51 OPAC (RG) major (continued) Summary of clearing an OPAC (RG) alarm (continued) RTS the LCM Contact next level of passes maintenance End of procedure Replace ringing generator BSY the LCM TST passes TST the LCM Contact next level of maintenance DMS-100 Family OPAC Maintenance Manual XPM12 and up...
Page 288 7-52 Alarm clearing procedures OPAC (RG) major (continued) Clearing an OPAC (RG) alarm At your current location Enter this procedure from a peripheral module (PM) system level alarm clearing procedure step. The step must identify a PM alarm associated with an RLCM ringing generator fault.
Page 289 Alarm clearing procedures 7-53 OPAC (RG) major (continued) To post the ISTb LCM from step 3, type: >POST LCM ISTB and press the Enter key. Example of a MAP display : Trks Appl 1LCM SysB ManB OffL CBsy ISTb InSv 0 Quit 2 Post_ 3 ListSet...
Page 290 7-54 Alarm clearing procedures OPAC (RG) major (continued) To check for fault indicators, type: >QUERYPM FLT and press the Enter key. Example of a MAP display : Trks Appl 1LCM SysB ManB OffL CBsy ISTb InSv 0 Quit 2 Post_ 3 ListSet 4 SwRG REM1 14 1 ISTb Links_OOS: CSide 0 PSide 0...
Page 291 Alarm clearing procedures 7-55 OPAC (RG) major (continued) At the OPAC Inspect the Ringing Generator. Check if the LED is ON. If the LED is ON step 7 is OFF step 8 To power up the ringing generator, move the power switch to the ON position. (The LED goes OFF.) The switches are identified as: >RG 0 corresponds to LCM unit 0 (CB6 - HIE slot 1) >RG 1 corresponds to LCM unit 1 (CB8 - HIE slot 5)
Page 292 7-56 Alarm clearing procedures OPAC (RG) major (continued) To test the ManB LCM, type: >TST UNIT unit_no >TST PM and press the Enter key. where unit_no is the number of the ManB LCM unit. Example of a MAP response : LCM REM1 Unit 1 InSvce Test Initiated...
Page 293 Alarm clearing procedures 7-57 OPAC (RG) major (continued) To return the LCM to service, type >RTS UNIT unit_no and press the Enter key. where unit_no is the number of the ManB LCM unit. If RTS passes step 17 fails step 16 Check the card listing that appears in the following MAP display.
Page 294 7-58 Alarm clearing procedures OPAC (RG) OPAC (RG) major major (continued) (end) Go to the correct procedure in the Card Replacement Procedures for the next card on the card list. After you finish with the card replacement procedures, go to step 9. For additional help, contact the next level of maintenance.
Page 295: Ext Msp Major
7-59 Alarm clearing procedures 7-59 7-59 Ext MSP major Alarm display Trks Appl nFSP. Indication The alarm code FSP appears under the Ext subsystem header of the alarm banner at the maintenance (MTC) level of the MAP display. This alarm code indicates an Ext modular supervisory panel (MSP) alarm.
Page 296 7-60 Alarm clearing procedures Ext MSP major (continued) Summary of clearing an Ext MSP major alarm Check all This flowchart summarizes the CONVERTER procedure. FAIL LEDs Use the instructions in the section that follows this Is a Replace flowchart to perform the CONVERTER converter procedure.
Page 297 Alarm clearing procedures 7-61 Ext MSP major (continued) Clearing an Ext MSP major alarm At the OPAC Check the CONVERTER FAIL LED on each converter in the cabinet. a CONVERTER FAIL LED is lit step 51 the CONVERTER FAIL LEDs are step 2 lnot it Check the RG FAIL LED on both RGs.
Page 298 7-62 Alarm clearing procedures Ext MSP major (continued) DANGER Risk of fire Replace the fuse with a fuse of the same type, rating (color code) and manufacturer. This action provides continued protection against risk of fire. Remove the blown fuse. Insert the replacement fuse.
Page 299 Alarm clearing procedures 7-63 Ext MSP major (continued) Remove the blown fuse and the associated fuse. For example, if the blown fuse is 06, then remove fuse 11. Obtain a replacement fuse with the same voltage and amperage as the blown fuse.
Page 300 7-64 Alarm clearing procedures Ext MSP major (continued) Use the following table to identify the drawer associated with the blown fuse. The drawers are located in the shelf below the fuse panel. The RA and RB fuses supply ringing voltage to all five drawers in the shelf. Fuse number Drawer number 01, 06, 11...
Page 301 Alarm clearing procedures 7-65 Ext MSP major (continued) Insert the –48 V fuse first. Insert the +15 V fuse second. If the fuse blows (protrudes) again step 25 does not blow step 27 Obtain a replacement fuse with the same voltage and amperage as the blown fuse.
Page 302 7-66 Alarm clearing procedures Ext MSP major (continued) Check the drawer for loose or short-circuited wires. If the wires are loose or short-circuited step 84 lare not loose or short-circuited, and step 26 the fuse you handle is a ringing voltage fuse (RA or RB) are not loose or short-circuited, the step 84...
Page 303 Alarm clearing procedures 7-67 Ext MSP major (continued) Insert the replacement line card into the drawer. If you handle any one of fuses 01 to 05 step 34 handle any one of fuses 06 to 15 step 31 handle an RA or RB fuse step 34 Obtain a replacement fuse with the same voltage as the blown fuse.
Page 304 7-68 Alarm clearing procedures Ext MSP major (continued) Insert the replacement fuse. If the fuse blows (protrudes) again step 84 does not blow step 37 Reseat all the other line cards in the drawer. Push the drawer in and go to step 81. Use the following table to identify which circuit breaker is associated with the RG that has a lit FAIL LED.
Page 305 Alarm clearing procedures 7-69 Ext MSP major (continued) Locate the fuse associated with the cabinet and shelf number. If the fuse is blown (protruding) step 43 is not blown step 49 Remove the fuse holder with the blown fuse. DANGER Risk of fire Replace the fuse with a fuse of the same type, rating (color code), and manufacturer.
Page 306 7-70 Alarm clearing procedures Ext MSP major (continued) Check the FAIL LED on the RG you replaced. If the FAIL LED on the RG is lit step 80 is not lit step 81 Note the number of the shelf that contains the converter with the lit CONVERTER FAIL LED.
Page 307 Alarm clearing procedures 7-71 Ext MSP major (continued) Note the numbers of the shelf that contain the converter with the lit CONVERTER FAIL LED. Locate the fuse that powers the shelf. If the fuse is blown step 57 is not blown step 60 Remove the blown fuse.
Page 308 7-72 Alarm clearing procedures Ext MSP major (continued) Check the converter you just replaced. Check the associated circuit breaker. If the circuit breaker goes OFF, and the CONVERTER step 64 FAIL LED is lit remains ON, and the CONVERTER step 81 FAIL LED is not lit remains ON, and the CONVERTER step 63...
Page 309 Alarm clearing procedures 7-73 Ext MSP major (continued) To replace the NT6X51 card, use the correct procedure in Card Replacement Procedures . When you complete the procedure, return to this point. Set the circuit breaker to ON. If the circuit breaker goes OFF, and the CONVERTER step 76 FAIL LED is lit...
Page 310 7-74 Alarm clearing procedures Ext MSP major (continued) Set the circuit breaker to ON. If the circuit breaker goes OFF, and the CONVERTER step 78 FAIL LED is lit remains ON, and the CONVERTER step 81 FAIL LED is not lit remains ON, and the CONVERTER step 80 FAIL LED is lit...
Page 311 Alarm clearing procedures 7-75 Ext MSP Ext MSP major major (continued) (end) At the MAP terminal To access the Ext level of the MAP display to determine if an MSP alarm is present, type >MAPCI;MTC;EXT and press the Enter key. If an MSP alarm is present step 84...
Page 312: Rmm Major
7-76 7-76 Alarm clearing procedures 7-76 major Alarm display Trks APPL nSysB Indication The alarm code nSysB appears under the peripheral module (PM) subsystem header at the maintenance (MTC) level of the MAP terminal display. This code indicates an alarm for a remote maintenance module (RMM). The letter M indicates that the alarm class is major.
Page 313 Alarm clearing procedures 7-77 major (continued) Summary of RMM major alarm At PM level of This flowchart summarizes the MAP, display procedure. SysB RMMs Use the instructions that follow this flowchart to perform the procedure. Post SysB Busy RMM Test RMM Return to End of Return RMM...
Page 314 7-78 Alarm clearing procedures major (continued) Summary of RMM major alarm (continued) Load RMM Msg. Loadfile List filename in Msg. Loadfile Reload RMM not found in not found in your user directory? directory? directory Contact next Load failure? level of support Load passes Post OPAC and Identify...
Page 315 Alarm clearing procedures 7-79 major (continued) Clearing an RMM major alarm At the MAP terminal To silence the alarm, type >MAPCI;MTC;PM;SIL and press the Enter key. To identify the RMM that has faults, type >DISP STATE SYSB RMM and press the Enter key. Example of a MAP response: SysB RMM: 2...
Page 316 7-80 Alarm clearing procedures major (continued) To load the RMM, type >LOADPM and press the Enter key. the system responds loadfile step 7 not found in directory load passes step 31 load fails step 35 Determine the type of device used to store the PM load files. If the storage device is a tape step 8...
Page 317 Alarm clearing procedures 7-81 major (continued) To demount the tape drive, type >DEMOUNT T tape_no and press the Enter key. where tape_no is the number of the tape drive containing the PM load files Go to step 23. From office records, determine and note the number of the input/output controller (IOC) disk.
Page 318 7-82 Alarm clearing procedures major (continued) To list the SLM file names into your user directory, type >LV CM;LF file_name and press the Enter key. where file_name is the name of the volume containing the PM load files obtained in step 19.
Page 319 Alarm clearing procedures 7-83 major (continued) CAUTION If you do not allow the time required for the system to clear the alarm, a false alarm indication can occur. Allow 3 to 5 min for the system to clear the alarm before you proceed to the next step.
Page 320 7-84 Alarm clearing procedures major (continued) To return the link to service, type >RTS LINK link_no and press the Enter key. where link_no is the number of the link (0 or 1) tested in step 28 If RTS LINK link_no passes step 30 fails...
Page 321 Alarm clearing procedures 7-85 major major (continued) (end) To return the ManB RMM to service, type >RTS and press the Enter key. If RTS passed step 36 failed step 35 The card list identifies cards with possible faults. Replace the cards one at a time in the order that this procedure directs.
Page 322: Opac Minor
7-86 7-86 Alarm clearing procedures 7-86 OPAC minor Alarm display Trks Appl nLCM Indication The alarm code LCM under the peripheral module (PM) subsystem header indicates a line concentrating module (LCM) alarm. The absence of *C* or M under the LCM indicates a minor alarm. The number (n) before LCM indicates the number of OPACs with a minor alarm.
Page 323 Alarm clearing procedures 7-87 OPAC minor (continued) Summary of an OPAC minor alarm At PM level of This flowchart summarizes the MAP, display procedure. ISTb LCMs Use the instructions in the procedure that follows this Post ISTb LCM flowchart to perform the procedure.
Page 324 7-88 Alarm clearing procedures OPAC minor (continued) Summary of an OPAC minor alarm(continued) Busy and test LCM unit Return to End of Return LCM Test passes? service procedure unit to service passes? Clear PBsy Card list? Replace card alarm? Contact the Clear drawer next level of fault?
Page 325 Alarm clearing procedures 7-89 OPAC minor (continued) Summary of an OPAC minor alarm(continued) Post host peripheral Display P-side links that have defects Busy and test links that have defects Return to Other links Return link to Test passes? service SysB? service passes? Post LCM unit...
Page 326 7-90 Alarm clearing procedures OPAC minor (continued) Clearing an OPAC minor alarm At the MAP terminal If you continue to hear the alarm, silence the alarm. To silence the alarm, type: >MAPCI;MTC;SIL and press the Enter key. To access the PM level of the MAP display, type: >PM and press the Enter key.
Page 327 Alarm clearing procedures 7-91 OPAC minor (continued) At the LCM Visually inspect the ringing generator to see if the light-emitting diode (LED) light is ON. If the LED light is ON step 7 is OFF step 25 To power up the ringing generator, move the power switch to the ON position. The LED light must go off.
Page 328 7-92 Alarm clearing procedures OPAC minor (continued) To identify the peripheral-side (P-side) links that have defects, type: >TRNSL P and press the Enter key. Example of a MAP response: Link 2: LCM REM1 00 0 2; Cap MS; Status: OK ;MsgCond: OPN Link 6: LCM REM1 00 0...
Page 329 Alarm clearing procedures 7-93 OPAC minor (continued) To display P-side links, type: >TRNSL P and press the Enter key. Example of a MAP response: Link 0: RMM 0 0;Cap MS;Status:PBsy ,P;MsgCond:CLS Link 1: RMM 0 1;Cap MS;Status:PBsy ,P;MsgCond:CLS Link 2: ESA 0 0;Cap M ;Status:OK ,P;MsgCond:OPN Link...
Page 330 7-94 Alarm clearing procedures OPAC minor (continued) To return to service the RMM or ESA processor, type: >RTS and press the Enter key. If RTS passes step 31 fails step 29 To post the LCM in the OPAC with the alarm condition, type: >POST LCM site frame lcm and press the Enter key.
Page 331 Alarm clearing procedures 7-95 OPAC minor (continued) Example of a MAP response: REM1 14 0 ISTb Links OOS: Cside 0 Pside Unit0: InSv /RG: 0 Unit1: InSv /RG: 0 RG: Pref 0 InSv Drwr: Stby 1 InSv If the system indicates that the problem is a step 22 drawer that has defects...
Page 332 7-96 Alarm clearing procedures OPAC minor (continued) Repeat this step for the other line subgroup associated with the drawer that has defects. If test passes step 24 fails, and the system produces a step 28 card list fails, but the system does not step 29 produce a card list To return to service the two line subgroups, type:...
Page 333 Alarm clearing procedures 7-97 OPAC minor (continued) To test the busied unit, type: >TST UNIT lcm_unit and press the Enter key. where lcm_unit is the LCM unit to test (0 or 1) If test passes step 27 fails, and the system produces a step 28 card list fails, and the system does not...
Page 334 7-98 Alarm clearing procedures OPAC OPAC minor minor (continued) (end) Notify operating company personnel that you are changing the cards. After you replace the card, return to the correct step in this procedure. If you clear a PBsy alarm step 18 drawer problems step 23 other alarms...
Page 335: Rmm Minor
7-99 Alarm clearing procedures 7-99 7-99 minor Alarm display Trks APPL nCBsy Indication The alarm code nCBsy appears under the PM subsystem header at the MTC level of the MAP terminal display. This code indicates a minor alarm associated with an RMM. The number (n) before CBsy indicates the number of PMs with this alarm.
Page 336 7-100 Alarm clearing procedures minor (continued) Summary of RMM minor alarm At PM level of This flowchart summarizes the MAP, display procedure. ISTb RMMs Use the instructions that follow this flowchart to perform the Post RMM procedure Test RMM End of Test passed? procedure Display P-side...
Page 337 Alarm clearing procedures 7-101 minor (continued) Clearing an RMM minor alarm At the MAP terminal: To silence the alarm, type >MAPCI;MTC;PM;SIL and press the Enter key. To identify the RMM that has faults, type >DISP STATE ISTB RMM and press the Enter key. Example of a MAP terminal response: ISTb RMM: 2...
Page 338 7-102 Alarm clearing procedures minor (continued) To identify the LCM in the OPAC with links in a SysB condition, type > TRNSL C and press the Enter key. Example of a MAP response: LINK 0: LCM RLCM 00 0 0;CAP MS;STATUS:SysB,;MSGCOND:CLS LINK 1: LCM RLCM 00 0 1;CAP MS;STATUS:...
Page 339 Alarm clearing procedures 7-103 minor (continued) To test the ManB link, type >TST LINK link_no and press the Enter key. where link_no is the number of the link (0 or 1) manually busied in step 8 If test passes step 10 fails step 16 To return the link to service, type...
Page 340 7-104 Alarm clearing procedures minor minor (continued) (end) To test the RMM, type >TST and press the Enter key. If test passes step 17 fails, and the system generates a step 14 card list fails, and the system did not step 16 generate a card list The card list identifies cards with possible faults.
Page 341 7-105 Alarm clearing procedures 7-105 7-105 PMPES critical, major, minor Alarm display Trks Appl nPES Indication The alarm code power and environmental system (PES) indicates a PES alarm. The PES appears under the peripheral module (PM) subsystem header of the alarm banner at the maintenance (MTC) level of the MAP display.
Page 342: Pmpes Critical, Major, Minor
7-106 Alarm clearing procedures PMPES critical, major, minor (continued) For example, you can enter POST GREEN at the PES level of the MAP terminal. When you enter the POST command, a display like the following, appears on the MAP display: Example of a MAP response: OPMPES 2 Cond:...
Page 343 Alarm clearing procedures 7-107 PMPES critical, major, minor (continued) The meaning of each maintenance state follows. Maintenance Meaning states One or more of the following faults exists in the OPAC: ac power failure battery string failed system, testing door open excessive current draw failure of the modular supervisory panel (MSP) rectifier failure...
Page 344 7-108 Alarm clearing procedures PMPES critical, major, minor (continued) This information cannot appear under each header. The following table lists the information and the meaning: Information Meaning Condition of the ac power supply is the following: Common AC . ac power present F ac power absent (failed).
Page 345 Alarm clearing procedures 7-109 PMPES critical, major, minor (continued) Information Meaning Position of doors on the OPAC is the following: Door FRNT position of the front or rear door is: — . door closed — 0 door open SIDE position of the side door. SIDE alarms are not present in OPAC.
Page 346 7-110 Alarm clearing procedures PMPES critical, major, minor (continued) Information Meaning State of the battery charger controller fuses is the BCCFUSES following: . fuses not faulty F faulty fuse State of the battery charger controller driver card is the BCCDVR following: .
