Lucent Technologies MERLIN LEGEND Release 6.1 Operating instructions

555-661-140
Comcode 108289513
Issue 1
August 1998
MERLIN LEGEND®
Communications System
Release 6.1
Maintenance and Troubleshooting

Notice
Every effort was made to ensure that the information in this book was complete and accurate at the time of printing.
However, information is subject to change.
See Appendix A, “Customer Support Information,” for important information. It follows
Maintenance and
Troubleshooting
in this binder.
Your Responsibility for Your System’s Security
Toll fraud is the unauthorized use of your telecommunications system by an unauthorized party, for example,
persons other than your company’s employees, agents, subcontractors, or persons working on your company’s behalf.
Note that there may be a risk of toll fraud associated with your telecommunications system, and if toll fraud occurs, it
can result in substantial additional charges for your telecommunications services.
You and your system manager are responsible for the security of your system, such as programming and
configuring your equipment to prevent unauthorized use. The system manager is also responsible for reading all
installation, instruction, and system administration documents provided with this product in order to fully understand the
features that can introduce risk of toll fraud and the steps that can be taken to reduce that risk. Lucent
Technologies does not warrant that this product is immune from or will prevent unauthorized use of common-carrier
telecommunication services or facilities accessed through or connected to it. Lucent Technologies will not be
responsible for any charges that result from such unauthorized use. For important information regarding your
system and toll fraud, see Appendix A, “Customer Support Information.”
Federal Communications Commission Statement
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful
interference, in which case the user will be required to correct the interference at his own expense. For further FCC
information, see Appendix A, “Customer Support Information.”
Canadian Department of Communications (DOC)
Interference Information
This digital apparatus does not exceed the Class A limits for radio noise emissions set out in the radio interference
regulations of the Canadian Department of Communications.
Le Présent Appareil Numérique n’émet pas de bruits radioélectriques dépassant les limites applicables aux
appareils numériques de la classe A préscrites dans le réglement sur le brouillage radioélectrique édicté par le
ministère des Communications du Canada.
Year 2000 Compliance
The MERLIN LEGEND Communications System is certified to be Year 2000 compliant. Additional information on this-
certification, and other issues regarding Year 2000 compliance, is available online at http://www.lucent.com/enteprise/
sig/yr2000.
Copyright ©1998, Lucent Technologies 555-661-140
All Rights Reserved Issue 1
Printed in USA August 1998

Trademarks
5ESS, ACCUNET, ACCULINK, CONVERSANT, DEFINITY, Magic On Hold, Megacom, MERLIN, MERLIN II,
MERLIN LEGEND, MERLIN MAIL, MultiQuest, Music on Hold, PassageWay, MLX-5, MLX-5D, MLX-10, MLX-10D,
MLX-10DP, MLX-16DP, MLX-20L, MLX-28D and Systimax are registered trademarks and 4ESS, Lucent Technologies
Attendant, AUDIX Voice Power, FAX Attendant System, HackerTracker, MERLIN Identifier, ProLogix, are trademarks of
Lucent Technologies in the US and other countries.
Microsoft and Windows are registered trademarks of Microsoft Corporation.
ProComm and ProComm Plus are registered trademarks of DataStorm Technologies, Inc.
Supra, StarSet, and Mirage are registered trademarks of Plantronics, Inc. UNIX is a registered trademark of UNIX Sys-
tem Laboratories, Inc.
PagePac is a registered trademark of DRACON, a division of Harris Corporation.
Okidata is a registered trademark of Okidata Corporation.
NORTEL is a registered trademark and DMS a trademark of Northern Telecom.
MCI, Prism, and Vnet are registered trademarks of MCI Communications Corporation.
Ordering Information
For more information about Lucent Technologies documents, refer to the section entitled, “Related Documents” in
“
About This Book .”
Support Telephone Number
In the continental US, Lucent Technologies provides a toll-free customer helpline 24 hours a day. Call the Lucent
Technologies Helpline at 1 800 628-2888 or your Lucent Technologies authorized dealer if you need assistance when
installing, programming, or using your system. Outside the continental US, contact your local Lucent
Technologies authorized representative.
Network Engineering Group
For assistance in designing a private network call the Network Engineering Group at 1 888 297-4700.
Lucent Technologies Corporate Security
Whether or not immediate support is required, all toll fraud incidents involving Lucent Technologies products or
services
should be reported to Lucent Technologies Corporate Security at 1 800 821-8235. In addition to recording the
incident, Lucent Technologies Corporate Security is available for consultation on security issues, investigation support,
referral to law enforcement agencies, and educational programs.
Lucent Technologies Fraud Intervention
If you suspect you are being victimized by toll fraud and you need technical support or assistance, call BCS National
Service Assistance Center at 1 800 628-2888.
Warranty
Lucent Technologies provides a limited warranty on this product. Refer to “Limited Warranty and Limitation of
Liability” in Appendix A, “Customer Support Information,” which follows
Maintenance and Troubleshooting in this binder.
Call: BCS Publications Center
Voice 1 800 457-1235 International Voice 317 322-6791
Fax [phone] International Fax [phone]
Write: BCS Publications Center
2855 North Franklin Road
Indianapolis, IN 46219-1385
Order: Document No. 555-661-140
Comcode: 108289513
Issue 1, August 1998

