Page 1 297-8223-550 DMS 100 Family Remote Switching Center Remote Switching Center Multi-Access Maintenance Manual XPM11 and up Standard 04.02 November 2000...
Page 3 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 5: Table Of Contents
Contents Remote Switching Center Multi-Access Maintenance Manual About this document How to check the version and issue of this document vii References in this document vii What precautionary messages mean vii How commands, parameters, and responses are represented ix Input prompt (>) ix Commands and fixed parameters ix Variables ix Responses ix...
Page 6 iv Contents Automatic maintenance 2-59 Routine exercise test 2-59 Overload resources 2-66 Escalation to manual maintenance 2-66 RSC-M hardware Hardware components 3-1 CPM packaging 3-1 CPM cabinet 3-1 Single-cabinetized RSC-M configuration 3-2 Provisioning 3-3 RSC-M Signaling and Communications Signaling and communications protocols 4-1 CAS protocol 4-1 Signaling and communications types 4-2 RSC-M call setup protocol 4-3...
Page 7 Contents v Trouble condition indicators 8-1 Locating and clearing faults 8-3 Fault isolation program 8-4 Office recovery program 8-4 User interface for the RSC-M at the PM level of the MAP display 8-5 User interface for external alarms 8-12 User interface for carrier maintenance 8-12 Fault isolation tests 8-15 Handling a SysB RSC-M unit 8-15 Handling an ISTb RSC-M unit 8-16...
Page 9: About This Document
About this document How to check the version and issue of this document The version and issue of the document are indicated by numbers, for example, 01.01. The ﬁrst two digits indicate the version. The version number increases each time the document is updated to support a new software release. For example, the ﬁrst release of a document is 01.01.
Page 10 viii An attention box identiﬁes information that is necessary for the proper performance of a procedure or task or the correct interpretation of information or data. Danger, warning, and caution messages indicate possible risks. Examples of the precautionary messages follow. ATTENTION - Information needed to perform a task ATTENTION If the unused DS-3 ports are not deprovisioned before a DS-1/VT...
Page 11: How Commands, Parameters, And Responses Are Represented
CAUTION - Possibility of service interruption or degradation CAUTION Possible loss of service Before continuing, conﬁrm that you are removing the card from the inactive unit of the peripheral module. Subscriber service will be lost if you remove a card from the active unit.
Page 13: Rsc-M Maintenance Introduction
1 RSC-M maintenance introduction The Remote Switch Center Multi-Access (RSC-M) is a remote common peripheral module (CPM) designed to support time division multiplexers (TDM). The support of European Telecommunications Standards Institute (ETSI) protocols by Digital Multiplex Systems (DMS) provides plain old telephone services (POTS) on international multi-vendor remotes.
Page 14 1-2 RSC-M maintenance introduction requires an upgrade. Then the software indicates the addition of the RSC-M PM type for messages and defaults to the GPP. This is a host from a base of a CAS peripheral, or the RCO2. The RSC-M supports an access multiplexer capability (AMC) interface to public switched telephone networks (PSTN) that use CAS protocol with dedicated bearer (voice) channels.
Page 15 RSC-M maintenance introduction 1-3 Figure 1-1 RSC-M main and ext shelf conﬁguration PCM30 PCM30 CAS AMC1 RSC-M main shelf RSC-M ext 1200 shelf CAS AMC6 1380 DMS-100 Family Remote Switching Center Multi-Access Maintenance Manual XPM11 and up...
Page 16 1-4 RSC-M maintenance introduction Figure 1-2 CPM cabinet for RSC-M applications RSC-M cabinet RSC-M RSC-M Extension shelf Extension shelf right left RSC-M main shelf (provisionable) RSC-M main shelf (provisionable) RSC-M main shelf 297-8223-550 Standard 04.02 November 2000...
Page 17: Maintenance Overview
(MSP) and power components of the RSC-M. This section provides descriptions of how software processes affect RSC-M components, and highlights voice and message ﬂows. Northern Telecom (Nortel) digital multiplex switches use access multiplexer capability (AMC) nodes to communicate. This chapter contains the following sections: •...
Page 18: Hardware Description
2-2 Maintenance overview Hardware description This section describes the components of the cabinetized frame. The components include the MSP, RSC-M, and half extension (EXT) shelves. The AMCs are virtual entities to the DMS. The hardware description section does not include virtual entities to the DMS. This section also describes Human machine interface (HMI) commands that allow maintenance personnel access to node status.
Page 19: Modular Supervisory Panel In Rsc-M
Maintenance overview 2-3 When the RSC-M uses a CPM instead of an XPM, the following differences are implemented: • enhancement of the matrix • creation of the PCM circuit card to concentrate all signaling functions in one circuit card • addition of receivable ﬁrmware to the Uniﬁed Processor (UP) (NTMX77) and PCM Signaling Processor (NTMX73) The following section describes these components according to...
Page 20 2-4 Maintenance overview Alarm circuit The alarm circuit consists of transistor logic that the following alarm inputs activate: • battery-input voltage that triggers a FRAMEFAIL signal for an inverter alarm, talk battery module alarm, or fuse module alarm • battery-return voltage that triggers a FRAMEFAIL signal for a converter fail alarm •...
Page 21 Maintenance overview 2-5 Pin-outs The following table shows NTRX41AA circuit card pin-outs. Table 2-1 NTRX41AA output connector J1 (Sheet 1 of 2) RINGALM2 RINGALM1 BAT2 BAT1 BAT4 BAT3 BAT6 BAT5 BAT8 BAT7 BAT10 BAT9 BAT12 BAT11 BAT14 BAT13 BAT16 BAT15 BAT18 BAT17 BAT20...
Page 22 2-6 Maintenance overview Table 2-1 NTRX41AA output connector J1 (Sheet 2 of 2) FANALM2 FANALM1 FANLMPTST AISALM2 AISALM1 TEMPSW2 TEMPSW1 +15FG +15FG +5FG +5FG Power requirements The nominal input voltage is -48V or -60V, but a range from -42V to -75V is acceptable. The maximum input current is 0.75A. Fuse module The fuse module (NTRX43AA) circuit card provides the following outputs for cabinets in a CO:...
Page 23 Maintenance overview 2-7 Pin-outs The following three tables show NTRX43AA circuit card pin-outs. The following table shows the pin-outs for the power input connectors P1 and Table 2-2 Power input connectors P1 and P2 Connector/pin Signal P1 1-9 -48V or -60V P1 10-18 BAT RTN P2 1-9...
Page 24 2-8 Maintenance overview Power requirements The nominal input voltage is -48V or -60V, but a range from -42V through -75V is acceptable. The maximum input current is 30A. Output The following table shows NTRX43AA circuit card output speciﬁcations. Table 2-5 NTRX43AA output speciﬁcations Parameter Value Maximum voltage...
Page 25 Maintenance overview 2-9 The following ﬁgure shows the relationship of NTRX42AA circuit card functional blocks. Figure 2-2 NTRX42AA functional blocks PDC feed Breaker -48V Trip To converter DRIVE (ENABLE) Trip circuits CONVFAIL ARLB and enable ON/OFF RESE To interlocked ILOKOUT NTRX42 ILOKIN (if required)
Page 26 2-10 Maintenance overview Breakers Two 10-A magnetic breakers are stacked in this breaker module. The breakers operate over the complete -48V to -60V range. Pin-outs The following table shows NTRX42AA circuit card pin-outs. Table 2-6 NTRX42AA output connector J1 Signal Signal -48VSW1 CONVFAIL2...
Page 27 Maintenance overview 2-11 Table 2-7 NTRX42AA output speciﬁcations (Sheet 2 of 2) Parameter Value Maximum current 2 x 10A Minimum current Fan power control module The fan power control (FPC) (NTRX54BA) receives A- and B-feed inputs from the PDC. The FPC provides a combined C-feed for the 48 Vdc fans and an alarm output.
Page 28 2-12 Maintenance overview Feed combining Feeds A and B provide redundancy if the feeds combine. If one of the feeds is not present, the other feed supplies power. Fuse fail alarm The system provides an alarm indication in case of a fuse failure.
Page 29: Functional Description
Maintenance overview 2-13 Power requirements The next table lists input power requirement limits for the NTRX54BA circuit card. Table 2-11 Power input requirement limits (A and B) Alarm Signal Standard Minimum Maximum Voltage -48 Vdc -39 Vdc -56 Vdc Current 1.5 A 2.5 A The following table lists NTRX54BA circuit card power output requirement...
Page 30 2-14 Maintenance overview one unit of the XPM is out-of-service (OOS). In-service ﬁrmware downloading supports NTMX77 and NTAX74 processors. Note: In-service ﬁrmware downloading refers to the loading of the ﬁrmware while the unit is InSv. The upgrade of the ﬁrmware occurs with the XPM unit out of service (OOS).
Page 31 Maintenance overview 2-15 ﬁrmware option of the LOADPM command is used. This message states this option is not supported and to use the LOADFW command. Loadﬁle veriﬁcation Integrity checks are performed on the ﬁrmware for loadﬁle accuracy. A loadﬁle record length check ensures the ﬁle is a ﬁrmware ﬁle before submission to the XPM.
Page 32 2-16 Maintenance overview When this procedure is performed on a by-unit basis, perform a switch of activity (SwAct) followed by the RTS command. Execute the LOADFW command with the UPGRADE option on the now inactive unit. The next table lists parameters used with the LOADFW command. Table 2-14 LOADFW parameters Parameter Value...
Page 33: Rsc-M
Maintenance overview 2-17 RSC-M The RSC-M main and EXT interface shelves are the primary operating devices on the DMS side of the RSC-M network. The operating areas of the RSC-M include the following: • speech and message paths in the RSC-M •...
Page 34 2-18 Maintenance overview Figure 2-4 RSC-M main shelf conﬁguration in RSC-M cabinet RSC-M main shelf C-side links C-side links Shield Shield Unit 0 Unit 1 0102 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 2122 23 24 25 26 27 Unit 0 Unit 1...
Page 35 Maintenance overview 2-19 Figure 2-5 RSC-M EXT shelf conﬁguration (NTMX86AA) RSC-M extension shelf Left EXT Right EXT NT0X50 NT0X50 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 Unit 0 Unit 1 Unit 0...
Page 36 2-20 Maintenance overview two PCM30 packlets on the Quad Frame Carrier and the Enhanced Matrix (NTMX75). Note: When the system provisions NTMX87 and four NTMX82AA packlets are not required, the NTMX83 ﬁller packlets are inserted. This action allows fan units to provide correct cooling to the unit. On the C-side of the RSC-M, 16 PCM30 links connect each shelf to a LGCOi+.
Page 37 Maintenance overview 2-21 Speech bus Two speech buses are present. The speech buses are a transmit pulse coded modulation (XPCM) to the C-side and a receive (RPCM) to the P-side. ATTENTION To make sure that maximum performance occurs, do not install the UTR and GTR on the same RCC/RCC2.
Page 38: Extended Distance Capability
2-22 Maintenance overview • setup, maintain and terminate calls • checking parity and PCM path accuracy The card has direct communication with the UP, parallel buses, the direct message link and with intermodule communication (IMC) links. Pack diagnostics allow the UP to conduct several different levels of tests on the NTMX76 card.
Page 39: Peripheral Communication
Maintenance overview 2-23 Peripheral communication The circuit cards in this section translate between the 46 P-side ports and the parallel speech bus. The following are the circuit cards: • enhanced matrix circuit card (NTMX75). The system uses this card on C-side communications.
Page 40 2-24 Maintenance overview Figure 2-6 Functional block diagram of the RSC-M main shelf Speech bus complex CPU bus Global Tone CLASS Receiver Signaling modem NT6X92 Processor resource NTMX73 NT6X78 Parallel speech bus Unified Processor Message NTMX77 Processor NTMX76 or NT6X69 DS30A Interface NTMX74...
Page 41: Emergency Stand-Alone Operation
Maintenance overview 2-25 Emergency stand-alone operation Emergency stand-alone (ESA) operation provides for maintenance operations and a minimum set of call processing activities on the RSC-M. To allow ESA operation capability, the ESA ﬁeld in table RCCINV for the RSC-M must be set to Y.
Page 42: Rsc-M Maintenance
2-26 Maintenance overview Figure 2-7 CAS interface Voice channels Maintenance channels ABCD signaling bits Timing information Signaling provisioning In table carrier maintenance (CARRMTC), CAS interface links are entered as CAS type. In table remote carrier controller P-side inventory (RCCPSINV), P-side links are entered as D30 for DS30. In table RSC-M translations (GPPTRNSL), the selector (SEL) ﬁeld is entered as MELCAS for CAS AMCs.
Page 43: Rsc-M Node Maintenance
Maintenance overview 2-27 • static data update (non-ESA) • RSC-M return-to-service RSC-M node maintenance The RSC-M node maintenance performs the following functions: • processes RSC-M-related maintenance requests from the DMS • directs activities that detect problems, initiates recovery procedures and sustains normal operation of the RSC-M system •...
Page 44: Rsc-M Carrier Maintenance
2-28 Maintenance overview • RTS—Return-to-service the posted RSC-M PM, unit, P-side link or CMR circuit card. • Ofﬂ—Put off-line the posted RSC-M. • LoadPM—Load the RSC-M PM or unit with ﬁrmware. • Disp—Display all PMs in a speciﬁed state. • Next—Move to the next RSC-M in the posted group.
Page 45 Maintenance overview 2-29 If the AMC node initiates a blocking of a line, the system marks the line as permanent lock out (PLO). An attempt to RTS an MB line while the line is blocked on the AMC side results in a PLO state for the line. External bit error rate tests (XBERT) The following XBERT tests are supported: •...
Page 46 2-30 Maintenance overview The LLFA, LLMA, RFAI, and RMAI are the PCM30 carrier alarms. The LLFA and LLMA are associated with signals from the lines to the RSC-M. The type of PCM30 alarms the system generates determine if these alarms are associated with these signals.
Page 47: Rsc-M Lines Maintenance
Maintenance overview 2-31 You must RTS a carrier in the SysB-P state manually. The DMS switch counts alarms, faults, and RTS for speciﬁed time or for audit intervals. At the end of an accumulative audit interval, the system clears the counters.
Page 48 2-32 Maintenance overview • LMB - line module busy. The AMC carrier that contains the line is not INSV. This state occurs when the PCM30 carrier associated with the line is BSYed. • PLO - permanent lock out. The user left a line offhook, or the AMC performed a blocking command on the line.
Page 49 Maintenance overview 2-33 Two LEN number translation commands are available for CAS links on RSC-Ms. • LNTOGPP—translates the AMC description in table GPPTRNSL. This command translates the site, frame, and group of the AMC to the RSC-M and carrier numbers. The LNTOGPP translates the drawer number entered in table line inventory (LNINV), to the RSC-M and carrier numbers.
Page 50 2-34 Maintenance overview • LTA—used only with the release (RLS) parameter to release monitor connections to CPB lines Note: If the monitored line is MB, you can use the LTA, RLS, or RTS commands to release connections. If the line is CPB, you must use the LTA RLS command.