Page 347 Alarm clearing procedures 7-111 PMPES critical, major, minor (continued) Result The PES alarm does not directly affect subscriber service. Common procedures Does not apply Action This procedure contains a flowchart and a list of steps. Use the flowchart to review the procedure. Follow the steps to perform the procedure. DMS-100 Family OPAC Maintenance Manual XPM12 and up...
Page 348 7-112 Alarm clearing procedures PMPES critical, major, minor (continued) Summary of clearing a PMPES alarm This flowchart summarizes the Go to PES level procedure. of MAP display. Use the instructions that follow this flowchart to perform the procedure. Post the most criticial alarm condition.
Page 349 Alarm clearing procedures 7-113 PMPES critical, major, minor (continued) Summary of clearing a PMPES alarm (continued) End of Return the scan Alarm clears? Scan card test procedure. card to service. passes? Contact the Replace the maintenance scan card. support group. DMS-100 Family OPAC Maintenance Manual XPM12 and up...
Page 350 7-114 Alarm clearing procedures PMPES critical, major, minor (continued) Clearing PMPES critical, major, minor alarms At the MAP terminal To silence the alarm if the alarm is audible, type >MAPCI;MTC;SIL and press the Enter key. To enter the PES MAP terminal level, type >PM;PES and press the Enter key.
Page 351 Alarm clearing procedures 7-115 PMPES critical, major, minor (continued) To post the most critical alarm condition, type >POST condition and press the Enter key. Where condition is the condition (red, amber, green or OFFL) A display like the following display appears on the MAP display. Example of a MAP display: Trks Appl...
Page 352 7-116 Alarm clearing procedures PMPES critical, major, minor (continued) Select one of the alarms from step 6 If the selection is AC (common) step 8 is Audit step 5 is BCC (0/1) step 18 is BCCDVR step 13 is BCCFUSES step 8 is CL0/CL1 step 8...
Page 353 Alarm clearing procedures 7-117 PMPES critical, major, minor (continued) To busy the scan card, type >BSY PESALRM and press the Enter key. The letter M appears under PESALRM on the MAP display. Example of a MAP display: Trks Appl 1PES OPMPES SysB ManB...
Page 354 7-118 Alarm clearing procedures PMPES critical, major, minor (continued) To test the new scan card, type >TST PESALRM and press the Enter key. If test fails step 22 passes step 12 To return the scan card to service, type >RTS PESALRM and press the Enter key.
Page 355 Alarm clearing procedures 7-119 PMPES critical, major, minor (continued) To busy the driver card, type >BSY BCCDVR and press the Enter key. The letter M appears under BCCDVR on the MAP display. Example of a MAP display: Trks Appl 1PES OPMPES SysB ManB...
Page 356 7-120 Alarm clearing procedures PMPES critical, major, minor (continued) Replace the BCCDVR card (NT802). Use the Card Replacement Procedures to replace the card. Notify outside operating company personnel. Replace the card and go to step To test the BCCDVR card, type >TST BCCDVR and press the Enter key.
Page 357 Alarm clearing procedures 7-121 PMPES PMPES critical, major, minor critical, major, minor (continued) (end) To place the battery on the load bus, type >LOADB n and press the Enter key. where is the battery string pair number (0, 1, or 2) If the system response is not OK step 22...
Page 358: Esa Critical, Minor
7-122 7-122 Alarm clearing procedures 7-122 critical, minor Alarm display Trks Appl nESA Indication The alarm code ESA under the PM subsystem header indicates an emergency stand-alone (ESA) alarm. The *C* indicates a critical ESA alarm. The absence of the*C* under the ESA indicates a minor ESA alarm. The number (n) before ESA indicates the number of ESA processors with the alarm condition.
Page 359 Alarm clearing procedures 7-123 critical, minor (continued) Summary of ESA critical, minor alarm This flowchart summarizes the procedure. Use the instructions that follow this flowchart to perform the procedure. At PM level of MAP display, display CBsy Post C-side Display P-side Busy and test Is ESA links that have...
Page 360 7-124 Alarm clearing procedures critical, minor (continued) Summary of ESA critical, minor alarm(continued) This flowchart summarizes the procedure. Use the instructions that follow this flowchart to perform the procedure. Return to Return link to Do other links Test passes? service service have faults? passes?
Page 361 Alarm clearing procedures 7-125 critical, minor (continued) Clearing an ESA critical, minor alarm At the MAP terminal To silence an audible alarm, type >MAPCI;MTC;SIL and press the Enter key. To access the PM level of MAP display, type >PM and press the Enter key. To identify the central-side busy (CBsy) ESA processor, type >DISP STATE CBSY ESA and press the Enter key.
Page 362 7-126 Alarm clearing procedures critical, minor (continued) To identify and post the LCM in the OPAC associated with the link that has defects, type >POST LCM site frame lcm and press the Enter key. where site is the site name of the OPAC (alphanumeric) frame is the frame number of the OPAC (0 to 511) lcm is the number of the LCM...
Page 363 Alarm clearing procedures 7-127 critical, minor (continued) To identify the SysB ESA processor, type >DISP STATE SYSB ESA and press the Enter key. If ESA is SysB step 12 is not SysB step 11 To identify the ESA processor with the alarm condition, type >DISP STATE ISTB ESA and press the Enter key.
Page 364 7-128 Alarm clearing procedures critical, minor (continued) To test the ESA processor, type >TST and press the Enter key. If test passes step 15 fails because of loading error step 16 fails, and the system produces card step 17 list fails, but the system does not step 19 produce card list...
Page 365 Alarm clearing procedures 7-129 critical, minor critical, minor (continued) (end) The card list identifies the cards that can have defects. Replace the cards one at a time in the order listed as directed below: If all cards on the list are replaced step 19 are not replaced...
Page 367: Opac Card Replacement Procedures
OPAC card replacement procedures This chapter contains the card replacement procedures for the Outside Plant Access Cabinet (OPAC). These procedures are used by maintenance personnel to remove and replace hardware modules. Except when used as part of verification or acceptance procedures, these procedures are used only when referred to by another maintenance procedure, such as the Alarm Clearing Procedures.
Page 368: Nt0X10 Rmm
Card replacement procedures NT0X10 Application Use this procedure to replace an NT0X10 in a remote maintenance module (RMM). Suffix Name NT0X10 Miscellaneous scan card Common procedures The procedure “Replacing a card” is referenced in this procedure. Action The following flowchart is only a summary of the procedure. To replace the card, use the instructions in the step-action procedure that follows the flowchart.
Page 369 Card replacement procedures 8-3 NT0X10 (continued) Summary of card replacement procedure for NT0X10 card in an RMM This flowchart summarizes the procedure. Use the instructions in the procedure that follows this flowchart to perform the procedure. At TTP level of the MAP screen post the RMM Ensure the correct...
Page 370 8-4 Card replacement procedures NT0X10 (continued) Replacing an NT0X10 in an RMM At the MAP CAUTION Loss of service This procedure includes directions to manually busy one or more peripheral module (PM) units. Since manually busying a PM unit can cause service degradation, perform this procedure only if necessary to restore out of service components.
Page 371 Card replacement procedures 8-5 NT0X10 NT0X10 (continued) (end) Replace the NT0X10 card using the procedure “Replacing a card.” When you have completed the procedure, return here. If you were directed to this procedure from the Alarm Clearing Procedures , return now to the alarm clearing procedure that directed you here. Otherwise, continue with step 7 Send any faulty cards for repair according to local procedure.
Page 372: Nt2X06 Rmm
Card replacement procedures NT2X06 Application Use this procedure to replace an NT2X06 in a remote maintenance module (RMM). Suffix Name NT2X06 Power converter common features Common procedures The procedure “Replacing a card” is referenced in this procedure. Action The following flowchart is only a summary of the procedure. To replace the card, use the instructions in the step-action procedure that follows the flowchart.
Page 373 Card replacement procedures 8-7 NT2X06 (continued) Summary of card replacement procedure for an NT2X06 in an RMM This flowchart summarizes the procedure. Use the instructions in the procedure that follows this Access PM level of flowchart to perform the the MAP display procedure.
Page 374 8-8 Card replacement procedures NT2X06 (continued) Replacing an NT2X06 in an RMM At the MAP terminal Obtain a replacement card. Ensure that the replacement card has the same product equipment code (PEC), including suffix, as the card to be removed. If you were directed to this procedure from the Alarm Clearing Procedures , go to step 6.
Page 375 Card replacement procedures 8-9 NT2X06 (continued) At the RMM WARNING Static electricity damage Wear a wrist strap connected to the wrist strap grounding point at the top of each equipment rack, (Bay 0, 1, 2, and 3), while handling circuit cards. This protects the cards against damage caused by static electricity.
Page 376 8-10 Card replacement procedures NT2X06 (continued) At the MAP terminal Go to the PM level and post the RMM, if not already posted, and load the RMM by typing >PM;POST rmm_no;LOADPM and pressing the Enter key where rmm_no is the number of the RMM shelf where the card is to be replaced message is loadfile not step 12 found in directory...
Page 377 Card replacement procedures 8-11 NT2X06 (continued) List the contents of the tape in your user directory by typing >LIST T tape_no and pressing the Enter key. where tape_no is the number of the tape containing the PM load files Demount the tape drive by typing >DEMOUNT T tape_no and pressing the Enter key.
Page 378 8-12 Card replacement procedures NT2X06 (continued) List the SLM file names into your user directory by typing >LV CM;LF file_name and pressing the Enter key. where file_name is the name of the SLM disk volume containing the PM load files obtained in step 24. Leave the disk utility by typing >QUIT and pressing the Enter key.
Page 379 Card replacement procedures 8-13 NT2X06 NT2X06 (continued) (end) Obtain further assistance in replacing this card by contacting the personnel responsible for higher level of support. You have completed this procedure. DMS-100 Family OPAC Maintenance Manual XPM12 and up...
Page 380: Nt2X09 Rmm
8-14 8-14 Card replacement procedures 8-14 NT2X09 Application Use this procedure to replace an NT2X09 in a remote maintenance module (RMM). Suffix Name NT2X09 Multioutput power converter Common procedures The procedure Replacing a card is referenced in this procedure. Action The following flowchart is only a summary of the procedure.
Page 381 Card replacement procedures 8-15 NT2X09 (continued) Summary of card replacement procedure for an NT2X09 in an RMM This flowchart summarizes the procedure. Use the instructions in the procedure that follows this flowchart to perform the Access the PM level procedure. of the MAP display Post the RMM Replace card with...
Page 382 8-16 Card replacement procedures NT2X09 (continued) Replacing an NT2X09 in an RMM At your Current Location Obtain a replacement card. Ensure the replacement card has the same product equipment code (PEC), including suffix, as the card to be removed. If you were directed to this procedure from the Alarm Clearing Procedures , go to step 6.
Page 383 Card replacement procedures 8-17 NT2X09 (continued) Power down the unit by setting the ON/OFF switch on the power converter faceplate to the OFF position. Both the converter FAIL LED and FRAME FAIL lamp on the MSP will be ON. Replace the NT2X09 card using the procedure Replacing a card. When you have completed the procedure, return here.
Page 384 8-18 Card replacement procedures NT2X09 (continued) Determine the type of device where the RMM load files are located. If load files are located on tape step13 IOC disk step19 SLM disk step24 Locate the tape that contains the PM load files. Mount the tape on a magnetic tape drive.
Page 385 Card replacement procedures 8-19 NT2X09 (continued) List the IOC file names into your user directory by typing >LISTVOL volume_name and pressing the Enter key. where volume_name is the name of the volume that contains the PM load files obtained in step 19. Leave the disk utility by typing >QUIT and pressing the Enter key.
Page 386 8-20 Card replacement procedures NT2X09 NT2X09 (continued) (end) Return the RMM to service by typing >RTS and pressing the Enter key. If RTS passes step 33 fails step 32 Send any faulty cards for repair according to local procedure. Record the following items in office records: date the card was replaced serial number of the card symptoms that prompted replacement of the card...
Page 387: Nt2X10 Rmm
8-21 Card replacement procedures 8-21 8-21 NT2X10 Application Use this procedure to replace an NT2X10 in a remote maintenance module (RMM). Suffix Name NT2X10 Line test unit analog card NT2X10 Multiline test unit analog card Common procedures The procedure “Replacing a card” is referenced in this procedure. Action The following flowchart is a summary of the procedure.
Page 388 8-22 Card replacement procedures NT2X10 (continued) Summary of card replacement procedure for an NT2X10 card in an RMM This flowchart summarizes the procedure. Use the instructions in the procedure that follows this At TTP level, post flowchart to perform the the RMM procedure.
Page 389 Card replacement procedures 8-23 NT2X10 (continued) Replacing an NT2X10 in an RMM At the MAP terminal Obtain a replacement card. Ensure the replacement card has the same product equipment code (PEC), including suffix, as the card to be removed. Access the trunk test position (TTP) level of the MAP display and post the trunk circuits on the card to be replaced by typing >MAPCI;MTC;TRKS;TTP;POST P RMM rmm_no ckt_no to ckt_no and pressing the Enter key.
Page 390 8-24 Card replacement procedures NT2X10 (continued) At the RMM WARNING Static electricity damage Wear a wrist strap connected to the wrist strap grounding point at the top of each equipment rack, (Bay 0, 1, 2, and 3), while handling circuit cards. This protects the cards against damage caused by static electricity.
Page 391 Card replacement procedures 8-25 NT2X10 NT2X10 (continued) (end) Return to service the circuit tested by typing >RTS and pressing the Enter key. If RTS passed step 9 failed step 14 Place the untested circuit in the control position by typing >NEXT 1 and pressing the Enter key.
Page 392: Nt2X11 Rmm
8-26 8-26 Card replacement procedures 8-26 NT2X11 Application Use this procedure to replace an NT2X11 in a remote maintenance module (RMM). Suffix Name NT2X11 Line test unit digital card NT2X11 Multiline test unit digital card Common procedures The procedure “Replacing a card” is referenced in this procedure. Action The following flowchart is a summary of the procedure.
Page 393 Card replacement procedures 8-27 NT2X11 (continued) Summary of card replacement procedure for an NT2X11 in an RMM This flowchart summarizes the procedure. Use the instructions in the procedure that follows this flowchart to perform the At TTP level, post procedure. the RMM Busy the trunks associated with the...
Page 394 8-28 Card replacement procedures NT2X11 (continued) Replacing an NT2X11 in an RMM At your Current Location Obtain a replacement card. Ensure the replacement card has the same product equipment code (PEC), including suffix, as the card to be removed. At the MAP terminal Access the trunk test position (TTP) level of the MAP display and post the RMM that contains the card to be replaced by typing >MAPCI;MTC;TRKS;TTP;POST P RMM rmm_no...
Page 395 Card replacement procedures 8-29 NT2X11 (continued) At the RMM WARNING Static electricity damage Wear a wrist strap connected to the wrist strap grounding point at the top of each equipment rack, (Bay 0, 1, 2, and 3), while handling circuit cards. This protects the cards against damage caused by static electricity.
Page 396 8-30 Card replacement procedures NT2X11 NT2X11 (continued) (end) Return to service the circuit tested by typing >RTS and pressing the Enter key. If RTS passed step 9 failed step 14 Place the untested circuit in the control position by typing >NEXT 1 and pressing the Enter key.
Page 397: Nt2X48 Rmm
8-31 Card replacement procedures 8-31 8-31 NT2X48 Application Use this procedure to replace an NT2X48 in a remote maintenance module (RMM). Suffix Name NT2X48 Digitone receiver Common procedures The procedure “Replacing a card” is referenced in this procedure: Action The following flowchart is a summary of the procedure. To replace the card, use the instructions in the step-action procedure that follows the flowchart.
Page 398 8-32 Card replacement procedures NT2X48 (continued) Summary of card replacement procedure for NT2X48 card in an RMM This flowchart summarizes the procedure. Use the instructions in the procedure that follows this flowchart to perform the procedure. At TTP level, post the RMM Busy the trunks associated with the...
Page 399 Card replacement procedures 8-33 NT2X48 (continued) Replacing an NT2X48 in an RMM At the MAP terminal Obtain a replacement card. Ensure the replacement card has the same product equipment code (PEC), including suffix, as the card to be removed. Access the TTP level of the MAP display and post the RMM that contains the card to be replaced by typing MAPCI;MTC;TRKS;TTP;POST P RMM rmm_no ckt_no to ckt_no and pressing the Enter key.
Page 400 8-34 Card replacement procedures NT2X48 (continued) At the RMM WARNING Static electricity damage Wear a wrist strap connected to the wrist strap grounding point at the top of each equipment rack, (Bay 0, 1, 2, and 3), while handling circuit cards. This protects the cards against damage caused by static electricity.
Page 401 Card replacement procedures 8-35 NT2X48 NT2X48 (continued) (end) Place the untested circuit in the control position by typing >NEXT 1 and pressing the Enter key. Test the circuit by typing >TST If TST passed step12 failed step14 Note: Repeat steps 10 and 11 for circuits 2 and 3. Return the circuit to service and clear the trunk test position by typing >RTS;NEXT and pressing the Enter key.
Page 402: Nt2X57 Rmm
8-36 8-36 Card replacement procedures 8-36 NT2X57 Application Use this procedure to replace an NT2X57 in a remote maintenance module (RMM). Suffix Name NT2X57 Signal distribution card (type 1) Common procedures The procedure “Replacing a card” is referenced in this procedure. Action The following flowchart is a summary of the procedure.
Page 403 Card replacement procedures 8-37 NT2X57 (continued) Summary of card replacement procedure for NT2X57 card in an RMM This flowchart summarizes the procedure. Use the instructions in the procedure that follows this flowchart to perform the procedure. At TTP level, post the RMM At PM level, post and busy the RMM...
Page 404 8-38 Card replacement procedures NT2X57 (continued) Replacing an NT2X57 in an RMM At the MAP terminal Get a replacement card. Ensure the replacement card has the same product equipment code (PEC), including suffix, as the card to be removed. Access the trunk test position (TTP) level of the MAP display and post the RMM that contains the card to be replaced by typing MAPCI;MTC;TRKS;TTP;POST P RMM rmm_no ckt_no to ckt_no and pressing the Enter key.