MERLIN LEGEND Communications System Release 6.1
Maintenance and Troubleshooting
555-661-140
Issue 1
August 1998
Contents
Page iv
Contents
About This Book xix
■Intended Audience xix
■How to Use This Book xix
■Product Safety Labels xxii
■Security xxii
■Related Documents xxiii
■How to Comment on This Document xxv
1Introduction 1-1
■Equipment 1-1
■On-Site Programming Maintenance 1-3
■Remote Programming Maintenance 1-6
■Using SPM 1-8
■Preparation for Hardware Maintenance 1-18
■Maintenance Strategy 1-21
■Unit Loads 1-35

MERLIN LEGEND Communications System Release 6.1
Maintenance and Troubleshooting
555-661-140
Issue 1
August 1998
Contents
Page v
2Error Logs, Access Logs, and System Inventory 2-1
■Error Logs 2-1
■Access Log 2-27
■System Inventory 2-29
3Telephone Problems 3-1
■Fixing Telephone
Problems 3-2
■MLX Telephone Tests 3-6
■System Requirements for Touch-Tone Receivers 3-8
4Control Unit Problems 4-1
■Backing Up System Programming 4-1
■Power Supply Problems 4-2
■Processor Problems 4-12
■Module Problems 4-34
■800 NI-BRI Module Problems 4-75
■100D Module Problems 4-100
■Computer Telephony Integration (CTI) Link Problems 4-114
■Removing a CTI Link 4-125
■Carrier Problems 4-127
■Checking System and Slot Status 4-128

MERLIN LEGEND Communications System Release 6.1
Maintenance and Troubleshooting
555-661-140
Issue 1
August 1998
Contents
Page vi
5Central Office and Private Network Problems 5-1
■Trunk Errors 5-1
■Checking Ports 5-7
■Private Network Calling Problems 5-41
■Call to Non-Local Extension:
Warble Tone (Error Tone) 5-55
■Calls to Non-Local Extensions:
Unexpected Busy Tone 5-58
■Call to Non-Local Extension
Reaches Wrong Extension 5-59
■Call to Non-Local Extension: Message from CO 5-60
■Transfer to Non-Local Extension Not Completed 5-61
■Transfer Call to Non-Local Extension
Does Not Return 5-62
■Conference: Cannot Add Call 5-63
■DID Calls Not Completed 5-63
■ARS Calls Are Blocked 5-65
■Callback Does Not Work 5-66
■Private Network Call Transmission Level
(Volume) Too Low or Too High 5-66
■MLX Displays: Private Network Call Display Problems 5-69
■PassageWay Call Display Problems 5-70
■ARS Calls Go to System
Operator (Unassigned Extension) 5-71
■DID or PRI Dial-Plan Routed Calls Not Completed 5-72
■Excessive Line Noise on Voice and Data Calls 5-72