Page 51: Rsc-M Call Process
Maintenance overview 2-35 Figure 2-9 RSC-M monitor connections MAPCI LTPLTA Linked Pty Subscriber 3-Port Line PCM-30 Access RSCM Network HSET Direct Connection 3-Port Connection RSC-M call process The user requires CC call process support for POTS and CLASS to enable call processing in the RSC-M.
Page 52: To Update Static Data
2-36 Maintenance overview with the active unit. Units can lose synchronization if one unit loses an earlier dynamic update. The active unit can contain a temporary interprocessor message link (IPML). This link performs broadcast loading in the node table when a dynamic update occurs. This link causes the tables to be out of synchronization.
Page 53 Maintenance overview 2-37 PMNODES. To prevent differences in the entries for the XPM units, the CM maintains all node information. To clear an ISTb condition on one unit, the XPM must be BSYed and RTSed. For a complete description of the entries for table PMNODES, refer to the Translations Reference Manual.
Page 54 2-38 Maintenance overview Figure 2-10 Enhanced XPM node table synchronization Data Active unit Inactive unit Configuration table map Node and Node and information is not sent to port tables port tables the inactive unit Bulk data update With a Warm SWACT, the inactive unit requests a bulk transfer of critical dynamic data from the active unit.
Page 55 Maintenance overview 2-39 Dynamic data update A dynamic data update occurs continuously. Data that changes in the active unit is updated in the inactive unit. The following information is in dynamic data updates: • AMC state (InSv or BSY) • FSR codes •...
Page 56: Return The Rsc-M To Service
2-40 Maintenance overview Enhanced Dynamic Data Sync (EDDS) The EDDS is a necessary component of warm switch of activity (SWACT). A Warm SWACT preserves processing of all calls. Warm SWACTs occur when the active unit of an XPM drops activity. An XPM trap, REX test, or other causes the active unit of an XPM to drop activity.
Page 57: Switch Of Activity
Maintenance overview 2-41 For example, to return unit 0 of a PM to service, enter the command: >RTS UNIT 0 FORCE Switch of activity A SWACT occurs when the two units of an XPM exchange activity state. The units exchange activity state to allow the unit that handles call processing to become the inactive unit.
Page 58 2-42 Maintenance overview If a controlled warm SWACT fails, the following message interchange occurs: • The CC messages the active unit of the RSC-M to start an audit of the inactive unit. • The system implements the pre-SWACT audit. • A system initiates a warm SWACT based on the audit results.
Page 59 Maintenance overview 2-43 messages that clarify any activity. The following table explains common phrases found in these messages. Table 2-17 Message phrases that describe CC to RSC-M SWACT communication Message phrase Explanation Original active unit Active unit before the SWACT (unit 0) Original inactive unit Inactive unit before the SWACT (unit 1) Newly active unit...
Page 60 2-44 Maintenance overview Figure 2-11 SWACT sequence 1. Manual command or REX 1. RSC-M starts SWACT schedule CC starts warm because of trap or error SWACT 2. System implements pre-SWACT audit Pass Fail 3. SWACT informs inactive 3. If manual, respond to unit to gain activity message to continue >SWACT FORCE...
Page 61 Maintenance overview 2-45 SWACT-back to the originally active unit. The software that drives this feature is the SWACT controller in the CC. An autonomous capability added to the RSC-M software also drives this feature SWACT controller All manual requests and selected system requests for warm SWACTs are routed to the SWACT controller in the CC.
Page 62 2-46 Maintenance overview the SWACT-back. If a SWACT-back is not successful, both RSC-M units are set SysB and returned to service. Note 1: Operational measurements (OM) and peg counts are not reinitialized after a SWACT-back. Note 2: This feature is not supported during RSC-M or CC overload. The SWACT-back is provided for the following manual SWACT commands: •...
Page 63 Maintenance overview 2-47 Uncontrolled switch of activity An uncontrolled SWACT can occur when the following events occur: Each of these states results in a different SWACT plan. • both units are INSV • the active unit is INSV and the inactive unit is ISTb •...
Page 64: Fault Conditions
2-48 Maintenance overview If the original active unit is INSV less than 3 min, the unit returns to service without OOS diagnostics. The reason is that a previous SWACT occurred. If the SWACT occurred in less than 3 min, the active unit must have had OOS diagnostics run.
Page 65 Maintenance overview 2-49 RSC-M writes to the location. The error can occur in the program store or memory store. • Hard occurs when the RSC-M detects a fault and cannot reread or write to the memory location. When a parity fault occurs, the CM determines the action to perform on the RSC-M unit.
Page 66 2-50 Maintenance overview company personnel can check for associated logs, like the PM128, to understand what actions the CM takes. This section provides examples of the messages that associate with the PM181 and PM128 logs. The RSC-M unit can be set ISTB with multiple reasons together. When a QUERYPM FLT occurs at the MAP level, all of the ISTb reasons appear.
Page 67 Maintenance overview 2-51 >querypm flt Node is ISTb One or both Units inservice trouble Unit 0 no fault exists Unit 1 The following inservice troubles exists: Parity audit has detected a hard parity fault. A reload is required to clear this fault. The system will autoload this unit during the next XPM REX test window.
Page 68 2-52 Maintenance overview Parity interrupt handler The interrupt handler generates data on a memory fault. The interrupt handler stores the data in the appropriate area for reporting and action. The requirements for this function follow: • Deﬁne a single entry point that can be bound as an interrupt handler. •...
Page 69 Maintenance overview 2-53 Protected memory is allocated for protectable patches when memory is not available. If protected memory allocation fails, non-protected memory can be used to store the patch. When possible, local patches must be stored in non-dynamic memory access (DMA). Additional non-DMA is allocated in the UP.
Page 70 2-54 Maintenance overview this stage, the recovery process sets up the trapped task for recovery. The recovery process allows the trapped task for recovery to resume. Or, the recovery process initiates a maintenance action to start or set the unit again. If the trap is not fatal, the process restores convicted task to a point of execution.
Page 71 Maintenance overview 2-55 Exception services includes the following activities: • trap administration • trap reporting • trap data access and display Exceptions An exception is a special condition at the ROM or TASK level that preempts normal processing. Both internal and external conditions can cause exceptions.
Page 72 2-56 Maintenance overview Exception data structure improvements Modiﬁcations are made to the processing system data structure to support: • a task to eliminate loss of trap data when multiple traps occur in a 10 s period • accurate capture of trap-speciﬁc data •...
Page 73 Maintenance overview 2-57 Table 2-18 XPM error type and description (Sheet 2 of 2) Type Fatal Description Stack overflow Floating point Division by zero Nil pointer reference <Not Used> <Not Used> I/O Error - Result of system procedure IOCHECK String String indexing Set error Bad CSP (unimplemented standard...
Page 74 2-58 Maintenance overview System component interactions System components interact with the XPM exception processing system to recover from error exceptions. The components also interact to report and display information about error exceptions. The system components that interact are as follows: •...
Page 75: Automatic Maintenance
Maintenance overview 2-59 Errors not speciﬁed to processor cards The types of errors not speciﬁed to processor cards of the RSC-M are as follows: • static data mismatch faults • intermodule communication faults Static data is data that deﬁnes the RSC-M conﬁguration and does not change when calls are connected and disconnected.
Page 76 2-60 Maintenance overview The sequence of events that the REX test state machine or controller performs are as follows: 1. Test the inactive unit (includes INSV tests only). 2. SysB the inactive unit. 3. RTS the inactive unit. This action includes out-of-service (OOS) tests only.
Page 77 Maintenance overview 2-61 Figure 2-13 REX state machine actions Start Test the inactive unit SysB the inactive unit RTS the inactive unit (INSV tests only) (out-of-service tests only) Wait for superframe and data synchronization to occur Initiate a pre-SWACT audit (Refer to to determine if a SWACT note 1)
Page 78 2-62 Maintenance overview For the REX sequence to occur at any time, both units must be INSV. The REX test does not run when the following conditions occur: • one unit is SysB and the PM is ISTb • both units are SysB and the PM is SysB •...
Page 79 Maintenance overview 2-63 fails, the user performs a manual RTS. The user also performs a manual REX, or an automated REX, to return the XPM to service from ISTb. A REX maintenance record is stored for each XPM that contains the following information: •...
Page 80 2-64 Maintenance overview performs recovery and consists of a busy (BSY) and an RTS of the inactive unit. • displays the failure reason for a SWACT denial or failure. The denial or failure occurs during a manual REX test at the MAP terminal as REX failed.
Page 81 Maintenance overview 2-65 The REX test order is as follows: • critical nodes like CM and MS • the number of days since the last system or manual REX test • the order of internal PM number Table REXSCHED must be entered to establish the REX schedule for the RSC-M.
Page 82: Overload Resources
2-66 Maintenance overview • audits of the IML links • parity errors in the RSC-M Overload resources The trafﬁc load on the RSC-M can be an amount of call processing greater than the processor cards can handle. As a result, the RSC-M accepts calls at a slower rate until the overload clears.
Page 83 Maintenance overview 2-67 For additional speciﬁed examples of maintenance procedures, refer to the Trouble locating and clearing section in this document. DMS-100 Family Remote Switching Center Multi-Access Maintenance Manual XPM11 and up...
Page 85: Rsc-M Hardware
The CPM hardware component packaging is provisioned in cabinets. These cabinets can house different hardware units. The conﬁguration of cabinets and the cabinet components determine the services a CPM can offer. Northern Telecom (Nortel) offers CPMs in single-cabinet and multiple cabinet conﬁgurations. CPM cabinet The CPM-based host peripheral provides some advantages over different systems.
Page 86: Single-Cabinetized Rsc-M Configuration
3-2 RSC-M hardware peripheral modules (XPM), line concentrating modules (LCM), and PCM30 line drawers (PLD) selections. The advantages provided are as follows: • reduced footprint because a single cabinet supports up to 120 peripheral side (P-side) PCM30 links • enhanced generic platform for future applications •...
Page 87: Provisioning
RSC-M hardware 3-3 Provisioning Options in provisioning for the single or multiple-cabinet conﬁgurations include central side (C-side) PCM30 links for communication with the host. Options in provisioning also include P-side PCM30 links for connection to AMC nodes. The following ﬁgures show the major components of the RSC-M. DMS-100 Family Remote Switching Center Multi-Access Maintenance Manual XPM11 and up...
Page 88 3-4 RSC-M hardware Figure 3-1 Cabinetized RSC-M RSC-M MSP, shelf pos. 61 Provisionable RCO2 EXT shelf, pos. 47 Provisionable RCO2 main shelf, pos. 33 Provisionable RCO2 main shelf, pos. 19 RCO2 main shelf, pos. 05 cooling unit, shelf pos. 00 NTMX90AB Power Switch 297-8223-550 Standard 04.02 November 2000...
Page 89 RSC-M hardware 3-5 Figure 3-2 RCO2 main shelf conﬁguration (NTMX85AA) RCO2 main shelf C-side links C-side links Shield Shield Unit 0 Unit 1 2627 0102 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 2122 23 24 25 Unit 0 Unit 1 P-side links...
Page 90 3-6 RSC-M hardware Figure 3-3 RSC-M EXT shelf conﬁguration (NTMX86AA) EXTENSION SHELF Left EXT Right EXT Unit 0 Unit 1 Unit 1 Unit 0 NT0X50 NT0X50 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 297-8223-550 Standard 04.02 November 2000...
Page 91: Rsc-M Signaling And Communications
4 RSC-M Signaling and Communications This section describes the protocols the Remote Switching Center Multi-access (RSC-M) uses for international service. The following paragraphs discuss signaling, features supported, and subscriber services. Signaling and communications protocols The RSC-M uses the following protocols, for communications and subscriber services: •...
Page 92: Signaling And Communications Types
4-2 RSC-M Signaling and Communications signaling protocols include two types, DC5A and DC5ADD. The DC5A has delay dial. Signaling and communications types An RSC-M line is not a line circuit, but a 64 kbit/s channel in a 2 Mbit/s PCM30 carrier. Channel associated signaling AMCs use call supervisory signaling that complies with the CAS protocol of ABCD bits.
Page 93: Rsc-M Call Setup Protocol
RSC-M Signaling and Communications 4-3 The following signaling is implemented on interfaces to CAS AMCs: • The signaling processor (SIGP) circuit card provides messaging control of CAS links. • The PCM30 link interface circuit cards provide the timing, link identiﬁcation, and cyclic redundancy check-4 (CRC-4) error detection. •...
Page 94: Cas To Btup And Btup To Cas Signaling
4-4 RSC-M Signaling and Communications • T3-restarts after each digit is received. Time-out indicates all digits are collected and starts T7. • Timed-release disconnect (TRD)-long release disconnect timer. Starts when the terminating line suspends (SUS) the call. Stops if the terminating line restores (RES) connection before time-out.
Page 95 RSC-M Signaling and Communications 4-5 Figure 4-2 BTUP to CAS line connection PLGC PLGC RSCM RSCM BTUP interconnect Note: During CAS setup digits can be DTMF or dial pulsed loop disconnect. DMS-100 Family Remote Switching Center Multi-Access Maintenance Manual XPM11 and up...
Page 96 4-6 RSC-M Signaling and Communications Figure 4-3 Call origination sequence CAS to CAS originating terminating office office BTUP seizure Start T1, T2 digits Stop T2 Start T3 last digit IFAM Stop T3 Start T7 call arrival Stop T7 Start T9 cadenced using ringing and silence signals ring-...
Page 97 RSC-M Signaling and Communications 4-7 3. Terminating exchange to AMC When the terminating exchange receives the IFAM, the exchange sends a call arrival signal to the AMC node. The call arrival signal consists of ringing and silence signals. The system applies ringing to the line.
Page 98 4-8 RSC-M Signaling and Communications Call release sequencing from a CAS line to a CAS line (originator release). 1. AMC to originating exchange When a calling subscriber goes on-hook, the AMC node sends a clear forward signal to the originating exchange. The originating exchange sends a disconnect clear signal backwards for 480 ms followed by idle code.
Page 99 RSC-M Signaling and Communications 4-9 Call release sequencing from a CAS line to a CAS line terminator release. 1. AMC to terminating exchange When a called subscriber goes on-hook, the AMC node sends a clear back signal to the terminating exchange. The terminating exchange sends a SUS message to the originating exchange.
Page 100 4-10 RSC-M Signaling and Communications Table 4-1 CAS incoming signals (Sheet 2 of 2) Received by DMS from Transmitted by DMS to Status clear back 0101 1101 re-answer 0101 0101 call re-established 0101 0101 clear forward 1101 disconnect clear 0001. Refer to note 3. blocking 1101 1111...
Page 101: Dc5 To Btup And Btup To Dc5 Signaling
RSC-M Signaling and Communications 4-11 Table 4-2 CAS outgoing signals (Sheet 2 of 2) Received by DMS from Transmitted by DMS to Status clear forward 1101 disconnect clear 0001. Refer to note 2. blocking 1111 1101 Note 1: Ringing cadence applies to the AMC. The ringing cadence is setup using the ringing and silence signals.
