Nortel DMS-100 Series User manual

297-8353-550
DMS-100 Family
Star Remote System
Star Remote System Maintenance Manual
XPM15 and up Standard 05.01 March 2001

DMS-100 Family
Star Remote System
Star Remote System Maintenance Manual
Publication number: 297-8353-550
Product release: XPM15 and up
Document release: Standard 05.01
Date: March 2001
Copyright © 1998-2001 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 users 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 Star Remote System XPM15 and up
iii
Contents
Star Remote System Maintenance Manual
About this document ix
How to check the version and issue of this document ix
References in this document ix
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
1 Star Remote System introduction 1-1
Introduction to the Star Remote System 1-1
Star Hub introduction 1-1
Star Module overview 1-5
Advantages of the Star Remote System 1-5
2 Star Remote System hardware 2-1
Introduction 2-1
Star Hub 2-1
Star Remote Hub Equipment frame 2-3
Control shelf hardware configuration 2-5
Frame supervisory panel 2-16
Line drawer shelf 2-20
POTS line drawer (NT6X05AA) 2-22
ISDN line drawer for remotes (NT6X05DA) 2-29
1-Meg Modem Service 2-34
Star Module 2-40
TSS hardware configuration 2-41
Star Module 2-56
Line termination unit 2-63
3 Signaling for the Star Remote System 3-1
Introduction 3-1
Voice and data communications 3-1
DS-1 Superframe format 3-1
Superframe format signaling 3-2

iv Contents
297-8353-550 Standard 05.01 March 2001
Extended superframe format signaling 3-4
ISDN BRI signaling 3-6
Communication protocol 3-7
HDLC-based Q.921 CCITT LAPD protocol 3-7
Signaling functions and capabilities 3-8
Star Hub signaling links 3-8
Star Remote System service capabilities 3-9
Call origination 3-9
Tone generation 3-9
Digit collection 3-10
End-to-end signaling 3-10
Ringing 3-11
ESA signaling 3-11
MBS signaling 3-12
Custom local area signaling service 3-13
1-Meg Modem Service supported protocols 3-13
DBIC 3-14
xLC and loop 3-15
1-Meg Modem 3-15
4 Star Remote System automatic maintenance 4-1
Automatic maintenance 4-1
Star Hub audits 4-2
Checksums 4-3
Star Hub to host PM speech path diagnostics 4-3
Star Hub to RCC2 speech path diagnostics 4-5
Speech path diagnostic program for the RCC2 4-5
RCC2 P-side link diagnostic program 4-6
Overload resources 4-6
Takeover capability 4-7
Star Hub talk battery audit 4-8
ESA capability 4-15
Drawer testing 4-16
BIC relay test 4-18
Subscriber lines automatic maintenance 4-25
LCM REXTEST 4-25
System REX controller 4-27
Star Module maintenance 4-32
Star Module audits 4-34
5 ESA maintenance overview 5-1
Functional description 5-1
ESA entry 5-2
ESA call processing 5-3
ESA translation data 5-9
Supported subscriber line types 5-10
Supported subscriber services 5-12
Exiting ESA mode 5-13
Ringing during ESA mode 5-16
Treatments during ESA mode 5-16

Contents v
DMS-100 Family NA100 Star Remote System XPM15 and up
ESA limits 5-16
Fault conditions 5-18
Unusable communication links 5-18
Looparound message audit failure 5-18
Automatic ESA maintenance 5-19
ESA line audits 5-19
Digitone receiver audit 5-20
Automatic static data downloading and system maintenance 5-20
Routine exercise test 5-20
Escalation to manual maintenance 5-21
Loading ESA static translations data 5-22
Manual exit 5-23
LTC maintenance to prevent ESA mode 5-23
6 Star Remote System user interface 6-1
Obtaining help at the MAP terminal 6-2
Understanding command syntax 6-2
CI level user interface 6-3
NAG command 6-3
Line Equipment Number Query 6-4
Scan points and distribution points (SCSD) test tool for RLD/HUB 6-5
PM level user interface 6-5
PM states 6-6
STAR level user interface 6-6
ILD menu descriptions 6-11
QUERYPM command 6-14
RLD level user interface 6-16
RLDPES level user interface 6-20
RLDCarr level 6-23
TSTEQUIP level user interface 6-27
UMP level 6-27
LMU level 6-29
LNS level user interface for the Star Remote System 6-31
LTP level 6-31
EXT level user interface 6-41
TRKS level user interface 6-42
7 Star Remote System manual maintenance 7-1
Troubleshooting methods 7-1
Monitoring performance indicators 7-2
Operational measurements 7-2
Log reports 7-2
Alarms 7-2
Star Hub alarms 7-3
Star Hub alarm reporting 7-8
Star Module alarms 7-10
Star Module log reports 7-14
Locating and clearing faults 7-17
Performing fault isolation tests 7-17
Faulty line drawer 7-18

