Nortel DMS-100 Series User manual

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Publication number: 297-8211-550
Publication release: Standard 05.02
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Publication History
March 2004
Standard release 05.02 for software release SN06 (DMS) and ISN06 (TDM).
Change of phone number from 1-800-684-2273 to 1-877-662-5669, Option 4 + 1.

XPM12 and up Standard 05.01 August 1999
297-8211-550
DMS-100 Family
Outside Plant Access Cabinet (OPAC)
Maintenance Manual

DMS-100 Family OPAC Maintenance Manual XPM12 and up
DMS-100 Family
Outside Plant Access Cabinet (OPAC)
Maintenance Manual
Copyright 1996, 1997, 1998, 1999 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.
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, and the radio interference regulations of Industry Canada. 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 the user’s own expense. This equipment is
capable of providing users with access to interstate providers of operator services through the use of equal access codes.
Modifications by aggregators to alter these capabilities is a violation of the Telephone Operator Consumer Service
Improvement Act of 1990 and Part 68 of the FCC Rules.
DMS
, MAP, NORTEL, NORTELNETWORKS, NORTHERN TELECOM, NT, and SUPERNODE are trademarks of Nortel
Networks Corporation.
Publication number: 297-8211-550
Product release: XPM12 and up
Document release: Standard 05.01
Date: August 1999

DMS-100 Family OPAC Maintenance Manual XPM12 and up
iii
Contents
About this document ix
When to use this document ix
How to check the version and issue of this document ix
References in this document x
What precautionary messages mean x
How commands, parameters, and responses are represented xi
Input prompt (>) xi
Commands and fixed parameters xi
Variables xi
Responses xi
OPAC maintenance overview 1-1
Functional overview 1-1
FCC statement 1-2
General configuration 1-2
Line concentrating module 1-5
HIE description 1-18
Remote maintenance module 1-25
Modular supervisory panel 1-29
Software description 1-31
Fault conditions 1-33
LCA shelf failure 1-33
Line drawer faults 1-34
Link failure 1-34
Load file mismatch 1-35
Automatic maintenance 1-35
OPAC audits 1-35
Checksums 1-37
Overload resources 1-37
Takeover capability 1-45
LCM talk battery audit 1-46
ESA capability 1-53
RMM maintenance 1-53
Drawer testing 1-54
BIC relay test 1-56
Subscriber lines automatic maintenance 1-65
LCM REX test 1-65
System REX controller: XPM maintenance 1-68
Escalation to manual maintenance 1-75
Alarm conditions 1-75

iv Contents
297-8211-550 Standard 05.01 August 1999
Subscriber lines manual maintenance 1-77
Drawer maintenance 1-77
OPAC power and environment system (PES) maintenance 2-1
Functional description 2-1
Physical design 2-1
Outside plant termination compartment 2-5
Environmental control equipment 2-11
Electrical system 2-14
OPAC power and environmental system maintenance 2-27
OPAC battery backup system 2-28
OPAC power matrix and example current demand 2-29
OPAC power requirements 2-32
Calculating battery backup time 2-33
Normal charge time 2-34
Fault conditions 2-35
PES description 2-35
Alarm system 2-35
Load bus low voltage alarm 2-38
Automatic maintenance 2-39
Battery control and testing system 2-40
Hardware audit 2-41
Battery rotation and testing audit 2-43
Normal battery rotation mode 2-45
Rotation disabled mode 2-51
ac failure mode 2-52
Post-ac failure mode (short) 2-52
Post-ac failure mode (extended) 2-53
Escalation to manual maintenance 2-53
Manual testing OPAC systems 2-53
Manual battery actions and system voltage measurements 2-54
Querying PES alarms 2-56
On-site outdoor physical maintenance 2-60
Manual test procedures for system-failed battery strings 2-64
ESA maintenance overview 3-1
Functional description 3-1
ESA hardware representation 3-1
ESA operation 3-3
ESA hardware 3-4
In-service firmware downloading 3-10
Software operation 3-13
Intracalling during ESA mode 3-13
ESA call processing 3-13
ESA translation data 3-19
Supported subscriber line types 3-20
Supported subscriber services 3-21
Channel configuration 3-22
Exiting OPAC ESA mode 3-23
Ringing during ESA mode 3-27
Treatments during ESA mode 3-27

