Page 1 Critical Release Notice Publication number: 297-8361-550 Publication release: Standard 04.02 The content of this customer NTP supports the SN07 (DMS) and ISN07 (TDM) software releases. Bookmarks used in this NTP highlight the changes between the XPM14 baseline and the current release.
Page 2 Publication History December 2004 Standard release 04.02 for software release ISN07 (TDM)/SN07 (DMS). Modified Chapter 1, Chapter 2 and Chapter 4 for CR Q00945446.
Page 3 297-8361-550 DMS-100 Family Outside Plant Module OPM Maintenance Manual XPM14 and up Standard 04.01 September 2000...
Page 5 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. Changes or modiﬁcation to the DMS-100 without the express consent of Nortel Networks may void its warranty and void the users authority to operate the equipment.
Page 7: Table Of Contents
Contents OPM Maintenance Manual 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...
Page 8 iv Contents Normal battery rotation mode 1-39 Rotation disabled mode 1-46 ac failure mode 1-47 Increase to manual maintenance 1-48 Manual testing OPM systems 1-48 Manual battery actions and system voltage measurements 1-49 Querying PES alarms 1-51 On-site outside maintenance 1-54 Battery electrical inspection 1-55 Rectifier voltage adjustments LTU check 1-55 Battery capacity tests 1-56...
Page 9 Contents v PRLCM overview PRLCM configuration 3-1 International line concentrating module 3-3 Host interface equipment shelf 3-3 Remote maintenance module 3-8 Frame supervisory panel 3-9 Emergency stand alone description 3-10 ESA hardware representation 3-11 ESA operation 3-12 ESA hardware 3-13 Intracalling during ESA mode 3-14 ESA call processing 3-14 Channel configuration 3-14...
Page 10 vi Contents Host interface equipment 5-3 Frame supervisory panel 5-4 Additional OPM components 5-4 HIE components 5-4 Remote maintenance module 5-4 OPM configuration 5-5 OPM cabinet 5-5 OPM hardware components 5-6 Battery control unit 5-6 Environmental control unit 5-7 Rectifier system 5-7 Cable-connecting compartment 5-7 Additional OPM components 5-8 Calibration device 5-8...
Page 11 Contents vii NT6X18 in an OPM 8-93 NT6X19 in an OPM 8-97 NT6X20 in an OPM 8-101 NT6X21 in an OPM 8-105 NT6X27 in an OPM HIE 8-109 NT6X36 in an OPM 8-116 NT6X45 in an OPM HIE 8-121 NT6X47 in an OPM HIE 8-127 NT6X50 in an OPM HIE 8-133 NT6X51 in an OPM 8-140 NT6X52 in an OPM 8-147...
Page 12 viii Contents Troubleshooting chart 11-1 Advanced troubleshooting procedures 12-1 Powering-up the OPM 12-1 Powering-down the OPM 12-3 Common procedures 12-3 Troubleshooting a loading failure 12-4 Troubleshooting RTS failure 12-6 Troubleshooting dial tone problems 12-7 Troubleshooting ringing generator problems 12-8 OPM routine maintenance procedures 13-1 Battery capacity tests OPM 13-2 Battery, physical inspection OPM 13-10...
Page 13: About This Document
About this document When to use this document This Outside Plant Module Module (OPM) maintenance reference manual provides: overview, signaling, and hardware information for understanding the OPM product and operation; recovery procedure for returning to service an OPM from a completely out-of-service condition; alarm clearing procedures for clearing an OPM alarm condition at the MAP display terminal;...
Page 14: References In This Document
organized, check the release information in Product Documentation Directory, 297-8991-001. References in this document The following documents are referred to in this document: • DMS-100 Provisioning Manual and Operational Measurements Reference Manual • Operational Measurements Reference Manual • Extended Peripheral Module Translations Reference Manual What precautionary messages mean The types of precautionary messages used in NT documents include attention boxes and danger, warning, and caution messages.
Page 15: How Commands, Parameters, And Responses Are Represented
WARNING - Possibility of equipment damage 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: Responses
Responses Responses correspond to the MAP display and are shown in a different type: FP 3 Busy CTRL 0: Command request has been submitted. FP 3 Busy CTRL 0: Command passed. 297-8361-550 Standard 04.01 September 2000...
Page 17: Opm Maintenance Summary
1 OPM maintenance summary Description The Outside Plant Module (OPM) is a reconfigured Remote Line Concentrating Module (RLCM) packaged in an environmentally controlled cabinet. The cabinet consists of a main compartment that contains the following components: • RLCM • environmental control unit (ECU) •...
Page 18: Opm Cabinet
1-2 OPM maintenance summary Optional feature packages for intraswitching NTX156AA and emergency stand-alone (ESA) operation NTX154AA are available with the OPM. The OPM is available in two configurations. The configurations are as follows: 1. The OPM-640. This configuration has a 640 subscriber line capacity NT8X01AA, AB, AC.
Page 19: Opm-256 Optional Equipment Shelf
OPM maintenance summary 1-3 Each hinged equipment bay contains three shelves for equipment for a total of six shelves. Four shelves are used for OPM equipment. Refer to the figures “Bay Frame Equipment Configuration, OPM-640 NT8X01AC" and “Bay Frame Equipment Configuration, OPM-256 NT8X01BC". The line concentrating arrays (LCA) that contain the 10 line drawers for the LCM, occupy two shelves.
Page 20 1-4 OPM maintenance summary OPM will operate in the same way except for the additional line cards that are present. The OPM now requires an additional scan card NT0X10 in the RMM in slot 7. The 320-line upgrade kits are as follows: •...
Page 21: Fiber Multiplexer
OPM maintenance summary 1-5 Figure 1 Bay frame equipment configuration, OPM-640 (NT8X01AC) High Bay locking High Door Fuse panels temperature alarm knobs temperature alarm switch LCA – 1 RECT1 RECT0 DS-1 Repeater LCA – 0 Cards BAY 0 BAY 1 Low temp.
Page 22: Channel Bank Option
1-6 OPM maintenance summary Figure 2 Bay frame equipment configuration, OPM-256 (NT8X01BC) High Bay locking High Door Fuse panels temperature alarm knobs temperature alarm switch LCM-C RECT1 RECT0 Empty DS-1 (or optional Repeater Cards equipment) BAY 0 BAY 1 Diffuser Bay locking Diffuser Damper...
Page 23: De-4E Smart Channel Bank
ECU) DE-4E Smart channel bank The DE-4E smart channel bank NT4S42CA is available from Nortel Networks. The DE-4E smart is a 24 channel digital carrier terminal. The DE-4E is used for two-way transmission of voice and data signals over T1, T1C or T2 compatible carrier systems.
Page 24 1-8 OPM maintenance summary Only mount the DE-4E in the optional equipment shelf of the OPM-256. Mounting kits required for the DE-4E Smart channel bank are: • NT0X1980. Use the NT0X1980 kit with an OPM-256 equipped with 4-pin protector blocks. •...
Page 25: Additional Opm Components
OPM maintenance summary 1-9 Figure 4 Bay frame equipment location, OPM-256, (NT8X01BA, BB) High Bay locking High Door Fuse panels temperature alarm knobs temperature alarm switch RECT1 LCM-C RECT0 Empty DS-1 (or optional Repeater equipment) Cards BAY 0 BAY 1 Diffuser Bay locking Diffuser...
Page 26 1-10 OPM maintenance summary figure “Battery Arrangement and Back Wall Components in the OPM Cabinet". Digital Remote Test Unit The DRTU, NT0J42AA, Model 3704, allows a full set of accurate and cost-effective line tests to occur. These tests occur over standard DS-1 or fiber-optic facilities at an OPM remote location.
Page 27 OPM maintenance summary 1-11 Figure 5 Battery arrangement and back wall components in the OPM cabinet Commercial ac power breaker Emergency generator power breaker Calibration device (optional) TB5 power leads Door switch TS5 signal leads A0389314 14-pin power cable and connector Optional third Rack...
Page 28: Environmental Control Equipment
1-12 OPM maintenance summary Environmental control equipment The ECU contains equipment that provides a controlled environment for the OPM. The equipment includes the following items: • air inlets • air filters • fans • heaters • air outlets The ECU consists of the following: •...
Page 29: Environmental Control Operation
OPM maintenance summary 1-13 Environmental control operation The OPM operates at an outside ambient temperature of -40°C to +45°C (-104°F to 113°F). The following services control the cabinet temperature of the OPM: • fans, heaters, and dampers in the ECU •...
Page 30: Electrical System
1-14 OPM maintenance summary Figure 6 OPM thermal control system Exhaust ports Exhaust ports Fans Insulation battery string 0 battery string 4 battery string 1 battery string 5 Batteries Electronic equipment battery string 2 battery string 6 Diffuser filter fans battery string 3 Heater pads and damper...
Page 31 OPM maintenance summary 1-15 • power control unit (PCU) • battery control unit (BCU) • rectifiers • batteries • • OPM grounding network The cabinet requires a standard 30A, single-phase, 208V commercial ac supply. The battery reserve of the OPM consists of: eight strings of Yuasa A037761 or six strings of Eagle-Picher A0386201 batteries.
Page 32 1-16 OPM maintenance summary Power distribution equipment The power distribution equipment includes the following: • two ac breaker panels • one ac distribution panel or PCU • one dc power FSP. ac entrance panels Two ac entrance panels are on the interior back wall row B, bay zero, of the main compartment.
Page 33 OPM maintenance summary 1-17 50A rectifier assembly. This assembly contains one NT5C10BA shelf and two NT5C06CA modular switched mode rectifiers. The rectifiers power the OPM equipment and fans and charge the batteries. Voltage is adjustable from -44V to -56V. The voltage is normally adjusted to -52V for Yuasa A037761 and Eagle-Picher A0386201 batteries.
Page 34 1-18 OPM maintenance summary Frame supervisory panel (NT6X25BB) The FSP NT6X25BB in the NT8X01AA and NT8X01BA contains the following: • nine dc circuit breakers to control power distribution to each electronic unit. Refer to the following table for breaker assignments. •...
Page 35 OPM maintenance summary 1-19 Table 1 Circuit breaker assignment for FSP in OPM CB10 Optional Optional equipment shelf (only in the NT8X01AB, AC, BB and BC) CB11 Optional Optional equipment shelf (only in the NT8X01AB, AC, BB and BC) The FSP NT6X25BC in the NT8X01AB, AC, BB and BC contains the following: •...
Page 36 1-20 OPM maintenance summary Figure 7 OPM main ground bar terminations (NT8X01AA OPM-640/NT8X01BA OPM-256) Mounting bolts (Cabinet grounding) Electronic equipment (dc/logic ground) OPM principal ground (Earth) Incoming ac (Motor generator ground) Protector block Mounting bolt (Cabinet grounding) Outside plant cable ground (Operating company cable shield ground) 297-8361-550 Standard 04.02 December 2004...
Page 37 OPM maintenance summary 1-21 Figure 8 OPM grounding network (NT8X01AB OPM-640/NT8X01BB OPM-256) Logic Frame GND bay 1 Frame gnd bay 0 Cabinet Cabinet Internal ground bar (IGB) OPM principal (earth) GND Protector block Cabinet Outside plant cables (4) Master ground bar (mgb) DMS-100 Family OPM Maintenance Manual ISN07 (TDM)/SN07 (DMS) and up...
Page 38 1-22 OPM maintenance summary Figure 9 OPM grounding network (NT8X01AC OPM-640/NT8X01BC OPM-256) Frame GND Logic/dc Frame GND bay 1 GND bay 1 bay 0 Cabinet Cabinet Internal ground bar (IGB) OPM principal (earth) GND Protector block Cabinet Outside plant cables (4) Master ground bar (MGB) 297-8361-550 Standard 04.02 December 2004...
Page 39: Opm Power And Environmental System Maintenance
OPM maintenance summary 1-23 OPM power and environmental system maintenance Maintenance and user interface commands for the OPM are the same as the RLCM, with the addition of the PES. The OPM maintenance that includes PES maintenance is the PES and involves the following: •...
Page 40: Opm Battery Backup System
1-24 OPM maintenance summary OPM battery backup system The OPM provides a maximum of four pairs of battery strings for backup power when an ac failure occurs. The amount of backup time provided depends on the following conditions: • number of battery strings installed •...
Page 41: Opm Power Matrix And Example Current Demand
OPM maintenance summary 1-25 OPM power matrix and example current demand For the OPM-640 and OPM-256 that do not have line drawers installed, the electric current demand is 52V dc. The OPM frame includes: • frame support hardware: — two NT8X06AB ECUs —...
Page 42 1-26 OPM maintenance summary Line drawer current demand with all lines on-hook The following table shows the base current demand for the OPM with line drawers, line cards and all lines on-hook: Table 2 Frame current with line drawers supplied Frame current demand Drawers Line cards...
Page 43: Opm Power Requirements
OPM maintenance summary 1-27 the OPM-640, 8.3% of the lines is 54. To calculate the total frame power demand, use the following equation: (No. of lines off-hook) * (current per line) + base PWR demand For the OPM-640 with 54 lines off-hook and 50 Ω loops •...
Page 44: Calculating Battery Backup Time
1-28 OPM maintenance summary Calculating battery backup time Use these values to calculate the battery backup time for the different configurations. 1. Calculate the total battery power reserve. a. A Yuasa A037761 battery at a 10-hour discharge rate = 22.3 Ah capacity, 22.3 Ah/string * 8 strings = 178.4 Ah total backup power.
Page 45: Standard Discharge Curve And Charge Time
OPM maintenance summary 1-29 Table 4 Reserve power estimates for 3.0 CCS call rate Calculated backup time Total frame demand (A) hours short loops: avg Drwrs Lines short: average loops loops 10.61:10.20 13.4:14.0 11.37:10.78 12.5:13.2 12.57:11.76 11.3:12.1 13.34:12.34 10.7:11.5 14.10:12.92 10.1:11.0 14.94:13.54 9.5:10.5...
Page 46: Fault Conditions
1-30 OPM maintenance summary Figure 10 Battery discharge in 8 hours (OPM-640) 52.5+ 52.0 51.0 50.0 49.0 48.0 Volts 47.0 46.0 45.0 44.0 43.0 42.0 Hours Fault conditions The Maintenance Overview chapter provides information about fault conditions that are generic to the RLCM components of the OPM.. The fault conditions include: •...
Page 47: Alarm System
OPM maintenance summary 1-31 Alarm system The NT0X10AA scan card in slot 8 of the RMM monitors alarms. The NT0X10AA appears as PESALRM at the PES MAP level. The monitored alarms listed in the following table indicate possible fault conditions. Table 5 PESALRM indicators Alarm Functions monitored...
Page 48 1-32 OPM maintenance summary • fan operation • rectifier PES cards The PES cards are: card NT8X02 BCCDVR battery charger controller driver (BCCDVR) card NT3X09AA PESALRM PES alarm (PESALRM) detector card NT0X10AA The following list describes the OPM alarm conditions, the priority and causes of each alarm: •...
Page 49: Load Bus Low Voltage Alarm
OPM maintenance summary 1-33 alarm occurs. The minor alarm is at the PM level if other PM alarms are not present. The following are the alarms that the system detects: — BCCF0 detected — BCCF1 detected — ECU detected — HBT detected The Yellow condition occurs if the BCCDVR and the PESALRM cards are in the any of the following states: •...
Page 50: Automatic Maintenance
1-34 OPM maintenance summary The discharge rate of the battery strings varies with the OPM load. The OPM has a minimum of 8 h of backup for the following reserve power and load conditions: • eight strings of Yuasa A037761 batteries at 80% or greater capacity •...
Page 51 OPM maintenance summary 1-35 contains the OPM charge bus. The charge bus is a dc-to-dc converter with output to a maximum of 5V higher than the load bus, rectifier voltage. For example, if the load bus voltage is set to -52.0V dc, the maximum charge bus voltage is -57.0V dc ±...
Page 52: Hardware Audit
1-36 OPM maintenance summary Figure 11 OPM with strings 0 and 4 on the charge bus; all others on load bus BCC 1 charge bus Battery strings Rectifier 1 RLCM power Load bus –52 Vdc supply Rectifier 2 Battery strings BCC 0 charge bus Note: Battery strings 3 and 7 are not provisioned with Eagle-Picher batteries.
Page 53: Battery Rotation And Testing Audit
OPM maintenance summary 1-37 system updates the PES MAP display to reflect the setting or clearing of the new alarm. Note: The PESALRM card must report the setting or clearing of alarms immediately. This audit polls the PESALRM card to make sure that system software did not lose alarms in the last hour.
Page 54 1-38 OPM maintenance summary Intermittent charging design The OPM uses an intermittent charging design that the battery rotation and testing audits implements. Do not confuse the OPM intermittent charging design with the float or cyclic charging designs. Other battery application manuals refer to the float or cycle charging designs.
Page 55: Normal Battery Rotation Mode
OPM maintenance summary 1-39 A battery like the Yuasa A037761 has an expected life of 4 to 5 years at 25°C or 77°F. For float charging, the Yuasa A037761 can have an expected life of approximately 1.5 to 2 years in the OPM environment. For intermittent charging, the life of Yuasa A037761 batteries can be extended to over 3 years.
Page 56 1-40 OPM maintenance summary The following table lists and describes the office parameters of table OFCSTD that contain entries for battery rotation and testing. For additional information about office parameters, refer to Office Parameters Reference Manual. Table 6 Battery rotation and testing parameters entered in table OFCSTD Default Parameter Range...
Page 57 OPM maintenance summary 1-41 Table 6 Battery rotation and testing parameters entered in table OFCSTD Default Parameter Range value Description OPM_VOLT_TST 0 through -509 Indicates this parameter is the comparison _CHG -600 value for the voltage of the battery string during the post-charge test.
Page 58 1-42 OPM maintenance summary • STn battery string pair • MEAS measure voltage Table 7 OPM battery rotation and test cycle Sunday Monday Tuesday Wednesday Thursday Friday Saturday MEAS MEAS DISCHG LOADBUS LOADBUS LOADBUS LOADBUS LOADBUS O/C ST0 for 24 hr MEAS MEAS ST1 MEAS ST2...
Page 59 OPM maintenance summary 1-43 Table 7 OPM battery rotation and test cycle Sunday Monday Tuesday Wednesday Thursday Friday Saturday O/C ST2 for 24 hr MEAS MEAS ST3 MEAS ST0 MEAS ST1 MEAS ST2 CHG ST3 CHG ST0 CHG ST1 CHG ST2 O/C ST2 O/C ST3 O/C ST0...
Page 60 1-44 OPM maintenance summary The test-and-charge cycle starts on a Sunday. The following steps summarize the procedure for all strings in the previous table: 1. Office parameter OPM_CHARGE_START_TIME presets the Sunday start time. The system measures voltages of the load bus, the two BCCs and all open-circuited battery strings that contain entries.
Page 61 OPM maintenance summary 1-45 system marks the string as failed. The system returns the pair to the load bus and the charge cycle for the next string starts. Note 1: When a system software marks a battery string pair as failed, follow the test procedures listed under "Manual test procedures for system-failed battery strings".
Page 62: Rotation Disabled Mode
1-46 OPM maintenance summary Table 8 Cycle rotation for week Sunday Monday Tuesday Wednesday Thursday Friday Saturday TST DIS TST CHG LDB ST1 LDB ST2 LDB ST3 LDB ST0 LDB ST1 O/C ST2 O/C ST3 O/C ST0 O/C ST1 TST MIN TST MIN 3 TST MIN 0 MIN1...
Page 63: Ac Failure Mode
OPM maintenance summary 1-47 ac failure mode If both rectifiers fail and cause an FL0 and FL1 alarm, the OPM enters ac failure mode. During ac failure mode, all battery strings are placed on the load bus and no manual battery activities are allowed. The hardware audit frequency now runs 15 min intervals instead of hour intervals.
Page 64: Increase To Manual Maintenance
1-48 OPM maintenance summary normal rotation schedule that appears in the table Cycle Rotation for Week. When the OPM is in post-ac failure mode extended, P/E appears under Week at the PES MAP display. If the RMM at the OPM is out-of-service (OOS), alarms cannot be reported and battery rotation or testing cannot be performed.
Page 65: Manual Battery Actions And System Voltage Measurements
OPM maintenance summary 1-49 If the test passes, but an alarm is present from a previous test, the following events occur: • The alarm condition clears. • The system generates a log. • If no other OPM alarms are present, the OPM state changes from amber to green.
Page 66 1-50 OPM maintenance summary CHARGE_ (0-3) Use the CHARGE command to move a battery string pair from the open circuit state to the charge bus. The CHARGE command operates on battery string pairs with the same method as the OPENCKT command. Note 1: A battery string pair cannot be moved directly from the load bus to the charge bus.
Page 67: Querying Pes Alarms
OPM maintenance summary 1-51 Querying PES alarms To query the PES alarms, use the QUERYPES command at the PES MAP level. To display the state of all OPM alarm systems, enter the QUERYPES command without parameters. To display OPM alarm systems generating alarms, enter the QUERYPES command followed by the FLT parameter QUERYPES FLT.
Page 68 1-52 OPM maintenance summary QueryPES PES 0 , CONDITION GREEN , KOPM 0 0 , BCCDVR CCTNO: 6 , PESALRM CCTNO: 10 ON RMM EHT .,ELT .,BCCF0 .,BCCF1 .,FL0 .,FL1 .,HBT .,FRNT .,SIDE ., BCC0: . , FSP ., AC ., CL0 ., CL1 ., BCC1: .
Page 69 OPM maintenance summary 1-53 Figure 13 ac failure occurrence for PES 2 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...
Page 70: On-Site Outside Maintenance
>querypes On-site outside maintenance Use a tent or cover to perform maintenance work during bad weather. Nortel recommends a Pelsue Model 6508B ground tent or equivalent, 2.44 m by 2.44 m by 1.83 m high (8 ft by 8 ft by 6 ft), with a internal ventilator/heater port.
Page 71: Battery Electrical Inspection
OPM maintenance summary 1-55 If signs of moisture or corrosion are present, perform the following actions: 1. Remove all battery packs from the affected shelf. 2. Clean the affected areas with a combination of baking soda and water. Continue until the cleaning liquid no longer foams when you apply the liquid.
Page 72: Battery Capacity Tests
1-56 OPM maintenance summary Adjusting rectifier voltage LTU check At the OPM site 1. Use a voltmeter with a maximum of 2% error to measure each rectifier output voltage. 2. Adjust the rectifier voltage screws until the voltage is within specification and the current from each rectifier is balanced.
Page 73: Manual Test Procedures For System-Failed Battery Strings
OPM maintenance summary 1-57 6. Use a voltmeter with a maximum of 2% error to measure the voltage of battery strings 0, 4, 1 and 5. Note: Measure the voltage at the battery terminals, not at the faceplate of the NT8X02 BCC. 7.
Page 74 1-58 OPM maintenance summary The manual test procedures that determine if the user must replace the batteries depend on the test that failed. These procedures consist of activities the user performs at the MAP terminal and at the OPM site. The following procedures contain instructions on the actions to take for test failures.
Page 75 OPM maintenance summary 1-59 marked failed, determine if string 1, 5, or both caused the alarm. For OPMs with an MTU, the default for OPM_VOLT_TST_DIS = -495 or -49.5V dc for Yuasa and Eagle-Picher batteries. For OPMs with an LTU, the default for OPM_VOL_TST_CHG is offset by OPM_VOLT_TST_LTU ADJUSTMENT (default=10) and truncated (-495+10 = -485 Trunc(-485) = -480 or -48V dc for Yuasa and...
Page 76 1-60 OPM maintenance summary 4. For OPMs equipped with Yuasa and Eagle-Picher batteries, the voltage must be 52.0V dc , ± 0.3V. Low rectifier voltage can cause a battery string to fail the other tests. If rectifier voltage is within specification, measure the voltage of each battery in the failed battery string.
Page 77: Functional Overview
2 Functional overview The Outside Plant Module (OPM) is a remote peripheral that provides extended geographic coverage for the Digital Multiplex System-100 (DMS-100) switch. The configuration of the OPM allows the OPM to function at a maximum distance of 160.9 km (100 mi) from the host office. The OPM contains hardware and software maintenance components that perform routine audits and identify failures in the following: •...
Page 78: General Configuration
2-2 Functional overview General configuration A single-bay equipment frame for a standard DMS-100 switch contains the OPM. The OPM frame contains the following main components: • standard dual-shelf line concentrating module (LCM) • single-shelf remote maintenance module (RMM) • host interface equipment (HIE) shelf •...
Page 79 Functional overview 2-3 In the OPM, the LCM connects two to six DS-1 C-side links to the 640 subscriber lines. This interface contains the following parts: • 2 power converters • 2 control complexes (LCM processor and digroup control card) •...