Page 102 4-12 RSC-M Signaling and Communications Figure 4-6 BTUP to DC5A line connection PLGC PLGC RSCM RSCM BTUP interconnect DC5A DC5A DC5ADD DC5ADD PBX/MUX PBX/MUX 297-8223-550 Standard 04.02 November 2000...
Page 103 RSC-M Signaling and Communications 4-13 Figure 4-7 DC5A to DC5A call setup originating terminating office office DC5A DC5A BTUP seizure Start T1,T2 DTMF digits Stop T2 Start T3 last DTMF digit IFAM Stop T3 Start T7 seizure Stop T7 Start T9 DTMF digits last DTMF digit ring-...
Page 104 4-14 RSC-M Signaling and Communications terminating exchange. Digits analysis can deﬁne the number length, in which event the T3 timer is stops. In the event of a number length that is not known, the expiration of the T3 timer indicates the last digit. After the originating exchange sends an IFAM message, the T7 timer starts.
Page 105 RSC-M Signaling and Communications 4-15 Figure 4-8 DC5ADD to DC5ADD call origination originating terminating DC5ADD DC5ADD office office BTUP ic og ic og seizure Start T1 dial delay proceed to send Start T2 DTMF digits Stop T2 Start T3 last DTMF digit IFAM Stop T3 Start T7...
Page 106 4-16 RSC-M Signaling and Communications exchange receives the ﬁrst DTMF digit the T2 timer stops and T3 starts. This action restarts each time the exchange receives a DTMF digit. 2. Originating exchange to terminating exchange After the originating exchange receives all DTMF digits and selects an outgoing route, the exchange sends an IAM the terminating exchange.
Page 107 RSC-M Signaling and Communications 4-17 Figure 4-9 Call release sequence DC5A to DC5A (originator release) originating terminating office office DC5A/DC5ADD BTUP DC5A/DC5ADD speech clear forward clear forward Start T1' and T5 idle idle Stop T1' and T5 idle Call release sequencing from a DC5A line to a DC5A line (originator release). 1.
Page 108 4-18 RSC-M Signaling and Communications Figure 4-10 Call release sequence DC5A to DC5A (terminator release) originating terminating office office DC5A/DC5ADD BTUP DC5A/DC5ADD speech clear back clear back * Start long TRD clear forward clear forward Start T1' and T5 idle idle Stop T1' and T5 idle...
Page 109 RSC-M Signaling and Communications 4-19 DC5A and DC5ADD AMC to DMS signals The following tables describe the sequencing signals exchanged between the DMS switch and an AMC node during incoming and outgoing call processing. Table 4-3 DC5A and DC5ADD incoming signals Received by DMS from Transmitted by DMS to Status...
Page 110 Table 4-4 DC5A and DC5ADD outgoing signals (Sheet 2 of 2) Received by DMS from Transmitted by DMS to Status delay dial 0101 0101. Refer to note. proceed to send 1101 1101. Refer to note. call established 0101 0101 clear back 1101 0101 re-answer...
Page 111: Rsc-M Alarm Clearing Procedures
5 RSC-M alarm clearing procedures This section contains alarm clearing procedures for the Remote Switching Center Multi-access (RSC-M). These procedures describe alarm clearing procedures that maintenance engineering and ﬁeld maintenance personnel can use. DMS-100 Family Remote Switching Center Multi-Access Maintenance Manual XPM11 and up...
Page 112: Ext Rsc-M/Rco2 Rsc-M Cabinet With Msp Shelf Major
5-2 RSC-M alarm clearing procedures Ext RSC-M/RCO2 RSC-M cabinet with MSP shelf major Alarm display Trks APPL 1FSP Indication The alarm code FSP under the Ext header of the alarm banner indicates an Ext modular supervisory panel (MSP) alarm. The alarm banner appears at the MTC level of the MAP display.
Page 113 RSC-M alarm clearing procedures Ext RSC-M/RCO2 RSC-M cabinet with MSP shelf major (continued) Summary of clearing an Ext FSP major alarm for a RSC-M cabinet with an MSP shelf Repair cooling This flowchart summarizes the FAN FAIL unit procedure. lamp lit? Use the instructions that follow this flowchart to perform the procedure.
Page 114 5-4 RSC-M alarm clearing procedures Ext RSC-M/RCO2 RSC-M cabinet with MSP shelf major (continued) Clearing an Ext FSP major alarm for an RSC-M cabinet with an MSP shelf At the front of the RSC-M cabinet Determine if the FAN FAIL lamp on the MSP is lit. If the FAN FAIL lamp is lit step 35...
Page 115 RSC-M alarm clearing procedures Ext RSC-M/RCO2 RSC-M cabinet with MSP shelf major (continued) If the fuse blows again step 40 Determine if the POWER switch on the power converter is ON or OFF. If the POWER switch is OFF step 8 is ON step 9 Set the POWER switch on the power converter to ON.
Page 116 5-6 RSC-M alarm clearing procedures Ext RSC-M/RCO2 RSC-M cabinet with MSP shelf major (continued) Release the power switch on the converter to the ON position. If the circuit breaker turns OFF, step 15 and the CONVERTER FAIL LED remains lit remains ON, step 26 and the CONVERTER FAIL LED is lit...
Page 117 RSC-M alarm clearing procedures Ext RSC-M/RCO2 RSC-M cabinet with MSP shelf major (continued) At the CPDC Locate the circuit breaker that powers the RSC-M shelf and unit (0 or 1). Determine if the circuit breaker is ON or OFF. If the circuit breaker is OFF step 23 is ON...
Page 118 5-8 RSC-M alarm clearing procedures Ext RSC-M/RCO2 RSC-M cabinet with MSP shelf major (continued) Determine if the pins in the backplane of the shelf are bent or short-circuited. Note: The backplane is at the rear of the RSC-M cabinet. If the pins are not bent or short-circuited step 30 are bent or short-circuited...
Page 119 RSC-M alarm clearing procedures Ext RSC-M/RCO2 RSC-M cabinet with MSP shelf 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 perform the appropriate step 39...
Page 120: Pm Rsc-M/Rco2 Critical
5-10 RSC-M alarm clearing procedures PM RSC-M/RCO2 critical Alarm display Trks APPL nRCO2 Indication An nRCO2 *C* under the PM subsystem header at the MTC level of the MAP display indicates an RSC-M critical alarm. Note: This section refers to RSC-M/RCO2 as RCO2. When software generates messages to the MAP terminal, the software does not differentiate between the two types of RCO2.
Page 121 RSC-M alarm clearing procedures 5-11 PM RSC-M/RCO2 critical (continued) Summary of a PM RSC-M/RCO2 critical alarm Access PM This flowchart summarizes the ManB links level at MAP to procedure. silence alarm Use the instructions that follow this flowchart to perform the procedure.
Page 122 5-12 RSC-M alarm clearing procedures PM RSC-M/RCO2 critical (continued) Clearing a PM RSC-M/RCO2 critical alarm At the MAP display ATTENTION Enter this procedure from the PM system-level alarm clearing procedure step that identiﬁed an RCO2-associated fault. To silence the alarm, type: >MAPCI;MTC;SIL and press the Enter key.
Page 123 RSC-M alarm clearing procedures 5-13 PM RSC-M/RCO2 critical (continued) To check for fault indicators, type >querypm and press the Enter key. Example of a MAP display: Trks APPL 1RCO2 RCO2 SysB ManB OffL CBsy ISTb InSv 0 Quit 2 Post_ RCO2 3 ListSet RCO2...
Page 124 5-14 RSC-M alarm clearing procedures PM RSC-M/RCO2 critical (continued) operating company policy and according to the type of device that generates the log reports. If log reports are available step 10 are not available step 7 To activate the LOGUTIL database, type >QUIT ALL;LOGUTIL PM and press the Enter key.
Page 125 RSC-M alarm clearing procedures 5-15 PM RSC-M/RCO2 critical (continued) Example of a MAP response: UNIT unit_no in ESA MODE. THIS ACTION WILL CAUSE ESA EXIT AND ABORT n CALLS PLEASE CONFIRM (“YES” OR “NO”) where unit_no is the number of the RCO2 identiﬁed in step 2 is the number of calls now in progress To conﬁrm the command in step 12, type >yes...
Page 126 5-16 RSC-M alarm clearing procedures PM RSC-M/RCO2 critical (continued) and press the Enter key. Note: A host PM is a PCM-30 line group controller (PLGC). Example of a MAP response: LINK 0: PLGC 1 0;CAP MS;STATUS: OK,;MSGCOND: OPN,Restricted LINK 1: PLGC 1 1;CAP S;STATUS: LINK 2: PLGC...
Page 127 RSC-M alarm clearing procedures 5-17 PM RSC-M/RCO2 critical (continued) and press the Enter key. Example of a MAP response: LINK 0: RCO2 1 0;CAP MS;STATUS: OK,;MSGCOND: OPN,Restricted LINK 1: RCO2 1 1;CAP S;STATUS: LINK 2: RCO2 1 2;CAP MS;STATUS: OK,;MSGCOND:OPN,Unrestricted LINK 4: RCO2 1 4;CAP S;STATUS:...
Page 128 5-18 RSC-M alarm clearing procedures PM RSC-M/RCO2 critical (continued) Note: The MORE ... at the bottom of the display indicates you can observe more links. To observe these links, type >NEXT and press the Enter key. Perform the procedure to repair or correct the defective trunk indicated by the MAP display in step 20.
Page 129 RSC-M alarm clearing procedures 5-19 PM RSC-M/RCO2 critical (continued) To return the link to service, type >RTS link link_no and press the Enter key. where link_no is the number of the link identiﬁed in step 17 Note: Perform this step for each link that was made busy. To post the inactive RCO2, type >post RCO2 rco2_no and press the Enter key.
Page 130 5-20 RSC-M alarm clearing procedures PM RSC-M/RCO2 critical (continued) If TST fails step 31 To return the inactive RCO2 unit to service, type >rts unit unit_no and press the Enter key. where unit_no is the number of the RCO2 tested in step 29 If RTS passes step 37...
Page 131 RSC-M alarm clearing procedures 5-21 PM RSC-M/RCO2 critical (end) Go to Recovery Procedures for instructions on recovering the RCO2. When you complete the recovery procedure, return to step 4 and complete the alarm clearing procedure. Contact the next level of support to obtain more help in clearing this alarm. This procedure is complete.
Page 132: Pm Rsc-M/Rco2 Major
5-22 RSC-M alarm clearing procedures PM RSC-M/RCO2 major Alarm display Trks 1RCO2 Indication The alarm code 1RCO2 M under the PM subsystem header at the MTC level of the MAP display indicates an RSC-M major alarm. Note: This section refers to RSC-M/RCO2 as RCO2. When software sends messages to the MAP terminal, the software does not know the difference between the two types of RCO2.
Page 133 RSC-M alarm clearing procedures 5-23 PM RSC-M/RCO2 Major (continued) Summary of clearing a PM RSC-M/RCO2 major alarm This flowchart summarizes the procedure. Use the instructions that follow Access PM level this flowchart to perform the of MAP and RTS the RCO2 unit procedure.
Page 134: Post Rco2 Rco2_No
5-24 RSC-M alarm clearing procedures PM RSC-M/RCO2 Major (continued) Clearing a PM RSC-M/RCO2 major alarm At the MAP display ATTENTION Enter this procedure from a PM system-level clearing an alarm procedure step. This PM system-level clearing alarm procedure step identiﬁes an RCO2-associated fault.
Page 135: Bsy Unit Unit_No
RSC-M alarm clearing procedures 5-25 PM RSC-M/RCO2 Major (continued) Trks 1RCO2 RCO2 SysB ManB OffL CBsy ISTb InSv 0 Quit 2 Post_ RCO2 3 ListSet RCO2 2 ISTb Links_OOS: CSide 1, PSide 5 TRNSL_ Unit0: Act InSv 6 Tst_ Unit1: Inact ISTb 7 Bsy_ QUERYPM FLT...
Page 136: If Tst Do
5-26 RSC-M alarm clearing procedures PM RSC-M/RCO2 Major (continued) Test Passed Test Failed If TST passes step 24 fails, and the system produces a step 25 card list fails, and the system produces a step 7 card list To identify C-side links to the host PM that are in a SysB condition, type >TRNSL C and press the Enter key.
Page 137 RSC-M alarm clearing procedures 5-27 PM RSC-M/RCO2 Major (continued) Trks 1RCO2 PLGC SysB ManB OffL CBsy ISTb InSv 0 Quit 2 Post_ PLGC 3 ListSet PLGC 1 ISTb Links_OOS: CSide 0, PSide 5 Trnsl_ Unit0: Act InSv 6 Tst_ Unit1: Inact InSv 7 Bsy_ 8 RTS_...
Page 138 5-28 RSC-M alarm clearing procedures PM RSC-M/RCO2 Major (continued) link_no is the number of the link manually busied in step 10 If RTS passes and alarm persists step 29 passes and alarm clears step 16 fails step 12 To display any links that have faults, type >TRKS;CARRIER;POST host_pm host_pm_no and press the Enter key.
Page 139 RSC-M alarm clearing procedures 5-29 PM RSC-M/RCO2 Major (continued) If TST fails step 29 To post the host PM, type >PM;POST host_pm host_pm_no and press the Enter key. where host_pm is the PLGC posted in step 8 host_pm_no is the number of the PLGC To return the link to service, type >RTS LINK link_no and press the Enter key.
Page 140 5-30 RSC-M alarm clearing procedures PM RSC-M/RCO2 Major (continued) If RTS fails step 29 To switch activity (SwAct) of the RCO2 units, to make sure the unit being tested is inactive, type >SWACT and press the Enter key. Sample response on the MAP display: SITE RPOS BAY_ID DESCRIPTION...
Page 141 RSC-M alarm clearing procedures 5-31 PM RSC-M/RCO2 Major (continued) To busy the inactive RCO2 unit, type >BSY UNIT unit_no and press the Enter key. where unit_no is the number of the inactive RCO2 unit To perform an out-of-service (OOS) test on the inactive RCO2 unit, type >TST UNIT unit_no and press the Enter key.
Page 142 5-32 RSC-M alarm clearing procedures PM RSC-M/RCO2 Major (end) If all cards on the list are not replaced step 28 Determine if the user replaced the NTMX82 circuit card. If the NTMX82 card is replaced step 29 is not replaced step 27 Refer to the card replacement procedure for the NTMX82 circuit card in Card Replacement Procedures .
Page 143 RSC-M alarm clearing procedures 5-33 PM RSC-M/RCO2 minor Alarm display Trks 1RCO2 Indication At the MTC level of the MAP display, a 1RCO2 under the peripheral module (PM) subsystem header indicates an remote switching center multi-access (RSC-M) minor alarm. Note: In this section RSC-M/RCO2 is known as RCO2. When software outputs messages to the MAP terminal, the software does not recognize the difference between the two types of RCO2.