Contents v
DMS-100 Family OPAC Maintenance Manual XPM12 and up
ESA limits and restrictions 3-27
Limits during the ESA mode 3-27
Restrictions during ESA mode 3-28
Fault conditions 3-28
Unusable communication links 3-29
Loop-around message audit failure 3-29
Automatic ESA maintenance 3-30
ESA line audits 3-30
Digitone receiver audit 3-31
Automatic static data downloading and system maintenance 3-31
Routine exercise test 3-32
Escalation to manual maintenance 3-33
Loading ESA static translations data 3-33
ESA manual exit 3-34
LTC maintenance to prevent ESA mode 3-34
OPAC signaling 4-1
Signaling for OPAC 4-1
OPAC signaling links 4-1
Signaling protocol 4-2
Signaling functions 4-4
OPAC hardware 5-1
OPAC hardware components 5-1
Hardware configuration 5-1
Line concentrating module 5-7
Host interface equipment 5-8
Remote maintenance module 5-9
Modular supervisory panel 5-10
Fuse panel 5-10
Battery control unit 5-10
Rectifiers 5-11
T1 repeater shelf 5-11
Environmental controls 5-11
Additional OPAC components 5-13
Batteries/battery shelf 5-13
Operating company-provided equipment 5-14
Earthquake protection equipment 5-16
The OPAC recovery procedures 6-1
Recovering an out-of-service OPAC 6-2
Alarm clearing procedures 7-1
OPAC critical 7-2
LCM (RG) critical 7-16
OPAC talk battery alarm Critical 7-25
RLCM major 7-40
OPAC (RG) major 7-49
Ext MSP major 7-59
RMM major 7-76
OPAC minor 7-86

vi Contents
297-8211-550 Standard 05.01 August 1999
RMM minor 7-99
PMPES critical, major, minor 7-105
ESA critical, minor 7-122
OPAC card replacement procedures 8-1
NT0X10 RMM 8-2
NT2X06 RMM 8-6
NT2X09 RMM 8-14
NT2X10 RMM 8-21
NT2X11 RMM 8-26
NT2X48 RMM 8-31
NT2X57 RMM 8-36
NT2X59 RMM 8-40
NT2X70 HIE 8-44
NT2X90 RMM 8-51
NT3X09 RMM 8-56
NT6X17 LCM 8-62
NT6X18 LCM 8-66
NT6X19 LCM 8-71
NT6X20 LCM 8-75
NT6X21 LCM 8-79
NT6X45 HIE 8-84
NT6X47 HIE 8-90
NT6X50 HIE 8-96
NT6X51 LCM 8-103
NT6X52 LCM 8-111
NT6X53 LCM 8-118
NT6X54 LCM 8-125
NT6X60 HIE 8-135
NT6X71 LCM 8-143
NT6X73 HIE 8-147
NT6X74 RMM 8-152
NT6X75 HIE 8-159
NT6X99 LCM 8-167
NT8X02 BCU 8-171
NTMX45 HIE 8-175
NTRX41 MSP 8-186
NTRX42 MSP 8-192
NTRX43 MSP 8-212
NTRX44 MSP 8-220
NTRX66 MSP 8-232
Replacing a card 8-238
Replacing a line card 8-244
Locating and clearing OPAC trouble 9-1
Trouble isolation and correction 10-1
Description of troubleshooting procedures 10-1
Performance indicators 10-1
Locating and clearing faults 10-2
Fault isolation tests 10-3

Contents vii
DMS-100 Family OPAC Maintenance Manual XPM12 and up
Defective line drawer 10-3
Defective shelf circuit pack 10-3
Defective line card 10-3
Procedure 1 10-3
Procedure 2 10-4
Defective DS-1 link 10-4
Defective ringing generator (RG) frequency generator circuit 10-4
Load file mismatch 10-5
Diagnostic tests 10-5
OPAC line trunk controller (LTC) diagnostics 10-5
Bit error rate performance testing 10-7
XPM bit error ratio test 10-8
Lines maintenance 10-10
Automatic line testing 10-10
Station testing 10-13
Manual line testing 10-13
Ring pretrip on LCM lines 10-13
Product-specific test tools 10-17
Line maintenance cutover (LMCUT) 10-17
Troubleshooting chart 11-1
Advanced troubleshooting procedures 12-1
Powering-up the OPAC 12-1
Powering-down the OPAC 12-2
Common procedures 12-3
Troubleshooting a loading failure 12-3
Troubleshooting RTS failure 12-6
Troubleshooting dial tone problems 12-7
Troubleshooting ringing generator problems 12-7
OPAC routine maintenance procedures 13-1
Battery capacity test OPAC 13-2
Battery inspection and cleaning OPAC 13-10
Battery replacement OPAC 13-16
Ground check OPAC 13-23
Discharge test failure OPAC 13-26
Door alarm test OPAC 13-29
Dust removal OPAC 13-35
Fan cleaning and testing OPAC 13-38
Fan alarm test OPAC 13-41
Fan filter replacement, air induction roof OPAC 13-45
Fuse replacement OPAC 13-48
GFCI check OPAC 13-51
High temperature alarm test OPAC 13-54
Heaters test OPAC 13-58
Low temperature alarm test OPAC 13-62