Page 80: Lca Shelf Configuration
2-4 Functional overview can be accommodated. The number of ports depend on traffic capacity and the concentration ratio required. LCA shelf configuration The layout of the LCA shelves and line drawers of the OPM appears in the “LCA shelf layout figure". An LCA shelf contains the following parts: •...
Page 81: Lcm Control Complex Cards
Functional overview 2-5 Figure 2 LCA shelf layout LCA: NT6X04AA, AB Power converter Even Even Even Even Even Slot: 01 02 04 05 Line drawers Slot Abbr NT PEC Remarks 01–03 6X53AA Power converter. Also contains ringing and ANI voltage switching circuits. LCMP 6X51AA, AB, AC LCM processor card (see note)
Page 82: Line Drawers
2-6 Functional overview host LTC or LGC to a maximum of 640 lines. The NT6X51AB/AC requires XLCM software loads. Before the release of BCS28, LCMs were equipped with the NT6X51AA LCM processor card with 64 kB of RAM storage capacity. The NT6X51AA requires LCM software loads.
Page 83 Functional overview 2-7 circuit cards. The line drawer continues to operate because flexible cables connect to the back receptacles. Figure 4 LCA line drawer NT6X05AA, circuit card location 16–31 00–15 16–31 Even 00–15 Line circuit cards Line subgroup to flexible cables BIC NT6X54 Drawer front Drawer state display...
Page 84 2-8 Functional overview Example of a MAP response: 11 11 DRWR: When the state of a drawer changes, the system updates the state display. The system or the user can change the drawer state. Table 1 LCM drawer states Code Definition (abbreviation) •...
Page 85 Functional overview 2-9 32-channel P-side ports to control the LSGs. The ten 32-channel P-side ports are on the DCC of each array. Both the LSGs and the separate line cards in the LSGs are numbered. The LSG numbers are in an OPM range from LSG-00 through LSG-19. Line card numbers range from 00 through 31.
Page 86 2-10 Functional overview two-party, and PBX analog telephone sets (type 500 or 2500). The type A card supports loop start, superimposed ringing, and frequency selective ringing with bridged ringers. The type A card supports the cutover control circuit. Refer to “Line card type B, coin". The position for LSG 0, LC-00 is assigned to a type A line circuit and used for analog ringing tests.
Page 87 Functional overview 2-11 line card by an ordinary non-loaded (NL) pair of metallic conductors. Simultaneous voice and extended signaling services are provided on the same loop. The transmission bandwidth on the loop is divided into two frequency bands: 1. Voice channel, 300-3400Hz 2.
Page 88 2-12 Functional overview A list of the recommended DIP switch settings appears in the following table. Table 4 Recommended NT6X21AD S1 DIP switch settings D/A voice Balance Signaling level S3 and S4 Switch position Switch position Both Only Only Both S4 ON S3 ON Recommended...
Page 89 Functional overview 2-13 The NT6X21AC line card appears in the first table. The NT6X21AD line card appears in the second table. Table 5 NT6X21AC THL Limits Frequency 1505 3204 Minimum -6.2 -6.2 -6.2 -7.2 Maximum +1.3 +0.8 +0.8 +0.7 Table 6 NT6X21AD THL Limits Frequency 1505 3204...
Page 90 2-14 Functional overview Figure 5 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...
Page 91: Hie Description
Functional overview 2-15 HIE description The HIE occupies a single shelf at position 05, of bay 0 row A, of the OPM cabinet. The HIE allows the LCA shelves of the OPM to connect to the RMM and to the host office. The HIE shelf contains the following parts: •...
Page 92 2-16 Functional overview Figure 6 The HIE shelf layout 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 Slot NT PEC Remarks...
Page 93 Functional overview 2-17 Under normal conditions, when the LCC and the LCA are active, LCC-0 connects LCA-0 and LCC-1 connects LCA-1. LCC-0 serves even numbered DS-1 links from the DS-1 interface cards. LCC-1 serves odd numbered DS-1 links. The even numbered links are 0, 2 and 4. The odd numbered links are 1, 3 and 5.
Page 94 2-18 Functional overview Figure 7 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 The LCC provides system clocks for the DCC, RMM and LCM. When both units of the LCM are active, LCC-0 is frequency-locked to the primary DS-1 link of the LCC-O.
Page 95 Functional overview 2-19 The DS30A ports in the LCA are numbered 0-7. A list of the port functions appears in the following table. Table 7 LCA port assignments and use Number Port type Functions 0,1, 2 Primary Carries three message channels for the LCA shelf. Message channels are mapped on to channels 1, 2 and 3 of each of the two primary DS-1 links.
Page 96 2-20 Functional overview Primary ports that map one to one with DS-1 links are equipped ports. The number of equipped ports in an LCA depends on the number of DS-1 interface cards provisioned in the HIE. When three DS-1 cards are provisioned, all three primary ports (0, 1, 2) for each LCA are equipped.
Page 97 Functional overview 2-21 Figure 8 OPM link, port and channel structure ports DS-1 channels link Equipped DS-1 channels Primary link Equipped ports DS-1 channels link Equipped To mate Image links 1, DS30A ports 320 lines 3, and 5 Interunit link Interlink port RMM link RMM port...
Page 98: Rmm
2-22 Functional overview RMM description The RMM occupies shelf position 05, bay 1 row B, of the OPM cabinet. The RMM is a modified, cost-reduced form of the maintenance trunk module (MTM). The RMM contains a processor that performs a scan of the service circuits and digit collection during ESA.
Page 99 Functional overview 2-23 engineering requirements. An example of card selections for a standard RMM appear in the “RMM shelf layout" diagram. RMM control card The RMM requires the RMM control card (NT6X74AB), located in slot 02. The RMM control card acts as an interface. This interfrace occurs between the line concentrating array shelves and the test trunks, service circuits and alarm circuits of the RMM.
Page 100 2-24 Functional overview • Scan detector (SC) card (NT0X10). The SC card provides an interface. The interface allows the DMS-100 Switch Alarm System software to monitor the state of the OPM hardware. The system software detects alarm conditions or manually controlled operations. The SC card is divided into two circuits.
Page 101: Frame Supervisory Panel (Fsp)
Functional overview 2-25 Table 8 RMM: 6X13AA or 8X0415 SLOT ABBR NT PEC Remark 2X59AA Group codec and tone card RMMC 6X74AB RMM control card MTUA 2X10BA Metallic test unit, analog MTUB 2X11BA Metallic test unit, digital 3X09BA Remote metallic test access (8X8) BCCDVR 3X09AA Battery charger controller driver...
Page 102 2-26 Functional overview control the alarm facilities and power converters in the OPM cabinet. These circuit packs and associated functions follow: • NT6X36AA Alarm card This card monitors the power converters in the OPM cabinet. This card generates an alarm when an undervoltage condition occurs in any of the power converters.
Page 103: Software Description
Functional overview 2-27 Table 9 FSP circuit breaker assignments Shelf type Shelf pos. Slot pos. PEC code Equipment NT6X53 LCM unit 0 NT6X53 LCM unit 1 T-1 repeaters T-1 repeaters T-1 repeaters T-1 repeaters Software description The following sections describe the software operation of the NTX146AA feature package.
Page 104: Functional Limits
2-28 Functional overview Signaling and supervision Signaling allows the DMS-100 switch to communicate with DMS-100 switch stations or other switching offices. The OPM uses DMS-X protocol to communicate over the DS-1 links with the host office. The DMS-X is a half-duplex, byte-oriented protocol like the DS30.
Page 105: Fault Conditions
Functional overview 2-29 Hardware limits The following hardware limits apply to the NTX146AA: • One OPM can serve a maximum of 640 lines. • The OPM has a maximum traffic-carrying capacity of eight CCS/line, or a maximum of 1.5 calls/second. •...
Page 106: Line Drawer Faults
2-30 Functional overview addition to the lines of the in-service unit. This function, called takeover, is an automatic maintenance feature of the LCM configuration. For more infomation, refer to Takeover capability. When one of the following fails, the LCA shelf goes into takeover: •...
Page 107: Load File Mismatch
Functional overview 2-31 controller when the BpV count exceeds the threshold of 1 BpV per 103 bits. The OPM also monitors the loss of frame indicator for the DS-1 links. The OPM activates an outgoing alarm for any frame loss more than 2.5 s. The OPM deactivates the outgoing alarm when the frame is restored to 10 s frame loss.
Page 108: Opm Audits
2-32 Functional overview • drawer testing • BIC relay testing (BRT) • subscriber line automatic maintenance • LCM routine exercise (REX) tests OPM audits Audits are scheduled to run in the OPM every 5 s to refresh the control data for DS-1 and LCC circuits.
Page 109: Checksums
Functional overview 2-33 Table 10 Full in-service tests State In-service tests Busy Bsy, sane In-service tests Full (all) tests Bsy, insane Stand-alone in-service Stand-alone tests out-of-service tests Checksums The DMS-100 Family of peripheral modules uses a number to calculate the checksum (CHKSUM) for each software load.
Page 110 2-34 Functional overview P-side interface presence test . This test makes sure that DS-1 interface (6X50) cards entered for the LGC/LTC are present. The P-side interface test arranges the following P-side loop test. The P-side interface test terminates when a failed 6X50 card is detected or removed. The diagnostic returns a No Resources error and produces a PM181 log report.
Page 111: Overload Resources
Functional overview 2-35 Full peripheral test After the first two tests in the P-side link diagnostic, this test makes sure necessary hardware is present. The full peripheral test checks one speech channel on each specified LTC P-side link to the OPM. This test is run when the LTC is in active mode.
Page 112 2-36 Functional overview Log reports PM128 and PM181 indicate the overload condition in the OPM. When call processing resumes, the system generates PM128 log with the phrase LCM out of Overload. Current extended memory LCM (XLCM) overload controls The XLCM has 256 kbytes of memory. The XLCM has a specified number of small, medium and large memory blocks, all of a fixed size.
Page 113 Functional overview 2-37 makes sure that internal processes have enough small memory blocks to finish the current tasks. External messages that require SMBs are rejected when the XLCM enters extremely heavy overload. The messages are rejected when the total number of SMBs available is less than or equal to the size of the SMB reserve.
Page 114 2-38 Functional overview Figure 11 Processor occupancy (real-time use) compared to memory blocks Processor occupancy 100% POTS traffic Memory blocks XLCMs have more memory blocks than small-memory LCMs. There are extra messaging requirements to accommodate P-phones. The P-phones are richly provisioned with features like displays and MADN. The result is that the XLCM can run out of real-time before memory blocks.
Page 115 Functional overview 2-39 Figure 13 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 is memory block limited. The XLCM cannot handle real-time overload. This condition can result in outages because of the following reasons: •...
Page 116 2-40 Functional overview raw data that can detect real-time overload. The component leaves the raw data in a depository for the data analysis component. The priority of this component matches the priority of the segment of the system in which the component resides.
Page 117 Functional overview 2-41 Enhancements to the real-time subsystem include the following functions: • To preserve real-time and accomplish reduction of memory blocks. This function periodically reduces the number of memory blocks available for external messages. This function reduces associated throttles until the recovery of some real-time use is complete.
Page 118 2-42 Functional overview Figure 15 Summary of real-time overload symptoms RT OVLD: LOW (2/9, 55) ( Expanded to binary ) BITS If 1, a maintenance request was slow to complete. If 1, a maintenance request did not complete within a maximum allowable time.
Page 119: Takeover Capability
Functional overview 2-43 reduces memory blocks with a change of system parameters of memory block overload. This procedure reduces the amount of memory blocks available for new work. This design aspect makes the new overload system dynamic. The system adjusts to allow very high processor occupancy under any traffic configuration.
Page 120: Lcm Talk Battery Audit
2-44 Functional overview LCM talk battery audit In the past, the report of a loss of talk battery to an LCM shelf did not occur unless the talk battery fuse was blown. The report of the loss of talk battery does not always occur.
Page 121 Functional overview 2-45 Figure 16 Talk battery distribution on RLCE frame RLCE cooling baffle Talk battery fuses LCA–1 Talk battery A feed Talk battery fuses LCA–0 Power Talk battery B feed distribution cooling baffle center Talk battery return For redundancy of return The A feed provides talk battery for LCA-1 and the B feed provides talk battery for LCA-0.
Page 122 2-46 Functional overview talk battery. The loss of talk battery affects one or two LCM shelves. The location of the fault determines the affected LCM shelf. Without talk battery, the LCM line cards cannot signal an off-hook condition. The LCM recognizes any off-hook line as on-hook. Any LCM calls are forced to the on-hook state during the loss of talk battery feed.
Page 123 Functional overview 2-47 The WLC must verify the presence of talk battery feed to the WLC to test for loss of talk battery feed. The test passes when talk battery feed is present. The test fails when the talk battery feed is not present. When off-hook, call processing busy (CPB), or both, occupy an InSv WLC, the audit does not perform the talk battery test.
Page 124 2-48 Functional overview The MAP commands that can Bsy the last available WLC on an LCM shelf are modified. The commands are modified to issue a warning message when this condition occurs. Three commands can cause this condition. • the Bsy command at the LTP MAP level when a WLC is posted •...
Page 125 Functional overview 2-49 cause this condition. The first command is the RTS command at the LTP MAP level when a WLC is posted and RTSed. An example of a response to the RTS command appears below: Example of a MAP response: RTSing the first available WLC on the LCM shelf.
Page 126 2-50 Functional overview originations and terminations, this negligible delay is the only impact on call processing. • The Talk Battery Alarm feature can detect the loss of talk battery feed to an LCM shelf. Detection of the loss of talk battery return cannot occur because of WLC limits.
Page 127: Esa Capability
Functional overview 2-51 WLC to detect talk battery failures. There are three methods to avoid this condition: — BSY/RTS the LCM. This action is not recommended because of the service outage. The WLC is in the proper HASU maintenance state and the LCM can use the WLC to perform talk battery tests.
Page 128 2-52 Functional overview When a drawer state changes to ISTb or SysB, the state of the OPM changes to ISTb or SysB. Detection of some drawer ISTb conditions can occur only when the drawer or the PM is OOS. These conditions include BIC scan, BIC inhibit, BIC CM and BIC activity.
Page 129 Functional overview 2-53 • 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.
Page 130: Bic Relay Test (Brt)
2-54 Functional overview BIC relay test (BRT) The BRT tests the tip and ring reversal relay on each BIC of a given LCM. The BRT allows for the manual testing of a single drawer of a specified LCM and the scheduled tests of all LCMs in an office. The QUERYPM FLT command is enhanced to indicate the drawers that fail the manual or system BIC relay test.
Page 131 Functional overview 2-55 You can enter up to seven days in any combination. You cannot enter the same day more than one time. — An error message can appear. This message appears when the start and stop times are the same or when the test window is less than 10 min. —...
Page 132 2-56 Functional overview LCM to an XLCM load. When this event occurs, the BRT does not test the LCM. You must busy the LCM, reload the LCM with an XLCM load and RTS the LCM. This action includes LCM in the test schedule. An office-level test or manual LCM-level test attempt can occur on an LCM with a load that is not changed.
Page 133 Functional overview 2-57 The OFF parameter does not allow the resumption of the office-level test. A message appears to indicate the test is OFF. Any system BRTs in progress can complete. OFF is the default. When the test is disabled, the test does not begin until enabled with the ON option.
Page 134 2-58 Functional overview RELAY command at the LCM MAP display level to start the single drawer test. Office-level test The system test performs the following steps: • loops over each LCM the test schedule includes • loops over each drawer for each LCM •...
Page 135 Functional overview 2-59 Tests at the same time (for each LCM) The LCM tests run at the same time when test equipment is available to the maximum number the BICRELAY_NUM_SIMUL_TESTS parameter described indicates earlier. LTUs or MTUs must be provisioned to allow the number of tests that occur at the same time (LCM-level) to run.
Page 136 2-60 Functional overview The PM132 displays a combined report of each drawer-level test in a set LCM. The PM132 indicate the following: • test passes • reversal test fails • test does not run because line card is not available •...
Page 137 Functional overview 2-61 Restarts The following information applies to manual and system-level restarts: • warm or cold — the system aborts all drawer-level tests. — the system saves ISTb reasons. — All LCM-level tests stop and are system level when the tests are in the window.
Page 138: Subscriber Lines Automatic Maintenance
2-62 Functional overview • This test is not run on an LCM at the same time as an LCM audit and a REX test. • The user must not enter BRTST_START_TIME and BRTST_STOP_TIME fields of the BICRELAY_XLCM_TEST_SCHEDULE office parameter with the same value.
Page 139 Functional overview 2-63 appears at the MAP terminal under the PM banner at the top of the display. The system generates a PM181 log after a complete REX test. When an InSv or OOS diagnostic test fails, the REX test failure reason includes the mnemonic.
Page 140: System Rex Controller: Xpm Maintenance
2-64 Functional overview tests at the same time for a maximum of ten XPMs. The XPMs must have the same REX test class. • A maximum of four LCM_REX_TESTs can run at the same time. This action can occur when the system does not REX test the HOST XPM the tests are associated with.
Page 141 Functional overview 2-65 • The QUERY parameter returns the status of the REX test. The status is active or suspended. • The HELP parameter returns a description of the REX test. The REX test order for feature AF3771 follows: • critical nodes, like the communications module (CM) and message switch (MS) •...
Page 142 2-66 Functional overview Figure 17 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 sections of LCM_REX_TEST require wait states and unique test resources.
Page 143 Functional overview 2-67 Figure 18 SREX scheduling Network LTC 0 LGC 0 LCM 2 LCM 0 RCC 0 OPM 0 OPM 0 Note 1: The REX tests can run on LCM 0 and LCM 1 at the same time as REX tests that run on RCC 0 and LGC 0.
Page 144 2-68 Functional overview • REX test maintenance record • MAP commands to access REX test failures Emergency stand-alone REX test The ESA REX tests the ability of OPM units to enter and exit ESA. The ESA REX tests the ability of OPM units to message the ESA processor when in ESA.
Page 145 Functional overview 2-69 and press the Enter key Note: Performs LCM_REX_TEST on the posted LCM. >TST COVREX NOW Note: Performs LCMCOV_REX_TEST on the posted LCM. The following message appears when you enter the TST COVREX NOW command. Example of a 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...
Page 146 2-70 Functional overview The CI level NAG command allows operating company personnel to display all out-of-service nodes. The MAP response to the NAG command is like the response that applies to the NAG400 log report. The command and log report are part of the NAG feature.
Page 147: Escalation To Manual Maintenance
Functional overview 2-71 REX maintenance records The system generates a maintenance record from a REX test. This report indicates results of recent REX tests for each LCM entered. This information is available at the PM level of the MAP display for a posted LCM. Note: After a reload restart, the system erases the maintenance record for each LCM.
Page 148 2-72 Functional overview The alarms that relate to the OPM appear in the following table. These alarms appear under the PM subsystem header of the MAP display. Note: When nn is greater than 99, two asterisks (**) appear instead of numbers.
Page 149: Subscriber Lines Manual Maintenance
Functional overview 2-73 In addition to the above alarm conditions, ESA module defects can generate alarms at the MAP display PM level. These alarms are the same as the alarms the present peripheral modules raise. The system can generate the following alarms: •...
Page 151: Prlcm Overview
3 PRLCM overview The PCM30 remote line concentrating module (PRLCM) is a remote peripheral module that provides extended geographic coverage for the DMS-100 switch. The PRLCM is conﬁgured to operate at a distance of up to 160.9 km (100 mi) from the host ofﬁce. The PRLCM contains hardware and software maintenance components that perform routine audits and identify malfunctions in the following: •...
Page 152 3-2 PRLCM overview Figure 3-1 PRLCM frame, shelf, and panel arrangement PRLCM frame Shelf position Frame supervisory panel Office repeaters Remote maintenance module 2 Link Cooling baffle control cards 2 to 3 PCM30 interface cards 2 Ringing Host interface equipment generators 2 Power converters...
Page 153: International Line Concentrating Module
PRLCM overview 3-3 International line concentrating module The LCM occupies shelf positions 04 and 21 of the PRLCM frame. The dual unit LCM contains two LCA shelves. LCA-0 is always the bottom array or shelf and LCA-1 is the top array of the LCM. Bafﬂe and fuse panels above each LCA permit air circulation for convectional cooling and carry sets of ﬁve +5V, +15V and -48V fuses for the line drawers, as well as a pair of fuses for the ringing voltage outputs (RA and RB).
Page 154 3-4 PRLCM overview The ringing generators also produce voltages required for ANI and coin control (48 V dc and 130 V dc). They monitor ANI and coin voltages and ring bus outputs for failure. Link control cards The two LCCs ﬁll slots 17 and 18 of the HIE. Each LCC provides an interface between eight DS30A ports from an PRLCM LCA shelf and the PCM30 links to the host ofﬁce.
Page 155 PRLCM overview 3-5 One-to-one mapping of LCA primary ports with PCM30 links means that all 24 channels of a PCM30 link come out of one 32-channel DS30A port. Extra channels are used for control and signaling, from the host, and for intra- and interspeech channels.
Page 156 3-6 PRLCM overview Table 3-1 LCA port assignments and use (Sheet 2 of 2) Number Port type Functions Interlink Provides a DS30A link for intershelf connections. During call processing, the channels on this port allow a subscriber line on one LCA to be connected to a subscriber line in the mate LCA, leaving PCM30 channels to the host office free.
Page 157 PRLCM overview 3-7 Power converter card Two power converters occupy the far right of the HIE shelf in slots 22 to 24 and 25, respectively. Slot 25 is the rightmost slot on the shelf. ESA control complex If the ESA feature package is provisioned, the HIE shelf contains three additional circuit cards, which are located in slots 14, 15, and 16.
Page 158: Remote Maintenance Module
3-8 PRLCM overview Figure 3-3 PRLCM link, port and channel structure PCM30 ports channels link Equipped PCM30 channels Primary link Equipped ports PCM30 channels link Equipped To mate Image links 1, DS30A ports 320 lines 3, and 5 Interunit link Interunit port RMM link RMM port...
Page 159: Frame Supervisory Panel
PRLCM overview 3-9 RMM contains its own processor, which performs scanning of the service circuits and digit collection during ESA. The RMM C-side interface uses a pair of DS30A links, one to each LCC in the HIE shelf. The DS30A links ensure the RMM is operable, regardless of which LCC is active.
Page 160: Emergency Stand Alone Description
3-10 PRLCM overview This card controls the alarms and power for the NT6X53AA power converter for unit 1 of the LCM and the NT2X70AA in slot position 22 of the HIE. • NT0X91AE Converter Drive and Protection Circuit This card controls the alarms and power for the NT6X53AA power converter for unit 0 of the LCM, the NT2X70AA in slot position 25 of the HIE, and the NT2X09AA/NT2X06BA in slot positions 17 and 20, respectively, of the RMM.
Page 161: Esa Hardware Representation
PRLCM overview 3-11 ESA feature package, the PRLCM emulates the call processing functions of the LTC and the central control (CC). ESA hardware representation An illustration of the ESA hardware conﬁguration, from the viewpoint of the MAP terminal, is shown in the following ﬁgure. This illustration shows the PRLCM as a C-side node to both the ESA processor and the remote maintenance module (RMM).
Page 162: Esa Operation
3-12 PRLCM overview ESA operation The PRLCM enters ESA mode when the PRLCM determines that it can no longer communicate with the host site. The two situations that cause entry into ESA mode at the PRLCM are as follows: • unusable communication links •...
Page 163: Esa Hardware
PRLCM overview 3-13 ESA hardware The additional hardware for the PRLCM equipment frame consists of the following circuit cards: • one ESA processor card, NT6X45AF • one 2-Mbyte memory card, NT6X47AB, or one 4-Mbyte memory card, NT6X47AC • one ESA clock and tone card, NT6X75AA For a block diagram of an PRLCM with the ESA hardware see the ﬁgure PRLCM with ESA Hardware Block Diagram.
Page 164: Intracalling During Esa Mode
3-14 PRLCM overview Additional LTC hardware The additional hardware in feature package NTX154AA for the host LTC is the messaging card, NT6X69. This card allows communications with the ESA processor. Intracalling during ESA mode Intracalling provides the capability of switching calls at the remote location during ESA mode.
Page 165: Exiting Prlcm Esa Mode
PRLCM overview 3-15 By reconﬁguring the C-side channels on ESA entry, more interswitch channels are available for unit-to-unit calls. Refer to the following table for a list of the channel breakdown in PRLCM ESA. Table 3-2 Channel availability after ESA entry Number of Number of intra...
Page 166 3-16 PRLCM overview When C-side communications are restored between the PRLCM and the DMS CC, the DMS CC initiates the ESA exit sequence. Before the ESA exit sequence begins, the DMS CC communicates with the ESA processor over the nailed-up connection. This communication determines if the PRLCM is in ESA mode and if the PRLCM can be recovered immediately.