MERLIN LEGEND Communications System Release 6.1
Maintenance and Troubleshooting
555-661-140
Issue 1
August 1998
Contents
Page vii
■Station Message Detail Recording
(SMDR) Reports Do Not Include
Calls across the Private Network 5-73
■Conclusion of Hardware Maintenance 5-74
ACustomer Support Information A-1
■Support Telephone Number A-1
■Federal Communications Commission (FCC)
Electromagnetic Interference Information A-1
■Canadian Department of Communications
(DOC) Interference Information A-2
■FCC Notification and Repair Information A-2
■Installation and Operational Procedures A-4
■DOC Notification and Repair Information A-6
■Renseignements sur la
notification du ministère des Communications du
Canada et la réparation A-8
■Security of Your System: Preventing Toll Fraud A-11
■Toll Fraud Prevention A-13
■Other Security Hints A-20
■Limited Warranty and Limitation of Liability A-25
■Remote Administration and Maintenance A-27

MERLIN LEGEND Communications System Release 6.1
Maintenance and Troubleshooting
555-661-140
Issue 1
August 1998
Contents
Page viii
BSystem Numbering Forms B-1
■Form 2a, System Numbering: Extension Jacks B-2
■Form 2b, System Numbering: Digital Adjuncts B-4
■Form 2c, System Numbering: Line/Trunk Jacks B-5
■Form 2d, System Numbering: Special Renumbers B-6
CUnit Load Calculation Worksheet C-1
■Unit Load Worksheet C-2
D Backing Up with a Memory Card D-1
■Card Types D-1
■Memory Card Formatting D-5
■Backup D-7
■Automatic Backup D-11
■Restore D-18
EModifying a Release 2.1 or Earlier
Processor for Permanent Key ModeE-1
■Modifying the Processor E-1
■Installing the Control Unit Housing E-3

MERLIN LEGEND Communications System Release 6.1
Maintenance and Troubleshooting
555-661-140
Issue 1
August 1998
Contents
Page ix
FNI-1 BRI Provisioning F-1
■Lucent Technologies 5ESS Switch Translations F-2
■Northern Telecom DMS-100 Switch Translations F-20
■Siemens SSC EWSD Switch Translations F-31
GL Glossary GL-1
IN Index IN-1

MERLIN LEGEND Communications System Release 6.1
Maintenance and Troubleshooting
555-661-140
Issue 1
August 1998
Contents
Page x

MERLIN LEGEND Communications System Release 6.1
Maintenance and Troubleshooting
555-661-140
Issue 1
August 1998
Figures
Page xi
Figures
1 Introduction
1-1 Setting Up the MLX-20L Console 1-5
1-2 Setting Up the PC 1-6
1-3 External Modem Setup 1-8
1-4 The SPM Display 1-15
1-5 Removing the Control Unit Housing 1-19
1-6 Disconnecting AC Power 1-20
1-7 Maintenance Strategy 1-22
4 Control Unit Problems
4-1 Power Supply Interlocking Post 4-4
4-2 Replacing a Ring Generator 4-7
4-3 Replacing an Auxiliary Power Supply 4-9
4-4 Inserting a Memory Card 4-21
4-5 Replacing the Feature Module 4-33
4-6 Module Test Process 4-35
4-7 Inserting the Upgrade Memory Card 4-66
4-8 551 T1 CSU Loopback Connection 4-104
4-9 ESF T1 CSU DTE Loopback Connection 4-104
4-10 ACCULINK 3150 CSU Front Panel 4-105
4-11 ACCULINK 3150 CSU DTE Loopback Command 1 4-105
4-12 ACCULINK 3150 CSU DTE Loopback Command 2 4-105
4-13 ACCULINK 3150 CSU DTE Loopback Command 3 4-106
4-14 ACCULINK 3150 CSU DTE Loopback Command 4 4-106

MERLIN LEGEND Communications System Release 6.1
Maintenance and Troubleshooting
555-661-140
Issue 1
August 1998
Figures
Page xii
5 Central Office and Private Network Problems
5-1 Installing the Control Unit Top Cover
(Release 2.1 and Later) 5-75
5-2 Installing the Control Unit Front Cover
(Release 2.1 and Later) 5-76
5-3 Assembling the Control Unit Housing
(Release 2.0 and Earlier) 5-78
5-4 Installing the Control Unit Housing
(Release 2.0 and Earlier) 5-79
B System Numbering Forms
B-1 Form 2a, System Numbering: Extension Jacks B-2
B-2 Form 2b, System Numbering: Digital Adjuncts B-4
B-3 Form 2c, System Numbering: Line/Trunk Jacks B-5
B-4 Form 2d, System Numbering: Special Renumbers B-6
D Backing Up with a Memory Card
D-1 PCMCIA Translation Memory Card D-3
D-2 Inserting the Memory Card D-4
E Modifying a Release 2.1 or Earlier
Processor for Permanent Key Mode
E-1 Modifying the Processor for Key Mode E-2
E-2 Installing the Control Unit Housing E-4

