Nortel 1000S Guide

ISDN Primary Rate Interface Maintenance
Nortel Networks Communication Server 1000
Nortel Networks Communication Server 1000 Release 4.0
ISDN Primary Rate Interface
Maintenance
Document Number: 553-3001-517
Document Release: Standard 2.00
Date: September 2004
Year Publish FCC TM
Copyright © 2003–2004 Nortel Networks
All Rights Reserved
Produced in Canada
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.
SL-1, Meridian 1, and Succession are trademarks of Nortel Networks.
Title page

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ISDN Primary Rate Interface Maintenance
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Revision history
September 2004
Standard 2.00. This document is up-issued for Communication Server 1000
Release 4.0.
October 2003
Standard 1.00 This document is a new NTP for Succession 3.0. It was created
to support a restructuring of the Documentation Library, which resulted in the
merging of multiple legacy NTPs. This new document consolidates
information previously contained in the following legacy documents, now
retired:
•ISDN PRI: Maintenance (553-2901-501)
•1.5Mb DTI/PRI Description, Installation and Maintenance
(553-3011-310). Content from 1.5Mb DTI/PRI Description, Installation
and Maintenance (553-3011-310) also appears in ISDN Primary Rate
Interface: Installation and Configuration (553-3001-201).
•2.0Mb DTI/PRI Description, Installation and Maintenance
(553-3011-315 2.0). Content from 2.0Mb DTI/PRI Description,
Installation and Maintenance (553-3011-315 2.0) also appears in ISDN
Primary Rate Interface: Installation and Configuration (553-3001-201).

Page 4 of 210 Revision history
553-3001-517 Standard 2.00 September 2004

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ISDN Primary Rate Interface Maintenance
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Contents
About this document . . . . . . . . . . . . . . . . . . . . . . . 9
Subject .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Applicable systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Intended audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Conventions .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Related information .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
PRI fault clearing . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
PRI Red alarm (local alarm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
PRI Yellow alarm (remote alarm) .. . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
PRI problems .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
D-channel problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Quick reference to PRI operations . . . . . . . . . . . . 25
Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
PRI commands (LD 60) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
PRI messages .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
DCHI quick reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
D-channel commands (LD 96) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
DCH messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
MSDL commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Maintenance service messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

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553-3001-517 Standard 2.00 September 2004
PRI status check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
PRI startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Network Call Trace .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Primary Rate Interface maintenance . . . . . . . . . . 47
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
PRI commands (LD 60) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
PRI alarm commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
PRI test commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
PRI tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
PRI error detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
TN-to-channel number conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Use the error counter .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Replace the PRI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Pulsed E&M DTI2 signaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
D-channel maintenance . . . . . . . . . . . . . . . . . . . . . 73
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
DCH commands (LD 96) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
DCH tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
DCH traffic (LD 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
MSDL local loopback test (NT6D80) . . . . . . . . . . . . . . . . . . . . . . . . . 87
MSDL remote loopback tests (NT6D80) . . . . . . . . . . . . . . . . . . . . . . . 90
Protocol log (PLOG) .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Replace the DCHI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
LD 60 - Loop Maintenance for SYS-12, AXE-10, SWE, SWISSNET,
NUMERIS, EuroISDN, NEAX-61, Asia-Pacific . . . . . . . . . . . . . . . . . 98
Clock controller maintenance . . . . . . . . . . . . . . . . 99
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Clock operation .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Clock controller commands (LD 60) . . . . . . . . . . . . . . . . . . . . . . . . . . 102

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ISDN Primary Rate Interface Maintenance
Replace the clock controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Clock controller cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
ISDN Signaling Link maintenance . . . . . . . . . . . . . 111
Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
ISL status formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
ISL startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
ISL recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
1.5 Mb DTI/PRI maintenance . . . . . . . . . . . . . . . . . 117
Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Monitor DTI/PRI operation .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
DTI/PRI maintenance tools .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
1.5 Mb ISL maintenance . . . . . . . . . . . . . . . . . . . . . 151
Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
ISL maintenance tools .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
2.0 Mb DTI maintenance . . . . . . . . . . . . . . . . . . . . . 159
Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Monitor system DTI operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
System DTI maintenance tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
2.0 Mb PRI maintenance . . . . . . . . . . . . . . . . . . . . . 179
Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Enable the 2.0 Mb PRI after installation . . . . . . . . . . . . . . . . . . . . . . . . 179
Disable the 2.0 Mb PRI before removal . . . . . . . . . . . . . . . . . . . . . . . . 181
Monitor system PRI operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182

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553-3001-517 Standard 2.00 September 2004
System PRI maintenance tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
2.0 Mb ISL maintenance . . . . . . . . . . . . . . . . . . . . . 207
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Overview .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
ISL maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207

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ISDN Primary Rate Interface Maintenance
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About this document
This document is a global document. Contact your system supplier or your
Nortel Networks representative to verify that the hardware and software
described are supported in your area.
Subject
This document provides maintenance procedures for ISDN Primary Rate
Interface (PRI) capability on Meridian 1, CS 1000S, and CS 1000M systems.
Note on legacy products and releases
This NTP contains information about systems, components, and features that
are compatible with Nortel Networks Communication Server 1000
Release 4.0 software. For more information on legacy products and releases,
click the Technical Documentation link under Support on the Nortel
Networks home page:
http://www.nortelnetworks.com/
Applicable systems
This document applies to the following systems:
• Communication Server 1000S (CS 1000S)
• Communication Server 1000M Chassis (CS 1000M Chassis)
• Communication Server 1000M Cabinet (CS 1000M Cabinet)
• Communication Server 1000M Half Group (CS 1000M HG)
• Communication Server 1000M Single Group (CS 1000M SG)

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553-3001-517 Standard 2.00 September 2004
• Communication Server 1000M Multi Group (CS 1000M MG)
• Communication Server 1000E (CS 1000E)
• Meridian 1 PBX 11C Chassis (Meridian 1 PBX 11C Chassis)
• Meridian 1 PBX 11C Cabinet (Meridian 1 PBX 11C Cabinet)
• Meridian 1 PBX 51C
• Meridian 1 PBX 61C
• Meridian 1 PBX 61C CP PII
•Meridian1PBX81
• Meridian 1 PBX 81C
• Meridian 1 PBX 81C CP PII
Note: When upgrading software, memory upgrades may be required on
the Signaling Server, the Call Server, or both.
System migration
When particular Meridian 1 systems are upgraded to run CS 1000 Release 4.0
software and configured to include a Signaling Server, they become
CS 1000M systems. Table 1 lists each Meridian 1 system that supports an
upgrade path to a CS 1000M system.
Table 1
Meridian 1 systems to CS 1000M systems (Part 1 of 2)
This Meridian 1 system... Maps to this CS 1000M system
Meridian 1 PBX 11C Chassis CS 1000M Chassis
Meridian 1 PBX 11C Cabinet CS 1000M Cabinet
Meridian 1 PBX 51C CS 1000M Half Group
Meridian 1 PBX 61C CS 1000M Single Group
Meridian 1 PBX 61C CP PII CS 1000M Single Group
Meridian 1 PBX 81 CS 1000M Multi Group