Page 167 PRLCM overview 3-17 The following steps describe the manual exit sequence: 1. The C-side communications between the DMS CC and the PRLCM are restored. 2. The DMS CC discovers that the PRLCM is in ESA mode. 3. The DMS CC queries the PRLCM for the number of active calls. 4.
Page 169: Esa Maintenance Overview
4 ESA maintenance overview Functional description The Outside Plant Module (OPM) with the Emergency Stand-Alone (ESA) feature package NTX154AA is a different configuration than the standard OPM. Special hardware components are required in addition to the ESA software. This chapter treats the ESA configuration separately. When the OPM is a remote configuration, defective or severed communication links between the OPM and the host site can interrupt service.
Page 170 4-2 ESA maintenance overview Figure 1 ESA hardware representation (up to 32 DS30 links) Unit 0 Unit 1 (up to 6 DS-1 links) Unit 0 Unit 1 Unused C-side message links to the OPM. Figure “ESA hardware representation in ESA mode" represents the OPM in ESA mode.
Page 171: Esa Operation
ESA maintenance overview 4-3 Figure 2 ESA hardware representation in ESA mode (up to 32 DS30 links) Unit 0 Unit 1 (Links between the OPM and the LTC are inoperable.) 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 OPM.
Page 172: Esa Hardware
4-4 ESA maintenance overview communicate with the DMS CC during ESA exit. The DMS CC must instruct the ESA processor to exit ESA. During ESA mode, the system processes calls through the ESA processor. The ESA processor contains the ESA CC, a software module that imitates the DMS CC and handles line-to-line call processing.
Page 173 ESA maintenance overview 4-5 Figure 3 OPM with ESA hardware block diagram Central controller (CC) 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...
Page 174 4-6 ESA maintenance overview NT6X47AC - 4 Mbyte memory card This card is the same memory card used in the LTC. This card contains 4 Mbyte of memory. The system uses 3 Mbyte of memory for call processing when the RLCM enters ESA. The 6X47AC is required for ESA loads for BCS33 and higher.
Page 175 ESA maintenance overview 4-7 The following table describes the cards in the host interface equipment shelf. Table 1 Host interface equipment cards Slot ABBR NT PEC Remarks 01-04 RG 0 NT6X60AA OPM ringing generator 05-08 RG 1 NT6X60AA OPM ringing generator 09-13 NT0X50AG Filler panel...
Page 176: In-Service Firmware Downloading
4-8 ESA maintenance overview Table 2 RMM: 6X13AA MTUA 2X10BA Metallic test unit, analog MTUB 2X11BA Metallic test unit, digital 3X09BA Remote metallic test access (8X8) BCCDVR 3X09AA Battery charger controller driver 0X50AC Filler panel 0X10AA Scan detector card (PESALRM) 2X09AD Test trunk circuit 2X09AD...
Page 177 ESA maintenance overview 4-9 LOADFW: Load Firmware onto ESA. ALL parameter will execute LOADFW on all ESAs in the post set. LOADFW UPGRADE must be used to activate the new firmware. Parms: [<FILE> STRING] [UPGRADE {UPGRADE}] [NOWAIT {NOWAIT}] [ALL {ALL}] To download firmware to the ESA, execute one of the following commands.
Page 178: Software Operation
4-10 ESA maintenance overview 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 179: Esa Call Processing
ESA maintenance overview 4-11 During ESA mode, the system handles all intracalls through the ESA processor. The ESA processor contains a subset of the translations data found in the DMS CC. ESA call processing When the OPM is in ESA mode, the ESA CC processes line-to-line calls. The following figure shows the basic call processing structure of the ESA CC.
Page 180 4-12 ESA maintenance overview Figure 5 ESA CC basic call processing structure Maintenance Requests A terminal sends maintenance requests and event messages (like digit collection, on-hook, off-hook) to the TPT. Terminal Processing Task (TPT) The TPT sends messages to the server for coding or decoding.
Page 181 ESA maintenance overview 4-13 message. The ESA CC initially screens the line states of all messages. The CPC handles all lines in the idle, originate, abandon or lockout states. The CPC also handles all lines in the state of call processing busy. The CPB of a line contains the state of the call process.
Page 182 4-14 ESA maintenance overview state. When in the idle state, the system starts the idle scan for an off-hook condition. Calls cannot terminate to this line. — Call processing busy: The line is in a call-processing-busy state. In this state, a CPB associates with the line. The associated CPB index is in the second byte of the TST.
Page 183 ESA maintenance overview 4-15 the office has coded ringing, the system applies a ring splash to the opposite side of the terminator. — Talking: A voice connection between the call originator and terminator. The system restores tip and ring reversal relay for semi-post-paid coin line.
Page 184 4-16 ESA maintenance overview processing waits for the result of the coin function. Supervision continues on the terminating line. — Coin disconnect: The terminating coin line goes on-hook first. The system implements the coin release function. Call processing waits for the result of the coin function.
Page 185: Esa Translation Data
ESA maintenance overview 4-17 receivers are allocated in a circular fashion, all receivers receive equal distribution. The following steps explain how the system uses a receiver. 1. When a line goes off-hook and originates a call, the system requests a receiver.
Page 186: Supported Subscriber Line Types
4-18 ESA maintenance overview Downloading the ESA processor The system downloads translation data to the ESA processor as follows: • manually: The LOADPM command downloads data manually to the ESA processor. • during return to service (RTS): The RTS command downloads data automatically to the ESA processor if the ESA processor cannot perform call processing with current data.
Page 187: Supported Subscriber Services
ESA maintenance overview 4-19 • digital data unit (DDU). The system supports PDN, HOLD and RELEASE keys. There is no modem pooling. • lines with cutoff on disconnect option. The cutoff relay is operated for 300 Supported subscriber services During OPM ESA mode, the supported subscriber services are POTS and MDC.
Page 188 4-20 ESA maintenance overview Interswitch and intraswitch channels make call connections through the OPM and do not involve a host connection. The interswitch and intraswitch abilities allow call processing to continue in ESA operation. On OPM ESA entry, the system configures OPM channels. The channels of all DS-1 ports are not equipped except for primary ports 0 and 1.
Page 189: Exiting The Opm Esa Mode
ESA maintenance overview 4-21 The OPM does not gain channels when the system arranges the C-side channels on OPM ESA entry. The OPM gains interswitch channels when there is a decrease of intraswitch channels. Exiting the OPM ESA mode After communications restore, the DMS CC recovers the OPM from the ESA mode.
Page 190 4-22 ESA maintenance overview ESA manual exit A manual exit is an exit from ESA mode that the operating company personnel start at the LCM MAP level with the RTS command. The system requires a manual exit when any of the following conditions exist: •...
Page 191 ESA maintenance overview 4-23 incoming C-side ports of the OPM. The following table shows the OPM ESA tones, their channel appearance, and cadence. Table 5 OPM ESA tones Tone type Tone ID Channel appearance Cadence (in seconds) (HEX) Port Channel Busy Reorder 0.25...
Page 192: Ringing During Esa Mode
4-24 ESA maintenance overview Ringing during ESA mode The OPM needs duplicated ringing generators. The ringing types supported during OPM ESA mode are as follows: • coded ringing • frequency ringing • superimposed ringing • immediate ringing Treatments during ESA mode The treatments supported during OPM ESA mode are as follows: •...
Page 193 ESA maintenance overview 4-25 Restrictions during ESA mode Global restrictions during ESA mode are as follows: • The system does not support line diagnostics while the OPM is in ESA mode. • The system does not provide ESA mode for an OPM that changes. •...
Page 194: Fault Conditions
4-26 ESA maintenance overview Fault conditions The fault condition of unusable communication links triggers the ESA mode of operation. The possible reasons for this fault condition are described below. Unusable communication links Communication links from the OPM to the DMS CC cannot be used when the following conditions exist: •...
Page 195: Automatic Esa Maintenance
ESA maintenance overview 4-27 Fault conditions that can occur during ESA operation are as follows: • line errors — too many originations — confusion message received — line translation error — dial pulse error (bad digits) — Digitone error (bad digits) —...
Page 196: Digitone Receiver Audit
4-28 ESA maintenance overview Digitone receiver audit The DTR audit monitors the status of the Digitone receivers. If a call process possesses a DTR for more than two audits, the audit terminates the process. The audit starts the clean-up process for the CPB. The audit also marks the DTR as available.
Page 197 ESA maintenance overview 4-29 use the test (TST) command with the REX option. These tests require that both LCM units of the OPM, RMM and ESA processor are InSv. The REX test tests the ability of the LCM units to enter and exit ESA mode. The REX also tests the ability of the LCM units to send messages to the ESA processor while in ESA mode.
Page 198: Escalation To Manual Maintenance
4-30 ESA maintenance overview messaging functions are the DMS CC to ESA processor messaging capabilities. ESA RAM diagnostics The ESA processor has a RAM diagnostic test. Operating company personnel can implement this test with the TST command. The system can implement this test during a RTS.
Page 199: Esa Manual Exit
ESA maintenance overview 4-31 If the process fails, the system makes the ESA processor SysB. ESA manual exit Operating company personnel can use the RTS command to perform a manual exit from the ESA mode at the LCM MAP level. Perform a manual exit when any of the following conditions exist: •...
Page 201: Opm Hardware
5 OPM hardware This chapter describes the Outside Plant Module (OPM) hardware components that give subscribers the full resources of the digital switching system. The following sections describe the hardware components and additional components that OPM contains. OPM hardware components A standard DMS frame houses the OPM.
Page 202 5-2 OPM hardware The LCM contains two shelves called line concentrating arrays (LCA). Each LCA contains ﬁve line drawers. A fully equipped LCM contains ten line drawers. An LCM supports 640 subscriber lines when the LCM is fully equipped. Each LCA has a control complex, processor and digroup control and power converter.
Page 203: Host Interface Equipment
OPM hardware 5-3 Figure 5-1 Frame, shelf, and panel arrangement, OPM-640 (NT8X01AA, AB) Door switch Fuse panels Battery control unit (BCU) RECT1 LCA-1 RECT0 Repeater LCA-0 Cards BAY 0 BAY 1 End–access compartment Host interface equipment The host interface equipment (HIE) shelf (NT6X1101) contains the DS-1 interface cards (NTX650AA) to connect the DS-1 links to the host controller.
Page 204: Frame Supervisory Panel
5-4 OPM hardware DS30A ports of the LCM are mapped to the DS-1 interface cards in the HIE. Data travels through the DS-1 links to the host. One LCC is present in the HIE for each LCM unit (LCA shelf). In normal operation, the two LCCs connect alternately to even and odd LCAs.
Page 205: Opm Configuration
OPM hardware 5-5 • NT2X06AB—Power converter common feature • NT2X09AA—Multi-output power cards Cards that can appear in the RMM are as follows: • NT2X90AD—Incoming/outgoing test trunk • NT2X10AC—Line test unit analog • NT2X11AD—Line test unit digital • NT2X10BA—Multi-line test unit analog •...
Page 206: Opm Hardware Components
5-6 OPM hardware The access to the main compartment of the OPM is from the front of the cabinet by a pair of swinging doors. Concave lock pins hinge each cabinet door. Each cabinet door can be padlocked. Each door opens approximately 120 degrees.
Page 207: Environmental Control Unit
OPM hardware 5-7 The OPM batteries have a maximum of eight strings of Yuasa batteries or six strings of Eagle Picher batteries. Each battery string consists of 24 cells. The battery strings connect to the OPM load or the charge bus through the two BCCs and the BCU.
Page 208: Additional Opm Components
5-8 OPM hardware Figure 5-2 Bay frame and equipment arrangement, OPM-640 (NT8X01AA, AB) Door switch Fuse panels Battery control unit (BCU) RECT1 LCA-1 RECT0 Repeater LCA-0 Cards BAY 0 BAY 1 End–access compartment Additional OPM components The following sections describe optional components that are available for both the OPM-640 and the OPM-256.
Page 209: Digital Remote Test Unit
OPM hardware 5-9 Digital Remote Test Unit The DRTU (NT0J42AA) model 3704 allows a full set of accurate and cost-effective line tests over standard DS-1 or ﬁber-optic facilities. The ﬁber-optic facilities are at an OPM remote location. The DRTU is mounted on the back wall of an OPM-640 or OPM-256.
Page 210 5-10 OPM hardware Channel bank option The installation of a user-selected channel bank provides special services. The special services include foreign exchange, non-switched digital data, and off-premises extensions. The channel bank does not share any operational functionality with the OPM, except alarms. Alarms require the addition of a scan card (NT0X10) in the RMM slot 7.
Page 211 OPM hardware 5-11 Figure 5-3 Bay frame equipment location for OPM-256 (NT8X01BC) High Bay locking High Door temperature alarm knobs temperature alarm switch Fuse panels LCM-C RECT1 RECT0 Empty (or optional DS-1 equipment) Repeater Cards BAY 0 BAY 1 Diffuser Low temp.
Page 212 5-12 OPM hardware Figure 5-4 Battery arrangement and back wall components in the OPM cabinet Commercial ac power breaker Emergency generator power breaker Calibration device (optional) TB5 power leads Door switch TS5 signal leads A0389314 14-pin power cable and connector Optional third Rack DRTU...
Page 213: The Opm Recovery Procedures
6 The OPM recovery procedures This chapter contains a recovery procedure that recovers an Outside Plant Module (OPM) to service from a completely out-of-service condition. Maintenance personnel can use this procedure in a DMS-100/200 ofﬁce. DMS-100 Family OPM Maintenance Manual XPM14 and up...
Page 214: Opm
6-2 The OPM recovery procedures Alarm display Trks Appl nLCM Application Use this procedure to recover service in an outside plant module (OPM) when the following two conditions occur: • the ac power is interrupted • battery (dc) power is discharged below the low voltage limit The OPM does not have ac or dc power.
Page 215 The OPM recovery procedures (continued) Summary of OPM recovery procedure This flowchart summarizes the procedure. Use the instructions that follow this flowchart to perform the At PM level of procedure. MAP, display SysB LCMs Is LCM in System Busy Post LCM System Busy LCM (SysB) LCMs?
Page 216 6-4 The OPM recovery procedures (continued) OPM recovery procedure At the OPM site Open the front doors and both bays of row A. Open Bay 1 ﬁrst. Verify that ac and dc power are present. If OPM is NT8X01AA,AB, BA or BB step 3 is NT8X01AC or BC step 4...
Page 217 The OPM recovery procedures (continued) and press the Enter key. where site is the site name of the OPM (alphanumeric) frame is the frame number of the OPM cabinet is the number of the LCM Note: The display on the right of the MTCE ﬂag of the two units reads SYSTEM RECOVERY.
Page 218 6-6 The OPM recovery procedures (continued) and press the Enter key. where rmm_no is the number of the RMM to post in step 13 To busy the RMM, type >BSY and press the Enter key. To load the RMM, type >LOADPM and press the Enter key.
Page 219 The OPM recovery procedures (end) If loadpm fails step 22 To return the ESA processor to service, type >RTS and press the Enter key. If the ESA processor returns to service step 23 fails to return to service step 22 For additional help, contact the next level of support.
Page 221: Opm Alarm Clearing Procedures
7 OPM alarm clearing procedures This chapter contains the alarm clearing procedures for the Outside Plant Module (OPM). 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 section correspond with the alarms.
Page 222: Lcm Critical
7-2 OPM alarm clearing procedures critical Alarm display Trks Appl nLCM Indication Use this procedure to restore service in an outside plant module (OPM) when both units of the line concentrating module (LCM) are out of service (OOS). This condition always produces a central-side busy (CBsy) alarm. The LCM alarm appears under the peripheral module (PM) header in the MAP subsystem display.
Page 223 OPM alarm clearing procedures critical (continued) Summary of clearing an LCM critical alarm This flowchart is a summary of the procedure. At PM level of Use the flowchart to review the MAP terminal, procedure. Follow the steps to display CBsy perform the procedure.
Page 224 7-4 OPM alarm clearing procedures critical (continued) Summary of clearing an LCM 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 225 OPM alarm clearing procedures critical (continued) Summary of clearing an LCM 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? recovery? Leave OPM in Allow system to...
Page 226 7-6 OPM alarm clearing procedures critical (continued) Clearing an LCM critical alarm At the MAP terminal Enter this procedure from a PM system level alarm clearing procedure step that ideniﬁes a PM alarm associated with an OPM fault. To make sure that the OPM is receiving power, check light-emitting diodes (LEDs) on power converters in the host interface equipment (HIE), remote maintenance module (RMM), battery charge controller (BCC) and LCM shelves.
Page 227 OPM alarm clearing procedures critical (continued) To identify the OPM that has faults, type: >DISP STATE CBSY LCM and press the Enter key. If response indicates no CBsy LCMs step 17 indicates CBsy LCMs step 7 To post the OPM with the alarm condition, type: >POST LCM CBsy and press the Enter key.
Page 228 7-8 OPM alarm clearing procedures critical (continued) where link_no is the number of a P-side link identiﬁed in step 10 To test the busied link, type: >TST LINK link_no and press the Enter key. where link_no is the number of a P-side link busied in step 11 If test passed step 13...
Page 229 OPM alarm clearing procedures critical (continued) and press the Enter key. To RTS the PM, type: >RTS PM and press the Enter key. If RTS passed step 40 failed step 33 To identify the OPM that has faults and display the LCM by site, type: >DISP STATE SYSB LCM and press the Enter key.
Page 230 7-10 OPM alarm clearing procedures critical (continued) PM Type: LCM Int. No.: 20 Status index: 9 Node_No: 165 Memory Size: 256K ESA equipped: Yes, Intraswitching is On Loadnames:LCMINV –XLCM06AW,Unit0:XLCM06AW, Unit1:XLCM06AW Node Status: (OK, FALSE) Unit 0 Status: (OK, FALSE) Unit 1 Status: (OK, FALSE) Site Flr RPos Bay_id Description Slot...
Page 231 OPM alarm clearing procedures 7-11 critical (continued) Before you perform a manual restore on the OPM from ESA, check if the links to the OPM are stable To ﬁnd the link numbers for this OPM, type: >TRNSL C and press the Enter key. Example of a MAP response: Link LTC 1...
Page 232 7-12 OPM alarm clearing procedures critical (continued) If link conditions display a very low number of step 26 SLIP and FRME To post the OPM with the alarm condition, type: >PM; POST LCM site frame lcm and press the Enter key. where site is the site name of the OPM (alphanumeric)
Page 233 OPM alarm clearing procedures 7-13 critical (continued) To attempt to return the OPM to service, type: >RTS PM and press the Enter key. If MAP prompt indicates RTS is successful step 40 indicates CBsy step 8 indicates load failure step 31 indicates all other results step 33 To attempt to reload the OPM, type:...
Page 234 7-14 OPM alarm clearing procedures critical (end) where lcm_unit is the LCM unit of the OPM to be loaded (0 or 1) If load is successful step 38 is not successful step 33 To test the LCM unit, type: >TST UNIT lcm_unit and press the Enter key.
Page 235: Lcm (Rg) Critical
OPM alarm clearing procedures 7-15 LCM (RG) critical Alarm display Trks Appl nLCM Indication At the MTC level of the display, nLCM appears under the PM subsystem header. A *C* under the nLCM indicates a critical alarm involving an LCM. The n indicates the number of LCMs with this alarm.
Page 236 7-16 OPM alarm clearing procedures LCM (RG) critical (continued) Summary of clearing an LCM (RG) critical alarm This flowchart summarizes the Access PM level BSY the SysB procedure. at MAP display LCM unit and silence alarm Use the instructions that follow this flowchart to perform the procedure.
Page 237 OPM alarm clearing procedures 7-17 LCM (RG) critical (continued) Summary of clearing an 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 LCM unit RTS LCM unit...
Page 238 7-18 OPM alarm clearing procedures LCM (RG) critical (continued) Summary of clearing an LCM (RG) critical alarm (continued) BSY the other LCM unit Replace RG that has faults RTS LCM unit TST LCM unit Align units to TST passes? selected RG Contact next End of level of support...
Page 239 OPM alarm clearing procedures 7-19 LCM (RG) critical (continued) Clearing an LCM (RG) critical alarm associated with a ringing generator ATTENTION Enter this procedure from the PM system level alarm clearing procedure step. This step must identify a PM alarm associated with an OPM ringing generator fault.
Page 240 7-20 OPM alarm clearing procedures LCM (RG) critical (continued) 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 the system indicates RG failure step 6 does not indicate RG failure...
Page 241 OPM alarm clearing procedures 7-21 LCM (RG) critical (continued) If the system does not generate a card list step 18 Check the card list that appears at the MAP display. Example of a MAP response: SITE FLR RPOS BAY_ID SHF DESCRIPTION SLOT EQPEC REM1 01 OPE 00 LCM:14 1...
Page 242 7-22 OPM alarm clearing procedures LCM (RG) critical (continued) Example of a MAP display: LCM REM1 14 1 Unit 1 SWRG Passed If the SWRG command passes, and you must switch RG step 13 activity for the other unit passes, and RG activity is cor- step 13 rect for both units fails...
Page 243 OPM alarm clearing procedures 7-23 LCM (RG) critical (end) Note: Repeat this step until both units of the LCM are on the selected RG. If the SWRG command passes step 19 fails step 18 Go to Card Replacement Procedures . Complete the card replacement procedure.
Page 244: Lcm Talk Battery Alarm Critical
7-24 OPM alarm clearing procedures LCM 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 alarm in an outside plant module (OPM): •...
Page 245 OPM alarm clearing procedures 7-25 LCM talk battery alarm critical (continued) Summary of clearing an LCM 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 246 7-26 OPM alarm clearing procedures LCM talk battery alarm critical (continued) Clearing an LCM talk battery alarm critical alarm At the MAP terminal ATTENTION Enter this procedure from a PM system level alarm clearing procedure step that identiﬁed a PM alarm associated with an OPM fault. To silence an audible alarm, type >MAPCI;MTC;SIL and press the Enter key.
Page 247 OPM alarm clearing procedures 7-27 LCM talk battery alarm critical (continued) Trks APPL 1LCM SysB ManB OffL CBsy ISTb InSv 0 Quit 2 Post_ 3 ListSet 4 SwRG REM04 ISTB Links_OOS: CSide PSide 5 Trnsl_ Unit0: InsV /RG: 1 6 Tst_ Unit1: InsV /RG: 1...
Page 248 7-28 OPM alarm clearing procedures LCM talk battery alarm critical (continued) Use the following table to determine the +15V fuse (06-10) associated with a -48V fuse (11 to15). If-48V fuse number Do +15V fuse number Remove the blown fuse and the associated fuse. For example, if the blown fuse is fuse 11, remove fuse 06.
Page 249 OPM alarm clearing procedures 7-29 LCM talk battery alarm critical (continued) Determine if the fuse is blown. If the fuse is blown step 14 is not blown step 57 Remove the fuse holder that contains the blown fuse. At the OPM site Trip the circuit breaker CB8 or CB9 to remove the talk battery ﬁlter from the circuit to prevent a blown cartridge fuse.
Page 250 7-30 OPM alarm clearing procedures LCM talk battery alarm critical (continued) Determine if the fuse did blow again. If the fuse did blow again step 56 did not blow again step 57 Determine if the FSP uses network termination 1 (NT1) repeaters. If NT1 repeaters are used step 22...
Page 251 OPM alarm clearing procedures 7-31 LCM talk battery alarm critical (continued) Host XPM type and number Link 0: LTC 0 0;Cap MS;Status:OK ;MsgCon:CLS Link 1: LTC 0 1;Cap MS;Status:OK ;MsgCon:CLS Link 2: LTC 0 3;Cap s;Status:OK Link 3: LTC 0 4;Cap S;Status:OK To post the host peripheral, type...
Page 252 7-32 OPM alarm clearing procedures LCM talk battery alarm critical (continued) pm_type is the host peripheral (LGC, LTC, RCC, or RCC2) pm_no is the number of the peripheral (0 or 256) link_no is the number of the link associated with the host XPM. See step 24 display.
Page 253 OPM alarm clearing procedures 7-33 LCM talk battery alarm critical (continued) Obtain a capacitor forming tool. Note: A capacitor forming tool consists of a 100 watt 120V light bulb tightened into a socket with pigtail leads. Loosen the slotted nut on the front of the FSP. DANGER Risk of electrocution Some terminals in the FSP have an electrical potential of...
Page 254 7-34 OPM alarm clearing procedures LCM talk battery alarm critical (continued) Obtain a replacement capacitor. Label the leads that connect to the positive terminal of the capacitor as (+). Label the leads that connect to the negative terminal as (-). The labels prevent a reversal of the leads.