Page 144 5-34 RSC-M alarm clearing procedures PM RSC-M/RCO2 minor (continued) Summary of clearing a PM RSC-M/RCO2 minor alarm This flowchart summarizes the procedure. Use the instructions that follow Access PM level this flowchart to perform the of MAP and RTS the RCO2 unit procedure.
Page 145 RSC-M alarm clearing procedures 5-35 PM RSC-M/RCO2 minor (continued) Clearing a PM RSC-M/RCO2 minor alarm At the MAP display ATTENTION Enter this procedure from a peripheral module (PM) system-level alarm clearing procedure step that identiﬁed an RCO2-associated fault. To silence the alarm, if required, type >MAPCI;MTC;PM;SIL and press the Enter key.
Page 146 5-36 RSC-M alarm clearing procedures PM RSC-M/RCO2 minor (continued) Trks 1RCO2 RCO2 SysB ManB OffL CBsy ISTb InSv 0 Quit 2 Post_ RCO2 3 ListSet RCO2 2 ISTb Links_OOS: CSide 1, PSide 5 TRNSL_ Unit0: Act InSv 6 Tst_ Unit1: Inact ISTb 7 Bsy_ QUERYPM FLT...
Page 147: To Post The Host Pm, Type
RSC-M alarm clearing procedures 5-37 PM RSC-M/RCO2 minor (continued) Test Passed Test Failed If TST passes step 19 fails and the system produces a step 20 card list fails and the system does not step 7 produce a card list To identify central-side (C-side) links to the host PM that are busied by the system (SysB), type >TRNSL C...
Page 148: Where Link_No
5-38 RSC-M alarm clearing procedures PM RSC-M/RCO2 minor (continued) Trks 1RCO2 PLGC SysB ManB OffL CBsy ISTb InSv 0 Quit 2 Post_ PLGC 3 ListSet PLGC 1 ISTb Links_OOS: CSide 0, PSide 5 Trnsl_ Unit0: Act InSv 6 Tst_ Unit1: Inact InSv 7 Bsy_ 8 RTS_...
Page 149: Pm Rsc-M/Rco2 Minor
RSC-M alarm clearing procedures 5-39 PM RSC-M/RCO2 minor (continued) link_no is the number of the link manually busied in step 10 If TST passes and alarm persists step 24 passes and alarm clears step 17 fails step 12 To display any links that can have defects, type >TRKS;CARRIER;POST host host_no and press the Enter key.
Page 150 5-40 RSC-M alarm clearing procedures PM RSC-M/RCO2 minor (continued) for the ManB link in the example is 2. If TST passes and alarm clears step 15 fails step 24 To post the host PM, type >PM;POST host_pm host_pm_no and press the Enter key. where host_pm is the PLGC in step 8...
Page 151: If Rts
RSC-M alarm clearing procedures 5-41 PM RSC-M/RCO2 minor (end) where unit_no is the number of the RCO2 in step 18 If RTS passed step 25 failed step 20 Observe the card listing in the following MAP display. Typical response on the MAP display: SITE RPOS BAY_ID DESCRIPTION...
Page 153: Rsc-M Card Replacement Procedures
6 RSC-M card replacement procedures This section contains card replacement procedures for the Remote Switching Center Multi-access. These procedures describe the removal and replacement of defective cards. Maintenance engineering and ﬁeld maintenance personnel use these procedures. This section references the following common procedures: •...
Page 154: Nt6X69 In An Rsc-M
6-2 RSC-M card replacement procedures NT6X69 in an RSC-M Application This procedure replaces an NT6X69 circuit card in a Remote Switching Center Multi-access (RSC-M) main shelf. Note: In the examples of this section, RSC-M refers to RCO2. When software outputs messages to the MAP terminal, the software does not differentiate between the two types of RCO2.
Page 155 RSC-M card replacement procedures NT6X69 in an RSC-M (continued) Summary of card replacement procedure for an NT6X69 card in an RSC-M RCO2 This flowchart is a summary of the procedure. Locate Use the flowchart to review the defective card procedure. Follow the steps to perform the procedure.
Page 156 6-4 RSC-M card replacement procedures NT6X69 in an RSC-M (continued) To Replace a/an NT6X69 in an RSC-M At your Current Location: Continue with this procedure if: • a step in a maintenance procedure directs you to this card • you use this procedure to verify or accept cards •...
Page 157 RSC-M card replacement procedures NT6X69 in an RSC-M (continued) Trks Appl RCO2 SysB ManB OffL CBsy ISTb InSv 0 Quit 2 Post_ RCO2 3 ListSet RCO2 0 InSv Links_OOS: 5 TRNSL Unit0: Inact InSv 6 TST Unit1: Act InSv 7 BSY 8 RTS 9 OffL 10 LoadPM_...
Page 158 6-6 RSC-M card replacement procedures NT6X69 in an RSC-M (continued) To conﬁrm the system prompt, type: >YES and press the Enter key. When both units are in-service, proceed to the next step. At the RSC-M Place a sign with the words Active unit-Do not touch on the unit. Do not attach the sign with magnets or tape.
Page 159 RSC-M card replacement procedures NT6X69 in an RSC-M (continued) At the RSC-M WARNING Static electricity damage Before you remove cards, put on a wrist strap that connects to the wrist strap grounding point on the left side of the modular supervisory panel (MSP) of the RSC-M.
Page 160 6-8 RSC-M card replacement procedures NT6X69 in an RSC-M (continued) Make sure the replacement card has the same PEC and PEC sufﬁx, as the card you removed. Open the locking levers on the replacement card. Align the card with the slots in the shelf. Carefully slide the card in the shelf.
Page 161: Passes Step
RSC-M card replacement procedures NT6X69 in an RSC-M (continued) CAUTION Loss of subscriber service Subscriber service can occur in the active unit when you reseat the NT6X69 card. Peform this procedure during low trafﬁc periods. Seat and lock the card. Use your ﬁngers or thumbs to push on the upper and lower edges of the faceplate.
Page 162: And Press The Enter Key
6-10 RSC-M card replacement procedures NT6X69 in an RSC-M (continued) If PMRESET fails with a card list step 20 To load the inactive unit, type: >LOADPM UNIT rco2_unit_no CC and press the Enter key. where rco2_unit_no is the number of the inactive RCO2 unit zero or one If LOADPM passes step 16...
Page 163 RSC-M card replacement procedures 6-11 NT6X69 in an RSC-M (end) card on the list. Go to the appropriate card replacement procedure for that card in this manual. For additional help, contact the next level of support. This procedure is complete. Remove the sign from the active unit. Return to the maintenance procedure that directed you to this card replacement procedure.
Page 164: Nt6X78 In An Rsc-M
6-12 RSC-M card replacement procedures NT6X78 in an RSC-M Application Note: In the examples of this section RSC-M refers to RCO2. When software outputs messages to the MAP terminal the software does not differentiate between the two types of RCO2. Suffixes Name NT6X78...
Page 165 RSC-M card replacement procedures 6-13 NT6X78 in an RSC-M (continued) Summary of replacing an NT6X78 in an RSC-M This flowchart is a summary of Post RSC-M the procedure. and make unit inactive Use the flowchart to review the procedure. Follow the steps to perform the procedure.
Page 166 6-14 RSC-M card replacement procedures NT6X78 in an RSC-M (continued) Summary of replacing an NT6X78 in an RSC-M At the MAP display: Proceed if one the following conditions apply: • a step in a maintenance procedure directs you to this card •...
Page 167 RSC-M card replacement procedures 6-15 NT6X78 in an RSC-M (continued) Example of a MAP response: PM Type: RCO2 PM No.: 0 PM Int. No.: 9 Node_No: 24 PMs Equipped: 53 Loadname: UK00ADU6 EEPRom Load: BNK0N205 WARM SWACT is supported and available RCO2 0 is included in the REX schedule.
Page 168 6-16 RSC-M card replacement procedures NT6X78 in an RSC-M (continued) Unit0: Inact SysB Mtce Unit1: ISTb RCO2 0 SwAct Passed Note: A maintenance ﬂag (Mtce) can appear. This Mtce indicates system-initiated maintenance tasks are in progress. Wait until the ﬂag disappears from the status lines for both PM units before you proceed to the next step.
Page 169: Where Unit_No
RSC-M card replacement procedures 6-17 NT6X78 in an RSC-M (continued) Use the following information to determine the next step: If you are directed to this procedure from a maintenance step 13 procedure are not directed to this procedure from a maintenance step 14 procedure Remove the sign from the active unit.
Page 170 6-18 RSC-M card replacement procedures NT6X78 in an RSC-M (end) For additional help with the SWACT, contact the the next level of support. Note: The system can recommend the use of the SWACT command with the FORCE option. If this condition occurs, contact ofﬁce personnel to determine if use of the FORCE option is correct.
Page 171: Nt6X92 In An Rsc-M
RSC-M card replacement procedures 6-19 NT6X92 in an RSC-M Application Use this procedure to replace an NT6X92 circuit card in a Remote Switching Center Multi-access (RSC-M) main shelf. Note: In the examples of this section, RSC-M refers to RCO2. When software outputs messages to the MAP terminal, the software does not differentiate between the two types of RCO2.
Page 172 6-20 RSC-M card replacement procedures NT6X92 in an RSC-M (continued) Summary of Replacing an NT6X92 in an RSC-M This flowchart is a summary of Post RSC-M the procedure. and make unit inactive Use the flowchart to review the procedure. Follow the steps to perform the procedure.
Page 173 RSC-M card replacement procedures 6-21 NT6X92 in an RSC-M (continued) To replace an NT6X92 in an RSC-M At the MAP display Proceed if one of the following conditions apply: • a step in a maintenance procedure directed you to this card replacement procedure •...
Page 174 6-22 RSC-M card replacement procedures NT6X92 in an RSC-M (continued) RCO2 SysB ManB OffL CBsy ISTb InSv 0 Quit 2 Post_ RCO2 3 ListSet RCO2 0 ISTb Links_OOS: CSide 1, PSide 5 TRNSL Unit0: Inact ISTb 6 TST Unit1: Act InSv 7 BSY 8 RTS 9 OffL...
Page 175 RSC-M card replacement procedures 6-23 NT6X92 in an RSC-M (continued) RCO2 0 A Warm SwAct will be performed after data sync of active terminals. Please confirm (”YES”, ”Y”, ”NO”, or ”N”): If the system prompts you to confirm a warm step 7 SWACT rejects the SWACT...
Page 176 6-24 RSC-M card replacement procedures NT6X92 in an RSC-M (continued) RCO2 0 ISTb Links_OOS: CSide 0 , PSide Unit0: Inact ManB Unit1: ISTb Bsy INACTIVE RCO2 0 Unit 0 Bsy Passed If the BSY command passes step 11 fails step 19 At the shelf WARNING Static electricity damage...
Page 177 RSC-M card replacement procedures 6-25 NT6X92 in an RSC-M (end) At the MAP terminal To return the inactive unit to service, type: >RTS INACTIVE and press the Enter key. If the RTS command passes step 16 fails step 19 Remove the sign from the active unit. Go to the common returning a card procedure in this document.
Page 178: Ntmx72 In An Rsc-M
6-26 RSC-M card replacement procedures NTMX72 in an RSC-M Application Use this procedure to replace an NTMX72 circuit card in a Remote Switching Center Multi-Access (RSC-M) main shelf. Note: In the examples in this section RSC-M refers to RCO2. When software outputs messages to the MAP terminal, the software does not differentiate between the two types of RCO2.
Page 179 RSC-M card replacement procedures 6-27 NTMX72 in an RSC-M (continued) Summary of replacing an NTMX72 in an RSC-M This flowchart is a summary of the procedure. Post RSC-M and make unit Use the flowchart to review the inactive procdure. Follow the steps to perform the procedure.
Page 180 6-28 RSC-M card replacement procedures NTMX72 in an RSC-M (continued) To replace an NTMX72 in an RSC-M At the MAP display Proceed if one of the following conditions apply: • a step in a maintenance procedure directed you to this card replacement procedure •...
Page 181 RSC-M card replacement procedures 6-29 NTMX72 in an RSC-M (continued) RSC-M SysB ManB OffL CBsy ISTb InSv 0 Quit 2 Post_ RCO2 3 ListSet RCO2 0 ISTb Links_OOS: CSide 1, PSide 5 TRNSL Unit0: Inact CBsy 6 TST Unit1: Act InSv 7 BSY 8 RTS 9 OffL...
Page 182 6-30 RSC-M card replacement procedures NTMX72 in an RSC-M (continued) RCO2 0 A Warm SwAct will be performed after data sync of active terminals. Please confirm (”YES”, ”Y”, ”NO”, or ”N”): If the system prompts you to confirm a warm step 7 SWACT rejects the SWACT...
Page 183 RSC-M card replacement procedures 6-31 NTMX72 in an RSC-M (continued) RCO2 0 ISTb Links_OOS: CSide 0 , PSide Unit0: Inact ManB Unit1: ISTb Bsy INACTIVE RCO2 0 Unit 0 Bsy Passed If the BSY command passes step 11 fails step 23 To reset the inactive RCO2 unit, type: >PMRESET UNIT...
Page 184 6-32 RSC-M card replacement procedures NTMX72 in an RSC-M (continued) At the shelf WARNING Static electricity damage Wear a wrist strap that connects to the wrist-strap grounding point of the modular supervisory panel (MSP) to handle circuit cards. This protects the cards against static electricity damage.
Page 185 RSC-M card replacement procedures 6-33 NTMX72 in an RSC-M (end) and press the Enter key. If the LOADPM command passes step 19 fails step 23 To return the inactive unit to service, type: >RTS INACTIVE and press the Enter key. If the RTS command passed step 20...
Page 186: Ntmx73 In An Rsc-M
6-34 RSC-M card replacement procedures NTMX73 in an RSC-M Application Use this procedure to replace an NTMX73 circuit card in a Remote Switching Center Multi-access (RSC-M) main shelf. Note: In this section, RSC-M is referred to as RCO2 in the examples. When software outputs messages to the MAP terminal, the software does not differentiate between the two types of RCO2.
Page 187 RSC-M card replacement procedures 6-35 NTMX73 in an RSC-M (continued) Summary of replacing an NTMX73 in an RSC-M This procedure contains a Post RSC-M summary flowchart and a list of and make the steps. Use the flowchart to unit inactive review the procedure.
Page 188 6-36 RSC-M card replacement procedures NTMX73 in an RSC-M (continued) Replacing an NTMX73 in an RSC-M At the MAP display Proceed if: • a step in a maintenance procedure directs you to this card replacement procedure • you use the procedure to verify or accept cards •...
Page 189 RSC-M card replacement procedures 6-37 NTMX73 in an RSC-M (continued) RCO2 SysB ManB OffL CBsy ISTb InSv 0 Quit 2 Post_ RCO2 3 ListSet RCO2 0 ISTb Links_OOS: CSide 1, PSide 5 TRNSL Unit0: Inact ISTb 6 TST Unit1: Act InSv 7 BSY 8 RTS 9 OffL...