Page 405 Card replacement procedures 8-39 NT2X57 NT2X57 (continued) (end) Get more assistance in replacing this card by contacting the personnel responsible for higher-level support. You have completed this procedure. DMS-100 Family OPAC Maintenance Manual XPM12 and up...
Page 406: Nt2X59 Rmm
8-40 8-40 Card replacement procedures 8-40 NT2X59 Application Use this procedure to replace an NT2X59 in a remote maintenance module (RMM). Suffix Name NT2X59 Group CODEC DMS-100/200 Common procedures The procedure “Replacing a card” is referenced in this procedure. Action The following flowchart is a summary of the procedure.
Page 407 Card replacement procedures 8-41 NT2X59 (continued) Summary of card replacement procedure for an NT2X59 card in an RMM This flowchart summarizes the procedure. Use the instructions in the procedure that follows this flowchart to perform the procedure. At PM level of the MAP display, post and busy the RMM Replace card with...
Page 408 8-42 Card replacement procedures NT2X59 (continued) Replacing an NT2X59 in an RMM At the MAP terminal Get a replacement card. Ensure the replacement card has the same product equipment code (PEC), including suffix, as the card to be removed. Go to the peripheral module (PM) level of the MAP display and post the RMM by typing >PM;POST RMM rmm_no and pressing the Enter key.
Page 409 Card replacement procedures 8-43 NT2X59 NT2X59 (continued) (end) At the MAP terminal Go to the PM level and post the RMM, if not already posted, and return the RMM to service by typing PM;POST RMM rmm_no;RTS and pressing the Enter key. where rmm_no is the number of the RMM shelf in which the card is to be replaced...
Page 410: Nt2X70 Hie
8-44 8-44 Card replacement procedures 8-44 NT2X70 Application Use this procedure to replace an NT2X70 in the host interface equipment (HIE) shelf. Suffix Name NT2X70 Power converter ( 5V/ 12V) Common procedures The procedure “Replacing a card” is referenced in this procedure. Action The following flowchart is a summary of the procedure.
Page 411 Card replacement procedures 8-45 NT2X70 (continued) Summary of card replacement procedure for an NT2X70 in an HIE This flowchart summarizes the procedure. Use the instructions in the procedure that follows this At PM level, post flowchart to perform the and busy the ESA procedure.
Page 412 8-46 Card replacement procedures NT2X70 (continued) Replacing an NT2X70 in an HIE At the MAP terminal Get a replacement card. Ensure the replacement card has the same product equipment code (PEC), including suffix, as the card to be removed. If you were directed to this procedure from the Alarm Clearing Procedures, go to step 5.
Page 413 Card replacement procedures 8-47 NT2X70 (continued) Replace the NT2X70 card using the procedure “Replacing a card.” When you have completed the procedure, return here. Power up the HIE. Ensure the converter (NT2X70) is inserted. A major audible alarm may sound. This alarm is silenced when power is restored to the converter. Set the POWER switch to the ON position.
Page 414 8-48 Card replacement procedures NT2X70 (continued) Determine the type of device where the PM load files are located. If load files are located on tape step 14 IOC disk step 21 SLM disk step 25 Locate the tape that contains the PM load files. Mount the tape on a magnetic tape drive.
Page 415 Card replacement procedures 8-49 NT2X70 (continued) List the IOC file names into your user directory by typing >LISTVOL volume_name ALL and pressing the Enter key. where volume_name is the name of the volume that contains the PM load files Leave the disk utility by typing >QUIT and pressing the Enter key.
Page 416 8-50 Card replacement procedures NT2X70 NT2X70 (continued) (end) Return the ESA processor to service by typing >RTS and pressing the Enter key. If RTS passed step 31 failed step 33 Send any faulty cards for repair according to local procedure. Record the following items in office records: date the card was replaced serial number of the card...
Page 417: Nt2X90 Rmm
8-51 Card replacement procedures 8-51 8-51 NT2X90 Application Use this procedure to replace an the following card in a remote maintenance module (RMM). Suffix Name NT2X90 Incoming/outgoing test trunk Common procedures The procedure “Replacing a card” is referenced in this procedure. Action The following flowchart is a summary of the procedure.
Page 418 8-52 Card replacement procedures NT2X90 (continued) Summary of card replacement procedure for an NT2X90 in an RMM This flowchart summarizes the procedure. Use the instructions in the At TTP level, post procedure that follows this the RMM flowchart to perform the procedure.
Page 419 Card replacement procedures 8-53 NT2X90 (continued) Replacing an NT2X90 in an RMM At your Current Location Obtain a replacement card. Ensure the replacement card has the same product equipment code (PEC), including suffix, as the card to be removed. At the MAP terminal Access the trunk test position (TTP) level of the MAP display and post the RMM that contains the card to be replaced by typing >MAPCI;MTC;TRKS;TTP;POST P RMM rmm_no ckt_no to ckt_no...
Page 420 8-54 Card replacement procedures NT2X90 (continued) At the RMM WARNING Static electricity damage Wear a wrist strap connected to the wrist strap grounding point at the top of each equipment rack, (Bay 0, 1, 2, and 3), while handling circuit cards. This protects the cards against damage caused by static electricity.
Page 421 Card replacement procedures 8-55 NT2X90 NT2X90 (continued) (end) Return to service the tested circuit by typing >RTS and pressing the Enter key. If RTS passed step 9 failed step14 Place the untested circuit in the control position by typing >NEXT 1 and pressing the Enter key.
Page 422: Nt3X09 Rmm
8-56 8-56 Card replacement procedures 8-56 NT3X09 Application Use this procedure to replace the following card in an RMM.. Suffix Name NT3X09 Remote metallic test access card (4x8) NT3X09 8x8 metallic test access card Common procedures The procedure “Replacing a card” is referenced in this procedure. Action The following flowchart is only a summary of the procedure.
Page 423 Card replacement procedures 8-57 NT3X09 (continued) Summary of card replacement procedure for NT3X09 card RMM This flowchart summarizes the At TTP level, post procedure. the RMM Use the instructions in the procedure that follows this flowchart to perform the Is the RMM procedure.
Page 424 8-58 Card replacement procedures NT3X09 (continued) Replacing an NT3X09 in an RMM At the MAP Obtain a replacement card. Ensure the replacement card has the same product equipment code (PEC), including suffix, as the card to be removed. At your MAP terminal Access the trunk test position (TTP) level of the MAP display and post the RMM that contains the card to be replaced by typing >MAPCI;MTC;TRKS;TTP;POST P RMM rmm_no...
Page 425 Card replacement procedures 8-59 NT3X09 (continued) Go to the peripheral module (PM) level of the MAP display and post the RMM by typing >PM;POST RMM rmm_no and pressing the Enter key. where rmm_no is the number of the RMM shelf where the card is to be replaced Example of a MAP response: SysB ManB...
Page 426 8-60 Card replacement procedures NT3X09 (continued) At the MAP terminal Go to the PM level and post the RMM, if not already posted, and return the RMM to service by typing >PM;POST RMM rmm_no;RTS and pressing the Enter key. where rmm_no is the number of the RMM shelf where the card is to be replaced If RTS...
Page 427 Card replacement procedures 8-61 NT3X09 NT3X09 (continued) (end) Obtain further assistance in replacing this card by contacting the personnel responsible for higher level of support. You have completed this procedure. DMS-100 Family OPAC Maintenance Manual XPM12 and up...
Page 428: Nt6X17 Lcm
8-62 8-62 Card replacement procedures 8-62 NT6X17 Application Use this procedure to replace the following card in a line concentrating module (LCM). Suffixes Name NT6X17 Type A line card NT6X17 World line card Common procedures The procedure “Replacing a line card” is referenced in this procedure. Action The following flowchart is only a summary of the procedure.
Page 429 Card replacement procedures 8-63 NT6X17 (continued) Summary of card replacement procedure for an NT6X17 card in an LCM This flowchart summarizes the procedure. Use the instructions in the At LTP level, post procedure that follows this the line flowchart to perform the procedure.
Page 430 8-64 Card replacement procedures NT6X17 (continued) Replacing an NT6X17 in an LCM At the MAP terminal Obtain a replacement card. Ensure the replacement card has the same product equipment code (PEC), including suffix, as the card to be removed. Access the line test position (LTP) level of the MAP display and post the line associated with the card to be replaced by typing >MAPCI;MTC;LNS;LTP;POST L site rlcm lsg ckt and pressing the Enter key.
Page 431 Card replacement procedures 8-65 NT6X17 NT6X17 (continued) (end) At the MAP terminal Test the line card just replaced by typing >DIAG and pressing the Enter key. If the DIAG passed step 7 failed step 10 Return the line card to service by typing >RTS and pressing the Enter key.
Page 432: Nt6X18 Lcm
8-66 8-66 Card replacement procedures 8-66 NT6X18 Application Use this procedure to replace the following card in a line concentrating module (LCM). Suffixes Name NT6X18 AA, AB Line card type B (Coin/Ground Start) NT6X18 World Line Card Type B Common procedures The procedure “Replacing a line card”...
Page 433 Card replacement procedures 8-67 NT6X18 (continued) Summary of card replacement procedure for an NT6X18 in an LCM This flowchart summarizes the procedure. Use the instructions in the At LTP level, post procedure that follows this the line flowchart to perform the procedure.
Page 434 8-68 Card replacement procedures NT6X18 (continued) Replacing an NT6X18 in an LCM At the MAP Obtain a replacement card. Ensure the replacement card has the same product equipment code (PEC), including suffix, as the card that is to be removed. At the MAP terminal Access the line test position (LTP) level of the MAP display and post the line associated with the card to be replaced by typing...
Page 435 Card replacement procedures 8-69 NT6X18 (continued) At the MAP terminal Test the line card just replaced by typing >DIAG and pressing the Enter key. If the DIAG passed step 7 failed step 10 ATTENTION There is a new diagnostics test for NT6X18AA/AB cards. This NT6X18 card may be good.
Page 436 8-70 Card replacement procedures NT6X18 NT6X18 (continued) (end) You have successfully completed this procedure. 297-8211-550 Standard 05.01 August 1999...
Page 437: Nt6X19 Lcm
8-71 Card replacement procedures 8-71 8-71 NT6X19 Application Use this procedure to replace the following card in a line concentrating module (LCM). Suffixes Name NT6X19 Message waiting line card Common procedures The procedure “Replacing a line card” is referenced in this procedure. Action The following flowchart is only a summary of the procedure.
Page 438 8-72 Card replacement procedures NT6X19 (continued) Summary of card replacement procedure for NT6X19 card in an LCM This flowchart summarizes the procedure. Use the instructions in the At LTP level, post procedure that follows this the line flowchart to perform the procedure.
Page 439 Card replacement procedures 8-73 NT6X19 (continued) Replacing an NT6X19 in an LCM At your Current Location Obtain a replacement card. Ensure the replacement card has the same product equipment code (PEC), including suffix, as the card that is to be removed.
Page 440 8-74 Card replacement procedures NT6X19 NT6X19 (continued) (end) At the MAP terminal Test the line card just replaced by typing >DIAG and pressing the Enter key. If the DIAG passed step7 failed step10 Return the line card to service by typing >RTS and pressing the Enter key.
Page 441: Nt6X20 Lcm
8-75 Card replacement procedures 8-75 8-75 NT6X20 Application Use this procedure to replace the following card in a line concentrating module (LCM). Suffixes Name NT6X20 Message waiting converter Common procedures The procedure “Replacing a line card” is referenced in this procedure: Action The following flowchart is only a summary of the procedure.
Page 442 8-76 Card replacement procedures NT6X20 (continued) Summary of card replacement procedure for NT6X20 card in an LCM This flowchart summarizes the procedure. At LTP level, post Use the instructions in the the line procedure that follows this flowchart to perform the procedure.
Page 443 Card replacement procedures 8-77 NT6X20 (continued) Replacing an NT6X20 in an LCM At the MAP terminal Obtain a replacement card. Ensure the replacement card has the same product equipment code (PEC), including suffix, as the card to be removed. Access the line test position (LTP) level of the MAP terminal and post the line associated with the card to be replaced by typing >MAPCI;MTC;LNS;LTP;POST L site rlcm lsg ckt and pressing the Enter key.
Page 444 8-78 Card replacement procedures NT6X20 NT6X20 (continued) (end) At the MAP terminal Test the line card just replaced by typing >DIAG and pressing the Enter key. If the DIAG passed step 7 failed step 10 Return the line card to service by typing and pressing the Enter key.
Page 445: Nt6X21 Lcm
8-79 Card replacement procedures 8-79 8-79 NT6X21 Application Use this procedure to replace the following card in an ouside plant access cabinet (OPAC) line concentrating module (LCM). Suffixes Name NT6X21 AA, AB, Line card type C, Meridian Digital Centrex (MDC), AC, AD electronic business set Common procedures...
Page 446 8-80 Card replacement procedures NT6X21 (continued) Summary of card replacement procedure for NT6X21 card in an LCM This flowchart summarizes the procedure. At LTP level of the Use the instructions in the MAP display, post procedure that follows this the line flowchart to perform the procedure.
Page 447 Card replacement procedures 8-81 NT6X21 (continued) Replacing an NT6X21 in an LCM At your Current Location Obtain a replacement card. Ensure the replacement card has the same product equipment code (PEC), including suffix, as the card to be removed. Make DIP switch changes for the line card. If the line card code is AA, AB, AC step 4...
Page 448 8-82 Card replacement procedures NT6X21 (continued) Busy the line by typing >BSY and pressing the Enter key. At the LCM Go to the procedure for Replacing a line card. When you have completed the procedure, return to this point. At the MAP terminal Test the line card just replaced by typing >DIAG and pressing the Enter key.
Page 449 Card replacement procedures 8-83 NT6X21 NT6X21 (continued) (end) You have successfully completed this procedure. DMS-100 Family OPAC Maintenance Manual XPM12 and up...
Page 450: Nt6X45 Hie
8-84 8-84 Card replacement procedures 8-84 NT6X45 Application Use this procedure to replace the following card in a host interface equipment (HIE) shelf. Suffix Name NTX645 ESA processor Common procedures The procedure “Replacing a card” is referenced in this procedure. Action The following flowchart is only a summary of the procedure.
Page 451 Card replacement procedures 8-85 NT6X45 (continued) Summary of card replacement procedure for an NT6X45 card in an HIE This flowchart summarizes the procedure. Use the instructions in the At PM level post procedure that follows this and busy the ESA flowchart to perform the processor.
Page 452 8-86 Card replacement procedures NT6X45 (continued) Replacing an NT6X45 in an HIE At your Current Location Proceed only if you have been directed to this card replacement procedure from a step in a maintenance procedure, are using the procedure for verifying or accepting cards, or have been directed to this procedure by your maintenance support group.
Page 453 Card replacement procedures 8-87 NT6X45 (continued) At the MAP terminal Load the ESA processor by typing >LOADPM and pressing the Enter key. The message loadfile not step 9 found in directory is received. load passes step 26 load fails step 29 Determine the type of device on which the PM load files are located.
Page 454 8-88 Card replacement procedures NT6X45 (continued) Demount the tape drive by typing >DEMOUNT T tape_no and pressing the Enter key. where tape_no is the number of the tape drive containing the PM load files Go to step 25. From office records, determine and note the number of the input/output controller (IOC) disk and the name of the volume that contains the PM load files.
Page 455 Card replacement procedures 8-89 NT6X45 NT6X45 (continued) (end) Leave the disk utility by typing >QUIT and pressing the Enter key. Reload the ESA processor by typing >LOADPM and pressing the Enter key. load failed step 29 load passed step 26 Return the ESA processor to service by typing >RTS and pressing the Enter key.
Page 456: Nt6X47 Hie
8-90 8-90 Card replacement procedures 8-90 NT6X47 Application Use this procedure to replace the following card in a host interface equipment (HIE) shelf. Suffixes Name NT6X47 Master processor memory circuit card (see note below) Note: This card is also referred to as the ESA memory card. Common procedures The procedure “Replacing a card”...
Page 457 Card replacement procedures 8-91 NT6X47 (continued) Summary of card replacement procedure for an NT6X47 in an HIE This flowchart summarizes the procedure. Use the instructions in the At PM level, post procedure that follows this and busy the ESA flowchart to perform the processor procedure.
Page 458 8-92 Card replacement procedures NT6X47 (continued) Replacing an NT6X47 in an HIE At your Current Location Proceed only if you have been directed to this card replacement procedure from a step in a maintenance procedure, are using the procedure for verifying or accepting cards, or have been directed to this procedure by your maintenance support group.
Page 459 Card replacement procedures 8-93 NT6X47 (continued) At the MAP terminal Load the ESA processor by typing >LOADPM and pressing the Enter key. message loadfile not found step 9 in directory is received load passed step 26 load failed step 29 Determine the type of device where the peripheral module (PM) load files are located.
Page 460 8-94 Card replacement procedures NT6X47 (continued) Demount the tape drive by typing >DEMOUNT T tape_no and pressing the Enter key. where tape_no is the number of the tape drive containing the PM load files Go to step 25. From office records, determine and note the number of the input/output controller (IOC) disk and the name of the volume that contains the PM load files.
Page 461 Card replacement procedures 8-95 NT6X47 NT6X47 (continued) (end) Leave the disk utility by typing >QUIT and pressing the Enter key. Reload the ESA processor by typing >LOADPM and pressing the Enter key. load failed step 29 load passed step 26 Return the ESA processor to service by typing >RTS and pressing the Enter key.
Page 462: Nt6X50 Hie
8-96 8-96 Card replacement procedures 8-96 NT6X50 Application Use this procedure to replace the following card in a host interface equipment (HIE) shelf. Suffix Name NT6X50 DS-1 EFF card (See notes below.) Note 1: EFF is the acronym for “extended frame format.” Note 2: This card has also been referred to as the “DS-1 interface card.”...
Page 463 Card replacement procedures 8-97 NT6X50 (continued) Summary of card replacement procedure for NT6X50 in an HIE This flowchart summarizes the procedure. Determine links serviced by card Use the instructions in the to be replaced procedure that follows this flowchart to perform the procedure.