Page 255 OPM alarm clearing procedures 7-35 LCM talk battery alarm critical (continued) N CLASS SITE LTC CK D ALARM SLIP FRAME ES SES STATE 0 REMOTE HOST 0 OFFL Host XPM P-side link number To busy the links ofﬂined in step 30, type >BSY item_no and press the Enter key.
Page 256 7-36 OPM alarm clearing procedures LCM talk battery alarm critical (end) where lcm_unit is the LCM unit busied in step 23 If the test passed step 55 failed step 56 To return to service (RTS) the LCM unit, type >RTS UNIT lcm_unit and press the ENTER key.
Page 257: Lcm Major
OPM alarm clearing procedures 7-37 major Alarm display Trks Appl nLCM Indication The alarm code LCM (line concentrating module) appearing under the peripheral module (PM) subsystem header indicates an LCM alarm. The M under the LCM indicates the alarm class is major . The number n before LCM indicates the number of OPMs affected by the alarm.
Page 258 7-38 OPM alarm clearing procedures major (continued) Summary of clearing an LCM major alarm This flowchart summarizes the procedure. Use the instructions that follow At PM level of this flowchart to perform the MAP, display procedure. ISTb LCMs Post ISTb LCM Query LCM for faults Power up...
Page 259 OPM alarm clearing procedures 7-39 major (continued) Summary of clearing an LCM major alarm (continued) Busy LCM unit Test LCM unit Return LCM Return to End of Test passed? unit to service service procedure passes? Loading Load the LCM Load error? unit successful?
Page 260 7-40 OPM alarm clearing procedures major (continued) Summary of clearing an LCM major alarm (continued) Post host peripheral Display P-side links Busy link that has faults Test link that has faults Return link to Return to Are other Test passes? service service links SysB?
Page 261 OPM alarm clearing procedures 7-41 major (continued) Clearing an LCM major alarm At the MAP terminal ATTENTION Enter this procedure from a PM system level alarm clearing procedure step that identiﬁed a PM alarm with an OPM fault. To silence an audible alarm, type >MAPCI;MTC;SIL and press the Enter key.
Page 262 7-42 OPM alarm clearing procedures major (continued) If fault indicated is ManB step 17 At the OPM site Inspect the ringing generator to see if the LED is lit. If the LED is lit step 7 is not lit step 16 To power up the ringing generator move the circuit breaker to the ON position.
Page 263 OPM alarm clearing procedures 7-43 major (continued) and press 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 information for the links that have a status other than OK. To busy the link that has faults, type >BSY LINK link_no and press the Enter key.
Page 264 7-44 OPM alarm clearing procedures major (continued) and press the Enter key. where site is the site name of the OPM (alphanumeric) frame is the frame number of the OPM (0 to 511) is the number of the OPM WARNING If you do not allow the time required for the system to clear the alarm, a false alarm indication can occur.
Page 265 OPM alarm clearing procedures 7-45 major (end) To attempt to load the OPM unit, type >LOADPM UNIT lcm_unit CC and press the Enter key. where lcm_unit is the LCM unit to be loaded (0 or 1) If load is successful step 19 is not successful step 21...
Page 266: Opm (Rg) Major
7-46 OPM alarm clearing procedures OPM (RG) major Alarm display Trks Appl nLCM Indication An nLCM under the PM subsystem header indicates an alarm that involves an OPM ringing generator. The number n indicates the number of units affected by the alarm. The letter M below the nLCM indicates that the alarm classs is major.
Page 267 OPM alarm clearing procedures 7-47 OPM (RG) major (continued) Summary of clearing an OPM (RG) major alarm Access PM level Replace This flowchart summarizes the at MAP and ringing procedure. silence alarm generator Use the instructions that follow to perform the procedure. BSY ISTb LCM PostISTb unit...
Page 268 7-48 OPM alarm clearing procedures OPM (RG) major (continued) Clearing an OPM (RG) major alarm At your current location Enter this procedure from a PM system-level alarm clearing procedure step. This step must identify a PM alarm associated with an OPM ringing generator fault.
Page 269 OPM alarm clearing procedures 7-49 OPM (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...
Page 270 7-50 OPM alarm clearing procedures OPM (RG) major (continued) To power up the ringing generator, move the circuit breaker to the ON position The LED goes out. These switches are identiﬁed here as: • RG 0 corresponds to LCM unit 0 CB2 •...
Page 271 OPM alarm clearing procedures 7-51 OPM (RG) major (end) step 17 TST FAILED 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 OPM. Determine if RTS is successful. step 18 RTS PASSED step 14...
Page 272 7-52 OPM alarm clearing procedures Ext FSP OPM cabinet major Alarm display Trks Appl 1FSP Indication The alarm code FSP appears under the EXT header of the alarm banner, at the MTC level of the MAP display. The alarm code indicates an external frame supervisory panel (FSP) major alarm.
Page 273 OPM alarm clearing procedures 7-53 Ext FSP OPM cabinet major (continued) Summary of clearing an Ext FSP OPM cabinet major alarm Determine if any This flowchart summarizes the CONVERTER procedure. FAIL LEDs are Use the instructions that follow this flowchart to perform the procedure.
Page 274 7-54 OPM alarm clearing procedures Ext FSP OPM cabinet major (continued) Clearing an Ext FSP OPM cabinet major alarm At the OPM cabinet ATTENTION Enter this procedure from a peripheral module (PM) system level alarm clearing procedure step that identiﬁed a PM alarm associated with an OPM cabinet fault.
Page 275 OPM alarm clearing procedures 7-55 Ext FSP OPM cabinet major (continued) If a fuse is not blown step 109 Determine if the ABS wiring inside the FSP is short-circuited. Contact the next level of support. Obtain a replacement fuse with the same voltage and amperage as the blown fuse.
Page 276 7-56 OPM alarm clearing procedures Ext FSP OPM cabinet major (continued) If -48V fuse number is Do associate +15V fuse number Remove the blown fuse and the associated fuse. For example, if the blown fuse is fuse number 06, remove fuse number 11. Obtain a replacement fuse with the same voltage and amperage as the blown fuse.
Page 277 OPM alarm clearing procedures 7-57 Ext FSP OPM cabinet major (continued) Remove the blown fuse and the associated fuse. For example, if the blown fuse is fuse number 06, remove fuse number 11. Obtain a replacement fuse with the same voltage and amperage as the blown fuse.
Page 278 7-58 OPM alarm clearing procedures Ext FSP OPM cabinet major (continued) Unseat all the line cards in the drawer. Note: Do not remove the line cards from the drawer. If you handle any one of fuses 01 to 05 step 23 handle an RA or RB fuse step 23 handle any one of fuses 06 to 15 step 22...
Page 279: Ext Fsp Opm Cabinet Major
OPM alarm clearing procedures 7-59 Ext FSP OPM cabinet major (continued) Determine if the drawer has any loose or short-circuited wires. If the wires are loose or short-circuited step 112 are not loose or short-circuited, the fuse is a ringing step 27 voltage fuse (RA or RB) and all five drawers in the shelf are not complete...
Page 280 7-60 OPM alarm clearing procedures Ext FSP OPM cabinet major (continued) If you handle an RA or RB fuse step 36 handle any one of fuses 06 to 15 step 33 Obtain a replacement fuse with the same voltage and amperage as the blown fuse.
Page 281 OPM alarm clearing procedures 7-61 Ext FSP OPM cabinet major (continued) Reseat all the other line cards in the drawer. Push the drawer back in. Go to step 105. Use the following table to identify the circuit breaker associated with the RG that is lit FAIL LED.
Page 282 7-62 OPM alarm clearing procedures Ext FSP OPM cabinet major (continued) DANGER Risk of ﬁre For continued protection against risk of ﬁre, make sure to replace the blown fuse with a fuse of the same type, rating (color code), and vendor. Replace the blown fuse.
Page 283 OPM alarm clearing procedures 7-63 Ext FSP OPM cabinet major (continued) Determine which power converter has a lit CONVERTER FAIL LED. If the converter is an NT6X53 step 56 is not an NT6X53 step 59 Use the following table to identify the circuit breaker associated with the shelf with a lit CONVERTER FAIL LED.
Page 284 7-64 OPM alarm clearing procedures Ext FSP OPM cabinet major (continued) Use the following table to identify the circuit breaker associated with the shelf with the lit CONVERTER FAIL LED. The circuit breaker is on the FSP. If shelf number is Do use circuit breaker number NT2X70 slot...
Page 285 OPM alarm clearing procedures 7-65 Ext FSP OPM cabinet major (continued) Remove the fuse holder that contains the blown fuse. Replace the cartridge fuse inside the fuse holder. DANGER Risk of ﬁre For continued protection against risk of ﬁre, make sure to replace the blown fuse with a fuse of the same type, rating (color code), and vendor.
Page 286 7-66 OPM alarm clearing procedures Ext FSP OPM cabinet major (continued) Set the circuit breaker to OFF. Refer to the correct procedure in Card Replacement Procedures to replace the converter. When you complete the procedure, return to this point. Determine which type of converter you replaced. If the converter you replaced is an NT6X53 step 81...
Page 287 OPM alarm clearing procedures 7-67 Ext FSP OPM cabinet major (continued) If the circuit breaker remains ON, and the CONVERTER FAIL LED is step 91 not lit remains ON, and the CONVERTER FAIL LED is lit step 88 Set the circuit breaker to OFF. Replace the NT6X51 card.
Page 288 7-68 OPM alarm clearing procedures Ext FSP OPM cabinet major (continued) Determine if the pins on the backplane of the shelf are bent or short-circuited. If the pins are bent or short-circuited step 98 are not bent or short-circuited, and the converter is an step 100 NT6X53 are not bent or short-circuited, and the converter is...
Page 289 OPM alarm clearing procedures 7-69 Ext FSP OPM cabinet major (continued) NT0X91AA card in slot CD 3 NT6X36AA card in slot cover NT0X91AE CD 1 card in slot CD 2 Record the numbers of the line concentrating module (LCM) and remote maintenance module (RMM) in the OPM cabinet.
Page 290 7-70 OPM alarm clearing procedures Ext FSP OPM cabinet major (end) At the MAP terminal To access the EXT level of the MAP display, type >MAPCI;MTC;EXT and press the Enter key. Determine if an FSP alarm is present. If an FSP alarm is present, and you did not access all the frames with step 108 an FSP alarm...
Page 291: Rmm Major
OPM alarm clearing procedures 7-71 major Alarm display Trks Appl nSysB Indication The alarm code nSysB under the peripheral module (PM) subsystem header indicates an alarm that involves an RMM. The letter M below the alarm code indicates that the alarm class is major. The header is at the MTC level of the MAP display.
Page 292 7-72 OPM alarm clearing procedures major (continued) Summary of clearing an RMM major alarm This flowchart summarizes the Display SysB procedure. RMMs at PM level of MAP Use the instructions that follow this flowchart to perform the procedure. Post SysB Busy RMM Test RMM Return to...
Page 293 OPM alarm clearing procedures 7-73 major (continued) Summary of clearing an RMM major alarm (continued) Load RMM Message List filename in 'Loadfile not Load passes Reload RMM user directory found in dir.'? Load passes? Test RMM Test passes Identify OPM Post OPM and Busy and test Test passes?
Page 294 7-74 OPM alarm clearing procedures major (continued) Clearing an RMM major alarm At the MAP terminal Enter this procedure from a PM system level alarm clearing procedure step. This step must identify a PM alarm associated with an RMM fault. To silence the alarm, type: >MAPCI;MTC;PM;SIL and press the Enter key.
Page 295 OPM alarm clearing procedures 7-75 major (continued) To load the RMM, type: >LOADPM and press the Enter key. the system displays the message step 8 load file not found in directory load passes step 32 load fails step 36 Determine the type of device where the PM load ﬁles are located. If load ﬁles are on a tape step 9...
Page 296 7-76 OPM alarm clearing procedures major (continued) and press the Enter key. where tape_no is the number of the tape drive containing the PM load ﬁles Go to step 24. From ofﬁce records, determine and note the number of the input/output controller (IOC) disk.
Page 297 OPM alarm clearing procedures 7-77 major (continued) To reload the RMM, type >LOADPM and press the Enter key. If load fails step 36 passes step 32 To identify the OPM with links in a SysB condition, type: >TRNSL C and press the Enter key. Example of a MAP response: LINK 0: LCM REM1 14 1 0;CAP MS;STATUS:SysB,;MSGCOND:CLS...
Page 298 7-78 OPM alarm clearing procedures major (continued) LINK 0: RMM 0 0;CAP MS;STATUS:SysB,;MSGCOND: CLS LINK 1: RMM 0 1;CAP MS;STATUS:SysB,;MSGCOND: CLS LINK 2: ESA 0 0;CAP S;STATUS: OK,;MSGCOND: OPN LINK 4: ESA 0 1;CAP S;STATUS: OK,;MSGCOND: OPN To busy the link that has faults, type: >BSY LINK link_no and press the Enter key.
Page 299 OPM alarm clearing procedures 7-79 major (end) To test the RMM, type: >TST and press the Enter key. If test passes step 33 fails, and the system produces a step 35 cardlist fails, and the system does not step 36 produce a cardlist To return the ManB RMM to service, type: >RTS...
Page 300: Lcm Minor
7-80 OPM alarm clearing procedures minor Alarm display Trks Appl n LCM Indication The alarm code LCM under the PM subsystem header indicates an LCM alarm. The absence of *C* or M under the LCM indicates a minor alarm. The number n before LCM indicates the number of LCMs with a minor alarm.
Page 301 OPM alarm clearing procedures 7-81 minor (continued) Summary of clearing an LCM minor alarm At PM level of This flowchart summarizes the MAP, display procedure. ISTb LCMs Use the instructions that follow this flowchart to perform the procedure. Post ISTb LCM Query LCM for faults Is ringing...
Page 302 7-82 OPM alarm clearing procedures minor (continued) Summary of clearing an LCM minor alarm (continued) Busy and test LCM unit Return to Return LCM End of Test passed? service unit to service procedure passed? Are you Card list? Replace card clearing PBsy alarm? Are you...
Page 303 OPM alarm clearing procedures 7-83 minor (continued) Summary of clearing an LCM minor alarm (continued) Post host peripheral Display P-side links that have faults Busy and test links that have faults Return to Other links Return link to Test passed? service SysB? service...
Page 304 7-84 OPM alarm clearing procedures minor (continued) Clearing an LCM minor alarm At the MAP terminal ATTENTION Enter this procedure from a PM system level alarm clearing procedure step that identiﬁed a PM alarm associated with an OPM fault. To silence an audible alarm, type >MAPCI;MTC;SIL and press the Enter key.
Page 305 OPM alarm clearing procedures 7-85 minor (continued) To determine the fault indicators, type >QUERYPM FLT and press the Enter key. If the system indicates a ringing generator fault step 6 indicates a CBsy (C-side busy) fault step 9 indicates a PBsy (P-side busy) fault step 16 indicates a DRWR FLT (drawer fault) step 22...
Page 306 7-86 OPM alarm clearing procedures minor (continued) To busy the SysB unit, type >BSY UNIT unit_no and press the Enter key. where unit_no is the number of the SysB unit Example of a MAP response: REM1 00 0 ISTb Links OOS: Cside 0 Pside Unit0: InSv /RG: 0...
Page 307 OPM alarm clearing procedures 7-87 minor (continued) where link_no is the number of a P-side link busied in step 13 If test passed step 15 failed step 22 To return the busied link to service, type >RTS LINK link_no and press the Enter key. where link_no is the number of a P-side link busied in step 12...
Page 308 7-88 OPM alarm clearing procedures minor (continued) To busy the RMM or ESA processor, type >BSY and press the Enter key. To test the RMM or ESA processor, type >TST and press the Enter key. If test passed step 20 failed, and the system produces step 29 a card list...
Page 309 OPM alarm clearing procedures 7-89 minor (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 310 7-90 OPM alarm clearing procedures minor (continued) To test both line subgroups associated with the drawer that has faults, type >TST DRWR and press the Enter key. where is the number of one of the line subgroups associated with the drawer that has faults.
Page 311 OPM alarm clearing procedures 7-91 minor (continued) and press the Enter key. where lcm_unit is the LCM unit to be busied (0 or 1) 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 passed...
Page 312 7-92 OPM alarm clearing procedures minor (end) you are changing the card. After you replace the card, return to the step in this procedure as indicated below. If you are clearing a PBsy alarm step 19 are clearing drawer faults step 24 are clearing all other alarms step 27...
Page 313: Rmm Minor
OPM alarm clearing procedures 7-93 minor Alarm display Trks Appl nCBsy Indication An nCBsy under the peripheral module (PM) subsystem header indicates a minor alarm that involves an remote maintenance module (RMM). This header appears at the maintenance (MTC) level of the MAP display. Meaning The n indicates the number of RMMs in the central-side (C-side) busy (CBsy) state.
Page 314 7-94 OPM alarm clearing procedures minor (continued) Summary of clearing an 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 procedure. Post RMM Test RMM End of Test passes?
Page 315 OPM alarm clearing procedures 7-95 minor (continued) Clearing an RMM minor alarm At the MAP terminal ATTENTION Enter this procedure from a step in the PM system level alarm clearing procedure. This step identiﬁes a PM alarm associated with an OPM fault. To silence the alarm, type: >MAPCI;MTC;PM;SIL and press the Enter key.
Page 316 7-96 OPM alarm clearing procedures minor (continued) To identify the OPM with links that are busied by the system (SysB), type: >TRNSL C and press the Enter key. Example of a MAP response LINK LCM OPM 00 0 0;CAP MS;STATUS:SysB,;MSGCOND:CLS LINK LCM OPM 00 0 1;CAP MS;STATUS:...
Page 317 OPM alarm clearing procedures 7-97 minor (continued) link_no is the number of the the P-side link that has defects from step 7 To test the manually busied (ManB) link, type: >TST LINK link_no and press the Enter key. where link_no is the number of the manually busy link (0 or 1) from step 8 step 10 TST PASSED...
Page 318 7-98 OPM alarm clearing procedures minor (end) and press the Enter key. If test step 17 TST PASSED TST FAILED, and the system step 14 produces a cardlist TST FAILED, and the system step 16 does not produce a cardlist The card list identiﬁes the cards that can have defects.
Page 319: Esa Critical, Minor
OPM alarm clearing procedures 7-99 critical, minor Alarm display Trks Appl nESA Indication The alarm code ESA under the PM subsystem header indicates an ESA alarm. The *C* indicates a critical ESA alarm. The absence of *C* under the ESA indicates a minor ESA alarm.
Page 320 7-100 OPM alarm clearing procedures critical, minor (continued) Summary of clearing ESA critical, minor alarms This flowchart summarizes the procedure. Use the instructions in the procedure that follows this flowchart to perform the procedure. At PM level of MAP display, display CBsy Post C-side Display...
Page 321 OPM alarm clearing procedures 7-101 critical, minor (continued) Summary of clearing ESA critical, minor alarms (continued) Return to Are other Return link to Test passes? service links service passes? defective? End of procedure Load Load ESA Load failure? passes? processor Card list? Replace card Contact...
Page 322 7-102 OPM alarm clearing procedures critical, minor (continued) Clearing ESA critical, minor alarms At the MAP terminal ATTENTION Enter this procedure from a PM system level alarm clearing procedure step. This step identiﬁes a PM alarm that associates with an OPM fault. To silence an audible alarm, type: >MAPCI;MTC;SIL and press the Enter key.
Page 323 OPM alarm clearing procedures 7-103 critical, minor (continued) Example of a MAP response : Link 0: LCM 0 0;Cap M ;Status:SysB ;MsgCond:CLS Link 1: LCM 0 1;Cap M ;Status:SysB ;MsgCond:CLS Record information for the ESA links that have a status other than OK. To post the OPM associated with the link that has faults, type: >POST LCM site frame lcm and press the Enter key.
Page 324 7-104 OPM alarm clearing procedures critical, minor (continued) link_no is the number of a P-side link that has defects If test passes step 10 fails step 20 To return to service the busied link, type: >RTS LINK link_no and press the Enter key. where link_no is the number of a P-side link that has defects...
Page 325 OPM alarm clearing procedures 7-105 critical, minor (continued) Example of a MAP display : REM1 0 SysB To busy the posted ESA processor, type: >BSY and press the Enter key. MAP response : This action will take this PM out of service Please confirm (“Yes”...
Page 326 7-106 OPM alarm clearing procedures critical, minor (end) To return to service the ESA processor, type: >RTS and press the Enter key. If return to service is successful step 21 fails because of loading error step 16 fails because of CBsy condition step 4 other step 20...
Page 327 OPM alarm clearing procedures 7-107 PM PES critical, major, minor Alarm display Trks Appl nPES Indication The alarm code PES, under the peripheral module (PM) header, indicates a power and environment system (PES) alarm in an Outside Plant Module (OPM). The MAP terminal displays the following information under the PES alarm according to how important the alarm is: Alarm Information displayed under PES...
Page 328 7-108 OPM alarm clearing procedures PM PES critical, major, minor (continued) Example of a MAP response: OPMPES 2 Cond: GREEN REM2 Audit Week Common Rectifiers FL0 FL1 CL0 CL1 BCCDVR PESALRM ECU FSP Temp Door BCCFUSES 0= . EHT ELT FRNT SIDE 1= .
Page 329: Pm Pes Critical, Major, Minor
OPM alarm clearing procedures 7-109 PM PES critical, major, minor (continued) • high battery temperature alarm set • battery rotation audit disabled • battery string failed system testing • AMBER The system detects one or more of the following faults in the OPM: •...
Page 330 7-110 OPM alarm clearing procedures PM PES critical, major, minor (continued) condition of rectifiers condition of rectifier 0 no rectifier fault detected rectifier failed to detect its output FL1 condition of rectifier 1 no rectifier fault detected rectifier failed to detect its output CL0 current limiting condition of rectifier 0 current limiting circuitry not active current limiting circuitry active...
Page 331 OPM alarm clearing procedures 7-111 PM PES critical, major, minor (continued) • condition of the frame supervisory panel FSP not faulty FSP fault detected • condition of the battery charger controller normal load bus configuration in use one or more battery strings not connected to the load bus •...
Page 332 7-112 OPM alarm clearing procedures PM PES critical, major, minor (continued) • AUDIT state of the battery rotation and testing audit audit enabled audit disabled • WEEK mode of battery rotation and testing audit battery strings 1–4, audit enabled for normal rotation and testing audit enabled, ac or rectifier failure post ac failure recovery mode (short outage)
Page 333 OPM alarm clearing procedures 7-113 PM PES critical, major, minor (continued) Summary of clearing PM PES critical, major, minor alarms This flowchart summarizes the Go to PES level procedure. of MAP display Use the instructions that follow this flowchart to perform the Post the most procedure.
Page 334 7-114 OPM alarm clearing procedures PM PES critical, major, minor (continued) Summary of clearing PM PES critical, major, minor alarms (continued) Return PESALRM End of Alarm clears? PESALRM to test passes? procedure service Contact Replace scan maintenance card support group 297-8361-550 Standard 04.01 September 2000...
Page 335 OPM alarm clearing procedures 7-115 PM PES critical, major, minor (continued) Clearing PM PES critical, major, minor alarms At the MAP terminal ATTENTION Enter this procedure from a PM system level alarm clearing procedure step. This step must identify a PM alarm associated with an OPM fault. If an alarm continues to be audible, silence the alarm.
Page 336 7-116 OPM alarm clearing procedures PM PES critical, major, minor (continued) Example of a MAP display: Trks Appl 1PES OPMPES SysB ManB OffL CBSY ISTB InSV 0 Quit 2 Post_ AMBER GREEN OFFL OPMPES 6 Tst_ OPMPES 2 Cond: AMBER REM2 7 Bsy_ Audit...
Page 337 OPM alarm clearing procedures 7-117 PM PES critical, major, minor (continued) If the selection is CL0/CL1 step 8 is BCCDVR step 13 is BCC (0/1) step 18 is Audit step 7 is 0/1/2/3 (battery string pairs) in step 22 F (fail) state To disable the audit, type >AUDIT DISABLE and press the Enter key.
Page 338 7-118 OPM alarm clearing procedures PM PES critical, major, minor (continued) and press the Enter key. If test fails step 10 passes step 12 You must replace the scan card. Use the Card Replacement Procedures to replace the card. Notify outside operating company personnel. Go to step To test the new scan card, type >TST PESALRM...
Page 339 OPM alarm clearing procedures 7-119 PM PES critical, major, minor (continued) Example of a MAP display: Trks Appl 1PES SysB ManB OffL CBSY ISTB InSV 0 Quit 2 Post_ AMBER GREEN OFFL 6 Tst_ 2 Cond: AMBER REM2 7 Bsy_ Audit Week 8 Rts_...