Page 190 6-38 RSC-M card replacement procedures NTMX73 in an RSC-M (continued) RCO2 0 A Warm SwAct will be performed after data sync of active terminals. Please confirm (”YES”, ”Y”, ”NO”, or ”N”): the system prompts you to confirm a warm SWACT step 7 the system rejects the SWACT step 22...
Page 191 RSC-M card replacement procedures 6-39 NTMX73 in an RSC-M (continued) RSC-M 0 ISTb Links_OOS: CSide 0 , PSide Unit0: Inact ManB Unit1: ISTb bsy INACTIVE RCO2 0 Unit 0 Bsy Passed If the BSY command passes step 11 fails step 21 To reset the inactive RCO2 unit, type: >PMRESET UNIT unit_no NORUN and press the Enter key.
Page 192 6-40 RSC-M card replacement procedures NTMX73 in an RSC-M (end) a maintenance procedure does not direct you to this step 16 procedure Remove the sign from the active unit. Return to the maintenance procedure that sent you to this procedure and continue as directed. At the point where the system produces a defective card list, identify the next defective card on the list.
Page 193: Ntmx74 In An Rsc-M
RSC-M card replacement procedures 6-41 NTMX74 in an RSC-M Application Use this procedure to replace an NTMX74 card in the Remote Switching Center Multi-Access (RSC-M) shelf. Note: In this section RSC-M is referred to as RCO2 in the examples. When software outputs messages to the MAP terminal the system does not differentiate between the two types of RCO2.
Page 194 6-42 RSC-M card replacement procedures NTMX74 in an RSC-M (continued) Summary of Replacing an NTMX74 in an RSC-M This procedure contains a Locate summary and a list of steps. defective Use the flowchart to review the card procedure. Follow the steps to perform the procedure.
Page 195 RSC-M card replacement procedures 6-43 NTMX74 in an RSC-M (continued) Replacing an NTMX74 in an RSC-M WARNING Loss of service When you replace a card in the RSC-M, make sure that the unit in which you replace the card is inactive.
Page 196 6-44 RSC-M card replacement procedures NTMX74 in an RSC-M (continued) Trks Appl 1RCO2 RCO2 SysB ManB OffL CBsy ISTb InSv 0 Quit 2 Post_ RCO2 3 ListSet RCO2 0 ISTb Links_OOS: CSide 1, PSide 5 TRNSL Unit0: Inact InSv 6 TST Unit1: Act InSv 7 BSY...
Page 197 RSC-M card replacement procedures 6-45 NTMX74 in an RSC-M (continued) At the MAP terminal To busy the inactive PM unit, type: >bsy INACTIVE and press the Enter key. To set the Manual Busy (ManB) RCO2 unit to the ROM level to prevent trapping, type: >PMRESET UNIT unit_no NORUN and press the Enter key.
Page 198 6-46 RSC-M card replacement procedures NTMX74 in an RSC-M (continued) Open the locking levers on the card you must replace. Carefully pull the card toward you until the card clears the shelf. Make sure the replacement card has the same PEC, and PEC sufﬁx, as the card you remove.
Page 199 RSC-M card replacement procedures 6-47 NTMX74 in an RSC-M (continued) Seat and lock the card. Use your ﬁngers or thumbs to push on the upper and lower edges of the faceplate. Peform this action to make sure the card is fully seated in the shelf.
Page 200 6-48 RSC-M card replacement procedures NTMX74 in an RSC-M (continued) and press the Enter key. where unit_no is the number of the inactive RCO2 unit zero or one If the PMRESET command passes step 16 fails step 15 To reload the inactive RCO2 unit, type: >LOADPM UNIT unit_no and press the Enter key.
Page 201 RSC-M card replacement procedures 6-49 NTMX74 in an RSC-M (end) The procedure is complete. Return to the maintenance procedure that directed you to this card replacement procedure. Continue as directed. DMS-100 Family Remote Switching Center Multi-Access Maintenance Manual XPM11 and up...
Page 202: Ntmx75 In An Rsc-M
6-50 RSC-M card replacement procedures NTMX75 in an RSC-M Application Use this procedure to replace an NTMX75 circuit card in a Remote Switching Center Multi-access (RSC-M) main shelf. Note: In this section RSC-M is referred to as RCO2 in the examples. When software outputs messages to the MAP terminal, the software does not differentiate between the two types of RCO2.
Page 203 RSC-M card replacement procedures 6-51 NTMX75 in an RSC-M (continued) Summary of replacing an NTMX75 in an RSC-M This procedure contains a Post RSC-M summary flowchart and a list of and make unit steps. Use the flowchart to inactive review the procedure. Follow the steps to perform the procedure.
Page 204 6-52 RSC-M card replacement procedures NTMX75 in an RSC-M (continued) Replacing an NTMX75 in an RSC-M At the MAP display Proceed if: • a step in a maintenance procedure directs you to this card replacement procedure • you use the procedure to verify or accept cards •...
Page 205 RSC-M card replacement procedures 6-53 NTMX75 in an RSC-M (continued) RCO2 SysB ManB OffL CBsy ISTb InSv 0 Quit 2 Post_ RCO2 3 ListSet RCO2 0 ISTb Links_OOS: CSide 1, PSide 5 TRNSL Unit0: Inact ISTb 6 TST Unit1: Act InSv 7 BSY 8 RTS 9 OffL...
Page 206 6-54 RSC-M card replacement procedures NTMX75 in an RSC-M (continued) RCO2 0 A Warm SwAct will be performed after data sync of active terminals. Please confirm (”YES”, ”Y”, ”NO”, or ”N”): the system prompts you to confirm a warm SWACT step 7 the system rejects the SWACT step 21...
Page 207 RSC-M card replacement procedures 6-55 NTMX75 in an RSC-M (continued) RCO2 0 ISTb Links_OOS: CSide 0 , PSide Unit0: Inact ManB Unit1: ISTb Bsy INACTIVE RCO2 0 Unit 0 Bsy Passed If the BSY command passes step 11 fails step 20 To reset the inactive RCO2 unit, type: >PMRESET UNIT unit_no NORUN and press the Enter key.
Page 208 6-56 RSC-M card replacement procedures NTMX75 in an RSC-M (end) a maintenance procedure does not direct you to this step 16 procedure Remove the sign from the active unit. Return to the maintenance procedure that sends you to this procedure. Continue as directed. At the MAP terminal To return the inactive unit to service, type: >RTS...
Page 209: Ntmx76 In An Rsc-M
RSC-M card replacement procedures 6-57 NTMX76 in an RSC-M Application Use this procedure to replace an NTMX76 circuit card in a Remote Switching Center Multi-access (RSC-M) main shelf. Note: In this section, RSC-M is referred to as RCO2 in the examples. When software outputs messages to the MAP terminal, the software does not differentiate between the two types of RCO2.
Page 210 6-58 RSC-M card replacement procedures NTMX76 in an RSC-M (continued) Summary of Replacing an NTMX76 in an RSC-M This procedure contains a Post RSC-M flowchart and a list of steps. and make unit Use the flowchart to review the inactive procedure.
Page 211 RSC-M card replacement procedures 6-59 NTMX76 in an RSC-M (continued) Replacing an NTMX76 in an RSC-M At the MAP display Proceed if: • a step in a maintenance procedure directs you to this card replacement procedure • you use the procedure to verify or accept cards •...
Page 212 6-60 RSC-M card replacement procedures NTMX76 in an RSC-M (continued) RCO2 SysB ManB OffL CBsy ISTb InSv 0 Quit 2 Post_ RCO2 3 ListSet RCO2 0 ISTb Links_OOS: CSide 1, PSide 5 TRNSL Unit0: Inact ISTb 6 TST Unit1: Act InSv 7 BSY 8 RTS 9 OffL...
Page 213 RSC-M card replacement procedures 6-61 NTMX76 in an RSC-M (continued) RCO2 0 A Warm SwAct will be performed after data sync of active terminals. Please confirm (”YES”, ”Y”, ”NO”, or ”N”): the system prompts you to confirm a warm SWACT step 7 the system rejects the SWACT step 21...
Page 214 6-62 RSC-M card replacement procedures NTMX76 in an RSC-M (continued) RCO2 0 ISTb Links_OOS: CSide 0 , PSide Unit0: Inact ManB Unit1: ISTb Bsy INACTIVE RCO2 0 Unit 0 Bsy Passed If the BSY command passes step 11 fails step 20 To reset the inactive RCO2 unit, type: >PMRESET UNIT...
Page 215 RSC-M card replacement procedures 6-63 NTMX76 in an RSC-M (end) unit_no is the number of the RCO2 unit busied in step 10 If PMRESET passes step 15 fails step 20 Use the following information to determine the next step in this procedure. If you enter this procedure from alarm clearing procedures step 19...
Page 216: Ntmx77 In An Rsc-M
6-64 RSC-M card replacement procedures NTMX77 in an RSC-M Application Use this procedure to replace an NTMX77 circuit card in a Remote Switching Center Multi-access (RSC-M) main shelf. Note: In this section, RSC-M is known as RCO2 in the examples. When software outputs messages to the MAP terminal, software does not differ between the two RCO2 types.
Page 217 RSC-M card replacement procedures 6-65 NTMX77 in an RSC-M (continued) Summary of replacing an NTMX77 in an RSC-M This flowchart summarizes the procedure. Locate faulty NTMX77 card Use the instructions that follow this flowchart to perform the procedure. Verify card is from inactive unit Place sign on active unit...
Page 218 6-66 RSC-M card replacement procedures NTMX77 in an RSC-M (continued) To replace an NTMX77 in an RSC-M At the MAP display Proceed only if one of the following conditions apply. The maintenance support group or a step in a maintenance procedure directs you to this card replacement procedure.
Page 219 RSC-M card replacement procedures 6-67 NTMX77 in an RSC-M (continued) To determine the location of the RCO2 that contains the circuit card that you replace, type >QUERYPM and press the Enter key. Example of a MAP response: PM Type: RCO2 PM No.: 0 PM Int. No.: 9 Node_No: 24 PMs Equipped:53 Loadname: KRI07BI1 EEPRom Load:MX77NG03 WARM SWACT is supported and available RCO2 0 is included in the REX schedule.
Page 220 6-68 RSC-M card replacement procedures NTMX77 in an RSC-M (continued) Example of a MAP response: Unit0: Inact SysB Mtce Unit1: ISTb RCO2 0 SwAct Passed If the MAP response is SWACT passed step 8 is other than listed here step 23 A maintenance ﬂag (Mtce) can appear.
Page 221 RSC-M card replacement procedures 6-69 NTMX77 in an RSC-M (continued) At the shelf WARNING Static electricity damage Wear a wrist strap that connects to the wrist-strap grounding point of the modular supervisory panel (MSP) to handle circuit cards. The wrist-strap protects the cards against static electricity damage.
Page 222 6-70 RSC-M card replacement procedures NTMX77 in an RSC-M (end) and press the Enter key. If the RTS command passed step 20 failed step 23 Remove the sign from the active unit. Go to the common “Returning a card” procedure in this document. This procedure is complete.
Page 223: Ntmx79 In An Rsc-M
RSC-M card replacement procedures 6-71 NTMX79 in an RSC-M Application Use this procedure to replace an NTMX79 circuit card in a Remote Switching Center Multi-access (RSC-M) extension (EXT) shelf. Note: In this section, RSC-M is known as RCO2 in the examples. When software outputs messages to the MAP terminal, software does not differ between the two RC0o2 types.
Page 224 6-72 RSC-M card replacement procedures NTMX79 in an RSC-M (continued) Summary of replacing an NTMX79 in an RSC-M This flowchart summarizes the procedure. Use the instructions that follow this Locate flowchart to perform the procedure. faulty card Verify card is linked to the inactive unit Manually...
Page 225 RSC-M card replacement procedures 6-73 NTMX79 in an RSC-M (continued) To replace an NTMX79 in an RSC-M At the MAP display Proceed only if one of the following conditions applies. The maintenance support group or a step in a maintenance procedure directs you to this card replacement procedure.
Page 226 6-74 RSC-M card replacement procedures NTMX79 in an RSC-M (continued) To determine the location of the RCO2 extension half shelf (left or right) that contains the circuit card to replace, type >QUERYPM and press the Enter key. Example of a MAP response: PM Type: RCO2 PM No.: 0 PM Int.
Page 227 RSC-M card replacement procedures 6-75 NTMX79 in an RSC-M (continued) Example of a MAP response: Unit0: Inact SysB Mtce Unit1: ISTb RCO2 0 SwAct Passed If the MAP response is SWACT passed step 8 is other than listed here step 24 A maintenance ﬂag (Mtce) can appear.
Page 228 6-76 RSC-M card replacement procedures NTMX79 in an RSC-M (end) Make sure that insertion of the NTMX79 circuit card is correct.. Set the POWER switch to the ON position. To determine the circuit breaker that controls the NTMX79 circuit card that you replace, observe the MSP.
Page 229: Ntmx82 In An Rsc-M
RSC-M card replacement procedures 6-77 NTMX82 in an RSC-M Application Use this procedure to replace an NTMX82 circuit card in a Remote Switching Center Multi-access (RSC-M) main or extension (EXT) shelf. Note: In this section, the examples refer to RSC-M as RCO2. When software outputs messages to the MAP terminal, the software does not differentiate between the two types of RCO2.
Page 230 6-78 RSC-M card replacement procedures NTMX82 in an RSC-M (continued) Summary of replacing an NTMX82 in an RSC-M This flowchart summarizes the Determine card procedure. location and defective C-side Use the instructions in the or P-links procedure that follows this flowchart to perform the procedure.
Page 231 RSC-M card replacement procedures 6-79 NTMX82 in an RSC-M (continued) Replacing an NTMX82 in an RSC-M At the MAP display Proceed to step 2 if one of the following conditions applies: • another maintenance procedure directed you to this card replacement procedure •...
Page 232 6-80 RSC-M card replacement procedures NTMX82 in an RSC-M (continued) RCO2 SysB ManB OffL CBsy ISTb InSv 0 Quit 2 Post_ RCO2 3 ListSet RCO2 0 ISTb Links_OOS: CSide 1, PSide 5 TRNSL Unit0: Inact ISTb 6 TST Unit1: Act InSv 7 BSY 8 RTS 9 OffL...
Page 233 RSC-M card replacement procedures 6-81 NTMX82 in an RSC-M (continued) If C-side links are not defective step 6 To display the peripheral-side (P-side) links that associate with the NTMX82 circuit card, type >TRNSL P and press the Enter key. Example of a MAP response Link REM1 11 0 0;Cap MS;Status:OK...
Page 234 6-82 RSC-M card replacement procedures NTMX82 in an RSC-M (continued) RCO2 P-side link connections (Sheet 2 of 2) Links for Links for Links for Links for MX87 MX82 MX82 MX82 MX82 Card Location Slot No. Card 0 Card 1 Card 2 Card 3 32, 33 34, 35...