Page 464 8-98 Card replacement procedures NT6X50 (continued) Replacing an NT6X50 in an HIE At your Current Location Proceed only if you have been directed to this card replacement procedure from a step in a maintenance procedure, are using the procedure for verifying or accepting cards, or have been directed to this procedure by your maintenance support group.
Page 465 Card replacement procedures 8-99 NT6X50 (continued) Display P-side link information by typing >TRNSL P and pressing the Enter key. Example of a MAP response: Link 2: LCM REM1 00 0 0;Cap MS;Status: OK;MsgCond:OPN Link 6: LCM REM1 00 0 1;Cap MS;Status:SysB;MsgCond:CLS Record the numbers of the links with status not OK.
Page 466 8-100 Card replacement procedures NT6X50 (continued) Busy LCM unit 0 for the card in slot 19 or LCM unit 1 for the card in slot 20 by typing >BSY UNIT unit_no and pressing the Enter key. where unit_no is the LCM unit to be busied (0 or 1) Note: Extended DS-1 maintenance is applied to DS-1 message supporting links, the unit these links support must be manually busied before the DS-1 link can be busied.
Page 467 Card replacement procedures 8-101 NT6X50 (continued) At the MAP terminal: Test the links busied in step 14 by typing >TST LINK link_no and pressing the Enter key. where link_no is one of two links associated with the replacement card Repeat this entry for the other link associated with the replacement card. If test failed step 25...
Page 468 8-102 Card replacement procedures NT6X50 NT6X50 (continued) (end) Post the LCM by typing >POST LCM site frame lcm and pressing the Enter key. where site is the site name of the OPAC (alphanumeric) frame is the frame number of the OPAC (0–99) is the number of the LCM Return-to-service the LCM unit busied in step 12 by typing >RTS UNIT unit_no...
Page 469: Nt6X51 Lcm
8-103 Card replacement procedures 8-103 8-103 NT6X51 Application Use this procedure to replace the following card in a line concentrating module (LCM). Suffixes Name NT6X51 AB, AC Extended LCM processor Common procedures The procedure “Replacing a card” is referenced in this procedure. Action The following flowchart is only a summary of the procedure.
Page 470 8-104 Card replacement procedures NT6X51 (continued) Summary of card replacement procedure for NT6X51 card in an LCM This flowchart summarizes the procedure. At PM level, post Use the instructions in the the LCM procedure that follows this flowchart to perform the procedure.
Page 471 Card replacement procedures 8-105 NT6X51 (continued) Replacing an NT6X51 in an LCM ATTENTION Proceed only if you have been directed to this card replacement procedure from a step in a maintenance procedure, are using the procedure for verifying or accepting cards, or have been directed to this procedure by your maintenance support group.
Page 472 8-106 Card replacement procedures NT6X51 (continued) Determine the state of the PM unit associated with the card you are replacing. If the state of the PM unit is SysB , CBsy, ISTb, InSv step 5 step6 ManB step 30 Offl Busy the LCM unit containing the faulty card by typing >BSY UNIT lcm_unit and pressing the Enter key.
Page 473 Card replacement procedures 8-107 NT6X51 (continued) At the MAP terminal Load the LCM unit by typing >LOADPM UNIT lcm_unit CC and pressing the Enter key. where lcm_unit is the LCM unit to be loaded (0 or 1) message loadfile not found in step 9 directory is received load passed...
Page 474 8-108 Card replacement procedures NT6X51 (continued) where tape_no is the number of the tape containing the PM load files Demount the tape drive by typing >DEMOUNT T tape_no and pressing the Enter key. where tape_no is the number of the tape drive containing the PM load files Go to step 25.
Page 475 Card replacement procedures 8-109 NT6X51 (continued) file_name is the name of the SLM disk volume containing the file to be loaded, obtained in step 21. Leave the disk utility by typing >QUIT and pressing the Enter key. Reload the LCM unit by typing >LOADPM UNIT lcm_unit CC and pressing the Enter key.
Page 476 8-110 Card replacement procedures NT6X51 NT6X51 (continued) (end) Obtain further assistance in replacing this card by contacting the personnel responsible for higher level of support. Consult office personnel to determine why the component is offline. Continue as directed by office personnel. You have successfully completed this procedure.
Page 477: Nt6X52 Lcm
8-111 Card replacement procedures 8-111 8-111 NT6X52 Application Use this procedure to replace the following card in a line concentrating module (LCM). Suffixes Name NT6X52 AA, AB Digroup control card Common procedures The procedure “Replacing a card” is referenced in this procedure. Action The following flowchart is only a summary of the procedure.
Page 478 8-112 Card replacement procedures NT6X52 (continued) Summary of card replacement procedure for NT6X52 card in an LCM shelf This flowchart summarizes the procedure. Use the instructions in the procedure that follows this flowchart to perform the procedure. At PM level, post the LCM Busy the unit with the faulty card...
Page 479 Card replacement procedures 8-113 NT6X52 (continued) Replacing an NT6X52 in an LCM At your Current Location Proceed only if you have been directed to this card replacement procedure from a step in a maintenance procedure, are using the procedure for verifying or accepting cards, or have been directed to this procedure by your maintenance support group.
Page 480 8-114 Card replacement procedures NT6X52 (continued) Load the LCM unit by typing LOADPM UNIT lcm_unit CC and pressing the Enter key. where lcm_unit is the LCM unit to be loaded (0 or 1) message loadfile not found in step 9 directory is received load passes step 26...
Page 481 Card replacement procedures 8-115 NT6X52 (continued) Demount the tape drive by typing >DEMOUNT T tape_no and pressing the Enter key. where tape_no is the number of the tape drive containing the PM load files Go to step 25. From office records, determine and note the number of the input/output controller (IOC) disk and the name of the volume that contains the PM load files.
Page 482 8-116 Card replacement procedures NT6X52 (continued) Leave the disk utility by typing >QUIT and pressing the Enter key. Reload the LCM unit by typing >LOADPM UNIT lcm_unit CC and pressing the Enter key. where lcm_unit is the LCM unit to be loaded (0 or 1) load failed step 29 load passed...
Page 483 Card replacement procedures 8-117 NT6X52 NT6X52 (continued) (end) Obtain further assistance in replacing this card by contacting the personnel responsible for higher level of support. You have successfully completed this procedure. DMS-100 Family OPAC Maintenance Manual XPM12 and up...
Page 484: Nt6X53 Lcm
8-118 8-118 Card replacement procedures 8-118 NT6X53 Application Use this procedure to replace the following card in a line concentrating module (LCM). Suffixes Name NT6X53 Power converter (5V/15V) Common procedures The procedure “Replacing a card” is referenced in this procedure. Action The following flowchart is only a summary of the procedure.
Page 485 Card replacement procedures 8-119 NT6X53 (continued) Summary of card replacement procedure for an NT6X53 in an LCM This flowchart summarizes the procedure. At PM level, post the LCM Use the instructions in the procedure that follows this flowchart to perform the procedure.
Page 486 8-120 Card replacement procedures NT6X53 (continued) Replacing an NT6X53 in an LCM At your Current Location Proceed only if you have been directed to this card replacement procedure from a step in a maintenance procedure, are using the procedure for verifying or accepting cards, or have been directed to this procedure by your maintenance support group.
Page 487 Card replacement procedures 8-121 NT6X53 (continued) Power up the NT6X53 converter just inserted. Determine the correct MSP switch for the shelf in which the power converter was replaced from the diagram below. The switches are numbered corresponding to the shelf position. Circuit breaker Unit FED Locations...
Page 488 8-122 Card replacement procedures NT6X53 (continued) Determine the type of device on which the PM load files are located. If load files are located on tape step12 IOC disk step18 SLM disk step 23 Locate the tape that contains the PM load files. Mount the tape on a magnetic tape drive.
Page 489 Card replacement procedures 8-123 NT6X53 (continued) List the IOC file names into your user directory by typing >LISTVOL volume_name ALL and pressing the Enter key. where volume_name is the name of the volume that contains the PM load files Leave the disk utility by typing >QUIT and pressing the Enter key.
Page 490 8-124 Card replacement procedures NT6X53 NT6X53 (continued) (end) Return the LCM unit to service by typing >RTS UNIT lcm_unit and pressing the Enter key. where lcm_unit is the LCM busied in step 5 (0 or 1) If RTS passed step 29 failed step 31 Send any faulty cards for repair according to local procedure.
Page 491: Nt6X54 Lcm
8-125 Specific card replacement procedures 8-125 8-125 NT6X54 Application Use this procedure to replace the following card in a line concentrating module (LCM). Suffixes Name NT6X54 Bus interface card (BIC) NT6X54 ISDN drawer controller (IDC) card (BIC) Note: Peripherals with ISDN line drawer for remotes (ILDR) must use the NT6X54DA card.
Page 492 8-126 Specific card replacement procedures NT6X54 (continued) Summary of card replacement procedure for NT6X54 card in an LCM At PM level, post This flowchart summarizes the the LCM procedure. Use the instructions in the procedure that follows this Busy LSGs of flowchart to perform the drawer containing procedure.
Page 493 Specific card replacement procedures 8-127 NT6X54 (continued) Replacing an NT6X54 in an LCM At your Current Location ATTENTION If you are entering this procedure due to a loss of power in the LCM’s controller (LGC/LTC/RCC), check logutil for PM181 log with reason text of: and go to step 10.
Page 494 8-128 Specific card replacement procedures NT6X54 (continued) Example of a MAP display: Trks Appl 1LCM SysB ManB OffL CBsy ISTb InSv 0 Quit 2 Post_ 4 SwRg Rem1 OO O ISTb Links_OOS: CSide 0 PSide 0 5 Trnsl Unit–0: InSv Mtce /RG: 6 Tst...
Page 495 Specific card replacement procedures 8-129 NT6X54 (continued) Busy both line subgroups associated with the LCM drawer in which the card is being replaced by typing >BSY DRWR and pressing the Enter key. Example of a MAP response; Please confirm (“YES,” “Y,” “NO,” or “N”): Confirm the system prompt by typing >YES and pressing the Enter key.
Page 496 8-130 Specific card replacement procedures NT6X54 (continued) Example of a MAP display: Trks Appl 1LCM SysB ManB OffL CBsy ISTb InSv 0 Quit 2 Post_ 4 SwRg Rem1 OO O ISTb Links_OOS: CSide 0 PSide 0 5 Trnsl Unit–0: InSv Mtce /RG: 6 Tst...
Page 497 Wear a wrist strap connected, through a 1-megohm resistor, to a suitably grounded object, such as a metal workbench or a DMS switch cabinet (Nortel [Northern Telecom] Corporate Standard 5028). Store and transport circuit cards in an ESD protective container.
Page 498 8-132 Specific card replacement procedures NT6X54 (continued) WARNING Hot materials Exercise care when handling the line card. The line feed resistor may be very hot. Put on a wrist strap. Open the line drawer by following these substeps: Face the drawer shelf and grasp the lip at the bottom of the drawer. Push up on the drawer latch with your thumb and pull the drawer out approximately 15.0 cm (about 6.0 in).
Page 499 Specific card replacement procedures 8-133 NT6X54 (continued) If you were directed to this procedure from the Alarm Clearing Procedures, return now to the alarm clearing procedure that directed you here. Otherwise, continue with step 21. At the MAP terminal Determine which procedure to use to return the line subgroups to service. If the card you are replacing is NT6X54AA step 22...
Page 500 8-134 Specific card replacement procedures NT6X54 NT6X54 (continued) (end) Record the following items in office records: date the card was replaced serial number of the card symptoms that prompted replacement of the card Go to step 27. Obtain further assistance in replacing this card by contacting the personnel responsible for higher level of support.
Page 501: Nt6X60 Hie
8-135 Card replacement procedures 8-135 8-135 NT6X60 Application Use this procedure to replace the following card in a host interface equipment (HIE). Suffixes Name NT6X60 AA, BA, North American ring generator (RG) CA,DA Common procedures None Action The following flowchart is only a summary of the procedure. To replace the card, use the instructions in the step-action procedure that follows the flowchart.
Page 502 8-136 Card replacement procedures NT6X60 (continued) Summary of card replacement procedure for NT6X60 card in an HIE This flowchart summarizes the Post the LCM Return the procedure. at the PM level busied LCM of MAP unit to service Use the instructions in the procedure that follows this flowchart to perform the Switch RG...
Page 503 Card replacement procedures 8-137 NT6X60 (continued) Replacing an NT6X60 in an HIE At your Current Location CAUTION Loss of service This procedure includes directions to manually busy one or more peripheral module (PM) units. Since manually busying a PM unit can cause service degradation, perform this procedure only if necessary to restore out-of-service components.
Page 504 8-138 Card replacement procedures NT6X60 (continued) Determine the line concentrating array (LCA) associated with the NT6X60 card to be replaced by using the following table. LCM unit RG card HIE slot LCA–0 RG–0 1, 2, 3, 4 LCA–1 RG–1 5, 6, 7, 8 Check the state of the PM units.
Page 505 Card replacement procedures 8-139 NT6X60 (continued) At the MSP Turn OFF the circuit breaker for the ringing generator to be replaced by using the information in the following table: Circuit breaker Ringing generator Locations CB06 RG–0 HIE slots 1, 2, 3, 4 CB08 RG–1 HIE slots 5, 6, 7, 8...
Page 506 8-140 Card replacement procedures NT6X60 (continued) Open the locking levers on the replacement card. Align the card with the slots in the shelf and gently slide the card into the shelf. Seat and lock the card. 1. Using your fingers or thumbs, push on the upper and lower edges of the faceplate to ensure that the card is fully seated in the shelf.
Page 507 Card replacement procedures 8-141 NT6X60 (continued) Switch RG activity to the new RG by typing >SWRG UNIT unit_no and pressing the Enter key. where unit_no is the PM unit number (0 or 1) Example of a MAP response: LCM REM1 00 0 InSv Links OOS: Cside 0 Pside 0 Unit 0: InSv /RG:0...
Page 508 8-142 Card replacement procedures NT6X60 NT6X60 (continued) (end) Align RG activity to the preferred RG by typing >SWRG UNIT lcm_unit and pressing the Enter key. where lcm_unit is the number of the LCM unit (0 or 1) Note: Repeat this step until both units of the LCM are aligned to the preferred If RTS passed step 21...
Page 509: Nt6X71 Lcm
8-143 Card replacement procedures 8-143 8-143 NT6X71 Application Use this procedure to replace the following card in a line concentrating module (LCM). Suffixes Name NT6X71 Data line card DMS-100/SL-100 Common procedures The procedure “Replacing a line card” is referenced in this procedure: Action The following flowchart is only a summary of the procedure.
Page 510 8-144 Card replacement procedures NT6X71 (continued) Summary of card replacement procedure for an NT6X71 card in an LCM This flowchart summarizes the procedure. At LTP level of the Use the instructions in the MAP screen, post procedure that follows this the line flowchart to perform the procedure.
Page 511 Card replacement procedures 8-145 NT6X71 (continued) Replacing an NT6X71 in an LCM At your Current Location Obtain a replacement card. Ensure the replacement card has the same product equipment code (PEC), including suffix, as the card to be removed. At the MAP terminal Access the line test position (LTP) level of the MAP display and post the line associated with the card to be replaced by typing >MAPCI;MTC;LNS;LTP;POST L site rlcm lsg ckt...
Page 512 8-146 Card replacement procedures NT6X71 NT6X71 (continued) (end) Test the line card just replaced by typing >DIAG and pressing the Enter key. If the DIAG passed step 7 failed step 10 Return the line card to service by typing >RTS and pressing the Enter key.
Page 513: Nt6X73 Hie
8-147 Card replacement procedures 8-147 8-147 NT6X73 Application Use this procedure to replace the following card in a host interface equipment (HIE) shelf. Suffixes Name NT6X73 Link control card Common procedures The procedure “Replacing a card” is referenced in this procedure: Action The following flowchart is only a summary of the procedure.
Page 514 8-148 Card replacement procedures NT6X73 (continued) Summary of card replacement procedure for an NT6X73 card in an HIE This flowchart summarizes the At the PM level of procedure. the MAP screen, post the LCM Use the instructions in the procedure that follows this flowchart to perform the Busy the LCM procedure.
Page 515 Card replacement procedures 8-149 NT6X73 (continued) Replacing an NT6X73 in an HIE At your Current Location Proceed only if you have been directed to this card replacement procedure from a step in a maintenance procedure, are using the procedure for verifying or accepting cards, or have been directed to this procedure by your maintenance support group.
Page 516 8-150 Card replacement procedures NT6X73 (continued) CAUTION Loss of service This procedure contains directions to busy one or more peripheral modules (PM) in a frame. Since busying a PM affects subscriber service, replace the link control card (LCC) only during periods of low traffic Busy the LCM unit associated with the faulty NT6X73 by typing >BSY UNIT lcm_unit...
Page 517 Card replacement procedures 8-151 NT6X73 NT6X73 (continued) (end) symptoms that prompted replacement of the card Proceed to step 13. Obtain further assistance in replacing this card by contacting the personnel responsible for higher level of support. You have successfully completed this procedure. DMS-100 Family OPAC Maintenance Manual XPM12 and up...
Page 518: Nt6X74 Rmm
8-152 8-152 Card replacement procedures 8-152 NT6X74 Application Use this procedure to replace the following card in a remote maintenance module (RMM) shelf. Suffix Name NT6X74 RMM control card Common procedures The procedure “Replacing a card” is referenced in this procedure. Action The following flowchart is a summary of the procedure.
Page 519 Card replacement procedures 8-153 NT6X74 (continued) Summary of replacing an NT6X74 in an RMM This flowchart summarizes the At the TTP level, of procedure. the MAP display, post the RMM Use the instructions that follow this flowchart to perform the procedure.
Page 520 8-154 Card replacement procedures NT6X74 (continued) Replacing an NT6X74 in an RMM At your Current Location Obtain a replacement card. Ensure that the replacement card has the same product equipment code (PEC), including suffix, as the card to be removed. If you were directed to this procedure from the Alarm Clearing Procedures , go to step 5.