viii Contents
297-8211-550 Standard 05.01 August 1999
Lubricate door hinges OPAC 13-66
Open-circuit test failure OPAC 13-69
Paint touch–up OPAC 13-73
Post charge test failure OPAC 13-76
Rectifier voltage check OPAC 13-80
Rectifier replacement OPAC 13-84
Wrist strap grounding cords test OPAC 13-87
Fan replacement, internal fans OPAC 13-90
Rectifier voltage adjustment OPAC 13-93
Site test OPAC 13-97
Index 14-1

DMS-100 Family OPAC Maintenance Manual XPM12 and up
ix
About this document
When to use this document
This Outside Plant Access Cabinet (OPAC) maintenance reference manual
provides: overview, signaling, and hardware information for understanding
the OPAC product and operation; recovery procedure for returning to service
an OPAC from a completely out-of-service condition; alarm clearing proce-
dures for clearing an OPAC alarm condition at the MAP; card replacement
procedures for removing and replacing hardware modules in the OPAC as
part of maintenance, verification, or acceptance procedures; trouble locating
and clearing information for locating and clearing problems beyond the
scope of other maintenance procedures; and routine maintenance procedures
for performing scheduled routine and preventive maintenance tasks.
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. In the next software
release cycle, the first release of the same document is 02.01.
The second two digits indicate the issue. The issue number increases each
time the document is revised but rereleased in the same software release
cycle. For example, the second release of a document in the same software
release cycle is 01.02.
To determine which version of this document applies to the software in your
office and how documentation for your product is organized, check the
release information in the DMS-10 and DMS-100 Family Product
Documentation Directory, 297-8991-001.
This document is written for all DMS-100 Family offices. More than one
version of this document may exist. To determine whether you have the
latest version of this document and how documentation for your product is
organized, check the release information in the DMS-10 and DMS-100
Family Product Documentation Directory, 297-8991-001.

x About this document
297-8211-550 Standard 05.01 August 1999
References in this document
The following documents are referred to in this document:
•DMS-100 Family Guide to Northern Telecom Publications,
297-8991-001
•Input/Output System Reference Manual, 297-1001-129
•Extended Peripheral Module Operational Measurements Reference
Manual
•Extended Peripheral Module Logs Report Reference Manual
•Extended Peripheral Module Translations Reference Manual
What precautionary messages mean
The types of precautionary messages used in Nortel Networks documents
include attention boxes and danger, warning, and caution messages.
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
Mapper is installed, the DS-1 traffic will not be carried through the
DS-1/VT Mapper, even though the DS-1/VT Mapper is properly
provisioned.
DANGER Possibility of personal injury
DANGER
Risk of electrocution
Do not open the front panel of the inverter unless fuses
F1, F2, and F3 have been removed. The inverter contains
high-voltage lines. Until the fuses are removed, the
high-voltage lines are active, and you risk being
electrocuted.
WARNING Possibility of equipment damage

About this document xi
DMS-100 Family OPAC Maintenance Manual XPM12 and up
WARNING
Damage to the backplane connector pins
Align the card before seating it, to avoid bending the
backplane connector pins. Use light thumb pressure to
align the card with the connectors. Next, use the levers on
the card to seat the card into the connectors.
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.
How commands, parameters, and responses are represented
Commands, parameters, and responses in this document conform to the
following conventions.
Input prompt (>)
An input prompt (>) indicates that the information that follows is a
command:
>BSY
Commands and fixed parameters
Commands and fixed parameters that are entered at a MAP terminal are
shown in uppercase letters:
>BSY CTRL
Variables
Variables are shown in lowercase letters:
>BSY CTRL ctrl_no
The letters or numbers that the variable represents must be entered. Each
variable is explained in a list that follows the command string.
Responses
Responses correspond to the MAP display and are shown in a different type:

xii About this document
297-8211-550 Standard 05.01 August 1999
FP 3 Busy CTRL 0: Command request has been submitted.
FP 3 Busy CTRL 0: Command passed.
The following excerpt from a procedure shows the command syntax used in
this document:
Manually busy the CTRL on the inactive plane by typing
>BSY CTRL ctrl_no
and pressing the Enter key.
where
ctrl_no is the number of the CTRL (0 or 1)
Example of a MAP response :
FP 3 Busy CTRL 0: Command request has been submitted.
FP 3 Busy CTRL 0: Command passed.
1