MERLIN LEGEND Communications System Release 6.1
Maintenance and Troubleshooting
555-661-140
Issue 1
August 1998
Tables
Page xv
Tables
1 Introduction
1–1 Function of PC Keys in SPM 1-16
2 Error Logs, Access Logs, and System Inventory
2–1 Transient/Permanent Error Thresholds 2-2
2–2 Error Codes 2-6
3 Telephone Problems
3–1 Troubleshooting Telephone Problems 3-2
3–2 MLX Telephone Display Buttons 3-8
3–3 TTRs Required by VMS/AA 3-9
3–4 System Requirement for TTRs 3-10
3–5 TTRs Required for Primary Delay Announcement
Devices When Using Prompt-Based Overflow 3-11
3–6 TTRs Required for Secondary Delay Announcement
Devices When Using Prompt-Based Overflow 3-12
3–7 Modules with TTRs 3-13

MERLIN LEGEND Communications System Release 6.1
Maintenance and Troubleshooting
555-661-140
Issue 1
August 1998
Tables
Page xvi
4 Control Unit Problems
4–1 PEC and Apparatus Codes for 012 Modules 4-5
4–2 Error/Status Display Codes during Forced Installation 4-26
4–3 Internal Loopback Test Errors 4-51
4–4 Board Controller Test Errors 4-57
4–5 Channel Loopback Errors 4-61
4–6 NI-1 BRI Provisioning Test Errors 4-79
4–7 NI-BRI Test Result Codes 4-82
4–8 Internal Loopback Test Errors 4-108
5 Central Office and Private Network Problems
5–1 Troubleshooting Trunk Symptoms 5-2
D Backing Up with a Memory Card
D–1 Memory Card Formatting Messages D-6

MERLIN LEGEND Communications System Release 6.1
Maintenance and Troubleshooting
555-661-140 Issue 1
August 1998
Page xvii
The exclamation point in an equilateral triangle is
intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in
the literature accompanying the product.
IMPORTANT SAFETY INSTRUCTIONS
When installing telephone equipment, always follow basic safety precautions to
reduce the risk of fire, electrical shock, and injury to persons, including:
■Read and understand all instructions.
■Follow all warnings and instructions marked on or packed with the
product.
■Never install telephone wiring during a lightning storm.
■Never install a telephone jack in a wet location unless the jack is
specifically designed for wet locations.
■Never touch uninsulated telephone wires or terminals unless the
telephone wiring has been disconnected at the network interface.
■Use caution when installing or modifying telephone lines.
■Use only Lucent Technologies-manufactured MERLIN LEGEND
Communications System circuit modules, carrier assemblies, and power
units in the MERLIN LEGEND Communications System control unit.
■Use only Lucent Technologies-recommended/approved MERLIN
LEGEND Communications System accessories.
■If equipment connected to the analog extension modules (008, 408, 408
GS/LS) or to the MLX telephone modules (008 MLX, 408 GS/LS-MLX) is
to be used for in-range out-of-building (IROB) applications, IROB
protectors are required.
■Do not install this product near water, for example, in a wet basement
location.