Page 521 Card replacement procedures 8-155 NT6X74 (continued) At the MAP terminal Reload the RMM by typing >LOADPM and pressing the Enter key. The message loadfile not step 8 found in directory is received. load passed step 26 load failed step 29 Determine the type of device on which the PM load files are located.
Page 522 8-156 Card replacement procedures NT6X74 (continued) Demount the tape drive by typing >DEMOUNT T tape_no and pressing the Enter key. where tape_no is the number of the tape drive containing the PM load files Go to step 25. From office records, determine and note the number of the input/output controller (IOC) disk and the name of the volume that contains the PM load files.
Page 523 Card replacement procedures 8-157 NT6X74 (continued) List the SLM file names into your user directory by typing >LF file_name and pressing the Enter key. where file_name is the name of the SLM disk volume containing the PM load files obtained in step 20. Leave the disk utility by typing >QUIT and pressing the Enter key.
Page 524 8-158 Card replacement procedures NT6X74 NT6X74 (continued) (end) Obtain further assistance in replacing this card by contacting the personnel responsible for higher level of support. You have completed this procedure. 297-8211-550 Standard 05.01 August 1999...
Page 525: Nt6X75 Hie
8-159 Card replacement procedures 8-159 8-159 NT6X75 Application Use this procedure to replace the following card in a host interface equipment (HIE) shelf. Suffix Name NT6X75 ESA tone and clock card Common procedures The procedure “Replacing a card” is referenced in this procedure. Action The following flowchart is only a summary of the procedure.
Page 526 8-160 Card replacement procedures NT6X75 (continued) Summary of card replacement procedure for an NT6X75 in an HIE Post and reload the This flowchart summarizes the At the PM level, ESA processor. procedure. post the IstB LCM. Use the instructions in the procedure that follows this flowchart to perform the Return the ESA...
Page 527 Card replacement procedures 8-161 NT6X75 (continued) Replacing an NT6X75 in an HIE At your current location: Proceed only if you have been directed to this card replacement procedure from a step in a maintenance procedure, are using the procedure for verifying or accepting cards, or have been directed to this procedure by your maintenance support group.
Page 528 8-162 Card replacement procedures NT6X75 (continued) Busy the ESA processor by typing >BSY and pressing the Enter key. Example of a MAP response: This action will take this PM out of service Please confirm (“Yes” or “No”) Respond by typing >YES and pressing the Enter key.
Page 529 Card replacement procedures 8-163 NT6X75 (continued) Post the Emergency Stand-Alone (ESA) processor identified in step 5 by typing >POST ESA esa_no and pressing the Enter key. where esa_no is the number of the ESA processor Load the ESA processor by typing >LOADPM and pressing the Enter key.
Page 530 8-164 Card replacement procedures NT6X75 (continued) List the contents of the tape in your user directory by typing >LIST T tape_no and pressing the Enter key. where tape_no is the number of the tape containing the PM load files Demount the tape drive by typing >DEMOUNT T tape_no and pressing the Enter key.
Page 531 Card replacement procedures 8-165 NT6X75 (continued) List the SLM file names into your user directory by typing >LV CM;LF volume_name and pressing the Enter key. where volume_name is the name of the disk volume that contains the PM load files identified in step 27.
Page 532 8-166 Card replacement procedures NT6X75 NT6X75 (continued) (end) Obtain further assistance in replacing this card by contacting the personnel responsible for higher level of support. You have completed this procedure. If you were directed here from an alarm clearing procedure, return to the maintenance procedure that directed you to this procedure and continue as directed.
Page 533: Nt6X99 Lcm
8-167 Card replacement procedures 8-167 8-167 NT6X99 Application Use this procedure to replace the following card in a line concentrating module (LCM). Suffix Name NT6X99 Datapath bit error rate tester line card (2 slot) Common procedures The procedure “Replacing a line card” is referenced in this procedure. Action The following flowchart is only a summary of the procedure.
Page 534 8-168 Card replacement procedures NT6X99 (continued) Summary of card replacement procedure for NT6X99 card in an LCM This flowchart summarizes the procedure. At the LTP level, post the line. Use the instructions in the procedure that follows this flowchart to perform the procedure.
Page 535 Card replacement procedures 8-169 NT6X99 (continued) Replacing an NT6X99 in an LCM At your Current Location Obtain a replacement card. Ensure that the replacement card has the same product equipment code (PEC), including suffix, as the card to be removed. At the MAP terminal Access the line test position (LTP) level of the MAP display and post the line associated with the card to be replaced by typing...
Page 536 8-170 Card replacement procedures NT6X99 NT6X99 (continued) (end) Test the line card just replaced by typing >DIAG and pressing the Enter key. If the DIAG passed step 7 failed step 10 Return the line card to service by typing >RTS and pressing the Enter key.
Page 537: Nt8X02 Bcu
8-171 Card replacement procedures 8-171 8-171 NT8X02 Application Use this procedure to replace the following card in a battery control unit (BCU). Suffix Name NT8X02 Battery charger controller card Common procedures The procedure “Replacing a card” is referenced in this procedure. Action The following flowchart is a summary of the procedure.
Page 538 8-172 Card replacement procedures NT8X02 (continued) Summary of card replacement procedure for NT8X02 card in a BCU This flowchart summarizes the Post the procedure. OPAC PES Use the instructions in the procedure that follows this flowchart to perform the Busy the procedure.
Page 539 Card replacement procedures 8-173 NT8X02 (continued) Replacing an NT8X02 card in a BCU At your Current Location Proceed only if you have been directed to this card replacement procedure from a step in a maintenance procedure, are using the procedure for verifying or accepting cards, or have been directed to this procedure by your maintenance support group.
Page 540 8-174 Card replacement procedures NT8X02 NT8X02 (continued) (end) If you were directed to this procedure from the Alarm Clearing Procedures , return now to the alarm clearing procedure that directed you here. Otherwise, go to step 10. At the MAP terminal Perform diagnostics by typing >TST and pressing the Enter key...
Page 541: Ntmx45 Hie
8-175 Card replacement procedures 8-175 8-175 NTMX45 Application Use this procedure to replace an NTMX45 in host interface equipment (HIE) shelf. Suffixes Name NTMX45 Emergency Stand-Alone (ESA) processor (EP) If you cannot identify the PEC, suffix, and shelf or frame for the card you want to replace, refer to the “Index”...
Page 542 8-176 Card replacement procedures NTMX45 (continued) This flowchart provides a Post and busy summary of the procedure. the ESA Use the instructions in the step-action procedure that follows this flowchart to Unseat the QUERYPM perform the procedure. NTMX45 card CNTRS firmware load Remove and Firmware load...
Page 543 Card replacement procedures 8-177 NTMX45 (continued) Replacing an NTMX45 HIE At your Current Location Continue if you were referred to this card replacement procedure from a step in a maintenance procedure to verify or accept cards by your maintenance support group Get a replacement card.
Page 544 8-178 Card replacement procedures NTMX45 (continued) At the MAP terminal Busy the inactive ESA processor by typing >BSY and pressing the Enter key. Example of a MAP response: ESA 4 This action will take this PM out of service Please confirm (“YES”, “Y”, “NO”, or “N”): Respond by typing >YES At the RLCM frame...
Page 545 Card replacement procedures 8-179 NTMX45 (continued) Locate the damaged card on the appropriate shelf. Open the locking levers on the damaged card and carefully pull the card towards you until it clears the shelf. Make sure that the replacement card has the same PEC and suffix as the card you just removed.
Page 546 8-180 Card replacement procedures NTMX45 (continued) Align the card with the slots in the shelf and carefully slide the card into the shelf. Seat and lock the card. Use your fingers or thumbs to push on the upper and lower edges of the faceplate.
Page 547 Card replacement procedures 8-181 NTMX45 (continued) Use the following table to determine the next step in this procedure. If you entered this procedure from an alarm clearing procedure step 34 other step 9 Load the ESA processor by typing >LOADPM and pressing the Enter key.
Page 548 8-182 Card replacement procedures NTMX45 (continued) List the contents of the tape in your user directory by typing >LIST T tape_no and pressing the Enter key. where tape_no is the number of the tape drive containing the PM load files Demount the tape by typing >DEMOUNT T tape_no and pressing the Enter key.
Page 549 Card replacement procedures 8-183 NTMX45 (continued) Access the disk utility level of the MAP display by typing >DISKUT and pressing the Enter key. List all SLM disk volumes into your user directory by typing >LV CM and pressing the Enter key. List the SLM file names into your user directory by typing >LF volume_name and pressing the Enter key.
Page 550 8-184 Card replacement procedures NTMX45 (continued) Query the PM counters for the firmware load on the NTMX45 by typing >QUERYPM CNTRS and pressing the Enter key. Example of a MAP display: Unsolicitited MSG limit = 250, count = 0 Ram Load: MSA12AM1 EPRom Version: Ac01 NP02 NP02...
Page 551 Card replacement procedures 8-185 NTMX45 NTMX45 (continued) (end) Return the ESA to service by typing >RTS and pressing the Enter key. If the RTS passes step 32 fails step 35 Send any damaged cards for repair according to local procedure. Record the following items in office records: date the card was replaced serial number of the card...
Page 552: Ntrx41 Msp
8-186 8-186 Card replacement procedures 8-186 NTRX41 Application Use this procedure to replace an NTRX41 card in an MSP. Suffixes Name NTRX41 Alarm Module Common procedures None Action The following flowchart is only a summary of the procedure. To replace the card, use the instructions in the step-action procedure that follows the flowchart.
Page 553 Card replacement procedures 8-187 NTRX41 (continued) Summary of card replacement procedure for an NTRX41 card in an MSP This flowchart summarizes the Locate faulty procedure. card Use the instructions in the procedure that follows this flowchart to perform the Remove and procedure.
Page 554 8-188 Card replacement procedures NTRX41 (continued) Replacing an NTRX41 in an MSP At your Current Location Proceed only if you have been directed to this card replacement procedure from a step in a maintenance procedure, are using the procedure for verifying or accepting cards, or have been directed to this procedure by your maintenance support group.
Page 555 Card replacement procedures 8-189 NTRX41 (continued) WARNING Static electricity damage Wear a wrist strap connected to a wrist strap grounding point while handling circuit cards. This protects the cards against damage caused by static electricity. WARNING Risk of injury from high energy levels, equipment damage When removing or inserting a card, do not apply direct pressure to the components and do not force the cards into...
Page 556 8-190 Card replacement procedures NTRX41 (continued) At the front of the MSP, disengage the captive screw at the top of the circuit card. Pull out the lever on the lower left side of the alarm module. Gently pull the circuit card toward you until it clears the shelf. Ensure the replacement circuit card has the same PEC, including suffix, as the circuit card just removed.
Page 557 Card replacement procedures 8-191 NTRX41 NTRX41 (continued) (end) Tighten the captive screw at the top of the circuit card. If alarm lights remain off step 7 light up step 9 Send any faulty cards for repair according to local procedure. Record the date the card was replaced, the serial number of the card, and the symptoms that prompted replacement of the card.
Page 558: Ntrx42 Msp
8-192 8-192 Card replacement procedures 8-192 NTRX42 Application Use this procedure to replace an NTRX42 card in an MSP. Suffixes Name NTRX42 AA, BA, CA, DA, EA Breaker Module Common procedures None Action A connector removal tool is available to facilitate removal of the AMP Faston receptacles from the power input and output connectors of the MSP modules.
Page 559 Card replacement procedures 8-193 NTRX42 (continued) Connector removal tool P0746192 The following flowchart is only a summary of the procedure. To replace the card, use the instructions in the step-action procedure that follows the flowchart. The detailed procedure depends on which circuit cards are served by the breaker module circuit card (NTRX42).
Page 560 8-194 Card replacement procedures NTRX42 (continued) Summary of card replacement procedure for an NTRX42 card in an MSP This flowchart summarizes the Identify shelves procedure. served by this Use the instructions in the procedure that follows this flowchart to perform the procedure.
Page 561 Card replacement procedures 8-195 NTRX42 (continued) Replacing an NTRX42 in an MSP At your Current Location Proceed only if you have been directed to this card replacement procedure from a step in a maintenance procedure, are using the procedure for verifying or accepting cards, or have been directed to this procedure by your maintenance support group.
Page 562 8-196 Card replacement procedures NTRX42 (continued) At the MAP display Set the MAP display to the PM level and post the RMM by typing the following string: >MAPCI;MTC;PM;POST RMM rmm_no and pressing the Enter key. where rmm_no is the number of the RMM unit from which the card is to be removed Example of a MAP display: Trks Appl...
Page 563 Card replacement procedures 8-197 NTRX42 (continued) Busy the RMM by typing the following string: >BSY and pressing the Enter key. Example of a MAP display: Trks Appl SysB ManB OffL CBsy ISTb InSv 0 Quit 2 Post_ ManB 5 Trnsl 6 Tst 7 Bsy 8 RTS...
Page 564 8-198 Card replacement procedures NTRX42 (continued) At the MAP terminal Set the MAP display to the PM level and post the LCM powered by the circuit breaker by typing the following string: >MAPCI;MTC;PM;POST LCM lcm_site_name lcm_frame_no lcm_no and pressing the Enter key. where lcm_site_name is the name of the site at which the LCM is located lcm_frame_no is the number of the frame in which the LCM is located...
Page 565 Card replacement procedures 8-199 NTRX42 (continued) Busy the LCM unit powered by the circuit breaker, by typing the following string: >BSY UNIT lcm_unit_no and pressing the Enter key. where lcm_unit_no is the number of the LCM unit with the circuit card powered from the circuit breaker Example of a MAP display: Trks...
Page 566 8-200 Card replacement procedures NTRX42 (continued) At the rear of the MSP WARNING Risk of injury from high energy levels, static electricity damage Wear a wrist strap connected to a wrist strap grounding point. This protects the equipment against damage caused by static electricity. WARNING Risk of injury from high energy levels, equipment damage...
Page 567 Card replacement procedures 8-201 NTRX42 (continued) Note wire color and location to facilitate reconnection. Safety tag the front of the circuit breaker to indicate maintenance activity. Using the connector removal tool, manually disconnect the power connectors to the circuit card. Working from the bottom of the MSP shelf to the top of the MSP shelf, manually disconnect and tag the smaller black power connectors located below the larger blue power connector.
Page 568 8-202 Card replacement procedures NTRX42 (continued) Disengage the spring-loaded captive screw at the top of the circuit card. Grasping the top and bottom of unit, gently pull the circuit card towards you until it clears the shelf. NTRX42EA Ensure the replacement circuit card has the same PEC, including suffix, as the circuit card just removed.
Page 569 Card replacement procedures 8-203 NTRX42 (continued) Replace any jumper connectors and cables removed in step 14. Reinsert the power connectors at the rear of the circuit card. At the front of the MSP Apply appropriate label from spare parts on replacement NTRX42 circuit card. Switch on associated power converter.
Page 570 8-204 Card replacement procedures NTRX42 (continued) At the MAP terminal Load the LCM unit by typing >LOADPM UNIT lcm_unit_no CC and pressing the Enter key. where lcm_unit_no is the number of the LCM unit to loaded (0 or 1) message “loadfile not step 25 found in directory”...
Page 571 Card replacement procedures 8-205 NTRX42 (continued) List the contents of the tape in your user directory by typing >LIST T tape_no and pressing the Enter key. where tape_no is the number of the tape drive containing the PM load files. Demount the tape drive by typing >DEMOUNT T tape_no and pressing the Enter key.
Page 572 8-206 Card replacement procedures NTRX42 (continued) List the SLM file names into your user directory by typing >LV CM and pressing the Enter key. >LF load_file_name and pressing the Enter key. where load_file_name is the name of the volume that contains the PM load files, obtained in step 37.
Page 573 Card replacement procedures 8-207 NTRX42 (continued) Return the LCM unit to service by typing the following string: >RTS UNIT lcm_unit_no and pressing the Enter key. where lcm_unit_no is the number of the LCM unit tested in step 42 If RTS passed step 44 failed...
Page 574 8-208 Card replacement procedures NTRX42 (continued) Determine the type of device on which the PM load files are located. If load files are located on tape step 49 IOC disk step 55 SLM disk step 60 Locate the tape that contains the PM load files. Mount the tape on a magnetic tape drive.
Page 575 Card replacement procedures 8-209 NTRX42 (continued) Access the disk utility level of the MAP by typing >DSKUT and pressing the Enter key. List the IOC file names into your user directory by typing >LISTVOL volume_name ALL and pressing the Enter key. where volume_name is the name of the volume that contains the PM load files, obtained in step 55.
Page 576 8-210 Card replacement procedures NTRX42 (continued) Load the RMM by typing >LOADPM and pressing the Enter key. If load passed step 65 failed step 70 Test the RMM by typing >TST and pressing the Enter key. If TST passed step 66 failed step 70 Return the RMM to service by typing...
Page 577 Card replacement procedures 8-211 NTRX42 NTRX42 (continued) (end) You have completed this procedure. Return to the maintenance procedure that directed you to this card replacement procedure and continue as directed. DMS-100 Family OPAC Maintenance Manual XPM12 and up...
Page 578: Ntrx43 Msp
8-212 8-212 Card replacement procedures 8-212 NTRX43 Application Use this procedure to replace NTRX43 card in an MSP. Suffixes Name NTRX43 Fuse Module Common procedures None Action A connector removal tool is available to facilitate removal of the AMP Faston receptacles from the power input and output connectors of the MSP modules.
Page 579 Card replacement procedures 8-213 NTRX43 (continued) Connector removal tool P0746192 The following flowchart is only a summary of the procedure. To replace the card, use the instructions in the step-action procedure that follows the flowchart. DMS-100 Family OPAC Maintenance Manual XPM12 and up...
Page 580 8-214 Card replacement procedures NTRX43 (continued) Summary of card replacement procedure for an NTRX43 card in an MSP This flowchart summarizes the Locate faulty procedure. card Use the instructions in the procedure that follows this flowchart to perform the procedure. Remove and replace faulty card...