DMS-100 Family OPAC Maintenance Manual XPM12 and up
1-1
OPAC maintenance overview
Functional overview
The Outside Plant Access Cabinet (OPAC) offers the enhanced capacity and
versatility necessary for increased service delivery. The OPAC incorporates
the functions of multiple outside plant enclosures. The OPAC can address a
wide range of application requirements in present and future access
networks.
The OPAC is a remote peripheral that provides the extended geographic
coverage for the DMS-100 switch. The OPAC is configured to operate at a
maximum distance of 160.93 km (100 mi) from the host office.
This guide describes the OPAC and provides information on the operation,
user interface, alarms, and logs required for maintenance.
The OPAC contains hardware and software maintenance components that
perform routine audits and identify failures in the following:
•the OPAC
•the DS-1 links that connect the OPAC to the host controller
•the subscriber lines
•the Series 800E Cabinet
The OPAC provides an interface for two to six DS-1 links from a line group
controller (LGC), line trunk controller (LTC), or remote cluster controller
(RCC). The OPAC also provides a maximum of 640 subscriber lines with
local connections.
The OPAC is a reconfigured Remote Line Concentrating Module (RLCM)
designed for outside use. The OPAC has additional equipment that provides
temperature control in the Series 800E Cabinet. The OPAC is available in a
configuration that supports 256 lines.
The size of the OPAC cabinet allows the operating company to provision
other equipment.

1-2 Maintenance overview
297-8211-550 Standard 05.01 August 1999
Note 1: This guide uses the names RLCM and Outside Plant Module
(OPM) with the OPAC. The OPM is a reconfigured RLCM packaged in a
cabinet that protects the OPM from the environment.
Note 2: An OPM packaged in the Series 800E Cabinet is an OPAC. The
OPAC replaces the frame supervisory panel (FSP) with a modular
supervisory panel (MSP).
Note 3: There are no software changes as part of the OPAC. Original
design names, like RLCM, OPM, and FSP, continue to identify some
features. These features include feature packages, office parameters,
translations datafill, software module names and functions, and MAP levels
and commands.
Note 4: The name PES (power and environmental system) applies to the
OPM. The name PES also applies to the environmental control and alarms
features of the Series 800E Cabinet integrated with the OPAC.
This chapter contains a hardware and software overview of the OPAC
configuration. Another section discusses the Series 800E Cabinet.
FCC 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.
General configuration
This section describes how the different hardware components of the OPAC
interact for maintenance troubleshooting.
The OPAC is packaged in the Series 800E Cabinet. The Series 800E
Cabinet is an environmentally-controlled cabinet that consists of three
compartments The compartments house the following:
•electronics and batteries
•ac power distribution
•cable and wire termination, protection, and cross-connections

Maintenance overview 1-3
DMS-100 Family OPAC Maintenance Manual XPM12 and up
The OPAC consists of:
•a line concentrating module (LCM)
•host interface equipment (HIE)
•a remote maintenance module (RMM)
The OPAC supports all line features available at the host. These features
include the following line features:
•plain old telephone service (POTS)
•party lines
•coin lines
•Meridian Digital Centrex (MDC) stations
•Meridian business sets (MBS)
•data units
•attendant consoles
•Datapath
The OPAC requires the following software feature packages:
•Remote Line Concentrating Module (NTX146AA)
•Outside Plant Module Maintenance (NTX147AA)
The following optional feature packages are also available with the OPAC:
•Intracalling (NTX156AA)
•Emergency Stand-Alone (ESA) Operation (NTX154AA)
The following figure illustrates the OPAC arrangement in the Series 800E
Cabinet.

1-4 Maintenance overview
297-8211-550 Standard 05.01 August 1999
OPAC arrangement
Bay 0
HIE RMM
Fuse panels
Bay 1
BCC0 BCC1
Door switchAir induction roof
Termination
compartment Attached power
pedestal
Electrical
compartment
LCA-1LCA-0
BCU
LCM
MSP
Cooling unit Cooling unit
Rectifiers
Filler panel
PO747175