vi Contents
297-8353-550 Standard 05.01 March 2001
Faulty shelf circuit pack 7-18
Faulty line card 7-18
Faulty DS-1 link 7-19
Faulty ringing generator (RG) frequency generator circuit 7-20
Load file mismatch 7-20
Monitoring results of diagnostic tests 7-20
Bit error rate performance testing 7-20
XPM bit error ratio test 7-21
Entering XBERT 7-22
Testing subscriber lines 7-22
Automatic line testing 7-23
Station testing 7-23
Manual line testing 7-23
Connection to metallic test access 7-24
Line testing from a test desk 7-26
LMU connections in the Star Module 7-34
Digital test access line testing for Star Module ISDN lines 7-36
8 Troubleshooting chart 8-1
Troubleshooting actions 8-1
9 Star Remote System power up and power down
procedures 9-1
Power up and power down procedures 9-1
Star Hub 9-1
Common procedure 9-2
Star Module 9-3
10 Star Remote System recovery procedures 10-1
Star Hub recovery procedure 10-2
11 Star Remote System alarm clearing procedures 11-1
Ext FSP SRHE frame major 11-2
PM STAR critical 11-16
PM STAR major 11-29
PM STAR minor 11-40
PM STAR RG critical 11-60
PM STAR RG major, minor 11-68
STAR talk battery critical 11-78
12 Star Remote System card replacement procedures 12-1
NT6X17 in a STAR or RLD 12-2
NT6X18 in a STAR or RLD 12-6
NT6X19 in a STAR or RLD 12-10
NT6X20 in a STAR or RLD 12-14
NT6X21 in a STAR or RLD 12-18
NT6X53 in a STAR 12-22
NT6X54 in a STAR 12-28
NT6X71 in a STAR or RLD 12-37

Contents vii
DMS-100 Family NA100 Star Remote System XPM15 and up
NT6X76 in a STAR or RLD 12-41
NT6X99 in a STAR or RLD 12-48
NTBX27 in a STAR or RLD 12-52
NTEX17 in a STAR 12-59
NTEX54 in a STAR 12-69
NTMX81 in a STAR 12-86
NTTR46 in an RLD 12-100
NTTR47 in an RLD 12-106
NTTR60 in a STAR 12-112
NTTR66 in an RLD 12-119
NTTR67 in an RLD 12-125
NTTR70 in an RLD 12-132
NTTR71 RLD 12-139
NTTR72 in an RLD 12-144
NTTR73 in a STAR 12-150
NTTR74 in a STAR 12-154
NTTR75 in a STAR 12-160
NTTR76 in a STAR 12-168
NTTR77 in a STAR 12-177
NTTR87 in a STAR 12-184
Replacing a card STAR or RLD 12-197
Replacing a line card STAR or RLD 12-203
13 Star Remote System routine maintenance procedures 13-1
Battery inspection and cleaning Star Module 13-2
Battery replacement Star Module 13-5
Fan cleaning and testing SRMO 13-8
Fan replacement SRMO 13-11
GFCI check SRMO 13-14
Heater element replacement SRMO 13-17
Heaters test SRMO 13-22
High temperature alarm test SRMO and SRME 13-25
Inspecting spare fuse holders STAR 13-28
Low temperature alarm test SRMO and SRME 13-31
Testing ac/dc rectifier voltages RLD 13-34
Testing power converter voltages STAR 13-37
Testing wrist strap grounding cords STAR 13-40

DMS-100 Family NA100 Star Remote System XPM15 and up
ix
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. 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 inthe 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 Product Documentation Directory, 297-8991-001.
References in this document
The following documents are referred to in this document:
•1-Meg Modem Service Network Implementation Manual, 297-8063-200
•Business Set Feature Description and Operation, 297-2011-100
•Business Set Line Engineering, 297-2011-180
•Product Documentation Directory, 297-8991-001
•XPM Log Report Reference Manual, 297-8321-840
•XPM Operational Measurements Reference Manual, 297-8321-814
•XPM Translations Reference Manual, 297-8321-815

x
297-8353-550 Standard 05.01 March 2001
What precautionary messages mean
The types of precautionary messages used in NT 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
DANGER - Possibility of personal injury
WARNING - Possibility of equipment damage
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
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
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.

xi
DMS-100 Family NA100 Star Remote System XPM15 and up
CAUTION - Possibility of service interruption or degradation
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:
FP 3 Busy CTRL 0: Command request has been submitted.
FP 3 Busy CTRL 0: Command passed.
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.