Page 581 Card replacement procedures 8-215 NTRX43 (continued) Replacing an NTRX43 in an MSP At your Current Location Proceed only if you have been directed to this card replacement procedure from a step in a maintenance procedure, are using the procedure for verifying or accepting cards, or have been directed to this procedure by your maintenance support group.
Page 582 8-216 Card replacement procedures NTRX43 (continued) At the rear of the MSP WARNING Risk of injury from high energy levels, voltage present Do not insert metallic objects into the black connectors. Voltage is present and equipment damage could result. Put on a wrist strap. Before removing fuses from fuse module, observe fuse colors, values, and positions.
Page 583 Card replacement procedures 8-217 NTRX43 (continued) Although the connectors have voltage present on them, they are insulated. Secure the connectors to the power-connector bundle with a line-tie until it is time to reconnect them. Remove and tag jumper connectors and cables, which may be present on the back of the circuit card and save for use on the replacement circuit card.
Page 584 8-218 Card replacement procedures NTRX43 (continued) Gently pull the circuit card towards you until it clears the shelf. NTRX43AA Ensure the replacement circuit card has the same PEC, including suffix, as the circuit card just removed. Align the circuit card with the slots in the shelf and gently slide the circuit card into the shelf.
Page 585 Card replacement procedures 8-219 NTRX43 NTRX43 (continued) (end) Install the jumper connectors and cables removed in step 5 onto the replacement circuit card. At the front of the MSP: Replace fuses removed in step 4. If Fuses do not blow step 10 blow (protrude) step 12...
Page 586: Ntrx44 Msp
8-220 8-220 Card replacement procedures 8-220 NTRX44 Application Use this procedure to replace the following card in an MSP. Suffixes Name NTRX44 Talk Battery Module Common procedures None Action A connector removal tool is available to facilitate removal of the AMP Faston receptacles from the power input and output connectors of the MSP modules.
Page 587 Card replacement procedures 8-221 NTRX44 (continued) The following is an illustration of the connector removal tool. Connector removal tool P0746192 The following flowchart is only a summary of the procedure. To replace the card, use the instructions in the step-action procedure that follows the flowchart.
Page 588 8-222 Card replacement procedures NTRX44 (continued) Summary of card replacement procedure for an NTRX44 card in an MSP This flowchart summarizes the Locate faulty procedure. card Use the instructions in the procedure that follows this flowchart to perform the procedure. Verify card is from inactive unit...
Page 589 Card replacement procedures 8-223 NTRX44 (continued) Replacing an NTRX44 in an MSP At your current location: CAUTION Loss of service A loss of service will occur when this procedure is used as an acceptance procedure or when talk battery is already available on the affected LCM unit. Busying the LCM unit is a precaution only and does not transfer talk battery to the other LCM unit.
Page 590 8-224 Card replacement procedures NTRX44 (continued) At the MAP terminal: Access the PM level and post the LCM by typing: >MAPCI;MTC;PM;POST LCM site frame lcm and pressing the Enter key. where site is the site name (alphanumeric) of the OPAC frame is the frame number (0-511) of the OPAC is the number (0 to 1) of the LCM...
Page 591 Card replacement procedures 8-225 NTRX44 (continued) At Bay 1 of the OPAC: WARNING Risk of injury from high energy levels, static electricity damage Wear a wrist strap and connect it to a wrist strap grounding point. This protects the equipment from damage caused by static electricity.
Page 592 8-226 Card replacement procedures NTRX44 (continued) At the rear of the MSP WARNING Risk of injury from high energy levels, voltage present Do not insert metallic objects into the black connectors. Voltage is present and equipment damage could result. Disconnect the NTRX44 card as shown in the following figure. Swing the frame out and locate the back of the card to be replaced.
Page 593 Card replacement procedures 8-227 NTRX44 (continued) At the front of the MSP Remove the NTRX44 card as shown in the following figure. NTRX44AA Disengage the captive screw at the top of the card. Gently pull the card toward you until it clears the shelf. WARNING Risk of injury from high energy levels, equipment damage...
Page 594 8-228 Card replacement procedures NTRX44 (continued) Tighten the captive screw at the top of the card. At the rear of the MSP Locate the replaced card and reattach the power connectors, as noted in step 8. At the front of the MSP If talk battery A, in slots 1 and 2, was replaced, turn on the circuit breaker at slot 10 (circuit breaker 02).
Page 595 Card replacement procedures 8-229 NTRX44 (continued) Determine the type of device on which the PM load files are located. If load files are located on tape step 15 IOC disk step 21 SLM disk step 26 Locate the tape that contains the PM load files. Mount the tape on a magnetic tape drive.
Page 596 8-230 Card replacement procedures NTRX44 (continued) Access the disk utility level of the MAP by typing >DSKUT and pressing the Enter key. List the IOC file names into your user directory by typing >LISTVOL volume_name ALL and pressing the Enter key. where volume_name is the name of the volume that contains the PM load files, obtained in step 21.
Page 597 Card replacement procedures 8-231 NTRX44 NTRX44 (continued) (end) Load the LCM unit by typing >LOADPM UNIT lcm_unit_no CC and pressing the Enter key. where lcm_unit_no is the number of the LCM unit to be loadeded and pressing the Enter key. load passed step 31 load failed...
Page 598: Ntrx66 Msp
8-232 8-232 Card replacement procedures 8-232 NTRX66 Application Use this procedure to replace NTRX66 card in an MSP. Suffix Name NTRX66 Fan Alarm Module Common procedures None Action None The following flowchart is a summary of the procedure. To replace the card, use the instructions in the step-action procedure that follows the flowchart.
Page 599 Card replacement procedures 8-233 NTRX66 (continued) Summary of card replacement procedure for an NTRX66 card in an MSP This flowchart summarizes the Locate faulty procedure. card Use the instructions in the procedure that follows this flowchart to perform the procedure. Remove and replace faulty card...
Page 600 8-234 Card replacement procedures NTRX66 (continued) Replacing an NTRX66 in an MSP At your Current Location Proceed only if you have been directed to this card replacement procedure from a step in a maintenance procedure, are using the procedure for verifying or accepting cards, or have been directed to this procedure by your maintenance support group.
Page 601 Card replacement procedures 8-235 NTRX66 (continued) WARNING Risk of injury from high energy levels, equipment damage Take these precautions when removing or inserting a card. Do not apply direct pressure to the components and do not force the cards into the slots. Put on a wrist strap.
Page 602 8-236 Card replacement procedures NTRX66 (continued) Although the connectors have voltage present on them, they are insulated. Secure the connectors to the power-connector bundle with a line-tie until it is time to reconnect them. At the front of the MSP Remove the NTRX66 as shown in the following figure.
Page 603 Card replacement procedures 8-237 NTRX66 NTRX66 (continued) (end) At the rear of the MSP Locate the replaced circuit card and reattach the connectors, as noted in step 5. Send any faulty cards for repair according to local procedure. Record the date the card was replaced, the serial number of the card, and the symptoms that prompted replacement of the card.
Page 604: Replacing A Card
8-238 8-238 Common card replacement procedures 8-238 Replacing a card Application Use this procedure to unseat, remove, and reseat cards. Action The following flowchart is a summary of the procedure. To replace the card, use the instructions in the step-action procedure that follows the flowchart. 297-8211-550 Standard 05.01 August 1999...
Page 605 Common card replacement procedures 8-239 Replacing a card (continued) Summary of Replacing a card This flowchart summarizes the Locate the procedure. defective card Use the instructions in the procedure that follows this flowchart to perform the Remove the procedure. defective card Insert the replacement card...
Page 606 8-240 Common card replacement procedures Replacing a card (continued) Replacing a card At your Current Location Proceed only if you have been directed to this procedure from a step in a maintenance procedure. Using this procedure independently may cause equipment damage or loss of service. WARNING Static electricity damage Wear a wrist strap connected to the wrist strap...
Page 607 Common card replacement procedures 8-241 Replacing a card (continued) WARNING Do not hold card by levers only Holding a card only by the levers may result in lever breakage. After the card has been pulled halfway out of the shelf, carefully grasp the card underneath for more secure support and continue to remove the card from the shelf.
Page 608 8-242 Common card replacement procedures Replacing a card (continued) Open the locking levers on the replacement card. Align the card with the slots in the shelf and gently slide the card into the shelf. WARNING Improper insertion may damage circuit packs Do not apply direct pressure to the components.
Page 609 Common card replacement procedures 8-243 Replacing a card Replacing a card (end) (continued) Close the locking levers. You have completed this procedure. Return to the main procedure that sent you to this procedure and continue as directed. DMS-100 Family OPAC Maintenance Manual XPM12 and up...
Page 610: Replacing A Line Card
8-244 8-244 Common card replacement procedures 8-244 Replacing a line card Application Use this procedure to unseat, remove, and reseat line cards if you have been directed from a maintenance procedure. Action The following flowchart is a summary of the procedure. To replace the card, use the instructions in the step-action procedure that follows the flowchart.
Page 611 Common card replacement procedures 8-245 Replacing a line card (continued) Summary of Replacing a line card Locate the This flowchart summarizes the defective line procedure. card Use the instructions in the procedure that follows this flowchart to perform the Remove the procedure.
Page 612 8-246 Common card replacement procedures Replacing a line card (continued) Replacing a line card At your current location: Proceed only if you have been directed to this procedure from a step in a maintenance procedure. Using this procedure independently may cause equipment damage or loss of service.
Page 613 1-megohm resistor, to a suitably-grounded object such as a metal workbench or a DMS frame. (Refer to Nortel [Northern Telecom] Corporate Standard 5028.) WARNING Equipment damage...
Page 614 8-248 Common card replacement procedures Replacing a line card (continued) Open the line drawer to prepare to remove the faulty card by following the steps below: Face the drawer shelf and grasp the handle at the bottom of the drawer with the right hand.
Page 615 Common card replacement procedures 8-249 Replacing a line card (continued) Squeeze the handles of the extractor together to grasp the card tightly. Extractor Hold the front cover of the line drawer to steady it with your left hand. Pull the extractor away from the drawer and the card will come unplugged from its socket on the drawer backplane.
Page 616 8-250 Common card replacement procedures Replacing a line card Replacing a line card (end) (continued) Replace the faulty card using the following steps: Remove the replacement card from its ESD container. Slide the card in shroud guide slots toward the drawer backplane. Hold the front cover of the line drawer with your left hand to steady it.
Page 617: Locating And Clearing Opac Trouble
Telephone operating company maintenance personnel already have a basic knowledge of the DMS-100 series of switches and of the OPAC. This section is not for operating company personnel that need exact procedures when they perform maintenance tasks.
Page 619: Trouble Isolation And Correction
10-1 Trouble isolation and correction Description of troubleshooting procedures Basic troubleshooting procedures consist of the following: how to locate and clear faults fault isolation tests diagnostic tests product-specific test tools Performance indicators The first step in how to locate faults is to examine the performance indicators the system normally generates.
Page 620: Locating And Clearing Faults
10-2 Trouble isolation and correction Alarms Audible and visual alarms indicate that correcting action is required. Correct performance of normal system maintenance and use of OMs and logs can decrease the occurrence of alarms. The level of the alarm indicates alarm severity and priority for correcting action.
Page 621: Fault Isolation Tests
Trouble isolation and correction 10-3 Fault isolation tests When the system detects a fault condition in the OPAC, a maintenance action is required. Fault isolation tests determine which component causes the fault. Fault isolation tests determine how to correct the fault condition. Fault isolation tests determine how to report the fault condition to the correct maintenance support organization.
Page 622: Defective Ds-1 Link
10-4 Trouble isolation and correction 3 Operating company personnel can hear the following: — dial tone—when this event occurs, operating company personnel draws dial tone from a 6X17 card. Dial the operator and ask the number you called from. This number is your defective line. —...
Page 623: Load File Mismatch
Trouble isolation and correction 10-5 Load file mismatch To handle a load file mismatch: 1 Post the OPAC. 2 Use the QUERYPM command to display the PM load that resides in the OPAC. 3 Determine correct OPAC PM load. 4 Correct table LCMINV if the table has the wrong PM load for the OPAC.
Page 624 10-6 Trouble isolation and correction P-side interface presence test This test makes sure that DS-1 interface (6X50) cards entered for the LGC or LTC continue to be present. This test is used to prepare the following P-side loop test. The P-side interface test ends when a 6X50 card is detected or removed. At this time, the diagnostic returns a error.
Page 625: Bit Error Rate Performance Testing
Trouble isolation and correction 10-7 If any of these cards are not present, the diagnostic returns a No Resources error message. The diagnostic produces a PM181 log report. P-side interface presence test This test and the speech path diagnostic test are the same. This test makes sure that all LTC P-side links the system tests are present.
Page 626: Xpm Bit Error Ratio Test
10-8 Trouble isolation and correction The user can access the BERP test from the maintenance (MTC) level of the MAP terminal. Commands at the BERP level prepare tests continuously or for a fixed duration. Link testing The BERP testing can occur on the DS-1 links that connect the host controller to the RLCM.
Page 627 Trouble isolation and correction 10-9 XBERT tests Test name Related card XPMDCC NT6X44, NT6X50, NT6X69, NT6X52, NT6X73 XPMBIC NT6X44, NT6X50, NT6X69, NT6X52, NT6X54, NT6X73 The ISOLATE command automatically runs tests to isolate a fault to a specified set of cards. The number of cards in the card list varies from one to three, depending upon the separate test results.
Page 628: Lines Maintenance
10-10 Trouble isolation and correction LCC, NT6X73 The XPMBIC attempts to establish a looparound of the manually specified P-side port at an OPAC BIC to set up a test path. The BIC on which the test loop ends must be manually specified. If the attempt is not successful, a response appears and the test is aborted.
Page 629 Trouble isolation and correction 10-11 The BAL automatically sets the balance network in the line card to provide transmission balance. The BAL provides transmission balance between the four-wire side of the switch and the two-wire loop. Transmission balance minimizes subscriber reports of noise, echo, and garbled speech.
Page 630 10-12 Trouble isolation and correction Line maintenance commands 0 QUIT_ 3 LTP 4 ALT 5 LNSTRBL LNSTRBL 0 Quit 0 Quit 0 Quit 2 Post_ 2 Disp_ 2 Post_ 3 ALTinfo 3 StopDisp 4 ListAlm_ 5 Bsy 6 CreatSet 6 RTS 7 SDiag 7 Diag 8 Diag...
Page 631: Station Testing
Trouble isolation and correction 10-13 Post the failures at the LTP or output reports that the ALT log subsystem generates. This action identifies the lines that do not meet standards of quality to the switch operator. The failures identified are tested manually and corrected.
Page 632 10-14 Trouble isolation and correction ability to query the status of the two previous pretrip options Note: When a new LCM tuple is entered in table LCMINV, the value for LOGS and 4FR are set to DISABLE by default. In response to the command string HELP PRETRIP, the command syntax is displayed at the MAP terminal as follows.
Page 633 Trouble isolation and correction 10-15 For example, to record LINE113 logs for all pretrips detected on all LCMs in the posted set, activate the logs feature by typing >PRETRIP LOGS ENABLE ALL and pressing the Enter key. When a pretrip occurs and the pretrip logs are enabled, a LINE113 log is output.
Page 634 10-16 Trouble isolation and correction The following optional parameters can be entered with either of the previous actions. ALL – This results in the selected action being applied to all LCMs in the posted set. NOWAIT – This option prevents waiting for confirmation that a command has been completed.
Page 635: Product-Specific Test Tools
Trouble isolation and correction 10-17 Product-specific test tools Line maintenance cutover (LMCUT) With feature package NTX057, the Automatic Board to Board Testing (ABBT) feature uses the line maintenance cutover (LMCUT) facility during commissioning. The ABBT uses the LMCUT to transfer or cut over in-service lines from a current switch to a DMS-100 switch.
Page 637: Troubleshooting Chart
11-1 Troubleshooting chart The following table describes the basic troubleshooting procedures for Outside Plant Access Cabinet (OPAC) alarms. OPAC alarm clearing Alarm Possible cause Action condition Critical Defective line Identify and post the system busy (SysB) the LCM. concentrating module (LCM) Busy both units of the defective LCM.
Page 638 11-2 Troubleshooting chart OPAC alarm clearing (continued) Alarm Possible cause Action condition Major Defective LCM Identify and post the in-service trouble (ISTb) LCM. processor Use the command string QUERYPM FLT to identify fault Defective digroup indicators. control card If the LCM is C-side busy (CBsy), identify central-side Defective power (C-side) links to host peripheral module (PM).
Page 639 Troubleshooting chart 11-3 OPAC alarm clearing (continued) Alarm Possible cause Action condition Minor Defective RG Identify and post ISTb the LCM. frequency generator circuit Use the command string QUERYPM FLT to identify fault indicators. Activity mismatch If the LCM is CBsy, identify C-side links to the host PM. Data error Post the host PM for defective P-side links.
Page 641: Advanced Troubleshooting Procedures
12-1 Advanced troubleshooting procedures The system displays a list of cards at the MAP terminal after the tests complete. The card at the top of the list is often the cause of the problem. After you replace the problem card, test the defective unit again. If the unit passes this test, return the unit to service.
Page 642: Powering-Down The Opac
12-2 Advanced troubleshooting procedures 4 List the peripheral module (PM) loads at the input/output (I/O) device used to return the units to service. List the PM loads at the I/O if did not perform this action during the power-up procedure. To list the PM loads, type >DSKUT;LISTVOL volume name ALL and press the Enter key.
Page 643: Common Procedures
Advanced troubleshooting procedures 12-3 Common procedures The following sections provide common troubleshooting procedures for loading, returning to service, dial tone, and ringing generators. Troubleshooting a loading failure The steps for troubleshooting a failure to load the peripheral program files for the LCM in the OPAC are as follows: 1 Verify that no blown fuses are present.
Page 644 12-4 Advanced troubleshooting procedures 9 If unit 0 fails to load, replace the 6X73 (slot 18 of HIE shelf). Replace the 6X50 (slot 20 of HIE shelf) cards. Attempt to load unit 1. 10 If both units fail to load, replace the associated 6X50 cards in the host XPM.