Page 340 7-120 OPM alarm clearing procedures PM PES critical, major, minor (end) and press the Enter key. If the system does not display W under BCC step20 displays W under BCC step 18 This system generates the alarm if only one or more equipped battery string pair is on the load bus.
Page 341: Opm Card Replacement Procedures
8 OPM card replacement procedures This chapter contains the card replacement procedures for the Outside Plant Module (OPM). 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 342: Nt0X10 In An Opm Rmm
8-2 OPM card replacement procedures NT0X10 in an OPM RMM Application Use this procedure to replace the following card in an RMM. Suffixes Name NT0X10 Miscellaneous Scan Card (SC) Common procedures The replacing a card procedure is referenced in this procedure. Action The following ﬂowchart is a summary of the procedure.
Page 343 OPM card replacement procedures NT0X10 in an OPM RMM (continued) Summary of card replacement procedure for an NT0X10 card in an RMM This flowchart summarizes the procedure. Access the TRKS;TTP level of Use the instructions in the the MAP terminal procedure that follows this flowchart to perform the procedure.
Page 344 8-4 OPM card replacement procedures NT0X10 in an OPM RMM (continued) Replacing an NT0X10 card 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. At the MAP display Access the TTP level of the MAP and post the scan points on the card to be replaced by tying...
Page 345 OPM card replacement procedures NT0X10 in an OPM RMM (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 7. Obtain further assistance in replacing this card by contacting the personnel responsible for higher level of support.
Page 346: Nt0X91Aa In An Opm
8-6 OPM card replacement procedures NT0X91AA in an OPM Application Use this procedure to replace the following card in an FSP. Suffixes Name NT0X91 FSP drive and alarm circuit pack Common procedures None Action The following ﬂowchart is a summary of the procedure. To replace the card, use the instructions in the procedure that follows the ﬂowchart.
Page 347 OPM card replacement procedures NT0X91AA in an OPM (continued) Summary of card replacement procedure for an NT0X91AA card in an OPM This flowchart summarizes the procedure. Access the PM level of Use the instructions in the the MAP display procedure that follows this flowchart to perform the procedure.
Page 348 8-8 OPM card replacement procedures NT0X91AA in an OPM (continued) Replacing an NT0X91AA card in an OPM At your current location Obtain a replacement card. Ensure that the replacement card has the same product engineering code (PEC), including sufﬁx, as the card being removed. FSP Alarm and control cards NT0X91AA card in slot...
Page 349 OPM card replacement procedures NT0X91AA in an OPM (continued) Use the following table to identify which shelves, converters, and circuit breakers (CB) are associated with the alarm and control card you want to replace. Alarm and Shelf control shelf card power Converter number circuit breaker...
Page 350 8-10 OPM card replacement procedures NT0X91AA in an OPM (continued) CAUTION Loss of service This procedure contains directions to busy one unit of a peripheral module (PM) in a frame. Since busying a unit of a PM affects redundancy, replace alarm and control cards only during periods of low trafﬁc.
Page 351 OPM card replacement procedures 8-11 NT0X91AA in an OPM (end) Determine if a Converter Fail LED is lit. If Converter Fail LED is step 28 not lit step 23 At the MAP display Access the PM level of the MAP display by typing >MAPCI;MTC;PM and pressing the Enter key.
Page 352: Nt0X91Ae In An Opm
8-12 OPM card replacement procedures NT0X91AE in an OPM Application Use this procedure to replace the following card in an FSP. Suffixes Name NT0X91 FSP drive and alarm circuit pack Common procedures None. Action The following ﬂowchart is a summary of the procedure. To replace the card, use the instructions in the procedure that follows the ﬂowchart.
Page 353 OPM card replacement procedures 8-13 NT0X91AE in an OPM (continued) Summary of card replacement procedure for an NT0X91AE card in an OPM This flowchart summarizes the Access the procedure. PM level of the MAP Use the instructions in the display procedure that follows this flowchart to perform the procedure.
Page 354 8-14 OPM card replacement procedures NT0X91AE in an OPM (continued) Replacing an NT0X91AE card in an OPM At your current location Obtain a replacement card. Ensure that the replacement card has the same product engineering code (PEC), including sufﬁx, as the card being removed. FSP Alarm and Control cards NT0X91AA card in slot...
Page 355 OPM card replacement procedures 8-15 NT0X91AE in an OPM (continued) Use the following table to identify which shelves, converters, and circuit breakers (CB) are associated with the alarm and control card you want to replace. Alarm and Shelf control shelf card power Converter number...
Page 356 8-16 OPM card replacement procedures NT0X91AE in an OPM (continued) rame_no is the number of the frame where the LCM is located lcm_no is the number of the LCM unit associated with the faulty card Busy LCM unit 0 by typing >BSY UNIT 0 and pressing the Enter key.
Page 357 OPM card replacement procedures 8-17 NT0X91AE in an OPM (continued) DANGER Risk of electrocution Some of the terminals inside the frame supervisory panel (FSP) have an electrical potential of -48 V dc. Remove all jewelry before replacing a card in the FSP. Do not touch any terminals in the FSP.
Page 358 8-18 OPM card replacement procedures NT0X91AE in an OPM (continued) At the MAP display Access the PM level of the MAP display by typing >MAPCI;MTC;PM and pressing the Enter key. Post the LCM that is controlled by the alarm and control card you have just replaced by typing >POST LCM site_name frame_no lcm_no...
Page 359 OPM card replacement procedures 8-19 NT0X91AE in an OPM (continued) and pressing the Enter key. If unit 0 RTS passed step 39 RTS failed step 47 Post the RMM that is controlled by the alarm and control card you have just replaced by typing >POST RMM rmm_no and pressing the Enter key.
Page 360 8-20 OPM card replacement procedures NT0X91AE in an OPM (end) and pressing the Enter key. If ESA processor RTS passed step 45 RTS failed step 47 The next action depends on your reason for performing this procedure If you were directed to this procedure from a step 46 maintenance procedure...
Page 361 OPM card replacement procedures 8-21 NT2X06 in an OPM RMM Application Use this procedure to replace the following card in an RMM. Suffixes Name NT2X06 AA, AB Power Converter (5V/40A) Common procedures The replacing a card procedure is referenced in this procedure. Action The following ﬂowchart is a summary of the procedure.
Page 362 8-22 OPM card replacement procedures NT2X06 in an OPM RMM (continued) Summary of card replacement procedure for an NT2X06 card in an RMM This flowchart summarizes the At TTP level of the procedure. MAP, post the RMM Use the instructions in the procedure that follows this flowchart to perform the Is the RMM...
Page 363 OPM card replacement procedures 8-23 NT2X06 in an OPM RMM (continued) Replacing an NT2X06 card 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 another maintenance procedure, go to step 8;...
Page 364: Nt2X06 In An Opm Rmm
8-24 OPM card replacement procedures NT2X06 in an OPM RMM (continued) rmm_no is the number of the RMM shelf in which the card is to be replaced Example of a MAP display: SysB ManB Offl CBsy ISTb InSv InSv Busy the RMM by typing >BSY and pressing the Enter key.
Page 365 OPM card replacement procedures 8-25 NT2X06 in an OPM RMM (continued) At the MAP display Go to the PM level and post the RMM, if not already posted, and load the RMM by typing >PM;POST RMM rmm_no;LOADPM and pressing the Enter key. where rmm_no is the number of the RMM shelf in which the card is to be replaced...
Page 366 8-26 OPM card replacement procedures NT2X06 in an OPM RMM (continued) 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. wherewhere tape_no is the number of the tape drive containing the PM load ﬁles Go to step 30.
Page 367 OPM card replacement procedures 8-27 NT2X06 in an OPM RMM (continued) Leave the disk utility by typing >QUIT and pressing the Enter key. Reload the RMM by typing >LOADPM and pressing the Enter key. load failed step 36 load passed step 31 Return the RMM to service by typing >RTS...
Page 368 8-28 OPM card replacement procedures NT2X06 in an OPM RMM (end) Go to step 37. Obtain further assistance in replacing this card by contacting the personnel responsible for higher level of support. You have completed this procedure. 297-8361-550 Standard 04.01 September 2000...
Page 369 OPM card replacement procedures 8-29 NT2X09 in an OPM RMM Application Use this procedure to replace the following card in an RMM. Suffixes Name NT2X09 AA, AB Multioutput Power Converter (5V/40A) Common procedures The replacing a card procedure is referenced in this procedure. Action The following ﬂowchart is a summary of the procedure.
Page 370 8-30 OPM card replacement procedures NT2X09 in an OPM RMM (continued) Summary of card replacement procedure for an NT2X09 card in an 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 371 OPM card replacement procedures 8-31 NT2X09 in an OPM RMM (continued) Replacing an NT2X09 card 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 another maintenance procedure, go to step 8;...
Page 372: Nt2X09 In An Opm Rmm
8-32 OPM card replacement procedures NT2X09 in an OPM RMM (continued) rmm_no is the number of the RMM shelf in which the card is to be replaced Example of a MAP display: SysB ManB Offl CBsy ISTb InSv InSv Busy the RMM by typing >BSY and pressing the Enter key.
Page 373 OPM card replacement procedures 8-33 NT2X09 in an OPM RMM (continued) At the MAP display Go to the PM level and post the RMM, if not already posted, and load the RMM by typing >PM;POST RMM rmm_no;LOADPM and pressing the Enter key. where rmm_no is the number of the RMM associated with the new NT2X09 card...
Page 374 8-34 OPM card replacement procedures NT2X09 in an OPM RMM (continued) 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. where tape_no is the number of the tape drive containing the PM load ﬁles Go to step 30.
Page 375 OPM card replacement procedures 8-35 NT2X09 in an OPM RMM (continued) Leave the disk utility by typing >QUIT and pressing the Enter key. Reload the RMM by typing >LOADPM and pressing the Enter key. load failed step 36 load passed step 31 Return the RMM to service by typing >RTS...
Page 376 8-36 OPM card replacement procedures NT2X09 in an OPM RMM (end) Go to step 37. Obtain further assistance in replacing this card by contacting the personnel responsible for higher level of support. You have completed this procedure. 297-8361-550 Standard 04.01 September 2000...
Page 377 OPM card replacement procedures 8-37 NT2X10 in an OPM RMM Application Use this procedure to replace the following card in an RMM. Suffixes Name NT2X10 AA, AC, Line Test Unit Analog Card (LTUA) Common procedures The replacing a card procedure is referenced in this procedure. Action The following ﬂowchart is a summary of the procedure.
Page 378 8-38 OPM card replacement procedures NT2X10 in an OPM RMM (continued) Summary of card replacement procedure for an NT2X10 card in an RMM This flowchart summarizes the procedure. At TRKS;TTP level Use the instructions in the of the MAP terminal procedure that follows this post the RMM flowchart to perform the...
Page 379 OPM card replacement procedures 8-39 NT2X10 in an OPM RMM (continued) Replacing an NT2X10 card 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. At the MAP display Access the TTP level of the MAP and post the Line Test Unit to be replaced by typing...
Page 380: Nt2X10 In An Opm Rmm
8-40 OPM card replacement procedures NT2X10 in an OPM RMM (end) At the RMM shelf WARNING Static electricity damage Wear a wrist strap connected to the wrist strap grounding point of a frame supervisory panel (FSP) while handling circuit cards. This protects the cards against damage caused by static electricity.
Page 381 OPM card replacement procedures 8-41 NT2X11 in an OPM RMM Application Use this procedure to replace the following card in an RMM. Suffixes Name NT2X11 AA, AB, Line Test Unit Digital Card (LTUD) AC, AD, Common procedures The replacing a card procedure is referenced in this procedure. Action The following ﬂowchart is a summary of the procedure.
Page 382 8-42 OPM card replacement procedures NT2X11 in an OPM RMM (continued) Summary of card replacement procedure for an NT2X11 card in an RMM This flowchart summarizes the procedure. At TTP level, post Use the instructions in the the RMM procedure that follows this flowchart to perform the procedure.
Page 383 OPM card replacement procedures 8-43 NT2X11 in an OPM RMM (continued) Replacing an NT2X11 card 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. At the MAP display Access the TTP level of the MAP and post the line test unit to be replaced by typing...
Page 384: Nt2X11 In An Opm Rmm
8-44 OPM card replacement procedures NT2X11 in an OPM RMM (end) At the RMM shelf Replace the NT2X11 card using the common replacing a card procedure in this document. When you have completed the procedure, return to this point. At the MAP display Test the new NT2X11 card by typing >TST and pressing the Enter key.
Page 385: Nt2X48 In An Opm Rmm
OPM card replacement procedures 8-45 NT2X48 in an OPM RMM Application Use this procedure to replace the following card in an RMM. Suffixes Name NT2X48 Digital 4-channel Digitone Receiver Common procedures The replacing a card procedure is referenced in this procedure. Action The following ﬂowchart is a summary of the procedure.
Page 386 8-46 OPM card replacement procedures NT2X48 in an OPM RMM (continued) Summary of card replacement procedure for an NT2X48 card in an RMM This flowchart summarizes the At TRKS;TTP level procedure. of the MAP terminal post the RMM Use the instructions in the procedure that follows this flowchart to perform the Is the...
Page 387 OPM card replacement procedures 8-47 NT2X48 in an OPM RMM (continued) Replacing an NT2X48 card in an RMM At the MAP display Obtain a replacement card. Ensure that 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 and post the ESA digitone receivers associated with the card to be replaced by typing >MAPCI;MTC;TRKS;TTP;POST P RMM rmm_no ckt_no...
Page 388 8-48 OPM card replacement procedures NT2X48 in an OPM RMM (continued) At the RMM shelf WARNING Static electricity damage Wear a wrist strap connected to the wrist strap grounding point of a frame supervisory panel (FSP) while handling circuit cards. This protects the cards against damage caused by static electricity.
Page 389 OPM card replacement procedures 8-49 NT2X48 in an OPM RMM (end) Installation busy the trunks that are associated with the new NT2X48 card by typing >BSY INB ALL and pressing the Enter key. Note: ESAdigitonereceiversshouldalwaysbeinanINBstatewhenthe RLCM is under CC control, to prevent CC access. The ESA processor will turn the circuits up to an idle state when the RLCM is in the ESA environment.
Page 390: Nt2X57 In An Opm Rmm
8-50 OPM card replacement procedures NT2X57 in an OPM RMM Application Use this procedure to replace the following card in an RMM. Suffixes Name NT2X57 Signal Distribution Card (SD) Common procedures The common replacing a card procedure is referenced in this procedure. Action The following ﬂowchart is a summary of the procedure.
Page 391 OPM card replacement procedures 8-51 NT2X57 in an OPM RMM (continued) Summary of card replacement procedure for an NT2X57 card in an RMM This flowchart summarizes the procedure. Access the TRKS;TTP level of Use the instructions in the the MAP terminal procedure that follows this flowchart to perform the procedure.
Page 392 8-52 OPM card replacement procedures NT2X57 in an OPM RMM (continued) Replacing an NT2X57 card in an RMM At the MAP display Obtain a replacement card. Ensure that 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 and post the signal distribution circuits on the card to be replaced by typing >MAPCI;MTC;TRKS;TTP;POST P RMM rmm_no ckt_no...
Page 393 OPM card replacement procedures 8-53 NT2X57 in an OPM RMM (end) At the MAP display Repost to verify the signal distribution circuits on the card that was replaced by typing >POST P RMM rmm_no ckt_no and pressing the Enter key. where rmm_no is the number of the RMM shelf where the card was replaced...
Page 394: Nt2X59 In An Opm Rmm
8-54 OPM card replacement procedures NT2X59 in an OPM RMM Application Use this procedure to replace the following card in an RMM. Suffixes Name NT2X59 Group CODEC Card Common procedures None Action The following ﬂowchart is a summary of the procedure. To replace the card, use the instructions in the procedure that follows the ﬂowchart.
Page 395 OPM card replacement procedures 8-55 NT2X59 in an OPM RMM (continued) This flowchart summarizes the procedure. At MAP PM level, post the RMM Use the instructions in the procedure that follows this flowchart to perform the procedure. BSY the RMM Replace the card with one with identical PEC...
Page 396 8-56 OPM card replacement procedures NT2X59 in an OPM RMM (continued) Replacing an NT2X59 card in an RMM At your current location Proceed only if you were either directed to this card replacement procedure from a step in a maintenance procedure, are using the procedure to verify or accept cards, or were directed to this procedure by your maintenance support group.
Page 397 OPM card replacement procedures 8-57 NT2X59 in an OPM RMM (continued) Example of a MAP display: Trks APPL 3SysB SysB ManB OffL CBsy ISTb InSv 0 Quit 2 Post_ ManB 5 Trnsl 6 Tst 7 Bsy 8 RTS 9 OffL 10 LoadPM 11 Disp_ 12 Next...
Page 398 8-58 OPM card replacement procedures NT2X59 in an OPM RMM (continued) Locate the card to be removed on the appropriate shelf. Open the locking levers on the card to be replaced and gently pull the card towards you until it clears the shelf. Ensure that the replacement card has the same PEC including sufﬁx, as the card you just removed.
Page 399 OPM card replacement procedures 8-59 NT2X59 in an OPM RMM (continued) Seat and lock the card. 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. Close the locking levers.
Page 400 8-60 OPM card replacement procedures NT2X59 in an OPM RMM (end) At the MAP display Load the RMM by typing >LOADPM and pressing the Enter key. Test the RMM by typing >TST and pressing the Enter key. Example of a MAP response: Test Passed Test Failed If TST...
Page 401 OPM card replacement procedures 8-61 NT2X70 in an OPM HIE Application Use this procedure to replace the following card in the host interface equipment (HIE) shelf. Suffixes Name NT2X70 AA, AB, Power Converter (5V/12V) AC, AD, AE, AF Common procedures The common replacing a card procedure is referenced in this procedure.
Page 402: Nt2X70 In An Opm Hie
8-62 OPM card replacement procedures NT2X70 in an OPM HIE (continued) Summary of card replacement procedure for an NT2X70 card in an HIE shelf This flowchart summarizes the procedure. Power up the At PM level, post Use the instructions in the NT2X70 card in and busy the procedure that follows this...
Page 403 OPM card replacement procedures 8-63 NT2X70 in an OPM HIE (continued) Replacing an NT2X70 card in an HIE shelf At your current location Proceed only if you were either directed to this card replacement procedure from a step in a maintenance procedure, are using the procedure to verify or accept cards, or were directed to this procedure by your maintenance support group.
Page 404 8-64 OPM card replacement procedures NT2X70 in an OPM HIE (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 power converters only during periods of low trafﬁc.
Page 405 OPM card replacement procedures 8-65 NT2X70 in an OPM HIE (continued) At the HIE shelf WARNING Static electricity damage Wear a wrist strap connected to the wrist strap grounding point of a frame supervisory panel (FSP) while handling circuit cards. This protects the cards against damage caused by static electricity.
Page 406 8-66 OPM card replacement procedures NT2X70 in an OPM HIE (continued) If you were directed to this procedure from another maintenance procedure, return now to the procedure that directed you here and continue as directed; otherwise, continue with step 13. At the MAP display Post the OPM associated with the faulty NT2X70 card by typing >POST LCM site_name frame_no lcm_no...
Page 407 OPM card replacement procedures 8-67 NT2X70 in an OPM HIE (continued) Determine the type of device on which the PM load ﬁles are located. If load ﬁles are located on tape step 18 IOC disk step 24 SLM disk step 29 Locate the tape that contains the PM load ﬁles.
Page 408 8-68 OPM card replacement procedures NT2X70 in an OPM HIE (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, obtained in step 24.
Page 409 OPM card replacement procedures 8-69 NT2X70 in an OPM HIE (continued) Return the LCM unit to service by typing >RTS and pressing the Enter key. If RTS passed step 69 failed step 73 At the MAP display Post the OPM associated with the faulty NT2X70 card by typing >POST LCM site_name frame_no lcm_no and pressing the Enter key.
Page 410 8-70 OPM card replacement procedures NT2X70 in an OPM HIE (continued) At the HIE shelf WARNING Static electricity damage Wear a wrist strap connected to the wrist strap grounding point of a frame supervisory panel (FSP) while handling circuit cards. This protects the cards against damage caused by static electricity.
Page 411 OPM card replacement procedures 8-71 NT2X70 in an OPM HIE (continued) If you were directed to this procedure from another maintenance procedure, return now to the procedure that directed you here and continue as directed; otherwise, continue with step 46. At the MAP display Post the OPM associated with the faulty NT2X70 card by typing >POST LCM site_name frame_no lcm_no...
Page 412 8-72 OPM card replacement procedures NT2X70 in an OPM HIE (continued) Determine the type of device on which the PM load ﬁles are located. If load ﬁles are located on tape step 51 IOC disk step 57 SLM disk step 62 Locate the tape that contains the PM load ﬁles.
Page 413 OPM card replacement procedures 8-73 NT2X70 in an OPM HIE (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, obtained in step 57.
Page 414 8-74 OPM card replacement procedures NT2X70 in an OPM HIE (end) Return the ESA processor to service by typing >RTS and pressing the Enter key. If RTS passed step 69 failed step 73 Send any faulty cards for repair according to local procedure. Record the following items in ofﬁce records: •...
Page 415 OPM card replacement procedures 8-75 NT2X90 in an OPM RMM Application Use this procedure to replace the following card in an RMM. Suffixes Name NT2X90 AB, AC, Incoming/outgoing Transmission Test Trunk Circuit (TTT) Common procedures None Action The following ﬂowchart is a summary of the procedure. To replace the card, use the instructions in the procedure that follows the ﬂowchart.
Page 416: Nt2X90 In An Opm Rmm
8-76 OPM card replacement procedures NT2X90 in an OPM RMM (continued) Summary of card replacement procedure for an NT2X90 card in an RMM This flowchart summarizes the procedure. At MAP PM level, post the RMM Use the instructions in the procedure that follows this flowchart to perform the procedure.
Page 417 OPM card replacement procedures 8-77 NT2X90 in an OPM RMM (continued) Replacing an NT2X90 card in an RMM At your current location Proceed only if you were either directed to this card replacement procedure from a step in a maintenance procedure, are using the procedure to verify or accept cards, or were directed to this procedure by your maintenance support group.
Page 418 8-78 OPM card replacement procedures NT2X90 in an OPM RMM (continued) Example of a MAP display: Trks APPL 4SysB SysB ManB OffL CBsy ISTb InSv 0 Quit 2 Post_ ManB 5 Trnsl 6 Tst 7 Bsy 8 RTS 9 OffL 10 LoadPM 11 Disp_ 12 Next...
Page 419 OPM card replacement procedures 8-79 NT2X90 in an OPM RMM (continued) Open the locking levers on the card to be replaced and gently pull the card towards you until it clears the shelf. Ensure that the replacement card has the same PEC including sufﬁx, as the card you just removed.
Page 420 8-80 OPM card replacement procedures NT2X90 in an OPM RMM (continued) DANGER Equipment damage Take these precautions when removing or inserting a card:1. Do not apply direct pressure to the components.2 .Do not force the cards into the slots. 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.
Page 421 OPM card replacement procedures 8-81 NT2X90 in an OPM RMM (continued) Use the following information to determine the next step in this procedure. If you entered this procedure from an alarm clearing proce- step 15 dure from other step 10 At the MAP display Test the RMM by typing >TST...
Page 422 8-82 OPM card replacement procedures NT2X90 in an OPM RMM (end) and pressing the Enter key. If the RTS passes step 12 fails step 16 Send any faulty cards for repair according to local procedure. Record the following items in ofﬁce records: •...
Page 423 OPM card replacement procedures 8-83 NT3X09 in an OPM RMM Application Use this procedure to replace the following card in an RMM. Suffixes Name NT3X09 AA, BA Remote Metallic Access (MTA) card Common procedures The common replacing a card procedure is referenced in this procedure. Action The following ﬂowchart is a summary of the procedure.
Page 424: Nt3X09 In An Opm Rmm
8-84 OPM card replacement procedures NT3X09 in an OPM RMM (continued) Summary of replacing an NT3X09 card in an RMM This flowchart summarizes the procedure. Use the instructions that Is the suffix follow this flowchart to BA or AA? perform the procedure. At the PM;PES At TTP level, post level post the...
Page 425 OPM card replacement procedures 8-85 NT3X09 in an OPM RMM (continued) Replacing an NT3X09 card 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. At the MAP terminal Determine the sufﬁx of the NT3X09 card to be replaced.
Page 426 8-86 OPM card replacement procedures NT3X09 in an OPM RMM (continued) Busy the trunks that are associated with the card to be replaced by typing >BSY ; NEXT and pressing the Enter key. Note: Repeat this step for all circuits associated with the faulty NT3X09AA/BA card to be replaced.