Page 235 RSC-M card replacement procedures 6-83 NTMX82 in an RSC-M (continued) Trks Appl 1RCO2 PLGC SysB ManB OffL CBsy ISTb InSv 0 Quit 2 Post_ PLGC 3 ListSet PLGC 1 ISTb Links_OOS: CSide 0, PSide 5 Trnsl_ Unit0: Act InSv 6 Tst_ Unit1: Inact InSv 7 Bsy_...
Page 236 6-84 RSC-M card replacement procedures NTMX82 in an RSC-M (continued) RCO2 C-side link connections C-side Slot 9 Slot 19 NTMX82 packlets NTMX82 packlet slot number in the NTMX87 card in the specified card slots NTMX87 card Record the RCO2 number, shelf location, slot number, and numbers of the associated links for the circuit card you want to replace.
Page 237 RSC-M card replacement procedures 6-85 NTMX82 in an RSC-M (continued) At the cabinet WARNING Static electricity damage Wear a wrist strap that connects to the wrist strap grounding point on the left side of the modular supervisory panel (MSP) of the RCO2. The wrist strap protects the equipment against static electricity damage.
Page 238 6-86 RSC-M card replacement procedures NTMX82 in an RSC-M (continued) NTMX82 switch settings (Sheet 2 of 2) Port Impedance Output Odd port 75 OHM Switch S1 pos 1, 2, 3, and 4 ON , pos 5 and 6 OFF Odd port 120 OHM Switch S1 pos 1 and 5 ON,...
Page 239 RSC-M card replacement procedures 6-87 NTMX82 in an RSC-M (end) link_no is the number of the link ManB in step 11 Note 1: Perform this step for each link ManB. Note 2: To test the other links that associate with the RCO2, execute the procedures in this step.
Page 240: Ntmx87 In An Rsc-M
6-88 RSC-M card replacement procedures NTMX87 in an RSC-M Application Use this procedure to replace an NTMX87 circuit card in a Remote Switching Center Multi-access (RSC-M) main or extension (EXT) shelf. Note: In this section this manual refers to RSC-M as RCO2 in the examples.
Page 241 RSC-M card replacement procedures 6-89 NTMX87 in an RSC-M (continued) Summary of replacing an NTMX87 in an RSC-M This flowchart summarizes the Determine card procedure. location and faulty C-side or Use the instructions in the P-links procedure that follows this flowchart to perform the procedure.
Page 242 6-90 RSC-M card replacement procedures NTMX87 in an RSC-M (continued) Replacing an NTMX87 in an RSC-M At the MAP display Proceed only under the following conditions: • a step in a maintenance procedure directed you to this card replacement procedure •...
Page 243 RSC-M card replacement procedures 6-91 NTMX87 in an RSC-M (continued) RCO2 SysB ManB OffL CBsy ISTb InSv 0 Quit 2 Post_ RCO2 3 ListSet RCO2 0 ISTb Links_OOS: CSide 1, PSide 5 TRNSL Unit0: Inact ISTb 6 TST Unit1: Act InSv 7 BSY 8 RTS 9 OffL...
Page 244 6-92 RSC-M card replacement procedures NTMX87 in an RSC-M (continued) If C-side links are not defective step 6 To display the peripheral-side (P-side) links associated with the NTMX87 circuit card, type >TRNSL P and press the Enter key. Example of a MAP response Link REM1 11 0 0;Cap MS;Status:OK...
Page 245 RSC-M card replacement procedures 6-93 NTMX87 in an RSC-M (continued) RCO2 P-side link connections (Sheet 2 of 2) Links for Links for Links for Links for MX87 MX82 MX82 MX82 MX82 Card Location Slot No. Card 0 Card 1 Card 2 Card 3 40, 41 42, 43...
Page 246 6-94 RSC-M card replacement procedures NTMX87 in an RSC-M (continued) Trks Appl 1RCO2 PLGC SysB ManB OffL CBsy ISTb InSv 0 Quit 2 Post_ PLGC 3 ListSet PLGC 1 ISTb Links_OOS: CSide 0, PSide 5 Trnsl_ Unit0: Act InSv 6 Tst_ Unit1: Inact InSv 7 Bsy_...
Page 247 RSC-M card replacement procedures 6-95 NTMX87 in an RSC-M (continued) RCO2 C-side link connections C-side Slot 9 Slot 19 NTMX82 packlets NTMX82 packlet slot number in the NTMX87 card located in the specified card slots NTMX87 card Record the RCO2 number, shelf location, slot number, and numbers of the associated links for the circuit card you replace.
Page 248 6-96 RSC-M card replacement procedures NTMX87 in an RSC-M (continued) At the cabinet WARNING Static electricity damage When you handle circuit cards, make sure wear a wrist strap that connects to the wrist strap grounding point. The grounding point is on the left side of the modular supervisory panel (MSP) of the RCO2.
Page 249 RSC-M card replacement procedures 6-97 NTMX87 in an RSC-M (continued) Before you insert the replacement NTMX82 circuit card, make sure the switch settings are identical to the switch settings on the circuit card you removed. The next table describes the PCM30 DIP switch settings on the NTMX82 circuit card.
Page 250 6-98 RSC-M card replacement procedures NTMX87 in an RSC-M (continued) NTMX82 switch settings (Sheet 2 of 2) Port Impedance Output Odd port 75 OHM Switch S1 pos 1, 2, 3, and 4 ON , pos 5 and 6 OFF Odd port 120 OHM Switch S1 pos 1 and 5 ON, pos 2, 3, 4, and...
Page 251 RSC-M card replacement procedures 6-99 NTMX87 in an RSC-M (end) link_no is the number of the link ManB in step 11 Note 1: Perform this step for each link ManB. Note 2: To test the other links associated with the RCO2, execute the procedures in this step for each link.
Page 252: Ntrx41 In An Rsc-M/Msp
6-100 RSC-M card replacement procedures NTRX41 in an RSC-M/MSP Application Use this procedure to replace an NTRX41 card in a modular supervisory panel (MSP) that supports a Remote Switching Center Multi-Access (RSC-M) cabinet. Note: In this section, examples refer to RSC-M as RCO2 . When software outputs messages to the MAP terminal, software does not differentiate between the two types of RCO2.
Page 253 RSC-M card replacement procedures 6-101 NTRX41 in an RSC-M/MSP (continued) Summary of Replacing an NTRX41 in an RSC-M/MSP This flowchart summarizes the procedure. Use the instructions that follow this flowchart to perform the procedure. Locate defective card Remove and replace defective card Card Return to...
Page 254 6-102 RSC-M card replacement procedures NTRX41 in an RSC-M/MSP (continued) Replacing an NTRX41 in an RSC-M/MSP At the MAP display: Proceed if the next level of support or a step in a maintenance procedure directed you to this card replacement procedure. Use this procedure to verify or accept cards.
Page 255 RSC-M card replacement procedures 6-103 NTRX41 in an RSC-M/MSP (continued) DANGER Risk of injury from high energy levels, equipment damage Take these precautions when you remove or insert a card: 1. Do not apply direct pressure to the components. 2. Do not force the cards in the slots. Wear a wrist strap.
Page 256 6-104 RSC-M card replacement procedures NTRX41 in an RSC-M/MSP (end) Push in lever on the upper left side of alarm module. Tighten the knurled thumbscrew at the top of the circuit card. If the alarm light remains off (or light for a short step 7 time) turns on...
Page 257 RSC-M card replacement procedures 6-105 NTRX42 in an RSC-M/MSP Application Use this procedure to replace an NTRX42 card in a modular supervisory panel (MSP) that supports a Remote Switching Center Multi-access (RSC-M) cabinet. Note: In this section, RCO2 in the examples refers to RSC-M. When software outputs messages to the MAP terminal, software does not differentiate between the two types of RCO2.
Page 258 6-106 RSC-M card replacement procedures NTRX42 in an RSC-M/MSP (continued) angles. You can require the use of these angles because of limited access to the connectors. Connector removal tool FW-31325 PO746192 This procedure contains a summary ﬂowchart and a list of steps. Use the ﬂowchart to review the procedure.
Page 259 RSC-M card replacement procedures 6-107 NTRX42 in an RSC-M/MSP (continued) Summary of replacing an NTRX42 in an RSC-M/MSP This flowchart summarizes the Identify shelves procedure. that this CB serves Use the instructions that follow this flowchart to perform the procedure. Post the served units Manually busy...
Page 260: Ntrx42 In An Rsc-M/Msp
6-108 RSC-M card replacement procedures NTRX42 in an RSC-M/MSP (continued) Replacing an NTRX42 in an RSC-M/MSP At the MAP terminal Proceed only if one of the following conditions applies. Your maintenance support group or a step in a maintenance procedure directed you to this card replacement procedure.
Page 261 RSC-M card replacement procedures 6-109 NTRX42 in an RSC-M/MSP (continued) devices (or units). You must power down both units before removal of the associated NTRX42 circuit card. At the MAP terminal Set the MAP display to the peripheral module (PM) level. To post the RSC-M/RCO2 that the NTRX42 circuit breaker card powers, type >MAPCI;MTC;PM;POST RCO2 rco2_no and press the Enter key.
Page 262 6-110 RSC-M card replacement procedures NTRX42 in an RSC-M/MSP (continued) Use the following table to determine the RSCM PM units or EXT half shelves associated with the NTRX42 card that you replace. Note: You must busy all RCO2 units or EXT half shelves associated with the circuit breakers on the defective NTRX42 card before replacement.
Page 263 RSC-M card replacement procedures 6-111 NTRX42 in an RSC-M/MSP (continued) RCO2 0 A Warm SwAct will be performed after data sync of active terminals. Please confirm (”YES”, ”Y”, ”NO”, or ”N”): If the system prompts you to confirm a warm step 11 SWACT rejects the SWACT...
Page 264 6-112 RSC-M card replacement procedures NTRX42 in an RSC-M/MSP (continued) Repeat steps 9 to 12 until all units powered by the NTRX42 card are in the inactive state. Place a sign on the active units that bears the words Active unit-Do not touch .
Page 265 RSC-M card replacement procedures 6-113 NTRX42 in an RSC-M/MSP (continued) Note the wire color and the location to facilitate connection again. Safety tag the front of the circuit breaker to indicate maintenance activity. Use the connector removal tool to disconnect the power connectors to the circuit card manually.
Page 266 6-114 RSC-M card replacement procedures NTRX42 in an RSC-M/MSP (continued) NTRX42AA Replace any jumper connectors and cables removed in step 19. Insert the power connectors again at the rear of the circuit card. Apply the correct label from the spare parts on the replacement NTRX42 circuit breaker card.
Page 267 RSC-M card replacement procedures 6-115 NTRX42 in an RSC-M/MSP (continued) Switch on the associated power converter(s). Reset the circuit breakers to ON (up). Cards that this breaker controls can include a reset switch. If this condition applies, hold the RESET button up while you set the circuit breaker to the ON position.
Page 268 6-116 RSC-M card replacement procedures NTRX42 in an RSC-M/MSP (end) For additional help with switch of activity, contact the next level of support. Note: If the system recommends that you use the SWACT command with the FORCE option, consult ofﬁce personnel. Ofﬁce personnel can advise you to not use the FORCE option.
Page 269 RSC-M card replacement procedures 6-117 NTRX43 in an RSC-M/MSP Application Use this procedure to replace an NTRX43 card in a modular supervisory panel (MSP) that supports a Remote Switching Center Multi-access (RSC-M) cabinet. Suffixes Name NTRX43 Fuse module Common procedures The common returning a card procedure is referenced in this procedure.
Page 270 6-118 RSC-M card replacement procedures NTRX43 in an RSC-M/MSP (continued) Connector removal tool FW-31325 PO746192 This card replacement procedure contains a summary ﬂowchart and a list of steps. Use the ﬂowchart to review the procedure. Follow the steps to perform the procedure.
Page 271 RSC-M card replacement procedures 6-119 NTRX43 in an RSC-M/MSP (continued) Summary of Replacing an NTRX43 in an RSC-M/MSP This flowchart summarizes the procedure. Use the instructions that follow this flowchart to perform the procedure. Locate defective card Remove and replace defective card Card Return to...
Page 272: Ntrx43 In An Rsc-M/Msp
6-120 RSC-M card replacement procedures NTRX43 in an RSC-M/MSP (continued) Replacing an NTRX43 in an RSC-M/MSP At the MAP terminal Proceed if the maintenance support group or a step in a maintenance procedure directed you to this card replacement procedure. Use this procedure to verify or accept cards.
Page 273 RSC-M card replacement procedures 6-121 NTRX43 in an RSC-M/MSP (continued) WARNING Risk of injury from high energy levels, static electricity damage Wear a wrist strap connected to the wrist-strap grounding point on the left side of the modular supervisory panel (MSP) to remove cards.
Page 274 6-122 RSC-M card replacement procedures NTRX43 in an RSC-M/MSP (continued) At the rear panel of the cabinet DANGER Risk of injury from high energy levels, voltage present Do not insert metallic objects into the black connectors. Voltage is present and equipment damage can result. Remove the NTRX43 circuit card as appears in the following ﬁgures.
Page 275 RSC-M card replacement procedures 6-123 NTRX43 in an RSC-M/MSP (continued) At the front panel of the cabinet Remove the NTRX43 circuit card. Disengage the knurled thumbscrew at the top of the circuit card. Carefully pull the circuit card toward you until the circuit card clears the shelf.
Page 276 6-124 RSC-M card replacement procedures NTRX43 in an RSC-M/MSP (end) Install the jumper connectors and cables removed in step 7 on the replacement circuit card. At the front of the cabinet Replace the fuses removed in step 6. Power up the circuit breaker that supplies the fuse module. Remove the safety tag.
Page 277 RSC-M card replacement procedures 6-125 NTRX54 in an RSC-M/MSP Application Use this procedure to replace an NTRX54 card in a modular supervisory panel (MSP) that supports the RCO2 shelf in the Remote Switching Center Multi-access (RSC-M) cabinet. Suffixes Name NTRX54 Fan power control module Common procedures The common returning a card procedure is referenced in this procedure.
Page 278 6-126 RSC-M card replacement procedures NTRX54 in an RSC-M/MSP (continued) Connector removal tool FW-31325 PO746192 This card replacement procedure contains a summary ﬂowchart and a list of steps. Use the ﬂowchart to review the procedure. Follow the steps to perform the procedure.
Page 279 RSC-M card replacement procedures 6-127 NTRX54 in an RSC-M/MSP (continued) Summary of Replacing an NTRX54 in an RSC-M/MSP This flowchart summarizes the procedure. Use the instructions that follow this flowchart to perform the procedure. Locate defective card Remove and replace defective card Card Return to...
Page 280: Ntrx54 In An Rsc-M/Msp
6-128 RSC-M card replacement procedures NTRX54 in an RSC-M/MSP (continued) Replacing a/an NTRX54 card in an RSC-M/MSP At the MAP terminal Proceed if your maintenance support group or a step in a maintenance procedure directed you to this card replacement procedure. Use the procedure to verify or accept cards.