Page 645 Advanced troubleshooting procedures 12-5 k. Enter <r dl> (same as above). This command displays hex values that correspond to control bytes received from the remote. Enter Return two times to halt the display. l. Remove the DS-1 interface card for the link at the remote end. m.
Page 646: Troubleshooting Rts Failure
12-6 Advanced troubleshooting procedures 2 Check for bent pins behind the 6X51, 6X52, 6X53, 6X73, and 6X50 cards. Verify the connector on slot 5 of each shelf on the backplane is tight. 3 If the LCM in the OPAC fails to load, initiate a warm switch activation (SWACT) on the host XPM.
Page 647: Troubleshooting Dial Tone Problems
Advanced troubleshooting procedures 12-7 Troubleshooting dial tone problems Power-up the OPAC. When one or both LCM units are in service, check the line subgroups (LSG) to verify that they have dial tone. If the LSGs do not have dial tone, use the following procedure to troubleshoot the source of dial tone failure.
Page 648 12-8 Advanced troubleshooting procedures 3 Busy one unit at a time. Unseat the 6X51, 6X52, and 6X53 cards and watch for the cycling to stop. This action isolates the trouble to the unit. Replace the 6X51, 6X52, AND 6X53 cards. 4 Reseat the cards in the troubled unit.
Page 649: Opac Routine Maintenance Procedures
13-1 OPAC routine maintenance procedures This section contains routine procedures for the Outside Plant Access Cabinet (OPAC). These procedures cover preventive maintenance tasks performed at regular intervals. Maintenance engineering and field maintenance personnel can use these procedures. DMS-100 Family OPAC Maintenance Manual XPM12 and up...
Page 650: Battery Capacity Test Opac
13-2 13-2 Routine maintenance procedures 13-2 Battery capacity test OPAC Application Use this procedure to check the capacity of Eagle Picher batteries in an outside plant access cabinet (OPAC). The OPAC has a multiline test unit (MTU). Interval Perform this procedure at intervals of six months when MTU measurements comply to specifications.
Page 651 Routine maintenance procedures 13-3 Battery capacity test OPAC (continued) Summary of Battery capacity test This flowchart summarizes the procedure. Use the instructions that follow this flowchart to perform the Disable battery procedure. audit Open circuit strings Measure voltage Voltage is less Disconnect 0, 1, 4, and 5 of each string...
Page 652 13-4 Routine maintenance procedures Battery capacity test OPAC (continued) Battery capacity test At the MAP terminal Make sure extended power failures did not occur at the OPAC site in the last 72 hours. Make sure that the OPAC is not in post-ac failure recovery mode. To access the OPMPES MAP display level, type >MAPCI;MTC;PM;PES and press the Enter key.
Page 653 Routine maintenance procedures 13-5 Battery capacity test OPAC (continued) To open battery string pairs 0 (strings 0 and 4) and 1 (strings 1 and 5), perform the following steps: Type >OPENCKT 0 and press the Enter key. where is the number of battery string 0 and 4 Type >OPENCKT 1 and press the Enter key.
Page 654 13-6 Routine maintenance procedures Battery capacity test OPAC (continued) At the OPAC site WARNING Risk of battery cracking When the measured voltage is less than 49 V, disconnect the battery string. If you do not disconnect the battery string, the batteries can crack before you can install new batteries.
Page 655 Routine maintenance procedures 13-7 Battery capacity test OPAC (continued) Type >LOADB 1 and press the Enter key. where is battery string pair 1 Open battery string pair 2 (strings 2 and 6), type >OPENCKT 2 and press the Enter key. where is the battery string pair 2 Example of a MAP display:...
Page 656 13-8 Routine maintenance procedures Battery capacity test OPAC (continued) At the OPAC site: WARNING Risk of battery cracking Disconnect the battery string. If you do not disconnect the battery string, the batteries can crack before you can install new batteries. Replace the pair of batteries as soon as possible.
Page 657 Routine maintenance procedures 13-9 Battery capacity test Battery capacity test OPAC OPAC (continued) (end) This inspection procedure is complete. Note: If an ac failure lasts more than 5 min during this procedure, repeat the full procedure. DMS-100 Family OPAC Maintenance Manual XPM12 and up...
Page 658: Battery Inspection And Cleaning Opac
13-10 13-10 Routine maintenance procedures 13-10 Battery inspection and cleaning OPAC Application Use this procedure to inspect and clean the batteries in an outside plant access cabinet (OPAC). Interval Perform this procedure every six months. Common procedures There are no common procedures. Action This procedure contains a summary flowchart that provides an overview of the procedure.
Page 659 Routine maintenance procedures 13-11 Battery inspection and cleaning OPAC (continued) Summary of battery inspection and cleaning This flowchart summarizes the Inspect battery procedure. packs, connectors, and shelves Use the instructions that follow this flowchart to perform the procedure. Are there signs of End of procedure moisture or...
Page 660 13-12 Routine maintenance procedures Battery inspection and cleaning OPAC (continued) Battery inspection and cleaning At the OPAC site DANGER Hazardous chemicals Battery chemicals can be dangerous and potentially explosive. Use caution. Inspect battery packs, connectors, floor, and shelves for moisture or corrosion. If moisture or corrosion is present step 2...
Page 661 Routine maintenance procedures 13-13 Battery inspection and cleaning OPAC (continued) To open the circuit to the battery strings to replace, type >OPENCKT n and press the Enter key. where is the string pair 0–2, as follows: is pair 0, 4 is pair 1, 5 is pair 2, 6 Example of a MAP display:...
Page 662 13-14 Routine maintenance procedures Battery inspection and cleaning OPAC (continued) At the OPAC site WARNING Possible system damage You can add or remove battery strings from an active OPAC. If you perform this action make sure the battery strings are in the open circuit state from the MAP terminal.
Page 663 Routine maintenance procedures 13-15 Battery inspection and cleaning Battery inspection and cleaning OPAC OPAC (continued) (end) At the MAP terminal To return the battery strings to the load bus, type >LOADB n and press the Enter key. where is the string pair 0–2, as follows: is pair 0, 4 is pair 1, 5 is pair 2, 6...
Page 664: Battery Replacement Opac
13-16 13-16 Routine maintenance procedures 13-16 Battery replacement OPAC Application Use this procedure to replace batteries in an outside plant access cabinet (OPAC). Interval Follow this procedure when you perform one of the following operations: install the OPAC replace battery strings for maintenance add battery strings remove batteries for cleaning Common procedures...
Page 665 Routine maintenance procedures 13-17 Battery replacement OPAC (continued) Summary of battery replacement Post OPMPES This flowchart summarizes the for the affected procedure. OPAC Use the instructions in the procedure that follows this flowchart to perform the Remove and Disable the procedure.
Page 666 13-18 Routine maintenance procedures Battery replacement OPAC (continued) Battery replacements At the MAP terminal To access the OPMPES MAP display level, type >MAPCI;MTC;PM;PES and press the Enter key. To post the alarm state, type >POST alarm_state and press the Enter key. where alarm_state is RED, AMBER, GREEN.
Page 667 Routine maintenance procedures 13-19 Battery replacement OPAC (continued) To open the circuit to the battery strings to replace, type >OPENCKT n and press the Enter key. where is the string pair 0–2, as follows: is pair 0,4 is pair 1,5 is pair 2,6 Example of a MAP display: Trks...
Page 668 13-20 Routine maintenance procedures Battery replacement OPAC (continued) At the OPAC site WARNING Possible system damage When you add or remove battery strings from an active OPAC, make sure the battery strings are in the open circuit state. Check the state of the battery strings at the MAP terminal.
Page 669 Routine maintenance procedures 13-21 Battery replacement OPAC (continued) Install and interconnect the battery strings. Refer to the following figure for battery arrangement. Cabinet front Door batteries Cabinet rear Battery arrangement String 0 String 1 String 2 String 4 String 5 Battery cabinet, rear view String 6 Connect the battery string installed in step 7 to the connector cable assembly.
Page 670 13-22 Routine maintenance procedures Battery replacement Battery replacement OPAC OPAC (continued) (end) At the MAP terminal To return the battery strings to the load bus, type >LOADB n and press the Enter key. where is the string pair 0–2, as follows: is pair 0,4 is pair 1,5 is pair 2,6...
Page 671: Ground Check Opac
13-23 Routine maintenance procedures 13-23 13-23 Ground check OPAC Application Check outside plant access cabinet (OPAC) system ground connections and measure ground resistance. Interval Perform this procedure according to local policy. Common procedures There are no common procedures. Action This procedure contains a summary flowchart and a list of steps. Use the flowchart to review the procedure.
Page 672 13-24 Routine maintenance procedures Ground check OPAC (continued) Summary of ground check This flowchart summarizes the Check system procedure. grounds Use the instructions in the procedure that follows this flowchart to perform the Contact the next Are grounds procedure. level of defective? maintenance Measure ground...
Page 673 Routine maintenance procedures 13-25 Ground check Ground check OPAC OPAC (continued) (end) Ground check At your Current Location Check system grounds. If grounds are in good condition step 2 are damaged step 3 Use local approved methods to measure ground resistance. The resistance for 25 Ω.
Page 674: Discharge Test Failure Opac
13-26 13-26 Routine maintenance procedures 13-26 Discharge test failure OPAC Application Use this procedure after a discharge test failure to determine if you must replace outside plant access cabinet (OPAC) batteries. Interval Perform this procedure after each discharge test failure. Common procedures There are no common procedures.
Page 675 Routine maintenance procedures 13-27 Discharge test failure OPAC (continued) Summary of discharge test failure This flowchart summarizes the Disable battery audit. procedure. Use the instructions that follow this flowchart to perform the procedure. Check log report PES117 to determine which battery string fails test.
Page 676 13-28 Routine maintenance procedures Discharge test failure Discharge test failure OPAC OPAC (continued) (end) Discharge test failure At the MAP terminal To access the OPMPES MAP display level, type >MAPCI;MTC;PM;PES and press the Enter key. To post the appropriate alarm state, type >POST alarm_state and press the Enter key.
Page 677: Door Alarm Test Opac
13-29 Routine maintenance procedures 13-29 13-29 Door alarm test OPAC Application Use this procedure to test the door alarm in an outside plant access cabinet (OPAC). Interval Perform this procedure every time you visit the cabinet. Common procedures There are no common procedures. Action This procedure contains a summary flowchart and a list of terms.
Page 678 13-30 Routine maintenance procedures Door alarm test OPAC (continued) Summary of door alarm test Access the This flowchart summarizes the OPMPES level of procedure. the MAP display Use the instructions that follow this flowchart to perform the procedure. Post the alarm Open the front or rear door Is door alarm...
Page 679 Routine maintenance procedures 13-31 Door alarm test OPAC (continued) Door alarm test At the MAP terminal To access the OPMPES level of the MAP terminal, type >MAPCI;MTC;PM;PES and press the Enter key. To post the correct alarm state, type >POST alarm_state and press the Enter key.
Page 680 13-32 Routine maintenance procedures Door alarm test OPAC (continued) At the MAP terminal Make sure that the system generates a door alarm at the MAP terminal. Example of a MAP display: Trks Appl OPMPES SysB ManB OffL CBSY ISTB InSV 0 Quit 2 Post_ AMBER...
Page 681 Routine maintenance procedures 13-33 Door alarm test OPAC (continued) At the OPAC site Press the door switch and check the cancelation of the door alarm. Fuse panels Air induction roof Door switch Filler panel PO747175 Rectifiers Cooling unit Cooling unit Termination Bay 0 Bay 1...
Page 682 13-34 Routine maintenance procedures Door alarm test Door alarm test OPAC OPAC (continued) (end) If the alarm clears step 7 does not clear step 6 Contact your maintenance support group. This procedure is complete. 297-8211-550 Standard 05.01 August 1999...
Page 683: Dust Removal Opac
13-35 Routine maintenance procedures 13-35 13-35 Dust removal OPAC Application Use this procedure to remove dust in an outside plant access cabinet (OPAC). Interval Perform this procedure every six months. Common procedures There are no common procedures. Action This procedure contains a summary flowchart and a list of steps. Use the flowchart to review the procedure.
Page 684 13-36 Routine maintenance procedures Dust removal OPAC (continued) Summary of dust removal This flowchart summarizes the procedure. Use brushless motor vacuum to Use the instructions that follow clean OPAC this flowchart to perform the procedure. End of procedure 297-8211-550 Standard 05.01 August 1999...
Page 685 Routine maintenance procedures 13-37 Dust removal Dust removal OPAC OPAC (continued) (end) Dust removal At the OPAC site CAUTION Possible service degradation due to electrical interference Series-wound motors cause electromagnetic interference. Vacuum OPAC frames to prevent the increase of electrostatic discharges that dust causes.
Page 686: Fan Cleaning And Testing Opac
13-38 13-38 Routine maintenance procedures 13-38 Fan cleaning and testing OPAC Application Use this procedure to test the fan functioning in an Outside Plant Access Cabinet (OPAC). Interval Perform this procedure when local policy directs. Common procedures There are no common procedures. Action This procedure contains a summary flowchart as an overview of the procedure.
Page 687 Routine maintenance procedures 13-39 Fan cleaning and testing OPAC (continued) Summary of fan cleaning and testing This flowchart summarizes the Open doors procedure. and swing frames out Use the instructions that follow this flowchart to perform the procedure. Turn off fans Remove the fan grills and screws...
Page 688 13-40 Routine maintenance procedures Fan cleaning and testing Fan cleaning and testing OPAC OPAC (continued) (end) Fan cleaning and testing At the OPAC site To turn off the fans, remove fan fuses F1 – F4 in slot 8 and F1 – F6 in slot 9 of the MSP.
Page 689: Fan Alarm Test Opac
13-41 Routine maintenance procedures 13-41 13-41 Fan alarm test OPAC Application Use this procedure to test the fan alarms in an outside plant access cabinet (OPAC). Interval Perform this procedure when local policy directs you to. Common procedures There are no common procedures. Action This procedure contains a summary flowchart as an overview of the procedure.
Page 690 13-42 Routine maintenance procedures Fan alarm test OPAC (continued) Summary of fan alarm test This flowchart summarizes the Remove power procedure. from one fan Use the instructions that follow this flowchart to perform the procedure. Insert dowel and repower fan Have all fans End of Check MAP display...
Page 691 Routine maintenance procedures 13-43 Fan alarm test OPAC (continued) Fan alarm test At the OPAC site To turn off one of the fans, remove a fan fuse, F1 – F4 in slot 8 and F1 – F6 in slot 9 of the MSP. Note: The air pressure that other fans create can start the fan to spin backwards.
Page 692 13-44 Routine maintenance procedures Fan alarm test Fan alarm test OPAC OPAC (continued) (end) The procedure is complete. 297-8211-550 Standard 05.01 August 1999...
Page 693 13-45 Routine maintenance procedures 13-45 13-45 Fan filter replacement, air induction roof OPAC Application Use this procedure to replace Outside Plant Access Cabinet (OPAC) fan filters in the air induction roof. Interval Perform this procedure as often as every two months, but at least every six months.
Page 694: Fan Filter Replacement, Air Induction Roof Opac
13-46 Routine maintenance procedures Fan filter replacement, air induction roof OPAC (continued) Summary of fan filter replacement, air induction roof This flowchart summarizes the procedure. Open all cabinet Use the instructions that follow doors this flowchart to perform the procedure. Turn off fans Open fan filter covers (front and rear)
Page 695 Cross-section of air induction roof with filter Remove and discard both old fan filters. ATTENTION Use only Nortel replacement filters to ensure the environmental properties of the OPAC cabinet system. Order and use the correct air filter kit, part number A0391171 Install new fan filters and close hinged filter covers.
Page 696: Fuse Replacement Opac
13-48 13-48 Routine maintenance procedures 13-48 Fuse replacement OPAC Application Use this procedure to replace fuses in the outside plant access cabinet (OPAC). Interval Perform this procedure as needed. When one of the OPAC fuses has blown and needs replacement, a modular supervisory panel (MSP) alarm displays. This alarm displays on the MAP terminal under the FSP header.
Page 697 Routine maintenance procedures 13-49 Fuse replacement OPAC (continued) Summary of fuse replacement This flowchart summarizes the Perform a visual procedure. inspection of the fuses Use the instructions that follow this flowchart to perform the procedure. Replace fuse End of procedure DMS-100 Family OPAC Maintenance Manual XPM12 and up...
Page 698 13-50 Routine maintenance procedures Fuse replacement Fuse replacement OPAC OPAC (continued) (end) Fuse replacement At the OPAC site Perform a visual inspection of the fuses at the top of bay 0. Perform a visual inspection of the MSP of the OPAC. Failed fuses have a colored button extended out of the fuse.
Page 699: Gfci Check Opac
13-51 Routine maintenance procedures 13-51 13-51 GFCI check OPAC Application Use this procedure to make sure the ground fault circuit interrupt (GFCI) for outside plant access cabinet (OPAC) operates correctly. Interval Perform this procedure before you use the outlets that have GFCI in the OPAC.
Page 700 13-52 Routine maintenance procedures GFCI check OPAC (continued) Summary of GFCI check This flowchart summarizes the Press the test procedure. button on the GFCI outlet Use the instructions in the procedure that follows this flowchart to perform the procedure. Contact the next Reset button level of pops out?
Page 701 Routine maintenance procedures 13-53 GFCI check GFCI check OPAC OPAC (continued) (end) GFCI check At the OPAC site Press the test button on the GFCI outlet. Check if the reset button pops out. If the reset button pops out step 3 does not pop out step 4 Press the reset button.
Page 702 13-54 13-54 Routine maintenance procedures 13-54 High temperature alarm test OPAC Application Use this procedure to test the high temperature alarm in an OPAC. Interval Perform this procedure when local policy directs you to this procedure. Common procedures There are no common procedures. Action This procedure contains a summary flowchart and a list of steps.
Page 703: High Temperature Alarm Test Opac
Routine maintenance procedures 13-55 High temperature alarm test OPAC (continued) Summary of high temperature alarm test This flowchart summarizes the Heat high procedure. temperature sensor Use the instructions that follow this flowchart to perform the procedure. Contact the next level System generates an of maintenance alarm?