Page 427 OPM card replacement procedures 8-87 NT3X09 in an OPM RMM (continued) Access the PES level of the MAP terminal and post the PES that contains the faulty NT3X09 card to be replaced by typing >MAPCI;MTC;PM;PES; POST pes_no and pressing the Enter key. where pes_no is the number of the OPM containing the faulty NT3X09 card...
Page 428 8-88 OPM card replacement procedures NT3X09 in an OPM RMM (end) Trks OPMPES SysB ManB OffL CBSY ISTB InSV 0 Quit 2 Post_ AMBER GREEN OFFL OPMPES 6 Tst_ OPMPES 2 Cond: REM2 7 Bsy_ Audit Week 8 Rts_ Common Rectifiers –...
Page 429: Nt6X17 In An Opm
OPM card replacement procedures 8-89 NT6X17 in an OPM Application Use this procedure to replace the following card in an OPM. Suffixes Name NT6X17 AA, AB, AC Standard Line Circuit Type A (POTS) Common procedures The common replacing a line card procedure is referenced in this procedure. Action The following ﬂowchart is a summary of the procedure.
Page 430 8-90 OPM card replacement procedures NT6X17 in an OPM (continued) Summary of replacing an NT6X17 card in an OPM This flowchart summarizes At LNS;LTP level, the procedure. post the line card Use the instructions that follow this flowchart to perform the procedure. Is the line status ManB? Busy the line card...
Page 431 OPM card replacement procedures 8-91 NT6X17 in an OPM (continued) Replacing an NT6X17 card in an OPM 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 that is to be removed.
Page 432 8-92 OPM card replacement procedures NT6X17 in an OPM (end) At the MAP terminal Test the line card just replaced by typing >DIAG and pressing the Enter key. If DIAG passed step 7 failed step 10 Return the line card to service by typing >RTS and pressing the Enter key.
Page 433: Nt6X18 In An Opm
OPM card replacement procedures 8-93 NT6X18 in an OPM Application Use this procedure to replace the following card in an OPM. Suffixes Name NT6X18 AA, AB Line Card Type B (Coin/Ground Start) NT6X18 World Line Card Type B Common procedures The common replacing a line card procedure is referenced in this procedure.
Page 434 8-94 OPM card replacement procedures NT6X18 in an OPM (continued) Summary of replacing an NT6X18 card in an OPM This flowchart summarizes the At LNS;LTP level, procedure. post the line card Use the instructions in the procedure that follows this flowchart to perform the Is the line procedure.
Page 435 OPM card replacement procedures 8-95 NT6X18 in an OPM (continued) Replacing an NT6X18 card in an OPM 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 that is to be removed.
Page 436 8-96 OPM card replacement procedures NT6X18 in an OPM (end) At the MAP terminal ATTENTION There is a new diagnostics test for NT6X18AA/AB cards. This NT6X18 card may be good. See the NT6X18 line card description in the general maintenance section of this book for information on running an enhanced diagnostics.
Page 437: Nt6X19 In An Opm
OPM card replacement procedures 8-97 NT6X19 in an OPM Application Use this procedure to replace the following card in an OPM. Suffixes Name NT6X19 Message Waiting Line Card Common procedures The common replacing a line card procedure is referenced in this procedure. Action The following ﬂowchart is a summary of the procedure.
Page 438 8-98 OPM card replacement procedures NT6X19 in an OPM (continued) Summary of replacing an NT6X19 card in an OPM This flowchart summarizes the At LNS;LTP level, procedure. post the line card Use the instructions in the procedure that follows this flowchart to perform the Is the line procedure.
Page 439 OPM card replacement procedures 8-99 NT6X19 in an OPM (continued) Replacing an NT6X19 card in an OPM 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 that is to be removed.
Page 440 8-100 OPM card replacement procedures NT6X19 in an OPM (end) At the MAP terminal Test the line card just replaced by typing >DIAG and pressing the Enter key. If DIAG passed step 7 failed step 10 Return the line card to service by typing >RTS and pressing the Enter key.
Page 441: Nt6X20 In An Opm
OPM card replacement procedures 8-101 NT6X20 in an OPM Application Use this procedure to replace the following card in an OPM. Suffixes Name NT6X20 Message Waiting Converter Common procedures The common replacing a line card procedure is referenced in this procedure. Action The following ﬂowchart is a summary of the procedure.
Page 442 8-102 OPM card replacement procedures NT6X20 in an OPM (continued) Summary of card replacement procedure for an NT6X20 card OPM This flowchart summarizes the At LNS;LTP level, procedure. post the line card Use the instructions in the procedure that follows this flowchart to perform the Is the line procedure.
Page 443 OPM card replacement procedures 8-103 NT6X20 in an OPM (continued) Replacing an NT6X20 card in an OPM 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 that is to be removed.
Page 444 8-104 OPM card replacement procedures NT6X20 in an OPM (end) At the MAP terminal Test the line card just replaced by typing >DIAG and pressing the Enter key. If DIAG passed step 7 failed step 10 Return the line card to service by typing >RTS and pressing the Enter key.
Page 445: Nt6X21 In An Opm
OPM card replacement procedures 8-105 NT6X21 in an OPM Application Use this procedure to replace the following card in an OPM. Suffixes Name NT6X21 AA, AB, AC, Line card type C, Meridian Digital Centrex (MDC), electronic business set Common procedures The common replacing a line card procedure is referenced in this procedure.
Page 446 8-106 OPM card replacement procedures NT6X21 in an OPM (continued) Summary of replacing an NT6X21 card in an OPM This flowchart summarizes the procedure. Use the instructions in the At LNS;LTP level, procedure that follows this post the line card flowchart to perform the procedure.
Page 447 OPM card replacement procedures 8-107 NT6X21 in an OPM (continued) Replacing an NT6X21 card in an OPM 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 448 8-108 OPM card replacement procedures NT6X21 in an OPM (end) Busy the line by typing >BSY and pressing the Enter key. At the OPM cabinet Go to the common replacing a line card procedure in this document. When you have completed the procedure, return to this point. At the MAP terminal Test the line card just replaced by typing >DIAG...
Page 449: Nt6X27 In An Opm Hie
OPM card replacement procedures 8-109 NT6X27 in an OPM HIE Application Use this procedure to replace the following card in an HIE shelf. Suffixes Name NT6X27 PCM-30 Interface Common procedures The common replacing a card procedure is referenced in this procedure. Action The following ﬂowchart is a summary of the procedure.
Page 450 8-110 OPM card replacement procedures NT6X27 in an OPM HIE (continued) Summary of card replacement procedure for an NT6X27 card in an in HIE This flowchart summarizes the Determine links procedure. serviced by card to be replaced Use the instructions in the procedure that follows this flowchart to perform the Busy ILCM unit if...
Page 451 OPM card replacement procedures 8-111 NT6X27 in an OPM HIE (continued) Replacing an NT6X27 card in an HIE 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 that is to be removed.
Page 452 8-112 OPM card replacement procedures NT6X27 in an OPM HIE (continued) Display P-side link information by typing > TRNSL P and pressing the Enter key. Example of a MAP response: NT6X27 port numbers Link 2: ILCM REM1 00 0 0;Cap MS;Status:OK ;MsgCond: OPN Link 6: ILCM REM1 00 0 1;Cap MS;Status:SysB ;MsgCond: CLS...
Page 453 OPM card replacement procedures 8-113 NT6X27 in an OPM HIE (continued) Busy ILCM unit by typing >BSY UNIT lcm_unit and pressing the Enter key. where lcm_unit is the ILCM unit to be busied (0 or 1) Note: For ILCM unit 0, card is in slot 19. For ILCM unit 1, card is in slot 20. Post the C-side peripheral module, previously posted in step 5, where the PRLCM is interfaced by typing >POST host_pm host_pm_no...
Page 454 8-114 OPM card replacement procedures NT6X27 in an OPM HIE (continued) At the MAP display Test the links busied in step 12 by typing >TST LINK link_no and pressing the Enter key. where link_no is one of two links associated with the replacement card Note: Repeat this step for the other link associated with the replacement card.
Page 455 OPM card replacement procedures 8-115 NT6X27 in an OPM HIE (end) site is the site name of the PRLCM (alphanumeric) frame is the frame number of the PRLCM cabinet lcm_no is the number of the ILCM Return the busied unit to service by typing >RTS UNIT lcm_unit and pressing the Enter key.
Page 456: Nt6X36 In An Opm
8-116 OPM card replacement procedures NT6X36 in an OPM Application Use this procedure to replace the following card in an OPM. Suffixes Name NT6X36 AA, AB FSP alarm card NT6X36 FSP alarm and control card Common procedures None Action The following ﬂowchart is a summary of the procedure. To replace the card, use the instructions in the procedure that follows the ﬂowchart.
Page 457 OPM card replacement procedures 8-117 NT6X36 in an OPM (continued) Summary of replacing an NT6X36 card in an OPM Open the FSP This flowchart summarizes the procedure. Use the instructions that follow to perform the procedure. Replace the faulty card Close the FSP Reset the converter...
Page 458 8-118 OPM card replacement procedures NT6X36 in an OPM (continued) Replacing an NT6X36 card in an OPM At your Current Location WARNING Static electricity damage Wear a wrist strap connected to the wrist-strap grounding point of a frame supervisory panel (FSP) or a modular supervisory panel (MSP) while handling circuit cards.
Page 459 OPM card replacement procedures 8-119 NT6X36 in an OPM (continued) FSP Alarm and control cards NT0X91AA card in slot CD 3 NT0X91AE NT6X36AA card in slot card in slot CD 2 cover CD 1 Insert the replacement alarm and control card. Close the FSP panel.
Page 460 8-120 OPM card replacement procedures NT6X36 in an OPM (end) If you were not directed to this procedure from a maintenance step 12 procedure Return to the maintenance procedure that sent you to this procedure and continue as directed. For further assistance, contact the personnel responsible for the next level of support.
Page 461 OPM card replacement procedures 8-121 NT6X45 in an OPM HIE Application Use this procedure to replace the following card in an HIE shelf. Suffixes Name NT6X45 OPM ESA Processor (Master Processor-ESA) Note: NT6X45 with sufﬁx AF is the ESA processor supported only for OPM ESA.
Page 462 8-122 OPM card replacement procedures NT6X45 in an OPM HIE (continued) Summary of replacing an NT6X45 card in an HIE This flowchart summarizes the procedure. At PM level, post Use the instructions in the and busy the ESA procedure that follows this processor flowchart to perform the procedure.
Page 463 OPM card replacement procedures 8-123 NT6X45 in an OPM HIE (continued) Replacing an NT6X45 card in an HIE At your Current Location Obtain a replacement card. Verify that the replacement card has the same product engineering code (PEC), including sufﬁx, as the card to be removed. If you were directed to this procedure from another maintenance procedure, go to step 5;...
Page 464 8-124 OPM card replacement procedures NT6X45 in an OPM HIE (continued) load fails step 29 Determine the type of device on which the PM load ﬁles are located. If load ﬁles are located on tape step 9 IOC disk step 15 SLM disk step 20 Locate the tape that contains the PM load ﬁles.
Page 465 OPM card replacement procedures 8-125 NT6X45 in an OPM HIE (continued) 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 step15 Leave the disk utility by typing >QUIT...
Page 466: Nt6X45 In An Opm Hie
8-126 OPM card replacement procedures NT6X45 in an OPM HIE (end) If loadpm passed step 26 Return the ESA processor to service by typing >RTS and pressing the Enter key. If RTS passed step 27 failed step 29 Send any faulty cards for repair according to local procedure. Record the following items in ofﬁce records: •...
Page 467 OPM card replacement procedures 8-127 NT6X47 in an OPM HIE Application Use this procedure to replace the following card in an HIE shelf. Suffixes Name NT6X47 AB, AC Master Processor Memory (ESA) Plus Common procedures The common replacing a card procedure is referenced in this procedure. Action The following ﬂowchart is a summary of the procedure.
Page 468 8-128 OPM card replacement procedures NT6X47 in an OPM HIE (continued) Summary of replacing an NT6X47 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 procedure.
Page 469 OPM card replacement procedures 8-129 NT6X47 in an OPM HIE (continued) Replacing an NT6X47 in an HIE At your Current Location Obtain a replacement card. Verify that the replacement card has the same product engineering code (PEC), including sufﬁx, as the card to be removed. If you were directed to this procedure from another maintenance procedure, go to step 5;...
Page 470 8-130 OPM card replacement procedures NT6X47 in an OPM HIE (continued) At the MAP terminal Load the ESA processor by typing >LOADPM and pressing the Enter key. message “loadfile not found in step 8 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 471 OPM card replacement procedures 8-131 NT6X47 in an OPM HIE (continued) 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 472: Nt6X47 In An Opm Hie
8-132 OPM card replacement procedures NT6X47 in an OPM HIE (end) and pressing the Enter key. Reload the ESA processor by typing >LOADPM and pressing the Enter key. load fails step 29 load passes step 26 Return the ESA processor to service by typing >RTS and pressing the Enter key.
Page 473: Nt6X50 In An Opm Hie
OPM card replacement procedures 8-133 NT6X50 in an OPM HIE Application Use this procedure to replace the following card in an HIE shelf. Suffixes Name NT6X50 DS-1 Interface Common procedures The common replacing a card procedure is referenced in this procedure. Action The following ﬂowchart is a summary of the procedure.
Page 474 8-134 OPM card replacement procedures NT6X50 in an OPM HIE (continued) Summary of card replacement procedure for an NT6X50 card in an HIE This flowchart summarizes the Determine links procedure. serviced by card to be replaced Use the instructions in the procedure that follows this flowchart to perform the Busy LCM unit if...
Page 475 OPM card replacement procedures 8-135 NT6X50 in an OPM HIE (continued) Replacing an NT6X50 card in an HIE 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 that is to be removed.
Page 476 8-136 OPM card replacement procedures NT6X50 in an OPM HIE (continued) Display P-side link information by typing > TRNSL P and pressing the Enter key. Example of a MAP response: NT6X50 port numbers 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...
Page 477 OPM card replacement procedures 8-137 NT6X50 in an OPM HIE (continued) Busy LCM unit 0 for card in slot 19 or LCM unit 1 for card in slot 20 by typing >BSY UNIT lcm_unit and pressing the Enter key. where lcm_unit is the OPM unit to be busied (0 for card in slot 19 or 1 for card in slot 20) Post the C-side peripheral module, previously posted in step 5, where the...
Page 478 8-138 OPM card replacement procedures NT6X50 in an OPM HIE (continued) At the MAP display Test the links busied in step 12 by typing >TST LINK link_no and pressing the Enter key. where link_no is one of two links associated with the replacement card Note: Repeat this step for the other link associated with the replacement card.
Page 479 OPM card replacement procedures 8-139 NT6X50 in an OPM HIE (end) If LCM unit is not ManB step 22 Post the LCM by typing >POST LCM site frame lcm and pressing the Enter key. where site is the site name of the OPM (alphanumeric) frame is the frame number of the OPM (0 to 511) is the number of the LCM...
Page 480: Nt6X51 In An Opm
8-140 OPM card replacement procedures NT6X51 in an OPM Application Use this procedure to replace the following card in an OPM. Suffixes Name NT6X51 AA, AB, LCM Processor Card Common procedures The common replacing a card procedure is referenced in this procedure. Action The following ﬂowchart is a summary of the procedure.
Page 481 OPM card replacement procedures 8-141 NT6X51 in an OPM (continued) Summary of card replacement procedure for NT6X51 card in an OPM This flowchart summarizes the procedure. At PM level of MAP, Use the instructions in the post the LCM procedure that follows this flowchart to perform the procedure.
Page 482 8-142 OPM card replacement procedures NT6X51 in an OPM (continued) Replacing an NT6X51 card in an OPM 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 483 OPM card replacement procedures 8-143 NT6X51 in an OPM (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 step 6 ManB step 31 Offl...
Page 484 8-144 OPM card replacement procedures NT6X51 in an OPM (continued) load passed step 27 load failed step 30 Determine the type of device on which the PM load ﬁles are located. If load ﬁles are located on tape step 10 IOC disk step 16 SLM disk...
Page 485 OPM card replacement procedures 8-145 NT6X51 in an OPM (continued) 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. Access the disk utility level of the MAP by typing >DSKUT and pressing the Enter key.
Page 486 8-146 OPM card replacement procedures NT6X51 in an OPM (end) and pressing the Enter key. where lcm_unit is the LCM unit to be loaded (0 or 1) load failed step 30 load passed step 27 Return the LCM unit to service by typing >RTS UNIT lcm_unit and pressing the Enter key.
Page 487: Nt6X52 In An Opm
OPM card replacement procedures 8-147 NT6X52 in an OPM Application Use this procedure to replace the following card in an OPM. Suffixes Name NT6X52 AA, AB Digital Control Card (DCC) Common procedures The common replacing a card procedure is referenced in this procedure. Action The following ﬂowchart is a summary of the procedure.
Page 488 8-148 OPM card replacement procedures NT6X52 in an OPM (continued) Summary of card replacement procedures for an NT6X52 card in an OPM This flowchart summarizes the Return the busied At PM level of MAP, procedure. LCM unit to service post the LCM Use the instructions in the procedure that follows this flowchart to perform the...
Page 489 OPM card replacement procedures 8-149 NT6X52 in an OPM (continued) Replacing an NT6X52 card in an OPM 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 that is to be removed.
Page 490 8-150 OPM card replacement procedures NT6X52 in an OPM (continued) lcm_unit is the LCM unit to be loaded (0 or 1) message “loadfile not found in step 8 directory" is received load passed step 26 load failed step 29 Determine the type of device on which the PM load ﬁles are located. If load ﬁles are located on tape step 9...
Page 491 OPM card replacement procedures 8-151 NT6X52 in an OPM (continued) 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. Access the disk utility level of the MAP by typing >DSKUT and pressing the Enter key.
Page 492 8-152 OPM card replacement procedures NT6X52 in an OPM (end) 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 step 26 Return the LCM unit to service by typing...
Page 493: Nt6X53 In An Opm
OPM card replacement procedures 8-153 NT6X53 in an OPM Application Use this procedure to replace the following card in an OPM Suffixes Name NT6X53 AA, BA, Power Converter Card (5V/15V) Common procedures None Action The following ﬂowchart is a summary of the procedure. To replace the card, use the instructions in the procedure that follows the ﬂowchart.
Page 494 8-154 OPM card replacement procedures NT6X53 in an OPM (continued) Summary of card replacement for NT6X53 card in an OPM This flowchart summarizes At PM level of MAP, Power up the unit the procedure. post the LCM Use the instructions that follows this flowchart to perform the procedure.
Page 495 OPM card replacement procedures 8-155 NT6X53 in an OPM (continued) Replacing an NT6X53 card in an OPM At your Current Location Proceed only if you were either directed to this card replacement procedure from a step in a maintenance procedure, are using the procedure to verify or accept cards, or were directed to this procedure by your maintenance support group.
Page 496 8-156 OPM card replacement procedures NT6X53 in an OPM (continued) Busy the LCM unit containing the faulty card by typing >BSY UNIT lcm_unit and pressing the Enter key. where lcm_unit is the LCM unit (0 or 1) to be busied Example of a MAP display: Trks Appl...
Page 497 OPM card replacement procedures 8-157 NT6X53 in an OPM (continued) At the OPM cabinet Turn the circuit breaker OFF for the unit in which the power converter is being replaced. Use the table below to determine which FSP circuit breaker serves the unit.
Page 498 8-158 OPM card replacement procedures NT6X53 in an OPM (continued) DANGER Card damage—transport Take these precautions to protect the circuit cards from electrical and mechanical damage during transportation:When handling a circuit card not in an electrostatic discharge (ESD) protective container, stand on a conductive ﬂoor mat and wear a wrist strap connected, through a 1-megohm resistor, to a suitably grounded object, such as a metal workbench or a DMS frame (Northern...
Page 499 OPM card replacement procedures 8-159 NT6X53 in an OPM (continued) Open the locking levers on the card to be replaced and gently pull the card towards you until it clears the shelf. Ensure that the replacement card has the same PEC including sufﬁx, as the card you just removed.
Page 500 8-160 OPM card replacement procedures NT6X53 in an OPM (continued) Seat and lock the card. 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. Close the locking levers.
Page 501 OPM card replacement procedures 8-161 NT6X53 in an OPM (continued) Determine the correct FSP 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 LCA 0...
Page 502 8-162 OPM card replacement procedures NT6X53 in an OPM (continued) load fails step 37 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.
Page 503 OPM card replacement procedures 8-163 NT6X53 in an OPM (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.
Page 504 8-164 OPM card replacement procedures NT6X53 in an OPM (end) lcm_unit is the LCM unit (0 or 1)to be loaded load failed step 37 load passed step 32 Use the following information to determine the next step in this procedure. If you entered this procedure an alarm clearing procedure step 36...
Page 505: Nt6X54 In An Opm
OPM card replacement procedures 8-165 NT6X54 in an OPM Application Use this procedure to replace the following card in an OPM. 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 506 8-166 OPM card replacement procedures NT6X54 in an OPM (continued) Summary of card replacement procedure for an NT6X54 card in an OPM 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...
Page 507 OPM card replacement procedures 8-167 NT6X54 in an OPM (continued) Replacing an NT6X54 in an OPM 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: DCC BIC Looparound and go to step 10.
Page 508 8-168 OPM card replacement procedures NT6X54 in an OPM (continued) 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 Unit–1: InsV...
Page 509 OPM card replacement procedures 8-169 NT6X54 in an OPM (continued) Example of a MAP response; Please confirm (“YES,” “Y,” “NO,” or “N”): Conﬁrm the system prompt by typing >YES and pressing the Enter key. Go to step 10. Busy both line subgroups associated with the OPM drawer in which the card is being replaced by typing >BSY DRWR...
Page 510 8-170 OPM card replacement procedures NT6X54 in an OPM (continued) 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 Unit–1: InsV...
Page 511 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 512 8-172 OPM card replacement procedures NT6X54 in an OPM (continued) Push up on the drawer latch with your thumb and pull the drawer out approximately 15.0 cm (about 6.0 in). Remove the BIC to be replaced by following these substeps: Open the locking levers on the BIC.
Page 513 OPM card replacement procedures 8-173 NT6X54 in an OPM (end) Note: Repeat this step for the other line subgroup associated with the line drawer. If RTS passed step 24 failed step 26 Return the line subgroups to service by typing >RTS DRWR and pressing the Enter key.
Page 514: Nt6X60 In An Opm Hie
8-174 OPM card replacement procedures NT6X60 in an OPM HIE Application Use this procedure to replace the following card in a host interface environment (HIE). Suffixes Name NT6X60 AA, BA, North American ringing Generator (RG) CA , DA A summary of the card replacement procedure for the NT6X60 in a HIE is shown below.
Page 515 OPM card replacement procedures 8-175 NT6X60 in an OPM HIE (continued) Summary of card replacement procedures for an 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...
Page 516 8-176 OPM card replacement procedures NT6X60 in an OPM HIE (continued) Replacing an NT6X60 card 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 517 OPM card replacement procedures 8-177 NT6X60 in an OPM HIE (continued) LINKS 00 0 REM1 ISTb OOS: Cside 0 Pside 0 ISTb /RG:1 Unit 0: InSv Unit 1: /RG:1 11 11 11 11 11RG: Pref 0 ISTb Stby 1 InSv Drwr: 01 23 45 67 89 01 23 45 67 89 ..
Page 518 8-178 OPM card replacement procedures NT6X60 in an OPM HIE (continued) and pressing the Enter key. where lcm_unit is the LCM unit (0 or 1) as seen in step 5 At the OPM cabinet Turn OFF the circuit breaker for the ringing generator to be replaced by using the information in the following table: IfCircuit breaker DoRinging Generator...
Page 519 OPM card replacement procedures 8-179 NT6X60 in an OPM HIE (continued) At the HIE Remove the NT6X60 card as follows: 1. Locate the card to be removed on the appropriate shelf. 2. Open the locking levers on the card to be replaced and gently pull the card towards you until it clears the shelf.
Page 520 8-180 OPM card replacement procedures NT6X60 in an OPM HIE (continued) where lcm_unit is the LCM unit (0 or 1) Note: Repeat this step until both units of the LCM are aligned to the new If SWRG command passed step 19 failed step 23 Test the new RG by typing...
Page 521 OPM card replacement procedures 8-181 NT6X60 in an OPM HIE (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 24 Obtain further assistance in replacing this card by contacting personnel responsible for a higher level of support.
Page 522: Nt6X71 In An Opm
8-182 OPM card replacement procedures NT6X71 in an OPM Application Use this procedure to replace the following card in an OPM. Suffixes Name NT6X71 Data line card DMS-100/SL-100 Common procedures The common replacing a line card procedure is referenced in this procedure. Action The following ﬂowchart is a summary of the procedure.