Page 281 RSC-M card replacement procedures 6-129 NTRX54 in an RSC-M/MSP (continued) DANGER Risk of injury from high energy levels, equipment damage Take these precautions when you remove or insert a card: 1. Do not apply direct pressure to the components. 2. Do not force the cards in the slots. DANGER Heat damage Do not leave this card out of service for more than 30 min.
Page 282 6-130 RSC-M card replacement procedures NTRX54 in an RSC-M/MSP (continued) power connector. Disconnect the smaller black power connectors located above the large blue power connector. Make sure you disconnect the black connectors before you remove the circuit card. The connectors have voltage present. The connectors are insulated. Secure the connectors to the power-connector bundle with a line-tie until the time arrives to connect the connectors again.
Page 283 RSC-M card replacement procedures 6-131 NTRX54 in an RSC-M/MSP (end) At the rear panel of the cabinet Locate the replaced circuit card. Attach the power connectors. Step 6 describes how to attach the power connectors. NTRX54BA Access Plate Replace the two fuses removed in step 5. Send defective cards for repair according to local procedure.
Page 284: Returning A Card For Repair Or Replacement In An Rsc-M/Rco2
6-132 RSC-M card replacement procedures Returning a card for repair or replacement in an RSC-M/RCO2 Application Use this procedure to return a circuit card, like a power converter, for repair or replacement. Your location determines the documents you must ﬁll out and the address where you return the circuit card.
Page 285 RSC-M card replacement procedures 6-133 Returning a card for repair or replacement in an RSC-M/RCO2 (continued) Summary of Returning a card for repair or replacement in an RSC-M/RCO2 This flowchart summarizes the procedure. Place card in Use the instructions that follow ESD protective this flowchart to perform the procedure.
Page 286 Keep the other copies of the tag for your records. Pack the circuit card or assembly in a Northern Telecom (Nortel) shipping carton and seal the card or assembly. If a Nortel shipping carton is not available, use another carton. Make sure that you: •...
Page 287: Locating And Clearing Rsc-M Trouble
7 Locating and clearing RSC-M trouble This section to locate and clear problems contains the following information: • Locating and correcting problems • Problem solving chart • Advanced procedures to solve problems This 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 of the Remote Switching Center Multiple-access (RSC-M).
Page 289: Rsc-M Trouble Isolation And Correction
8 RSC-M trouble isolation and correction Troubleshooting the RSC-M This section includes descriptions of faults, test conﬁgurations, and test tools. These descriptions are for Remote Switching Center Multi-access (RSC-M) trouble isolation and correction. In this document MAP displays can indicate an RSC-M is an RCO2.
Page 290 8-2 RSC-M trouble isolation and correction Alarms Audible and visual alarms indicate that corrective action is required. The level of the alarm indicates alarm severity and emergency of corrective action. Alarm severity and emergency appears as minor, major, or critical. A description of the alarm conditions appears in the following table.
Page 291: Locating And Clearing Faults
RSC-M trouble isolation and correction 8-3 Table 8-1 Assessing PM alarms from the MAP display (Sheet 2 of 2) MTC level PM level Possible scenarios PM RCO2 SysB 1 Both units are SysB. If the cause of this state is communication with the host, the RSC-M enters emergency stand-alone (ESA).
Page 292: Fault Isolation Program
8-4 RSC-M trouble isolation and correction 3. Busy the hardware to remove system access to the component with faults. This action allows you to perform maintenance activity without interference from the system. 4. Test the component with faults, and identify the card you must replace. Replace the damaged card, and test the component again.
Page 293: User Interface For The Rsc-M At The Pm Level Of The Map Display
RSC-M trouble isolation and correction 8-5 User interface for the RSC-M at the PM level of the MAP display The RSC-M integrates in to the peripheral module (PM) level MAP display. A list of the PM states that apply to to an RSC-M appears in the next table. Table 8-2 Overview of RSC-M states RSC-M state Code...
Page 294 8-6 RSC-M trouble isolation and correction Figure 8-1 Posting a RSC-M at the PM level of the MAP display Trks Appl RCO2 ISTb SysB ManB Offl CBsy InSv Quit Post_ RCO2 ListSet RCO2 0 InSv Links_OOS: CSide PSide Trnsl_ Tst_ Unit 0: InSv Bsy_...
Page 295 RSC-M trouble isolation and correction 8-7 Table 8-3 Overview of RSC-M/RC02 commands at the PM level (Sheet 2 of 2) Command Function Description LOADPM Load PM Loads software and data in one unit or both units of a posted RSC-M or the CMR circuit card. NEXT Next Posts the RSC-M that follows in a displayed set.
Page 296 8-8 RSC-M trouble isolation and correction A Warm SWACT will be performed after data sync of active terminals. Please confirm (“YES”,“Y”, or “NO”, “N”): Examples of the DISP command The DISP command contains two options, STATE and DIAGHIST. Use the STATE option with a speciﬁed state of the RSC-M to request the system lists all RSC-Ms in the speciﬁed state.
Page 297 RSC-M trouble isolation and correction 8-9 Diagnostic History for ECAP05. Report generated 95/09/07 THU at 08:43:55 RCO2 0 Long–term Failure (LTF) last reset: 95/09/05 19:05:01 UNIT 0 Short–Term Failure (STF) last reset 95/09/06 10:29 No failures recorded UNIT 1 Short–Term Failure (STF) last reset 95/09/06 10:29 No failures recorded RCO2 1 Long–term Failure (LTF) last reset: 95/09/05 19:05:01 UNIT 0 Short–Term Failure (STF) last reset 95/09/06 10:29...
Page 298 8-10 RSC-M trouble isolation and correction — SysB — Ofﬂ • condition of the message link, which can be one of the following: — OPN — CLS — MTC An example of a MAP display for the TRNSL P command appears in the following ﬁgure.
Page 299 RSC-M trouble isolation and correction 8-11 Figure 8-3 Example TRNSL C display for the RSC-M Trks Appl RCO2 SysB ManB Offl CBsy ISTb InSv Quit Post_ RCO2 Listset ISTb LINKS_OOS: RCO2 CSide 0 PSide 1 Unit0: InSv Trnsl_ Unit1: InAct ISTb Tst_ Bsy_ Trnsl...
Page 300: User Interface For External Alarms
8-12 RSC-M trouble isolation and correction Figure 8-4 Example QUERYPM display for the RSC-M Trks Appl SysB ManB Offl CBsy ISTb InSv RCO2 Quit RCO2 Post_ Listset ISTb LINKS_OOS: RCO2 CSide 0 PSide 1 Unit0: InSv Trnsl_ Unit1: InAct InSv Tst_ Bsy_ PM Type: RCO2 PM No.: 0 PM Int.
Page 301 RSC-M trouble isolation and correction 8-13 Figure 8-5 Example carrier POST display Trks Appl POST Quit_ CLASS ALARM SYSB MANB UNEQ OFFL CBSY PBSY INSV TRUNKS Post_ REMOTE TIMING PROTLN Loop_ Tst_ Bsy_ RTS_ N CLASS SITE RCO2 CKT D ALRM SLIP FRME BER ES SES STATE Offl_ 0 REMOTE RMO2 0 1.0 2...
Page 302 8-14 RSC-M trouble isolation and correction pattern for a speciﬁed period of time. The known bit pattern transmits back to the IBERT. The IBERT command compares this pattern to the bit pattern sent. There are two forms of RSC-M BERP testing: RSC-M C-side link testing and RSC-M P-side link testing.
Page 303: Fault Isolation Tests
RSC-M trouble isolation and correction 8-15 Fault isolation tests When the system detects a fault condition in the RSC-M, you must perform maintenance action. The fault can occur in any RSC-M component. Operating company personnel use fault isolation procedures to determine which component caused the fault.
Page 304: Handling An Istb Rsc-M Unit
8-16 RSC-M trouble isolation and correction The test can fail. A message, like No Reply From PM, can accompany the failure. Use the PMRESET command to reset the RSC-M. This action can clear the fault. If the reset fails, a list of suspected damaged circuit cards can accompany the failure.
Page 305 RSC-M trouble isolation and correction 8-17 company personnel enter the QUERYPM FLT command, the response includes the following statement: NON-CRITICAL HARDWARE FAULT Operating company personnel must perform the following steps: 1. Test both units to conﬁrm the audit result. 2. Bsy the inactive unit, set the unit to Ofﬂ, and replace the defective circuit cards listed.
Page 306 8-18 RSC-M trouble isolation and correction reports the fault. The state of the unit can be active or inactive. The same CM handles all three types of faults. When the CM detects a parity fault in the active unit of the XPM, the CM sets the unit ISTb with a reason of parity.
Page 307 RSC-M trouble isolation and correction 8-19 Hard parity fault When the active unit of the XPM reports a hard parity fault to the CM, the CM generates a PM181 information log. This log notiﬁes operating company personnel of the following events: •...
Page 308: Diagnostic Tests
8-20 RSC-M trouble isolation and correction CM action: The CM must SWACT and reload the XPM during the next XPM REX test window. The reload clears the XPM of this ISTb fault. User action: No action is required by operating company personnel. You can start a manual SWACT and reload to clear the parity fault.
Page 309 RSC-M trouble isolation and correction 8-21 Diagnostic history is not supported for this PM type. If peripherals are not present on the requested PM, the following message appears: None. The following is an example of the DISP command that uses the DIAGHIST option with a selected PM.
Page 310 8-22 RSC-M trouble isolation and correction of long term failure counters is allowed from this level. The last diagnostic failure time is the time of the last diagnostic failure that occurred on the unit. The command string QUERYPM DIAGHIST provides a summary of diagnostic failures and cards reported as hardware faults.
Page 311 RSC-M trouble isolation and correction 8-23 RCO2 0 Long–Term Failure (LTF) last reset: 95/03/24 08:44:53 UNIT 0 Short–Term Failure (STF) last reset: 95/03/29 12:28:23 Last diagnostic failure: 95/03/29 12:47:55 DIAGLIST CARDLIST CPM AUD: Total failures :NTMX79 :NTMX77 FAC AUD: Total failures :NTMX79 EXTDIAG: Total failures :NTMX79...
Page 312 8-24 RSC-M trouble isolation and correction RCO2 0 Long–Term Failure (LTF) last reset: 95/03/24 08:44:53 UNIT 0 Short–Term Failure (STF) last reset: 95/03/29 12:28:23 Last diagnostic failure: 95/03/29 12:47:55 DIAGLIST CPM AUDI FAC AUD EXTDIAG UNIT 1 Short–Term Failure (STF) last reset: 95/03/28 16:12:15 Last diagnostic failure: 95/03/28 15:41:45 DIAGLIST...
Page 313 RSC-M trouble isolation and correction 8-25 SWACT controller This feature provides short term diagnostic performance data to the SWACT controller. A set of query procedures appear for applications that require this information. The SWACT controller determines if a SWACT is required. Short term data for a speciﬁed unit means diagnostic and audit failure counts measured from the last time a unit correctly gained activity.
Page 314 8-26 RSC-M trouble isolation and correction Diagnostics can be grouped together and run as a set of diagnostics or run as a single test. Common sets are: • in-service tests • out-of-service tests • facility audit tests • ROM diagnostics In-service and out-of-service tests In-service and out-of-service tests are solicited tests.
Page 315 RSC-M trouble isolation and correction 8-27 The following table lists the RSC-M cards that the XPM Diagnostic History feature supports. Table 8-5 Supported cards Card name Description NT6X78 CLASS Modem Resource (CMR) NT6X92 Universal Tone Receiver (UTR) NTMX75 Matrix card NTMX77 68020 Processor (UP) How the feature stores diagnostics...
Page 316: Rom Diagnostic
8-28 RSC-M trouble isolation and correction Resets and time stamps The history database stores ﬁve time stamps for each peripheral: • for the node — the time when long term failure counters are last reset • for unit 0 — the time when short term failure counters for unit 0 are last reset —...
Page 317: Matrix Card Diagnostic
RSC-M trouble isolation and correction 8-29 Matrix card diagnostic The matrix circuit card diagnostic tests the occurrence and functionality of components on the NTMX75 circuit card. This card diagnostic includes the following diagnostics: • matrix card occurrence test - makes sure the basic hardware is available. •...
Page 318: Message Diagnostic
8-30 RSC-M trouble isolation and correction The following is a list of PLL components tested: • phase comparator • gate • frame pulse indicator • frame pulse generator The following is a list of the problems detected: • Phase comparator value cannot be reset or read correctly. •...
Page 319: Speech Path Diagnostic
RSC-M trouble isolation and correction 8-31 Speech path diagnostic The speech path diagnostic runs a complete check on all the XPM speech channels for data integrity. This diagnostic checks all C-side and P-side loop-arounds and all time slots of the speech bus. The diagnostic tests highway mux and the PCM enable-disable gates.
Page 320 8-32 RSC-M trouble isolation and correction The CMR audit runs this audit at regular intervals. The facility audit that the diagnostic normally uses for this purpose has a repetition time of 7.5 min. This time is too low to provide adequate detection time for the NT6X78 circuit card. A new audit was added for this feature.
Page 321: Rsc Problem Solving Chart
9 RSC problem solving chart The following problem solving chart provides operating company personnel with easy access to troubleshooting procedures for Remote switching Center Multiple-access (RSC-M) alarms. DMS-100 Family Remote Switching Center Multi-Access Maintenance Manual XPM11 and up...
Page 322 9-2 RSC problem solving chart Table 9-1 RSC-M alarm clearing (Sheet 1 of 3) Alarm condition Possible cause Action RCO2 Critical Power problems caused both Proceed as follows: units to be out of service 1. Verify the RSC-M powers up. (OOS).
Page 323 RSC problem solving chart 9-3 Table 9-1 RSC-M alarm clearing (Sheet 2 of 3) Alarm condition Possible cause Action RCO2 Major Defective card caused one Proceed as follows: unit to be OOS. 1. Identify the system busy (SysB) RSC-M unit. 2.
Page 324 Table 9-1 RSC-M alarm clearing (Sheet 3 of 3) Alarm condition Possible cause Action The P-side links OOS caused Proceed as follows: some degradation of service. 1. Display P-side links at the MAP terminal. 2. Bsy and test SysB links. 3.
Page 325: Rsc-M Advanced Troubleshooting Procedures
10-1 10 RSC-M advanced troubleshooting procedures Perform the following steps to power-up the Remote Switching Center Multi-access (RSC-M). Powering up the RSC-M The RSC-M is part of the host ofﬁce. Use the general host ofﬁce powering-up procedure to power-up the RSC-M. At the RSC-M: Set the switch on the power converter for unit 0 to the ON position.
Page 326: Powering Down The Rsc-M
10-2 RSC-M advanced troubleshooting procedures To load the RSC-M, type: >LOADPM PM If the LOADPM PM fails because of Loadﬁle not found, return to step Section 7, "To access the disk utility program and list the ﬁles the disk volume contains, type:"...
Page 327: 11 Rsc-M Recovery Procedures
11-1 11 RSC-M recovery procedures This section describes recovery procedures for the Remote Switching Centre Multi-access (RSC-M). These procedures describe how to recover an RSCM/RCO2 manually. Maintenance engineering and ﬁeld maintenance personnel use these procedures. DMS-100 Family Remote Switching Center Multi-Access Maintenance Manual XPM11 and up...