Page 704 13-56 Routine maintenance procedures High temperature alarm test OPAC (continued) High temperature alarm test At the OPAC site To activate the high temperature alarm, blow hot air from a heat gun or a blow-dryer at the high temperature sensor. Refer to the following figures for the locations of the high temperature alarm sensors in the air induction roof.
Page 705 Routine maintenance procedures 13-57 High temperature alarm test High temperature alarm test OPAC OPAC (continued) (end) The procedure is complete. DMS-100 Family OPAC Maintenance Manual XPM12 and up...
Page 706: Heaters Test Opac
13-58 13-58 Routine maintenance procedures 13-58 Heaters test OPAC Application Use this procedure to test the heaters in an outside plant access cabinet (OPAC). Interval Perform this procedure every 12 months. Common procedures There are no common procedures. Action This procedure contains a summary flowchart and a list of steps. Use the flowchart to review the procedure.
Page 707 Routine maintenance procedures 13-59 Heaters test OPAC (continued) Summary of heaters test This flowchart summarizes the Cool low procedure. temperature sensor Use the instructions that follow this flowchart to perform the procedure. Contact the next Do heating level of elements warm? maintenance End of procedure DMS-100 Family OPAC Maintenance Manual XPM12 and up...
Page 708 13-60 Routine maintenance procedures Heaters test OPAC (continued) Heaters test At the OPAC Use a cooling spray to cool the low temperature sensor. Refer to the following figure for sensor location. Heating elements Fan thermostat Rear Front Low temperature alarm GFCI outlet Ground bar Low temperature sensor...
Page 709 Routine maintenance procedures 13-61 Heaters test Heaters test OPAC OPAC (continued) (end) Refer to the previous figure for the location of the heating elements on the backplane of the electrical compartment. The heaters must be warm. If the heating elements warm step 4 do not warm...
Page 710: Low Temperature Alarm Test Opac
13-62 13-62 Routine maintenance procedures 13-62 Low temperature alarm test OPAC Application Use this procedure to test the low temperature alarm in an outside plant access cabinet (OPAC). Interval Perform this procedure every 12 months. Common procedures There are no common procedures. Action This procedure contains a summary flowchart and a list of steps.
Page 711 Routine maintenance procedures 13-63 Low temperature alarm test OPAC (continued) Summary of low temperature alarm test This flowchart summarizes the Cool low procedure. temperature sensor Use the instructions that follow this flowchart to perform the procedure. Contact Does system maintenance generate alarm? support End of procedure...
Page 712 13-64 Routine maintenance procedures Low temperature alarm test OPAC (continued) Low temperature alarm test At the OPAC site To select and activate the low temperature alarm, blow cooling liquid on the low temperature alarm. See the following figure for the location of the low temperature alarm.
Page 713 Routine maintenance procedures 13-65 Low temperature alarm test Low temperature alarm test OPAC OPAC (continued) (end) At the MAP terminal Verify that the system generates the alarm. If the system generates the alarm step 4 does not generate the alarm step 3 Contact your maintenance support group.
Page 714: Lubricate Door Hinges Opac
13-66 13-66 Routine maintenance procedures 13-66 Lubricate door hinges OPAC Application Use this procedure to lubricate the door hinges of an outside plant access cabinet (OPAC). Interval Perform this procedure every 4 months or according to local policy. Common procedures There are no common procedures.
Page 715 Routine maintenance procedures 13-67 Lubricate door hinges OPAC (continued) Summary of lubricate door hinges This flowchart summarizes the Lubricate the procedure. door hinges Use the instructions that follow this flowchart to perform the procedure. End of procedure DMS-100 Family OPAC Maintenance Manual XPM12 and up...
Page 716 13-68 Routine maintenance procedures Lubricate door hinges Lubricate door hinges OPAC OPAC (continued) (end) Lubricate door hinges At the OPAC site Use the lubricant that local policy dictates to lubricate the door hinges. The procedure is complete. 297-8211-550 Standard 05.01 August 1999...
Page 717: Open-Circuit Test Failure Opac
13-69 Routine maintenance procedures 13-69 13-69 Open-circuit test failure OPAC Application Use this procedure after an open-circuit test failure to determine if outside plant access cabinet (OPAC) batteries need replacement. Interval Perform this procedure after every open-circuit test failure. Common procedures There are no common procedures.
Page 718 13-70 Routine maintenance procedures Open-circuit test failure OPAC (continued) Summary of open–circuit test failure This flowchart summarizes the procedure. Access the PES level Use the instructions that follow of the MAP this flowchart to perform the procedure. Post the OPAC identified in the PES117 log Disable...
Page 719 Routine maintenance procedures 13-71 Open-circuit test failure OPAC (continued) Open circuit test failure At the MAP terminal To access the OPMPES MAP display level, type >MAPCI;MTC;PM;PES and press the Enter key. To post the appropriate alarm, type >POST alarm_state and press the Enter key. where alarm_state is RED, AMBER, GREEN, or OFFL...
Page 720 13-72 Routine maintenance procedures Open-circuit test failure Open-circuit test failure OPAC OPAC (continued) (end) To measure the failed battery string pair voltage, type >MEASURE PAIR n and press the Enter key. where is the number of the string pair (0–2) If voltage compared to OPM_VOLT_TST_CHG is less negative...
Page 721: Paint Touch-Up Opac
13-73 Routine maintenance procedures 13-73 13-73 Paint touch–up Paint touch–up OPAC OPAC Application Use this procedure to touch-up the paint finish on the outside plant access cabinet (OPAC). Interval Perform this procedure as needed. Common procedures There are no common procedures. Action This procedure contains a summary flowchart and a list of steps.
Page 722 13-74 Routine maintenance procedures Paint touch–up OPAC (continued) Summary of paint touch-up This flowchart summarizes the Touch-up paint procedure. finish Use the instructions that follow this flowchart to perform the procedure. End of procedure 297-8211-550 Standard 05.01 August 1999...
Page 723 Routine maintenance procedures 13-75 Paint touch–up Paint touch–up OPAC OPAC (continued) (end) Paint touch–up At the OPAC site Use the correct touch-up paint for the OPAC. If the OPAC is maple brown Use paint kit R0115917. is ivory Use paint kit R0115497. is light green Use paint kit R0115496.
Page 724: Post Charge Test Failure Opac
13-76 13-76 Routine maintenance procedures 13-76 Post charge test failure OPAC Application Use this procedure following an outside plant access cabinet (OPAC) post charge test failure to determine if batteries should be replaced. Interval Perform this procedure after every post charge test failure. Common procedures None Action...
Page 725 Routine maintenance procedures 13-77 Post charge test failure OPAC (continued) Summary of post charge test failure This flowchart summarizes the procedure. Access the PES level Use the instructions in the of the MAP procedure that follows this flowchart to perform the procedure.
Page 726 13-78 Routine maintenance procedures Post charge test failure OPAC (continued) Post charge test failure At the MAP terminal Access the OPMPES MAP display level by typing >MAPCI;MTC;PM;PES and pressing the Enter key. Post the appropriate alarm by typing >POST alarm_state and pressing the Enter key.
Page 727 Routine maintenance procedures 13-79 Post charge test failure Post charge test failure OPAC OPAC (continued) (end) Measure the failed battery string pair voltage by typing >MEASURE PAIR n and pressing the Enter key. where is the number of the string pair (0–2) If voltage compared to OPM_VOLT_TST_CHG is less negative...
Page 728: Rectifier Voltage Check Opac
13-80 13-80 Routine maintenance procedures 13-80 Rectifier voltage check OPAC Application Use this procedure to check the rectifier voltage in an outside plant access cabinet (OPAC) that has an MTU. Interval Perform this procedure during each visit to the cabinet. Common procedures There are no common procedures.
Page 729 Routine maintenance procedures 13-81 Rectifier voltage check OPAC (continued) Summary of rectifier voltage check This flowchart summarizes the Access the procedure. OPMPES level of the MAP display Use the instructions that follow this flowchart to perform the procedure. Post the alarm Disable automatic rotation Perform MEASURE...
Page 730 13-82 Routine maintenance procedures Rectifier voltage check OPAC (continued) Rectifier voltage check At the MAP terminal To access the OPMPES MAP display level, type >MAPCI;MTC;PM;PES and press the Enter key. To post the correct alarm, type >POST alarm_state and press the Enter key. where alarm_state is RED, AMBER, GREEN, or OFFL...
Page 731 Routine maintenance procedures 13-83 Rectifier voltage check Rectifier voltage check OPAC OPAC (continued) (end) To return the BCC driver to service, type >RTS BCCDVR and press the Enter key. To enable the automatic battery rotation, type >AUDIT ENABLE and press the Enter key. This procedure is complete.
Page 732: Rectifier Replacement Opac
13-84 13-84 Routine maintenance procedures 13-84 Rectifier replacement OPAC Application Use this procedure to replace a rectifier in an outside plant access cabinet (OPAC). Interval Perform this procedure as required. Common procedures There are no common procedures. Action This procedure contains a summary flowchart and a list of steps. Use the flowchart to review the procedure.
Page 733 Routine maintenance procedures 13-85 Rectifier replacement OPAC (continued) Summary of rectifier replacement This flowchart summarizes the procedure. Switch appropriate circuit breaker CB1 Use the instructions in the RECT-0, CB2 RECT-1, procedure that follows this CB3 RECT-2, rectifier flowchart to perform the breaker to OFF procedure.
Page 734 13-86 Routine maintenance procedures Rectifier replacement Rectifier replacement OPAC OPAC (continued) (end) Rectifier replacement At the OPAC site Switch the appropriate circuit breaker, CB1 RECT-1, CB2 RECT-2, or CB3 RECT-3 circuit breaker in the electrical compartment with attached power pedestal to OFF. Set the ac and dc breakers on the front face of the rectifier to OFF.
Page 735: Wrist Strap Grounding Cords Test Opac
13-87 Routine maintenance procedures 13-87 13-87 Wrist strap grounding cords test OPAC Application Use this procedure to test the resistance of the wrist strap grounding cords. Check that the resistance is low enough to allow static electricity to discharge from the body of the user. Resistance must be high enough to prevent electrocution of the user if the equipment develops a short-circuit.
Page 736 13-88 Routine maintenance procedures Wrist strap grounding cords test OPAC (continued) Summary of testing wrist strap grounding cords This flowchart summarizes the Remove cord procedure. from wrist strap Use the instructions in the procedure that follows this flowchart to perform the Measure procedure.
Page 737 Routine maintenance procedures 13-89 Wrist strap grounding cords test Wrist strap grounding cords test OPAC OPAC (continued) (end) Wrist strap grounding cords test At the OPAC site Remove the grounding cord from the wrist strap. DANGER Risk of electrocution The grounding cord is safe to use only if the resistance of the cord measures higher than 800 kilohms.
Page 738: Fan Replacement, Internal Fans Opac
13-90 13-90 Routine maintenance common procedures 13-90 Fan replacement, internal fans OPAC Application Use this procedure to replace defective fans in the air induction roof or the heat exchanger roof. You can access from inside the Outside Plant Access Cabinet (OPAC). Interval Perform this procedure when local policy directs you to.
Page 739 Routine maintenance common procedures 13-91 Fan replacement, internal fans OPAC (continued) Summary of fan replacement, internal fans Remove the fan This flowchart summarizes the grill and screws procedure. Use the instructions that follow this flowchart to perform the procedure. Disconnect fan from the fan wiring harness Remove replace...
Page 740 13-92 Routine maintenance common procedures Fan replacement, internal fans Fan replacement, internal fans OPAC OPAC (continued) (end) Summary of fan replacement, internal fans At your Current Location Proceed only if a step in a maintenance procedure directs you to this procedure.
Page 741: Rectifier Voltage Adjustment Opac
13-93 Routine maintenance common procedures 13-93 13-93 Rectifier voltage adjustment OPAC Application Use this procedure to adjust the rectifier voltage in an OPAC equipped with a multiline test unit (MTU). Interval Perform this procedure according to local policy. Common procedures There are no common procedures.
Page 742 13-94 Routine maintenance common procedures Rectifier voltage adjustment OPAC (continued) Summary of rectifier voltage adjustment This flowchart summarizes the procedure. Adjust rectifier to correct Use the instructions that follow voltage this flowchart to perform the procedure. Perform MEASURE Measure the Voltage is LOADB from MAP rectifier voltage...
Page 743 Routine maintenance common procedures 13-95 Rectifier voltage adjustment OPAC (continued) Rectifier voltage adjustment At your Current Location Proceed if a step in a maintenance procedure directs you to this procedure . Separate use of this procedure can cause equipment damage or service interruption.
Page 744 13-96 Routine maintenance common procedures Rectifier voltage adjustment Rectifier voltage adjustment OPAC OPAC (continued) (end) At the MAP terminal To access the OPMPES MAP display level, type >MAPCI;MTC;PM;PES and press the Enter key. To post the appropriate alarm, type >POST alarm_state and press the Enter key.
Page 745: Site Test Opac
13-97 Routine maintenance common procedures 13-97 13-97 Site test OPAC Application Use this procedure to perform outside plant access cabinet (OPAC) site tests for battery strings that failed automatic tests. Interval Perform this procedure as local policy directs. Common procedures There are no common procedures.
Page 746 13-98 Routine maintenance common procedures Site test OPAC (continued) Summary of site test This flowchart summarizes the Measure rectifier procedure. voltage Use the instructions that follow this flowchart to perform the procedure. Rectifier voltage is less than 52.5 V, 0.5 V? Any battery Adjust rectifier more than 1 V...
Page 747 Routine maintenance common procedures 13-99 Site test OPAC (continued) Site test At your Current Location Only proceed when the maintenance procedure directed you to this procedure. Independent use of this procedure can damage equipment or interrupt service. At the MAP terminal Make sure that the previous procedure has the correct OPAC posted.
Page 748 13-100 Routine maintenance common procedures Site test OPAC (continued) At the MAP terminal Measure the voltage of each battery in the failed battery string. If the voltage of any battery is more than 1 V less than the voltage of the other batteries in the string, replace the complete string.
Page 749 Routine maintenance common procedures 13-101 Site test Site test OPAC OPAC (continued) (end) At the MAP terminal To busy and return to service the BCCDVR, type >BSY BCCDVR and press the Enter key. >RTS BCCDVR and press the Enter key. To enable the automatic battery rotation and testing, type >AUDIT ENABLE and press the Enter key.
Page 751: Index
14-1 Index automatic maintenance 1-35, 2-35, 2-39 components Abandon line state 3-16 ESA REX test 1-72 ac outlets 2-14 Fault indicators 1-73 illustration of 2-2 LCM REx tests, extended 1-69 air induction roof Line concentrating module REX 1-73 ceiling fans, illustration of 2-13 manual commands REX 1-72 description of 2-11 REX maintenance records 1-75...
Page 752 14-2 Index billing function 1-32 XLCM processor 1-8 binding post connector option, illustration 2-10 LTC, optional, messaging card 3-7 bipolar variation. See BpV OPMPES 2-37 bit error rate performance. See BERP Replacing 8-238 BIX 2-6, 2-8 connector option, illustration 2-9 digital 4–channel receiver 3-7 BpV 1-34, 1-36 Group CODEC DMS–100/200 1-27...
Page 753 Index 14-3 NT8X02 8-171 HIE 2-29 NTMX45 8-175 LCM 2-30 NTRX41 8-186 RMM 2-30 NTRX42 8-192 control data, LCC 1-31 NTRX43 8-212 CPB 3-13 NTRX44 8-220 CPB line state 3-17 NTRX66 8-232 current demand, line drawer 2-30 card shelf position, RMM 1-27 current demand, example 2-29 channel configuration 3-22 channel structure in OPAC 1-24...
Page 754 14-4 Index DS30A ports 1-20 testing 13-38 Dust, removing 13-35 Fan alarm, testing 13-41 fans, internal, replacing 13-90 fans, air induction roof 2-12 illustration of 2-13 electrical compartment 2-3 fault conditions 1-33, 2-35, 3-28 illustration of 2-4 fault isolation tests 10-1 electrical system 2-14 fault locating and clearing 10-1 electronics compartment 2-1...
Page 755 Index 14-5 host interface equipment. See HIE line card types 1-12 line concentrating array (LCA), block diagram, il- lustration 1-17 line drawer Idle line state 3-16 circuit card location 1-9 in-service test. See InSv test fault 1-34 InSv tests 1-54 fault correction 10-3 intake fans, illustration of 2-13 states 1-10...
Page 756 14-6 Index manual line testing 10-13 NTRX42, card replacement procedures 8-192 manual maintenance 1-75, 3-33 NTRX43, card replacement procedures 8-212 MBS 3-21 NTRX44, card replacement procedures 8-220 MDC 3-4 NTRX66, card replacement procedures 8-232 customer group services 3-21 line types 3-21 Meridian business set.
Page 757 Index 14-7 trouble locating and clearing 9-1 pulse code modulation. See PCM outside plant termination and service protection compartment. See termination compartment overload QUERYPM command 1-37, 2-27 resources 1-37 QUERYPM FLT command 1-37, 1-56, 1-62 state 1-37 RAM diagnostic test 3-33 P-phone line card 15KFT 1-13 receiver off-hook tone 1-32 P-side link diagnostic 10-5...
Page 758 14-8 Index illustration of 1-27 subscriber services 3-21 shelf, illustration of 3-9 subscriber tones 1-32 ROM diagnostic test 3-33 SUPPRESS command 1-64 roof, air induction, description of 2-11 surge arrestor 2-14 roof, heat exchanger, description of 2-11 SysB line state 3-16 routine exercise.
Page 759 Index 14-9 tone and clock card, ESA 3-25 VF module assembly 2-6 tones, during ESA mode 3-27 translations, ESA 3-19 troubleshooting 10-1 warble 1-32 a loading failure 12-3 world line card 1-63 dial tone problems 12-7 wrist strap grounding cords, testing 13-87 ring generator 12-7 RTS failure 12-6 TST 3-13...
Page 762 Except as expressly authorized in writing by Nortel Networks, the holder is granted no rights to use the information contained herein. Information is subject to change without notice. Nortel...

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