Page 523 OPM card replacement procedures 8-183 NT6X71 in an OPM (continued) Summary of card replacement procedures for an NT6X71 card in an OPM This flowchart summarizes the At LNS;LTP level, procedure. post the line card Use the instructions that follow to perform the procedure. Is the line status ManB? Busy the line card...
Page 524 8-184 OPM card replacement procedures NT6X71 in an OPM (continued) Replacing an NT6X71 card in an OPM 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 525 OPM card replacement procedures 8-185 NT6X71 in an OPM (end) At the MAP 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 526: Nt6X73 In An Opm Hie
8-186 OPM card replacement procedures NT6X73 in an OPM HIE Application Use this procedure to replace the following card in a host interface equipment (HIE) shelf. Suffixes Name NT6X73 Link Control Card (LCC) Common procedures The common replacing a card procedure is referenced in this procedure. Action The following ﬂowchart is a summary of the procedure.
Page 527 OPM card replacement procedures 8-187 NT6X73 in an OPM HIE (continued) Summary of card replacement procedures for an NT6X73 card in an HIE At the PM level of This flowchart summarizes the the MAP terminal, procedure. post the LCM Use the instructions that follow this flowchart to perform the procedure.
Page 528 8-188 OPM card replacement procedures NT6X73 in an OPM HIE (continued) At the MAP terminal Access the peripheral module (PM) level and post the line concentrating module (LCM) by typing >MAPCI;MTC;PM;POST LCM site frame lcm and pressing the Enter key. where site is the site name of the OPM (alphanumeric)
Page 529 OPM card replacement procedures 8-189 NT6X73 in an OPM HIE (end) If you were directed to this procedure from another maintenance procedure, return now to the alarm clearing procedure that directed you here; otherwise, continue with step 9. At the MAP terminal Return the busied unit to service by typing >RTS UNIT lcm_unit and pressing the Enter key.
Page 530: Nt6X74 In An Opm Rmm
8-190 OPM card replacement procedures NT6X74 in an OPM RMM Application Use this procedure to replace the following card in an RMM. Suffixes Name NT6X74 RMM Control Card Common procedures The common replacing a card procedure is referenced in this procedure. Action The following ﬂowchart is a summary of the procedure.
Page 531 OPM card replacement procedures 8-191 NT6X74 in an OPM RMM (continued) Summary of card replacement procedures for an NT6X74 card in an RMM This flowchart summarizes the At the TRKS;TTP procedure. level, post the RMM Use the instructions in the procedure that follows this flowchart to perform the Is the RMM...
Page 532 8-192 OPM card replacement procedures NT6X74 in an OPM RMM (continued) At the MAP display Access the TTP level of the MAP and post the RMM that contains the card to be replaced by typing >MAPCI;MTC;TRKS;TTP;POST P RMM rmm_no and pressing the Enter key. where rmm_no is the number of the RMM shelf in which the card is to be replaced...
Page 533 OPM card replacement procedures 8-193 NT6X74 in an OPM RMM (continued) SysB ManB Offl CBsy ISTb InSv InSv Busy the RMM by typing >BSY and pressing the Enter key. At the RMM Replace the NT6X74 card using the common replacing a card procedure in this document.
Page 534 8-194 OPM card replacement procedures NT6X74 in an OPM RMM (continued) Download the tape by typing >MOUNT tape_no and pressing the Enter key. where tape_no is the number of the tape drive containing the PM load ﬁles List the contents of the tape in your user directory by typing >LIST T tape_no and pressing the Enter key.
Page 535 OPM card replacement procedures 8-195 NT6X74 in an OPM RMM (continued) Access the disk utility level of the MAP by typing >DISKUT and pressing the Enter key. List all disk volumes to 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 536 8-196 OPM card replacement procedures NT6X74 in an OPM RMM (end) Return to service the circuits busied in step 5 by typing >RTS ALL 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: •...
Page 537 OPM card replacement procedures 8-197 NT6X75 in an OPM HIE Application Use this procedure to replace the following card in an HIE shelf. Suffixes Name NT6X75 OPM ESA Tone and Clock Card Common procedures The common replacing a card procedure is referenced in this procedure. Action The following ﬂowchart is a summary of the procedure.
Page 538: Nt6X75 In An Opm Hie
8-198 OPM card replacement procedures NT6X75 in an OPM HIE (continued) Summary of card replacement procedures for an NT6X75 card 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...
Page 539 OPM card replacement procedures 8-199 NT6X75 in an OPM HIE (continued) At the MAP display Post the LCM associated with the faulty NT6X75 card by typing >MAPCI;MTC;PM;POST LCM site frame lcm and pressing the Enter key. where site is the name of the location of the OPM frame is the number of the OPM cabinet is the number of the LCM in the OPM cabinet...
Page 540 8-200 OPM card replacement procedures NT6X75 in an OPM HIE (continued) is the number of the LCM in the OPM cabinet Busy unit 0 by typing >BSY UNIT 0 and pressing the Enter key. At the OPM cabinet Replace the NT6X75 card using the common replacing a card procedure in this document.
Page 541 OPM card replacement procedures 8-201 NT6X75 in an OPM HIE (continued) Determine the type of device on which the PM load ﬁles are located. If load ﬁles are located on tape step 16 IOC disk step 22 SLM disk step 27 Locate the tape that contains the PM load ﬁles.
Page 542 8-202 OPM card replacement procedures NT6X75 in an OPM HIE (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, obtained in step 22.
Page 543 OPM card replacement procedures 8-203 NT6X75 in an OPM HIE (end) Return the ESA processor to service by typing >RTS and pressing the Enter key. If RTS passed step 34 failed step 36 Send any faulty cards for repair according to local procedure. Record the following items in ofﬁce records: •...
Page 544: Nt6X99 In An Opm
8-204 OPM card replacement procedures NT6X99 in an OPM Application Use this procedure to replace the following card in an OPM. Suffixes Name NT6X99 Common procedures The common replacing a line card procedure is referenced in this procedure. Action The following ﬂowchart is a summary of the procedure. To replace the card, use the instructions in the procedure that follows the ﬂowchart.
Page 545 OPM card replacement procedures 8-205 NT6X99 in an OPM (continued) Summary of card replacement procedure for an NT6X99 card in an OPM This flowchart summarizes the procedure. At LNS;LTP level, Use the instructions in the post the line card procedure that follows this flowchart to perform the procedure.
Page 546 8-206 OPM card replacement procedures NT6X99 in an OPM (continued) Replacing an NT6X99 card in an OPM 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 that is to be removed.
Page 547 OPM card replacement procedures 8-207 NT6X99 in an OPM (end) At the MAP display 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 548: Nt8X02 In An Opm Bcu
8-208 OPM card replacement procedures NT8X02 in an OPM BCU Application Use this procedure to replace the following card in an OPM BCU battery control unit (BCU). Suffixes Name NT8X02 AA, AB Battery Charger Controller card (BCC) Common procedures The common replacing a card procedure is referenced in this procedure. Action The following ﬂowchart is a summary of the procedure.
Page 549 OPM card replacement procedures 8-209 NT8X02 in an OPM BCU (continued) Summary of card replacement procedure for an NT8X02 card in an BCU This flowchart summarizes the Post the procedure. OPM PES Use the instructions in the procedure that follows this flowchart to perform the Busy the procedure.
Page 550 8-210 OPM card replacement procedures NT8X02 in an OPM BCU (continued) Replacing an NT8X02 card in an 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 551 OPM card replacement procedures 8-211 NT8X02 in an OPM BCU (continued) At the OPM cabinet DANGER Possible loss of service during BCC (NT8X02) replacement Do not turn off more than one BCC NT8X02 at a time or service is lost if AC power is interrupted. Turn off BCC0 when working on battery strings 0, 1, 2, or 3.
Page 552 8-212 OPM card replacement procedures NT8X02 in an OPM BCU (end) Go to step 15. Obtain further assistance in replacing this card by contacting the personnel responsible for higher level of support. You have successfully completed this procedure. 297-8361-550 Standard 04.01 September 2000...
Page 553 OPM card replacement procedures 8-213 NTMX45 in an OPM HIE 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 554: Ntmx45 In An Opm Hie
8-214 OPM card replacement procedures NTMX45 in an OPM HIE (continued) Summary of replacing an NTMX45 HIE 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.
Page 555 OPM card replacement procedures 8-215 NTMX45 in an OPM HIE (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 •...
Page 556 8-216 OPM card replacement procedures NTMX45 in an OPM HIE (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...
Page 557 OPM card replacement procedures 8-217 NTMX45 in an OPM HIE (continued) 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 558 8-218 OPM card replacement procedures NTMX45 in an OPM HIE (continued) Seat and lock the card. Use your ﬁngers or thumbs to push on the upper and lower edges of the faceplate. Close the locking levers. Use the following table to determine the next step in this procedure. If you entered this procedure from an alarm clearing procedure...
Page 559 OPM card replacement procedures 8-219 NTMX45 in an OPM HIE (continued) Load the ESA processor by typing >LOADPM and pressing the Enter key. If the load message “loadfile not found in step 10 directory" is received load passes step 28 load fails step 35 Determine the type of device on which the PM load ﬁles are located.
Page 560 8-220 OPM card replacement procedures NTMX45 in an OPM HIE (continued) tape_no is the number of the tape drive containing the PM load ﬁles Go to step 27. 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 561 OPM card replacement procedures 8-221 NTMX45 in an OPM HIE (continued) Reload the ESA processor by typing >LOADPM and pressing the Enter key. If loadpm passes step 28 fails step 35 Query the PM counters for the ﬁrmware load on the NTMX45 by typing >QUERYPM CNTRS and pressing the Enter key.
Page 562 8-222 OPM card replacement procedures NTMX45 in an OPM HIE (end) and pressing the Enter key. If the LOADFW UPGRADE passes step 31 fails step 35 Return the ESA to service by typing >RTS and pressing the Enter key. If the RTS passes step 32 fails...
Page 563: Replacing A Card
OPM card replacement procedures 8-223 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 procedure that follows the ﬂowchart. DMS-100 Family OPM Maintenance Manual XPM14 and up...
Page 564 8-224 OPM card replacement procedures Replacing a card (continued) Summary of common procedures for Replacing a card Locate the This flowchart summarizes defective card the procedure. Use the instructions that follows this flowchart to Remove the perform the procedure. defective card Insert the replacement card...
Page 565 OPM card replacement procedures 8-225 Replacing a card (continued) Replacing a card At the frame supervisory panel: 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 566 8-226 OPM card replacement procedures Replacing a card (continued) Open the locking levers on the card to be replaced and gently pull the card toward you until it clears the shelf. Examine the switch settings (if any) of the card just removed. Ensure that the switch settings on the replacement card match those of the card being replaced.
Page 567 OPM card replacement procedures 8-227 Replacing a card (end) Seat and lock the card. 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. Close the locking levers.
Page 568: Replacing A Line Card
8-228 OPM card replacement procedures 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 procedure that follows the ﬂowchart.
Page 569 OPM card replacement procedures 8-229 Replacing a line card (continued) Summary of procedure for Replacing a line card Locate the This flowchart summarizes defective line the procedure. card Use the instructions in the step-action table that Remove the follows this flowchart to defective line perform the procedure.
Page 570 8-230 OPM card replacement procedures Replacing a line card (continued) Replacing a line card At your current location: DANGER Improper handling could possibly damage cards Store and transport circuit cards in electrostatic discharge (ESD) protective containers to prevent electrical and mechanical damage.
Page 571 OPM card replacement procedures 8-231 Replacing a line card (continued) Face the drawer shelf and grasp the handle at the bottom of the drawer with the right hand. Push up on the drawer latch with your thumb and pull the drawer out until fully withdrawn.
Page 572 8-232 OPM card replacement procedures Replacing a line card (continued) Extractor Step 4 continued... Hold the front cover of the line drawer to steady it with your left hand. Pull the extractor away from the drawer to unplug the card from its socket on the drawer backplane.
Page 573 OPM card replacement procedures 8-233 Replacing a line card (end) Push the card toward the backplane until it plugs fully into the backplane socket. You have completed this procedure. Return to the main procedure that sent you to this procedure and continue as directed. Note: Card shrouds are required for inserting or removing cards in line drawers.
Page 575: Locating And Clearing Opm Problems
This problem locate and clear section is for maintenance engineering and ﬁeld maintenance personnel. Maintenance engineering and ﬁeld maintenance personnel already have a basic knowledge of the DMS-100 Series of switches and the Outside Plant Module (OPM). This section is not for operating company personnel that require exact procedures to perform maintenance tasks.
Page 577: 10 Trouble Isolation And Correction
10-1 10 Trouble isolation and correction Description of troubleshooting procedures Basic troubleshooting procedures contain 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 generates on a regular basis.
Page 578: Locating And Clearing Faults
10-2 Trouble isolation and correction Alarms Audible and visual alarms require action to correct the problem. Correct performance of routine system maintenance and use of OMs and logs minimizes the occurrence of alarms. The level of alarm indicates how severe the alarm is and the associated emergency to correct the action.
Page 579: Fault Isolation Tests
Trouble isolation and correction 10-3 Fault isolation tests When the system detects a fault condition in the OPM, maintenance action is required. Fault isolation tests determine which component causes the fault. Fault isolation tests determine if the fault condition requires immediate correction or if the fault condition must be reported to the correct maintenance support organization.
Page 580: Faulty Ds-1 Link
10-4 Trouble isolation and correction Operating company personnel can hear the following sounds: • dial tone—Operating company personnel received a dial tone from a 6X17 card. Dial the operator and ask the number you are on. This number is your defective line. •...
Page 581: Diagnostic Tests
Trouble isolation and correction 10-5 Post the OPM. Use the QUERYPM command to display the PM load that resides in the OPM. Determine the correct OPM PM load. Correct Table LCMINV if the table has the wrong PM load for the OPM. If the table has a PM load that is not correct for the OPM, obtain the correct PM load.
Page 582: Xpm Bit Error Ratio Test
10-6 Trouble isolation and correction XPM bit error ratio test The host XPM performs the XPM bit error ratio test (XBERT) for the OPM subsystem. The XBERT is a diagnostic test that does the following: • detects and measures pulse code modulation (PCM) bit errors that occur in XPM and OPM cards •...
Page 583: Entering Xbert
Trouble isolation and correction 10-7 The isolate command automatically runs tests to isolate a fault to a speciﬁed set of cards. The number of cards in the card list of the cards varies from one to three. The separate test results determine the number of cards in the list. One manual request can test the P-side ports of the XPM or the OPM bus interface cards (BIC) in order.
Page 584: Lines Maintenance
10-8 Trouble isolation and correction When the user enters the command XBERT N <<node#>>, the user enters XBERT through the PMs node-assignment number. Table NNASST contains node-assignment numbers. The user can locate node-assignment numbers with the QUERYPM command to post the PM. Test at the PM MAP display level.
Page 585 Trouble isolation and correction 10-9 Figure 10-1 Line maintenance commands 0 QUIT_ 3 LTP 4 ALT 5LNSTRBL LNSTRBL 0 Quit 0 Quit 0 Quit 2 Post_ 2 Post_ 2 Disp_ 3 ALTInfo 3StopDisp 4ListAlm_ 5 Bsy 6 RTS 6 CreatSup 7 Diag 7 SDiag 8 Diag...
Page 586: Station Tests
10-10 Trouble isolation and correction The ALT in a DMS-100 switch ofﬁce occurs under the LNS subsystem. The previous ﬁgure shows the commands available at the ALT level of the LNS level, which deﬁne the ALT. A description of these commands follows: •...
Page 587: Manual Line Testing
Trouble isolation and correction 10-11 Station tests help determine if a station operates correctly when connected to a loop and line circuit group. Manual line testing The switch operator performs manual line tests on line circuits, loops, and stations. The switch operator tests line circuits and loops on a separate basis. The results of the test appear at a VDU to the switch operator immediately after the test.
Page 589: 11 Troubleshooting Chart
11-1 11 Troubleshooting chart The following table describes the basic troubleshooting procedures for Outside Plant Module (OPM) alarms. DMS-100 Family OPM Maintenance Manual XPM14 and up...
Page 590 11-2 Troubleshooting chart Table 11-1 OPM alarm clearing (Sheet 1 of 3) Alarm condition Possible cause Action Critical Defective line concentrating module Identify and post the system busy (LCM) processor cards in both LCM (SysB) LCM. units Busy both units of the defective LCM. Defective power converter cards in Return to service (RTS) the defective both LCM units...
Page 591 Troubleshooting chart 11-3 Table 11-1 OPM alarm clearing (Sheet 2 of 3) Alarm condition Possible cause Action Major Defective LCM processor Identify and post the in-service trouble (ISTb) LCM. Defective digroup control card Identify fault indicators with Defective power converter QUERYPM FLT command.
Page 592 11-4 Troubleshooting chart Table 11-1 OPM alarm clearing (Sheet 3 of 3) Alarm condition Possible cause Action Minor Defective RG frequency generator Identify and post the ISTb LCM. circuit Identify fault indicators with Activity mismatch QUERYPM FLT command. Data error If the LCM is CBsy, identify C-side links to the host PM.
Page 593: Advanced Troubleshooting Procedures
12-1 12 Advanced troubleshooting procedures A defective unit is normally busied and tested. The system displays a list of cards at the MAP terminal after the tests complete. The card at the top of the list often causes the problem. After you replace the problem card, test the defective unit again.
Page 594 12-2 Advanced troubleshooting procedures power, the circuit breaker stays in the ON position. If a problem occurs with the power, the circuit returns to the OFF position. a. Repeat steps Item 2, "At the remote site, set the switch on the power converter to the ON position."...
Page 595: Powering-Down The Opm
Advanced troubleshooting procedures 12-3 Powering-down the OPM CAUTION Loss of service Use this procedure in severe conditions like anticipated natural disasters. This procedure causes a complete loss of service to the subscriber. Perform the following steps at the MAP terminal to power-down the OPM: 1.
Page 596: Troubleshooting A Loading Failure
12-4 Advanced troubleshooting procedures Troubleshooting a loading failure DANGER Possible service interruption Use caution when you use PMDEBUG on a peripheral that functions. Use only the commands shown. The steps for troubleshooting a failure to load the peripheral program ﬁles for the OPM are as follows: 1.
Page 597 Advanced troubleshooting procedures 12-5 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 598: Troubleshooting Rts Failure
12-6 Advanced troubleshooting procedures problem. If all actions are correct, proceed to step o.Item o, "At the remote, loop back the link to test toward the host." on page 12-6 o. At the remote, loop back the link to test toward the host. p.
Page 599: Troubleshooting Dial Tone Problems
Advanced troubleshooting procedures 12-7 3. Unseat the following cards: • 6X51, 6X52, 6X53 cards from unit 1 • 6X50 (slot 20 of HIE shelf) • 6X73 (slot 18 of HIE shelf) • 2X70 (slot 25 of the HIE shelf) Attempt to RTS FORCE unit 0. 4.
Page 600: Troubleshooting Ringing Generator Problems
12-8 Advanced troubleshooting procedures This voltage is the talk-battery supply for these drawers and comes from the power distribution center (PDC) for this frame. Check the fuse in the PDC if the voltage is not available. 4. If LSGs 10 through 19 do not have dial tone, verify with a voltmeter that TB1 lug 8 reads -48V.
Page 601 Advanced troubleshooting procedures 12-9 When the cycling starts for a speciﬁed drawer, remove the fuses again. Proceed to the next drawer. This action isolates all the drawers that cause the problem. 6. When you isolate the drawer, insert the fuses back for the drawer or drawers.
Page 603: Opm Routine Maintenance Procedures
13-1 13 OPM routine maintenance procedures This chapter contains routine procedures for the Outside Plant Module (OPM). These procedures cover preventative maintenance tasks. Maintenance engineering and ﬁeld personnel should perform these procedures on a regularly scheduled basis. DMS-100 Family OPM Maintenance Manual XPM14 and up...
Page 604: Battery Capacity Tests Opm
13-2 OPM routine maintenance procedures Battery capacity tests Application Use this procedure to check the capacity of Yuasa (A037761) or Eagle-Picher (A0386201) batteries. Use this procedure to check the capacity of Yuasa or Eagle-Picher battteries in OPMs that have a line test unit (LTU) or multiline test unit (MTU).
Page 605 OPM routine maintenance procedures 13-3 Battery capacity tests (continued) Summary of battery capacity tests OPM This flowchart summarizes the procedure. Use the instructions that follow this flowchart to perform the procedure. Disable battery audit Open circuit strings Measure voltage Voltage is less Disconnect 0, 1, 2, and 3 of each string...
Page 606 13-4 OPM routine maintenance procedures Battery capacity tests (continued) Battery capacity tests in OPM At your present location Make sure that extended power failures did not occur at the OPM site in the last 72 hours. Verify that the OPM is not in post ac failure recovery mode. At the MAP terminal To access the OPMPES MAP display level, type >MAPCI;MTC;PM;PES...
Page 607 OPM routine maintenance procedures 13-5 Battery capacity tests (continued) Example of a MAP display Trks 1PES SysB ManB OffL CBSY ISTB InSV 0 Quit 2 Post_ AMBER GREEN OFFL 6 Tst_ 2 Cond: REM2 7 Bsy_ Audit Week 8 Rts_ Common Rectifiers –...
Page 608 13-6 OPM routine maintenance procedures Battery capacity tests (continued) Example of a MAP display: Trks 1PES OPMPES SysB ManB OffL CBSY ISTB InSV 0 Quit 2 Post_ AMBER GREEN OFFL OPMPES 6 Tst_ OPMPES 2 Cond: REM2 7 Bsy_ Audit Week 8 Rts_ Common...
Page 609 OPM routine maintenance procedures 13-7 Battery capacity tests (continued) At the OPM cabinet DANGER Possible system damage You can add or remove battery strings from an active OPM. If you perform this action make sure the battery strings are in the open-circuit state from the MAP terminal.
Page 610 13-8 OPM routine maintenance procedures Battery capacity tests (continued) If measured voltage is greater than 49 V step 12 Disconnect the battery string immediately. If you do not disconnect the battery string immediately the batteries can crack before you install new battery strings.
Page 611 OPM routine maintenance procedures 13-9 Battery capacity tests (end) is the string pair 3 and 7 To activate automatic battery rotation and testing, type >AUDIT ENABLE and press the Enter key. This inspection procedure is complete. Note: If an ac failure lasts for greater than 5 min when you perform this procedure, repeat the complete procedure.
Page 612 13-10 OPM routine maintenance procedures Battery, physical inspection Application Use this procedure to inspect the batteries in an OPM. Interval Perform this procedure every 6 months. Common procedures Does not apply Action This procedure contains a summary ﬂowchart as an overview of the procedure. Follow the steps to perform this procedure.
Page 613: Battery, Physical Inspection Opm
OPM routine maintenance procedures 13-11 Battery, physical inspection (continued) Summary of battery, physical inspection of OPM This flowchart summarizes the procedure. Use the instructions that follow this flowchart to perform the procedure. Inspect battery pack terminal, connectors and shelves. Are there signs of End of procedure.
Page 614 13-12 OPM routine maintenance procedures Battery, physical inspection (end) Battery, physical inspection of OPM At the OPM cabinet DANGER Hazardous chemicals Battery chemicals can be hazardous and can explode. Proceed with caution. Inspect battery pack terminal, connectors and shelves for moisture or corrosion.
Page 615: Battery Replacement Opm
OPM routine maintenance procedures 13-13 Battery replacement Application Use this procedure to replace batteries in an OPM. Interval Follow this procedure when you perform one of the following operations: • install the OPM cabinet • replace battery strings for maintenance •...
Page 616 13-14 OPM routine maintenance procedures Battery replacement (continued) Summary of battery replacement in an OPM Post OPMPES This flowchart summarizes the Remove retaining for the affected procedure. bar and replace batteries Use the instructions in the procedure that follows this flowchart to perform the Test polarity of Disable the...
Page 617 OPM routine maintenance procedures 13-15 Battery replacement (continued) Battery replacement in an OPM At the MAP terminal To access the PES 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 or OFFL...
Page 618 13-16 OPM routine maintenance procedures Battery replacement (continued) and press the Enter key. where is the string pair 0-3, as follows: pair 0 is strings 0 and 4 pair 1 is strings 1 and 5 pair 2 is strings 2 and 6 pair 3 is strings 3 and 7 Example of MAP display:...
Page 619 OPM routine maintenance procedures 13-17 Battery replacement (continued) DANGER Hazardous chemicals Battery chemicals can be hazardous and explosive. Use caution. Install and interconnect the battery units. There are four matched battery units for each string in the shelf location that corresponds to the battery set number.
