Nortel North American DMS-100 User manual

Critical Release Notice
Publication number: 297-8021-544
Publication release: Standard 16.02
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Publication History
November 2005
For the SN06 (DMS) standard release 16.02, the following updates were made:
Volume 1
Section “Clearing an SPM UR or a NA link state” added for CR Q01007141.
Volume 2
No changes
May 2003
For the SN06 (DMS) release, 16.01, updates were made to Volume 2 according to
CR Q00569522. There were no changes to Volume 1.

297-8021-544
DMS-100 Family
North American DMS-100
Trouble Locating and Clearing Procedures
Volume 2 of 2
LET0015 and up Standard 14.02 May 2001

DMS-100 Family
North American DMS-100
Trouble Locating and Clearing Procedures
Volume 2 of 2
Publication number: 297-8021-544
Product release: LET0015 and up
Document release: Standard 14.02
Date: May 2001
Copyright © 1996-2001 Nortel Networks,
All Rights Reserved
Printed in the United States of America
NORTEL NETWORKS CONFIDENTIAL: The information contained herein is the property of Nortel Networks and is
strictly confidential. Except as expressly authorized in writing by Nortel Networks, the holder shall keep all information contained
herein confidential, shall disclose the information only to its employees with a need to know, and shall protect the information, in
whole or in part, from disclosure and dissemination to third parties with the same degree of care it uses to protect its own
confidential information, but with no less than reasonable care. Except as expressly authorized in writing by Nortel Networks, the
holder is granted no rights to use the information contained herein.
Information is subject to change without notice. Nortel Networks reserves the right to make changes in design or components as
progress in engineering and manufacturing may warrant. Changes or modification to the DMS-100 without the express consent of
Nortel Networks may void its warranty and void the user’s authority to operate the equipment.
Nortel Networks, the Nortel Networks logo, the Globemark, How the World Shares Ideas, Unified Networks, DMS, DMS-100,
Helmsman, MAP, Meridian, Nortel, Northern Telecom, NT, SuperNode, and TOPS are trademarks of Nortel Networks.

DMS-100 Family NA100 Trouble Locating and Clearing Procedures Volume 2 of 2 LET0015 and up
iii
Contents
Trouble Locating and Clearing Procedures
Volume 2 of 2
NTP Summary Contents vii
1 Trouble locating and clearing procedures (continued) 1-1
Recovering a stuck HLIU or HSLR 1-2
Recovering a stuck two-slot LIU7 1-10
Removing an MP position from service (integrated) 1-18
Removing an MP position from service (standalone) 1-22
Removing a TOPS MPX terminal from service TOPS MPX 1-28
Repairing FAN faults on an LCEI frame; cooling unit replacement 1-36
Repairing an NTBX63AA cooling unit on the bench top 1-46
Repairing and replacing NT3X90AA cooling units 1-52
Repairing and replacing NT3X90AB cooling units 1-64
Repairing and replacing NT3X90AC cooling units 1-74
Replacing a 3.5 in. disk drive unit NTFX32BA 1-82
Replacing an 8-in. or a 5.25-in. disk drive unit 1-94
Replacing a 14-in. disk drive unit 1-111
Replacing a bulkhead gasket 1-130
Replacing a cooling unit assembly in a 42-in. cabinet CPC A0377580,
A0382102, A0383322, A0383323 1-133
Replacing a cooling unit electronic module CPC A0383326, A0383327,
A0383984 1-144
Replacing a cooling unit fan CPC A0345301 1-154
Replacing a cooling unit fan CPC A0381714, A0382103, A0383325 1-164
Replacing cooling unit NTRX91AA 1-174
Replacing a CU voltage limiter and filter in a 28-in. cabinet 1-177
Replacing a digital audio tape (DAT) drive NTFX32CA 1-182
Replacing a door gasket 1-191
Replacing a fan in a 28-in. cabinet 1-194
Replacing a fan in a 28-in. frame 1-200
Replacing a fan in a 42-in. cabinet 1-206
Replacing a line card 1-216
Replacing a missing line card 1-222
Replacing an NT9X95 card in a cooling unit 1-226
Replacing an NTFX39 bulkhead splitter unit 1-237
Replacing a point-of-use power supply card 1-248

iv Contents
297-8021-544 Standard 14.02 May 2001
Replacing a TOPS MPX terminal TOPS MPX 1-255
Reseating a line card 1-260
Responding to TRMS301 logs 1-266
Restoring far-end service for a D-channel ISDN PRI primary and backup
D-channels 1-269
Restoring far-end service for a D-channel ISDN PRI single
D-channel 1-274
Returning a busy D-channel to service ISDN PRI primary and backup
D-channels 1-278
Returning a busy D-channel to service ISDN PRI single D-channel 1-283
Returning a busy PRI trunk to service ISDN PRI trunk 1-287
Returning a card or assembly in Canada 1-292
Returning a card or assembly in Germany 1-296
Returning a card or assembly in Japan 1-299
Returning a card or assembly in the United States of America 1-303
Returning an LIM to service 1-307
Running a C7BERT 1-311
Running a C7BERT for high-speed links 1-343
Saving key, screen, status messages, command privileges and option
definitions 1-366
Scheduling an automatic REx test 1-370
Scheduling ISUP trunk audits 1-375
Setting up an ISUP per-call continuity test 1-379
Setting up the signaling link marginal performance report 1-383
Softkey information does not download to the ADSI set 1-394
Test the DS-1 carrier states 1-402
Testing an SPM carrier 1-406
Testing an SPM CEM 1-412
Testing an SPM DSP RM 1-416
Testing an SPM OC3 interface module 1-420
TOPS IWS Operator complaint Clearing database access trouble 1-425
TOPS MP Operator complaint (integrated) Clearing MP keyboard
trouble 1-429
TOPS MP Operator complaint (integrated) Clearing voice communication
path trouble 1-439
TOPS MP Operator complaint (standalone) Clearing link trouble 1-447
TOPS MP Operator complaint (standalone) Clearing MP keyboard
trouble 1-463
TOPS MP Operator complaint (standalone) Clearingpositionfailure-cannot
reboot TPC 1-472
TOPS MP Operator complaint (standalone) Clearingpositionfailure-cannot
RTS position 1-483
TOPS MP Operator complaint (standalone) Clearing screen trouble 1-498
TOPS MP Operator complaint (standalone) Clearing voice communication
path trouble 1-503
TOPS MP Operator complaint (standalone/integrated) Clearing DA access
trouble 1-513
TOPS MP Operator complaint (standalone/integrated) Clearing ORDB ac-
cess trouble 1-522
TOPS MP TAMI trouble (integrated) Clearing TAMI response failure 1-531

Contents v
DMS-100 Family NA100 Trouble Locating and Clearing Procedures Volume 2 of 2 LET0015 and up
TOPS MP TAMI trouble (standalone) Clearing TAMI response
failure 1-534
TOPS MPX Operator complaint audio/headset malfunction 1-540
TOPS MPX Power-on self test 1-546
TOPS MPX Power-on self-test troubleshooting 1-551
TOPS MPX terminal system diagnostic TOPS MPX 1-558
TOPS MPX Token Ring LAN troubleshooting 1-580
Troubleshooting a customer-reported failure No FRIU alarms 1-625
Troubleshooting a customer-reported failure No PM alarms 1-631
Updating TOPS MPX software 1-638
VSLE session defaults to audio SLE 1-643