Page 328: Recovering An Out-Of-Service Rsc-M/Rco2
11-2 RSC-M recovery procedures Recovering an out-of-service RSC-M/RCO2 Application Use this procedure to return to service (RTS) an RSC-M/RCO2 busied by the system (SysB). Action This procedure contains a summary ﬂowchart and a list of steps. Use the ﬂowchart to review the procedure. Follow the steps to perform the procedure. Note: In this section RSC-M/RCO2 refers to RCO2.
Page 329 RSC-M recovery procedures 11-3 Recovering an out-of-service RSC-M/RCO2 (continued) Summary of Recovering an out-of-service RSC-M/RCO2 This flowchart summarizes the procedure. Use the instructions that follow this flowchart to perform the Access PM procedure. level and silence alarm Use RECOVER More than Post set of command with one RCO2 to...
Page 330 11-4 RSC-M recovery procedures Recovering an out-of-service RSC-M/RCO2 (continued) Summary of Recovering an out-of-service RSC-M/RCO2 Query for system busy reasons Busy the SysB PM or unit Is system Display C-side Is status of busy reason links links OK? C-side links? Is system Contact network busy reason...
Page 331 RSC-M recovery procedures 11-5 Recovering an out-of-service RSC-M/RCO2 (continued) Summary of Recovering an out-of-service RSC-M/RCO2 Did unit Reset the unit initialize? Load Load the unit passes? Replace Does card list defective cards display? Is GET ON Contact next FILE FAILED level of support displayed? Contact next...
Page 332 11-6 RSC-M recovery procedures Recovering an out-of-service RSC-M/RCO2 (continued) Summary of Recovering an out-of-service RSC-M/RCO2 Return unit to Return to service service passes? Load Load PM passes? Contact next level of support 297-8223-550 Standard 04.02 November 2000...
Page 333 RSC-M recovery procedures 11-7 Recovering an out-of-service RSC-M/RCO2 (continued) To recover an out of service RSC-M/RCO2 At the MAP display When the system detects a fault, the system can trigger an audible alarm. To access the peripheral module (PM) level of the MAP display and silence the alarm, type >MAPCI;MTC;PM;SIL and press the Enter key.
Page 334 11-8 RSC-M recovery procedures Recovering an out-of-service RSC-M/RCO2 (continued) Go to step 7. To access the SysB RCO2, type >POST RCO2 rco2_no and press the Enter key. where rco2_no is the number of the RCO2 displayed in step 2 Example of a MAP response: RCO2 SysB ManB...
Page 335 RSC-M recovery procedures 11-9 Recovering an out-of-service RSC-M/RCO2 (continued) • RCO2 2 did not load unit 0 • the RCO2 2 does load unit 1, and RTS unit 1 • the RCO2 3 did not load Example of a MAP response: RCO2 1 Recover passed RCO2 0 Unit 0 LoadPM passed...
Page 336 11-10 RSC-M recovery procedures Recovering an out-of-service RSC-M/RCO2 (continued) If one or more RCO2 cannot be loaded step 34 or RTS To post the SysB RCO2, type >POST RCO2 rco2_no and press the Enter key. where rco2_no is the number of a RCO2 recorded in step 9 To busy the SysB RCO2, type >BSY PM and press the Enter key.
Page 337 RSC-M recovery procedures 11-11 Recovering an out-of-service RSC-M/RCO2 (continued) If the error reason is diagnostics failed step 17 is PM audit step 17 is self test failed step 17 is trap step 17 is unsol exceeded step 17 is reset step 22 is C-Side links step 30...
Page 338 11-12 RSC-M recovery procedures Recovering an out-of-service RSC-M/RCO2 (continued) To load unit again, type >LOADPM UNIT unit_no CC FORCE and press the Enter key. where unit_no is the number of the unit that did not RTS in step 18 If the LOADPM passes step 18 fails...
Page 339 RSC-M recovery procedures 11-13 Recovering an out-of-service RSC-M/RCO2 (continued) RESET STATUS INITIALIZE LOADING DATA If the unit did not initialize step 23 initialized step 27 Determine if the NO REPLY FROM PM message appears. If the message appears step 35 does not appear step 24 Determine if the NO WAI AFTER RESET message appears.
Page 340 11-14 RSC-M recovery procedures Recovering an out-of-service RSC-M/RCO2 (continued) unit_no is the number of the unit to be loaded If the LOADPM passes step 18 fails step 28 Identify the failed load in step 27. If message displayed is NO WAI AFTER RESET step 25 is FAIL ROM DIAG step 25...
Page 341 RSC-M recovery procedures 11-15 Recovering an out-of-service RSC-M/RCO2 (end) all RCO2 PMs are recovered step 36 Go to the appropriate alarm clearing procedure in the Alarm Clearing Procedures section to determine how to continue. The PM recovery tool recovers one unit of a PM. This action can cause the system to raise a major alarm.
Page 343: Rsc-M Routine Maintenance Procedures
12-1 12 RSC-M routine maintenance procedures This chapter contains the routine maintenance procedures for the remote switching center multi-access (RSC-M) for international applications. These procedures describe preventive maintenance tasks. These procedures are for maintenance engineering and ﬁeld maintenance personnel. Maintenance engineering and ﬁeld maintenance personnel perform these maintenance tasks at scheduled intervals.
Page 344: Checking Torque On Grounding Bolts
12-2 RSC-M routine maintenance procedures Checking torque on grounding bolts Application Use this procedure to check the torque of grounding bolts. Interval Perform this procedure every month. Common procedures There are no common procedures. Action This procedure contains a summary ﬂowchart as an overview of the procedure. Follow the steps to perform this procedure.
Page 345 RSC-M routine maintenance procedures 12-3 Checking torque on grounding bolts (continued) Summary of checking torque on grounding bolts This flowchart summarizes the procedure. Use the instructions that follow this flowchart to perform the procedure. Locate correct torquing tool. Reference the correct torque value.
Page 346 12-4 RSC-M routine maintenance procedures Checking torque on grounding bolts (end) Checking torque on grounding bolts At your current location Locate the T9958 click-type preset torque wrench. Align the small fractions on the edge of the handle with the center of the main torque scale.
Page 347: Cooling Unit Replacement
RSC-M routine maintenance procedures 12-5 Cooling unit replacement Application Use this procedure to replace a defective cooling unit (NTRX91AA). Interval Perform this procedure when a cooling unit cannot operate. An illuminated fan fail indicator on the front of the modular supervisory panel (MSP) indicates a defective cooling unit.
Page 348 12-6 RSC-M routine maintenance procedures Cooling unit replacement (continued) Summary of cooling unit replacement This flowchart summarizes the procedure. Use the instructions that follow Turn off this flowchart to perform the cooling unit procedure. Remove cooling unit Install new cooling unit Turn on cooling unit End of procedure...
Page 349 RSC-M routine maintenance procedures 12-7 Cooling unit replacement (end) Cooling unit replacement At your current location DANGER To prevent overheating Do not leave the cooling unit fans off for longer than 30 min. To make sure the cooling unit fans are off, place the power switch on the cooling unit in the off position.
Page 350: Inspecting And Changing Bulbs
12-8 RSC-M routine maintenance procedures Inspecting and changing bulbs Application Use this procedure to inspect and replace defective fan fail, aisle end, and frame fail bulbs. Interval Perform this procedure one time each month. Common procedures There are no common procedures. Action This procedure contains a summary ﬂowchart and a list of steps.
Page 351 RSC-M routine maintenance procedures 12-9 Inspecting and changing bulbs (continued) Summary of Inspecting and changing bulbs This flowchart summarizes the procedure. Use the instructions that follow this flowchart to perform the Locate correct procedure. bulb location Power down the cooling unit Remove defective bulb Replace bulb...
Page 352 12-10 RSC-M routine maintenance procedures Inspecting and changing bulbs (continued) Inspecting and changing bulbs At your current location Use the following procedures to inspect the fan fail, aisle end, and frame fail bulbs. If bulbs are fan fail bulbs step 2 frame fail bulbs step 2 aisle end bulbs...
Page 353 Use the Card Replacement Procedures section in this document to replace the Alarm Module (NTRX41) circuit card. Return the NTRX41 circuit card to Northern Telecom (Nortel) for bulb replacement. Go to step 8. To power up the cooling unit, place the cooling unit power switch in the ON position.
Page 354: Inspecting Cooling Unit Filters
12-12 RSC-M routine maintenance procedures Inspecting cooling unit ﬁlters Application Use this procedure to inspect cooling unit ﬁlters. Interval Perform this procedure in two week intervals. 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 355 RSC-M routine maintenance procedures 12-13 Inspecting cooling unit filters (continued) Inspecting cooling unit ﬁlters This flowchart summarizes the procedure. Use the instructions that follow Turn off cooling this flowchart to perform the unit fans procedure. Slide out filter Inspect filter Replace or install filter again...
Page 356 12-14 RSC-M routine maintenance procedures Inspecting cooling unit filters (continued) Inspecting cooling unit ﬁlters At your current location DANGER To prevent overheating Do not leave the cooling unit fans off for more than 30 min. DANGER To prevent overheating Do not leave the cooling unit fans off for more than 30 min. To make sure the cooling unit fans are off, place the power switch on the cooling unit in the off position.
Page 357 RSC-M routine maintenance procedures 12-15 Inspecting cooling unit filters (end) If ﬁlter surfaces appear dirty step 4 clean step 5 Replace the ﬁlter with the same part number as the old unit. Go to step 6. Install the ﬁlter in the cabinet again. To power up the cooling unit, place the power switch on the cooling unit in the on position.
Page 358: Replacing Cooling Unit Filters
12-16 RSC-M routine maintenance procedures Replacing cooling unit ﬁlters Application Use this procedure to replace cooling unit ﬁlters. Interval Perform this procedure at intervals of three 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 359 RSC-M routine maintenance procedures 12-17 Replacing cooling unit filters (continued) Summary of Replacing cooling unit ﬁlters This flowchart summarizes the procedure. Turn off cooling unit fans Use the instructions that follow this flowchart to perform the procedure. Slide out filter Replace filter Turn on cooling unit fans...
Page 360 12-18 RSC-M routine maintenance procedures Replacing cooling unit filters (continued) Replacing cooling unit ﬁlters At your current location DANGER To prevent overheating Do not leave the cooling fans off for longer than 30 min. DANGER To prevent overheating Do not leave the cooling fans off for longer than 30 min. Make sure the cooling unit fans are off.
Page 361 RSC-M routine maintenance procedures 12-19 Replacing cooling unit filters (end) Replace the ﬁlter with the same part number as the part number of the old unit. To power up the cooling unit, place the power switch on the cooling unit in the on position.
Page 362: Testing Power Converter Voltages
12-20 RSC-M routine maintenance procedures Testing power converter voltages Application Use this procedure to test power converter voltages. Interval Perform this procedure in six month intervals. Common procedures Does not apply Action This procedure contains a summary ﬂowchart as an overview of the procedure. Follow the exact steps to perform this procedure.
Page 363 RSC-M routine maintenance procedures 12-21 Testing power converter voltages (continued) Summary of Testing power converter voltages This flowchart is a summary of the procedure. Use the flowchart to review the Obtain dc procedure. Follow the steps to voltmeter perform the procedure. Measure voltages at face plate test points...
Page 364 12-22 RSC-M routine maintenance procedures Testing power converter voltages (continued) Testing power converter voltages At your current location Obtain a dc voltmeter. Measure the voltage at the test points on the face plates of all power converters in the equipment cabinet. Note: This procedure applies to the NTMX72AA power converter.
Page 365 RSC-M routine maintenance procedures 12-23 Testing power converter voltages (end) The voltages must be within 2% of the nominal values printed on the faceplate. Compare the voltages measured in step 2 with the following acceptable voltage ranges: Test point voltage Acceptable range +12 V +11.76 V to + 12.24 V...
Page 366: Testing Wrist Strap Grounding Cords
12-24 RSC-M routine maintenance procedures Testing wrist strap grounding cords Application Use this procedure to verify that the level of resistance of wrist strap grounding cords is correct. The level must be low enough to allow static electricity to discharge from the body of the user. The level must be high enough to prevent electrocution.
Page 367 RSC-M routine maintenance procedures 12-25 Testing wrist strap grounding cords (continued) Summary of Testing wrist strap grounding cords This flowchart summarizes the procedure. Obtain ohmmeter Use the instructions that follow this flowchart to perform the procedure. Detach grounding cord from wrist strap Measure resistance between each end of ground...
Page 368 12-26 RSC-M routine maintenance procedures Testing wrist strap grounding cords (end) Testing wrist strap grounding cords At your current location Obtain an ohmmeter. Take the grounding cord off the wrist strap. Measure the resistance between opposite ends of the grounding cord with the ohmmeter.
Page 369 A- 1 Index J1 pin-outs table 2-10 2-12 alarm clearing output speciﬁcations Ext FSP table 2-10 MSP shelf major P1 pin-outs PM RCO2 table 2-12 Critical 5-10 P2 pin-outs major 5-22 table 2-12 minor 5-33 power requirements 2-13 alarm module bulbs description inspecting and changing...
Page 370 A-2 Index cooling unit ﬁlters tests 8-15 inspecting handling data mismatch 8-16 12-12 handling IMC link faults 8-16 handling ISTb 8-16 handling SysB 8-15 Diagnostic tests 8-20 fault locating and clearing CLASS modem resource (CMR) fuse module NT6X78 8-31 description matrix card (NTMX75) 8-29 J1 pin-outs...
Page 371 Index A- 3 hardware overview NT6X92 automatic maintenance card replacement procedures 2-59 6-19 overload NTMX72 2-66 REX illustration 2-61 card replacement procedures 6-26 REX testing 2-59 NTMX73 card replacment procedures 6-34 NTMX74 card replacement procedures Log reports 6-41 NTMX75 for troubleshooting card replacement procedures 6-50 NTMX76...
Page 372 A-4 Index minor clearing 5-33 Trouble locating and clearing power converter voltages Troubleshooting testing 12-20 trouble indicators recovery procedures wrist straps out of service 11-2 testing grounding cords 12-24 remote center offshore #2 (RCO2) emergency stand-alone operation 2-25 parity faults 2-48 Remote Switching Center-SONET (RSC-S) alarms...
Page 374 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. Nortel Networks, the Nortel Networks logo, the Globemark, How the World Shares Ideas, Uniﬁed Networks, DMS, DMS-100,...
Page 375 Publication number: 297-8223-550 Product release: XPM11 and up Document release: Standard 04.02 Date: November 2000 Printed in the United States of America DMS-100 Family Remote Switching Center Multi-Access Maintenance Manual XPM11 and up...
Page 376 297-8223-550 Standard 04.02 November 2000...

Nortel DMS 100 Series Maintenance Manual

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PM Rsc-M/Rco2 Critical (Continued)

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