Page 620 13-18 OPM routine maintenance procedures Battery replacement (continued) Replace the retaining bar. Use an ohmmeter to test the polarity of the string. Test the polarity at the end of the replaced battery string Yuasa battery string connections –48 V Black –...
Page 621 OPM routine maintenance procedures 13-19 Battery replacement (end) Example of a MAP display: Trks 1PES OPMPES SysB ManB OffL CBSY ISTB InSV 0 Quit 2 Post_ AMBER GREEN OFFL OPMPES 6 Tst_ OPMPES 2 Cond: REM2 7 Bsy_ Audit Week 8 Rts_ Common Rectifiers...
Page 622 13-20 OPM routine maintenance procedures Testing dampers Application Use this procedure to test the temperature control dampers in an OPM. 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 623: Testing Dampers Opm
OPM routine maintenance procedures 13-21 Testing dampers (continued) Summary of Testing dampers in an OPM This flowchart summarizes the procedure. Use the instructions that follow this flowchart to perform the procedure. Heat the damper control sensor Does the Contact the next damper close? level of maintenance...
Page 624 13-22 OPM routine maintenance procedures Testing dampers (continued) Testing dampers in an OPM At the OPM cabinet To verify damper closure, cool the damper sensor with Freon to +5°C ± 2.8°Χ (41°F ± 5°F). To verify damper opening +15°C ± 2.8°C (59°F ± 5°F), blow warm air on the sensor.
Page 625 OPM routine maintenance procedures 13-23 Testing dampers (end) Contact the next level of maintenance. The procedure is complete. DMS-100 Family OPM Maintenance Manual XPM14 and up...
Page 626 13-24 OPM routine maintenance procedures Door alarms testing Application Use this procedure to test the door alarms in an OPM. Interval Perform this procedure as local policy directs. 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 627: Door Alarms Testing Opm
OPM routine maintenance procedures 13-25 Door alarms testing (continued) Summary of Testing door alarms in an OPM This flowchart summarizes the Open door procedure. Use the instructions that follow this flowchart to perform this procedure. Is door alarm generated? Contact your Press door alarm maintenance switch...
Page 628 13-26 OPM routine maintenance procedures Door alarms testing (continued) Testing door alarms in an OPM At the OPM cabinet Open the front and side doors. Set up a telephone link with personnel in the host ofﬁce at a MAP terminal. Use the telephone link to monitor the alarms this procedure generates.
Page 629 OPM routine maintenance procedures 13-27 Door alarms testing (end) Doors High temperature switch Bay locking Fuse alarm High knobs panels temperature alarm Rectifiers and PCU Empty or LCA-0 Low temperature alarm sensors (each ECU) BAY 0 BAY 1 Low temperature Damper control sensors Low temperature Bay locking...
Page 630 13-28 OPM routine maintenance procedures Dust removal Application Use this procedure to remove dust in an OPM. 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. Follow the appropriate steps to perform this procedure.
Page 631: Dust Removal Opm
OPM routine maintenance procedures 13-29 Dust removal (continued) Summary of dust removal in an OPM This flowchart summarizes the procedure. Use the instructions that follow this flowchart to perform the procedure. Use brushless motor vacuum to clean OPM End of procedure DMS-100 Family OPM Maintenance Manual XPM14 and up...
Page 632 13-30 OPM routine maintenance procedures Dust removal (end) Dust removal in an OPM At the OPM cabinet WARNING Possible service degradation due to electrical interference Series-wound motors cause electromagnetic interference. Vacuum OPM frames to prevent the increase of electrostatic discharges that dust causes.
Page 633: Discharge Test Failure Opm
OPM routine maintenance procedures 13-31 Discharge test failure Application Use this procedure after a discharge test fails to determine if you must replace batteries. Interval Perform this procedure each time a discharge test fails. Common procedures There are no common procedures. Action This procedure contains a summary ﬂowchart and a list of steps.
Page 634 13-32 OPM routine maintenance procedures Discharge test failure (continued) Summary of discharge test failure OPM This flowchart summarizes the procedure. Use the instructions that follow this flowchart to perform the procedure. Disable battery audit. Use log PES117 to determine which battery string fails test.
Page 635 OPM routine maintenance procedures 13-33 Discharge test failure (end) Discharge test failure At the MAP terminal To access the PES 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. where alarm_state is RED or AMBER...
Page 636: Open-Circuit Test Failure Opm
13-34 OPM routine maintenance procedures Open-circuit test failure Application Use this procedure after an open-circuit test failure to determine if batteries need replacement. Interval Perform this procedure after every open-circuit test failure. Common procedures There are no common procedures. Action This procedure contains a summary ﬂowchart and a list of steps.
Page 637 OPM routine maintenance procedures 13-35 Open-circuit test failure (continued) Summary of open-circuit test failure OPM This flowchart summarizes the Disable battery procedure. audit Use the instructions that follow this flowchart to perform the procedure. Use PES117 log to identify failed battery string Open circuit to failed battery string...
Page 638 13-36 OPM routine maintenance procedures Open-circuit test failure (continued) Open-circuit test failure At the MAP terminal To access the PES 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 or AMBER...
Page 639 OPM routine maintenance procedures 13-37 Open-circuit test failure (end) Compare measured voltage to OPM_VOLT_TST_CHG. If voltage compared to OPM_VOLT_TST_CHG is less negative step 8 is equal to or more negative step 9 Note: The OPMs with MTU default OPM_VOLT_TST_CHG = -509 or -50.9 Vdc for Eagle Picher and Yuasa batteries.
Page 640: Failure Of Post Charge Test Opm
13-38 OPM routine maintenance procedures Failure of post charge test Application Use this procedure after the failure of a post charge test to determine if the replacement of batteries are necessary. Interval Perform this procedure after each post charge test failure. Common procedures There are no common procedures.
Page 641 OPM routine maintenance procedures 13-39 Failure of post charge test (continued) Summary of failure of post charge test in an OPM This flowchart summarizes the procedure. Use the instructions that follows this flowchart to perform the procedure. Disable battery audit Use PES117 log to identify the battery string that fails.
Page 642 13-40 OPM routine maintenance procedures Failure of post charge test (continued) Failure of post charge test in an OPM At the MAP terminal To access the PES 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 643 OPM routine maintenance procedures 13-41 Failure of post charge test (end) To measure the voltage of the failed battery string pair, type >MEASURE PAIR n and press the Enter key. where is the number of the string pair (0-3) If voltage compared to OPM_VOLT_TST_CHG is less negative step 8...
Page 644 13-42 OPM routine maintenance procedures Fan alarms testing Application Use this procedure to test the fan alarms in an OPM. 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. Follow the appropriate steps to perform this procedure.
Page 645: Fan Alarms Testing Opm
OPM routine maintenance procedures 13-43 Fan alarms testing (continued) Summary of fan alarms testing in an OPM This flowchart summarizes the procedure. Use the instructions that follow this flowchart to perform the procedure. Have both Remove power End of ECU units from one ECU procedure been tested?
Page 646 13-44 OPM routine maintenance procedures Fan alarms testing (continued) Fan alarms testing in an OPM At your present location Remove power from one of the environmental control units (ECU). Note: Set up a phone link with the host ofﬁce at a MAP terminal to monitor the alarms this procedure generates.
Page 647 OPM routine maintenance procedures 13-45 Fan alarms testing (end) If the alarm does not clear step 12 Have both ECU units been checked? If both ECUs are not checked step 1 for other ECU checked step 13 Contact your maintenance support group. The procedure is complete.
Page 648 13-46 OPM routine maintenance procedures Filters inspection for cooling unit Application Use this procedure to inspect cooling unit ﬁlters in frame cooling units. Interval Perform this procedure every two weeks. 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 649: Filters Inspection For Cooling Unit Opm
OPM routine maintenance procedures 13-47 Filters inspection for cooling unit (continued) Summary of ﬁlters inspection for cooling unit This flowchart summarizes the procedure. Use the instructions that follow this flowchart to perform the procedure. Set fan alarm override to ON Remove air Clean or Clean grille...
Page 650 13-48 OPM routine maintenance procedures Filters inspection for cooling unit (continued) Filters inspection for cooling unit At the FSP DANGER Rotating fan blades Do not reach in more than 15.24 cm (6 in) beyond the upper lip of the air-intake grille. If you reach in more than 15.24 cm, your ﬁngers can contact the rotating blades of the cooling unit fans.
Page 651 OPM routine maintenance procedures 13-49 Filters inspection for cooling unit (end) If light is not visible through the filter step 11 Install the ﬁlter in the grille again. Install the ﬁlter and grille assembly in the frame again. Go to step 21. Check the ﬁlter part number.
Page 652: Secondary (Diffuser) Filter Replacement In Cooling Unit Opm
13-50 OPM routine maintenance procedures Secondary (diffuser) ﬁlter replacement in cooling unit Application Use this procedure to replace cooling unit ﬁlters in frame cooling units. Interval Perform this procedure every 3 months. Common procedures There are no common procedures. Action This procedure contains a summary ﬂowchart and a list of steps.
Page 653 OPM routine maintenance procedures 13-51 Secondary (diffuser) filter replacement in cooling unit (continued) Summary of ﬁlter replacement in cooling unit This flowchart summarizes the procedure. Use the instructions that follow this flowchart to perform the procedure. Set ECU fan switch to OFF Remove the secondary air filter...
Page 654 13-52 OPM routine maintenance procedures Secondary (diffuser) filter replacement in cooling unit (continued) Secondary (diffuser) ﬁlter replacement in cooling unit At the ECU WARNING Damage to airﬂow sensor blades Turn the ECU fans OFF before you remove or insert the secondary (diffuser) ﬁlters.
Page 655 OPM routine maintenance procedures 13-53 Secondary (diffuser) filter replacement in cooling unit (end) Exhaust ports Exhaust ports Fans Insulation Batteries Electronic equipment ECU fans Heater pads and damper Diffuser (secondary) filter Primary filter Insect screen Air intake Clean or replace the ﬁlter. Insert the cleaned ﬁlter or replacement ﬁlter in the ECU.
Page 656 13-54 OPM routine maintenance procedures Filter replacement Application Use this procedure to replace an air ﬁlter in an Outside Plant Module (OPM). Interval Follow local policy when you perform this procedure. 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 657: Filter Replacement Opm
OPM routine maintenance procedures 13-55 Filter replacement (continued) Summary of ﬁlter replacement OPM This flowchart summarizes the procedure. Use the instructions that follow this flowchart to perform the procedure. Remove filter assembly Remove dirty filter media Cut new filter media insert Install filter assembly again...
Page 658 13-56 OPM routine maintenance procedures Filter replacement (end) Filter replacement OPM At the OPM cabinet Remove the ﬁlter insulation strip and sleeve ﬁlter assembly. Pull the dirty sleeve ﬁlter media from the sleeve ﬁlter support frame and discard. Slip the sleeve ﬁlter support frame into the sleeve ﬁlter media roll, A0336991, and cut the material as shown here.
Page 659: High Temperature Alarms Testing Opm
OPM routine maintenance procedures 13-57 High temperature alarms testing Application Use this procedure to test the high temperature alarms in an OPM. Interval Local policy directs when to perform this procedure. 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 660 13-58 OPM routine maintenance procedures High temperature alarms testing (continued) Summary of Testing high temperature alarms in an OPM This flowchart summarizes the procedure. Use the instructions that follow this flowchart to perform the procedure. Heat one high temperature alarm sensor System Contact the next level generates an...
Page 661 OPM routine maintenance procedures 13-59 High temperature alarms testing (continued) Testing high temperature alarms in an OPM At the OPM cabinet 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.
Page 662 13-60 OPM routine maintenance procedures High temperature alarms testing (end) the system does not generate an step 3 alarm Contact the next level of maintenance. Make sure to check the two high temperature alarm sensors. you did not check the sensors step 1 for other sensor you did check the sensors step 5...
Page 663: Heaters Testing Opm
OPM routine maintenance procedures 13-61 Heaters testing Application Use this procedure to test the heaters in an Outside Plant Module (OPM). Interval Local policy directs you to perform this procedure. Common procedures Does not apply Action This procedure contains a summary ﬂowchart and a list of steps. Use the ﬂowchart to review the procedure.
Page 664 13-62 OPM routine maintenance procedures Heaters testing (continued) Summary of Testing heaters in an OPM This flowchart is a summary of the procedure. Use the flowchart to review the procedure. Follow the steps to perform the procedure. Cool ECU heat switch Contact Heat blanket...
Page 665 OPM routine maintenance procedures 13-63 Heaters testing (continued) Testing heaters in an OPM At the OPM cabinet Cool the low temperature heater switch located in the environmental control unit (ECU) with Freon. Refer to the following ﬁgure for sensor location: High Doors temperature...
Page 666 13-64 OPM routine maintenance procedures Heaters testing (end) Contact your maintenance support group. This procedure is complete. 297-8361-550 Standard 04.01 September 2000...
Page 667: Low Temperature Alarms Testing Opm
OPM routine maintenance procedures 13-65 Low temperature alarms testing Application Use this procedure to test the low temperature alarms in an OPM. 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 reveiw the procedure.
Page 668 13-66 OPM routine maintenance procedures Low temperature alarms testing (continued) Summary of low temperature alarms testing in an OPM This flowchart summarizes the procedure. Use the instructions that follow this flowchart to perform the procedure. Heat one low temperature alarm sensor Contact the next level System generates an of maintenance...
Page 669 OPM routine maintenance procedures 13-67 Low temperature alarms testing (continued) Low temperature alarms testing in an OPM At the OPM cabinet To select and activate one high temperature alarm, blow coolant (like Freon) on the low temperature sensor. Locate the low temperature alarm sensors in the following drawing.
Page 670 13-68 OPM routine maintenance procedures Low temperature alarms testing (end) Verify that the system generates an alarm. The sensor turns on at -5°C ± 2.8°C (+23°F ± 5°F) and turns off at +5°C ± 2.8°Χ (+41°F ± 5°F). Note: Set up a telephone link with the host ofﬁce at a MAP display to monitor the alarms that this procedure generates.
Page 671 OPM routine maintenance procedures 13-69 Rectiﬁer voltage adjustment Application Use this procedure to adjust the rectiﬁer voltage in an OPM equipped with an LTU. Interval Perform this procedure every 3 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 672: Rectifier Voltage Adjustment Opm
13-70 OPM routine maintenance procedures Rectifier voltage adjustment (continued) Summary of rectiﬁer voltage adjustment in an OPM This flowchart summarizes the procedure. Use the instructions that follow this flowchart to perform the procedure. Adjust rectifier to correct voltage Measure the Perform MEASURE Voltage is rectifier voltage...
Page 673 OPM routine maintenance procedures 13-71 Rectifier voltage adjustment (end) Adjust the rectiﬁer voltage until the voltage is in speciﬁcation (-52.0 Vdc, ± 0.3 V) and the currents from the two rectiﬁers are balanced. If the rectiﬁer voltage is low before adjustment, wait 24 h before you proceed with battery capacity tests.
Page 674 13-72 OPM routine maintenance procedures Rectiﬁer voltage check Application Use this procedure to adjust the rectiﬁer voltage in an OPM equipped with an MTU. Interval Perform this procedure in three month intervals. Common procedures There are no common procedures. Action This procedure contains a ﬂowchart and a list of steps.
Page 675: Rectifier Voltage Check Opm
OPM routine maintenance procedures 13-73 Rectifier voltage check (end) Rectiﬁer voltage check in an OPM At the MAP terminal To access the OPMPES MAP 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.
Page 676 13-74 OPM routine maintenance procedures Rectiﬁer replacement in an NT8X01AA, AB, BA, BB Application Use this procedure to replace a rectiﬁer in an NT8X01AA, AB, BA, or BB OPM cabinet. 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.
Page 677: Rectifier Replacement In An Nt8X01Aa, Ab, Ba, Bb Opm
OPM routine maintenance procedures 13-75 Rectifier replacement in an NT8X01AA, AB, BA, BB (continued) Summary of rectiﬁer replacement for NT8X01AA, AB,BA, BB in an OPM This flowchart summarizes the procedure. Use the instructions that follow this flowchart to perform the procedure.
Page 678 13-76 OPM routine maintenance procedures Rectifier replacement in an NT8X01AA, AB, BA, BB (continued) Rectiﬁer replacement for NT8X01AA, AB, BA, BB in an OPM At the power control unit Switch the correct rectiﬁer breaker to OFF. Open the right equipment bay to access the front of the rectiﬁer. Note: The rectiﬁers located in the right equipment bay frame are installed with the rectiﬁer front facing the back cabinet wall.
Page 679 OPM routine maintenance procedures 13-77 Rectifier replacement in an NT8X01AA, AB, BA, BB (end) Check that the sequence settings (Seq. Set) DIP switch is set to the setting indicated in the following table. RECTIFIER Rectifier 0 open open closed Rectifier 1 open open open...
Page 680 13-78 OPM routine maintenance procedures Rectiﬁer replacement in an NT8X01AC, BC Application Use this procedure to replace a rectiﬁer in an NT8X01AC or BC OPM cabinet. 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.
Page 681: Rectifier Replacement In An Nt8X01Ac, Bc Opm
OPM routine maintenance procedures 13-79 Rectifier replacement in an NT8X01AC, BC (continued) Summary of rectiﬁer replacement in an NT8X01AC, BC OPM This flowchart summarizes the procedure. Use the instructions that follow this flowchart to perform the procedure. Switch PCU rectifier breaker to OFF Switch ac and dc Mount replacement...
Page 682 13-80 OPM routine maintenance procedures Rectifier replacement in an NT8X01AC, BC (end) Mount the replacement rectiﬁer and install the retaining screws. Switch the rectiﬁer breaker, on the PCU, to ON. Reconnect the load to the rectiﬁer. At the front face of the rectiﬁer, set the dc breaker to ON. At the front face of the rectiﬁer, set the ac breaker to ON.
Page 683: Site Test Opm
OPM routine maintenance procedures 13-81 Site test Application Use this procedure to perform site tests for battery strings that fail automatic tests in an OPM. Interval A test failure will indicate when to perform this procedure. Common procedures There are no common procedures. Action This procedure contains a summary ﬂowchart and a list of steps.
Page 684 13-82 OPM routine maintenance procedures Site test (continued) Summary of site test in an OPM This flowchart summarizes the procedure. Use the instructions that follow Disable battery this flowchart to perform the audit procedure. Measure voltage of each string Voltage is less Determine if voltage than 52V, ±...
Page 685 OPM routine maintenance procedures 13-83 Site test (continued) Site test in an OPM At the MAP display To access the OPMPES MAP 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 or AMBER...
Page 686 13-84 OPM routine maintenance procedures Site test (end) Measure the voltage of the entire battery string. If the battery string voltage is less than OPM_VOLT_TST_ step 9 OCC (-50.4 Vdc for Yuasa and Eagle Picher batteries) is less than OPM_VOLT_TST_ step 9 DIS (-49.5 Vdc for Yuasa and Eagle Picher batteries)
Page 687 OPM routine maintenance procedures 13-85 Testing wrist strap grounding cords Application Use this procedure to verify the correct resistance of the wrist strap grounding cord. This resistance must be low enough for static electricity to discharge from a person. This resistance must be high enough to prevent electrocution if the equipment develops a short-circuit while the person wears a wrist strap.
Page 688: Testing Wrist Strap Grounding Cords Opm
13-86 OPM routine maintenance procedures Testing wrist strap grounding cords (continued) Summary of Testing wrist strap grounding cords This flowchart summarizes the procedure. Use the instructions that follow this flowchart to perform the procedure. Obtain ohmmeter Detach cord from wrist strap Measure resistance between ends...
Page 689 OPM routine maintenance procedures 13-87 Testing wrist strap grounding cords (end) Testing wrist strap grounding cords At your current location Obtain an ohmmeter. DANGER Risk of electrocution The grounding cord is safe to use if the cord resistance measures higher than 800 kilohms. A lower resistance exposes the person that wears the wrist strap to the risk of electrocution if equipment short-circuits.
Page 690: Testing Power Converter Voltages Hie
13-88 OPM routine maintenance procedures Testing power converter voltages Application Use this procedure to test power converter voltages for power converters in the host interface shelf (HIE). 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.
Page 691 OPM routine maintenance procedures 13-89 Testing power converter voltages (continued) Summary of Testing power converter voltages This flowchart summarizes the procedure. Use the instructions that follow this flowchart to perform the Obtain dc procedure. voltmeter Measure voltages at face plate test points Are voltages End of within 2 % of face...
Page 692 13-90 OPM routine maintenance procedures Testing power converter voltages (end) Testing power converter voltages At your current location Obtain a dc voltmeter. Measure the voltage at the test points on the faceplates of all NT2X70 power converters in the HIE frame. The voltages must be within 2 percent of the nominal values printed on the NT2X70 faceplate.
Page 693 Returning a card for repair or replacement Application Use this procedure to return a circuit pack to Nortel for repair or replacement. Your location, Canada or the United States, determines the documents you must complete. Your location determines to which address you must return the card.
Page 694: Returning A Card For Repair Or Replacement Opm
13-92 OPM routine maintenance procedures Returning a card for repair or replacement (continued) Summary of Returning a card for repair or replacement This flowchart summarizes the procedure. Place card in Use the instructions that follow ESD protective this flowchart to perform the procedure.
Page 695 13-93 Returning a card for repair or replacement (continued) Pack the card or assembly in a Nortel card shipping carton and seal the card or assembly. If a Nortel shipping carton is not available, use another carton. Make sure you perform the following actions: •...
Page 696 13-94 OPM routine maintenance procedures Returning a card for repair or replacement (end) Address the carton to: Nortel Customer Operations, c/o Wesbell Transport, 1630 Trinity Road, Unit #3 Door #4, Mississauga, Ontario, L5T 1L6 This procedure is complete. 297-8361-550 Standard 04.01 September 2000...
Page 697 A- 1 Index NT3X09AA BCCDRVR Card 1-37 NT8X01AA/AB BCC Charge Bus Voltage alarm clearing 1-37 OPM Load Bus Voltage 1-37 critical, minor 7-99 normal battery rotation mode Ext FSP battery rotation and test cycle 1-41 OPM cabinet major 7-52 charge cycle 1-46 LCM talk battery alarm table OPMINV...
Page 698 A-2 Index NT2X48 test conditions 10-6 8-45 test types NT2X57 10-6 8-50 Discharge test failure NT2X59 8-54 follow-up test 13-31 NT2X70 8-61 Door alarms NT2X90 8-75 testing 13-24 NT3X09 8-83 Dust NT6X17 8-89 removing 13-28 NT6X18 8-93 NT6X19 8-97 NT6X20 8-101 NT6X21 8-105...
Page 699 Index A- 3 tones link failure 4-23 2-30 subscriber DS-1 links 4-24 2-30 translating data DS30A links 2-31 4-18 load ﬁle mismatch processor downloading 2-31 4-19 treatments looparound message audit failure 4-25 4-27 emergency stand alone (ESA) PESALRM indicators automatic maintenance table 1-31 Filters...
Page 700 A-4 Index line card hardware audit 1-36 speech path diagnostics Replacing 8-228 enhancements 2-33 line concentrating array (LCA) LCM REXTEST 2-62 block diagram testflow 2-62 illustration 2-14 LTC P-side link diagnostic 2-34 conﬁguration OPM audits 2-32 hardware DS-1 interface card 2-32 power converter card 2-32...
Page 701 Index A- 5 NT2X57 NT6X75 card replacement procedures card replacement procedures 8-50 8-197 NT2X59 NT6X99 card replacement procedures card replacement procedures 8-54 8-204 NT2X70 NT8X02 card replacement procedures card replacement procedures 8-61 8-208 NT2X90 card replacement procedures 8-75 NT3X09 Open circuit test failure card replacement procedures 8-83 follow-up testing...
Page 702 A-6 Index ringing generator problems battery backup time 12-8 RTS failure 12-6 calculating 1-28 OPM (RG) bay frame conﬁguration, OPM-256 critical illustration clearing bay frame conﬁguration, OPM-640 7-15 major illustration clearing bay frame location, OPM-256 7-46 OPM conﬁguration illustration cabinet bay frame location, OPM-640 OPM hardware illustration...
Page 703 Index A- 7 fault conditions link, port, and channel structure 1-30 alarm system illustration 1-31 2-21 PES description remote maintenance module (RMM) 1-30 ﬁber multiplexer cards Functional overview table hardware connection with host 2-22 hardware, miscellaneous control card 2-23 calibration device description digital remote test unit (DRTU) 1-10...
Page 704 A-8 Index wrist strap grounding cords Testing 13-85 297-8361-550 Standard 04.01 September 2000...
Page 706 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 Networks reserves the right to make changes in design or components as progress in engineering and manufacturing may warrant.

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