MERLIN LEGEND Communications System Release 6.1
Maintenance and Troubleshooting
555-661-140 Issue 1
August 1998
Page xviii
■Do not overload wall outlets, as this can result in the risk of fire or
electrical shock.
■The MERLIN LEGEND Communications System is equipped with a
3-wire grounding-type plug with a third (grounding) pin. This plug will fit
only into a grounding-type power outlet. This is a safety feature. If you
are unable to insert the plug into the outlet, contact an electrician to
replace the obsolete outlet. Do not defeat the safety purpose of the
grounding plug.
■The MERLIN LEGEND Communications System requires a
supplementary ground.
■Do not attach the power supply cord to building surfaces. Do not allow
anything to rest on the power cord. Do not locate this product where the
cord will be abused by persons walking on it.
■Slots and openings in the module housings are provided for ventilation.
To protect this equipment from overheating, do not block these
openings.
■Never push objects of any kind into this product through module
openings or expansion slots, as they may touch dangerous voltage
points or short out parts, which could result in a risk of fire or electrical
shock. Never spill liquid of any kind on this product.
■Unplug the product from the wall outlet before cleaning. Use a damp
cloth for cleaning. Do not use cleaners or aerosol cleaners.
■Auxiliary equipment includes answering machines, alerts, modems, and
fax machines. To connect one of these devices, you must first have a
Multi-Function Module (MFM).
■Do not operate telephones if chemical gas leakage is suspected in the
area. Use telephones located in some other safe area to report the
trouble.

MERLIN LEGEND Communications System Release 6.1
Maintenance and Troubleshooting
555-661-140 Issue 1
August 1998
Page xix
!
WARNING:
!
■ For your personal safety, DO NOT install an MFM yourself.
■ ONLY an authorized technician or dealer representative shall install, set
options, or repair an MFM.
■ To eliminate the risk of personal injury due to electrical shock, DO NOT
attempt to install or remove an MFM from your MLX telephone. Opening
or removing the module cover of your telephone may expose you to
dangerous voltages.
SAVE THESE INSTRUCTIONS

MERLIN LEGEND Communications System Release 6.1
Maintenance and Troubleshooting
555-661-140 Issue 1
August 1998
Page xx

Page xxi
Intended Audience
MERLIN LEGEND Communications System Release 6.1
Maintenance and Troubleshooting
Issue 1
August 1998
MERLIN LEGEND Communications System Release 6.1
Maintenance and Troubleshooting
555-661-140 Issue 1 August 1998
About This Book
The MERLIN LEGEND Communications System is an advanced digital
switching system that integrates voice and data communications features. Voice
features include traditional telephone features, such as Transfer and Hold, and
advanced features, such as Group Coverage and Park. Data features allow
both voice and data to be transmitted over the same system wiring.
Intended Audience
This book provides detailed information about system and telephone trouble
reports and troubleshooting operations. It is intended for use by qualified field
technicians who are responsible for system maintenance and troubleshooting,
and as a reference by anyone needing such information, including support
personnel, sales representatives, and account executives.
How to Use This Book
This book provides step-by-step procedures for isolating troubles both inside
and outside the communications system. Refer to the chapter associated with
the reported problem to start the troubleshooting procedure.

MERLIN LEGEND Communications System Release 6.1
Maintenance and Troubleshooting
555-661-140 Issue 1
August 1998
Page xxii
How to Use This Book
Refer to the following documentation for additional information:
■ Equipment and Operations Reference provides detailed information on
system hardware, telephones, and other equipment (not updated since
Release 3.0).
■ Feature Reference provides details on the features of the
communications system.
■ System Planning provides procedures and forms for planning a system
for installation.
■ System Programming gives procedural instructions for programming
system features.
■Users’ guides and Operators’ Guides give procedural instructions for
programming and using telephone features.
“Related Documents,” later in this section, provides a complete list of system
documentation together with ordering information.
In this document, the terms in the following list are used in preference to other,
equally acceptable terms for describing communications systems.
Lines, Trunks and Facilities
Facility is a general term that designates a communications path between a
telephone system and the telephone company central office. Technically a
trunk
connects a switch to a switch, for example the MERLIN LEGEND
Communications System to the central office. Technically, a
line is a loop-start
facility or a communications path that does not connect two switches (for
example, an intercom line or a Centrex line). However, in actual usage, the
terms
line and trunk are often applied interchangeably. In this book, we use
line/trunk and lines/trunks to refer to facilities in general. Specifically, we refer to
digital facilities . We also use terms such as personal line, ground-start trunk,
Direct Inward Dialing (DID) trunk, and so on. When you talk to your local
telephone company central office, ask them which terms they use for the
specific facilities they connect to your system.