DMS-100 Family NA100 Star Remote System XPM15 and up
1-1
1 Star Remote System introduction
Introduction to the Star Remote System
The Star Remote System is Nortel Network's new line concentrating module
(LCM) based remote product. The Star Remote System gives network
providers a cost-effective way to provide service to their customers. The Star
Remote System fills the need for a flexible remote that supports the following
line installations for DMS-100 networks:
• under 200 lines
• 640 to 1100 lines
The Star Remote System accepts up to 16 DS-1 host links at full 1152 line
configurations. The Star Remote System provides for traffic volumes of over
10 hundred-call seconds (CCS) and handles extended periods of Internet and
work-at-home calling. Up to 1152 lines can connect to the Star Remote
System. All services currently made available in Nortel Networks remote
product line are also available from the Star Remote System. The Star Remote
System includes the
• StarHub -The StarHub isan improvement in technology and performance
at a reduced cost. The Star Hub builds on the following Nortel Networks
products:
— Remote Line Concentrating Module (RLCM)
— outside plant module (OPM)
— outside plant access cabinet (OPAC)
• Star Module - The Star Module connects to the Star Hub through one or
two DS-1 links. Up to 16 Star Modules, each supporting 64 lines, connect
to the Star Hub. The Star Module exists in an outside or an inside cabinet
configuration. The operating company can install the outside cabinet on a
cement pad, wooden deck, or telephone pole. The operating company can
install the inside cabinet on a wall.
Star Hub introduction
The Star Hub functions like an RLCM in that software, user interface, and
functionality are the same. The Star Hub is a remote peripheral that connects

1-2 Star Remote System introduction
297-8353-550 Standard 05.01 March 2001
tothe SuperNode switchthrough aline trunkcontrolleror linegroup controller
with the NTMX77AA unified processor (LTC+ or LGC+) and the
NTSX05AA unified processor (LTC+ or LGC+) that is needed for ISDN
service support or remote cluster controller 2 (RCC2). The Star Hub
• supports up to 1152 lines
• has one control shelf configured to support up to 18 local line drawers or
up to 16 remote line drawers (RLD)
• provides for integrated services digital network (ISDN) lines when the
ISDN line drawer for remotes (ILD-R) is installed where a standard line
drawer is installed
• connects to the host office through 2 to 16 DS-1 links
• supports DMS-100 switch-based operations, administration, maintenance,
and provisioning (OAM&P)
• supports the 1-Meg Modem service
The Star Hub is in a standard DMS-100 indoor frame, which is called a Star
Remote Hub Equipment (SRHE) frame. The control shelf, frame supervisory
panel (FSP), and up to three line drawer shelves (each containing up to six line
drawers) are in the SRHE frame.
The Star Hub uses existing line cards through a maximum of 18 line drawers,
of which 16 can be Star Modules. The local line drawer in the Star Hub is a
standard DMS-100 line drawer that supports up to 64 lines.
The Star Hub supports the following types of lines:
• plain old telephone service (POTS)
• custom local area signaling service (CLASS)
• coin
• Meridian Business Set (MBS), also known as proprietary phone (P-phone)
• x digital subscriber line (xDSL) line card (xLC) for 1-Meg Modem
service
To support ISDN lines, up to six ILD-Rs can be installed.

Star Remote System introduction 1-3
DMS-100 Family NA100 Star Remote System XPM15 and up
Figure 1-1 Star Remote System configuration
DMS SuperNode
LTC+, LGC+, or
RCC2
Star Remote
System
DS30 or
DS512
2 to 16
DS-1 Host office
Remote site
Up to 1152
subscriber lines ISDN
line
drawer
Local
line
drawer
Up to 18 local line drawers or up
to 16 remote line drawers
POTS/MBS/1MM lines
ISDN lines
Up to five Star Remote Hubs
can be connected to the host
PM.
Star Module Star Module
POTS/MBS/1MM
lines
ISDN lines
POTS/MBS/1MM
lines
ISDN lines Up to 64
subscriber
lines for each
remote line
drawer
1 or 2 DS-1s for each Module
Star Hub
up to 6 ISDN line drawers
1-Meg Modem Service

1-4 Star Remote System introduction
297-8353-550 Standard 05.01 March 2001
Star Hub hardware components
The following components make up the Star Hub:
• standard DMS-100 frame
• control shelf
• frame supervisory panel
• three line drawer shelves that contain up to 18 POTS line drawers. Six of
the line drawers can be ILD-Rs, with a maximum of two ILD-Rs in each
shelf.
Star Hub software
The Star Hub uses the software Functional Group BAS00012 “Remotes
Generic” that provides
• voice and data service - The Star Hub supports POTS, CLASS, coin, and
Meridian Digital Centrex (MDC) voice and data from the DMS host office
to remote subscribers.
• central operations, administration, and maintenance (OAM) - The host
DMS MAP (maintenance and administration position) terminal supports
OAM for the Star Hub.
• emergency stand-alone (ESA) - The Star Hub supports warm ESA entry
and cold ESA exit. The Star Hub supports non-ISDN calls while in ESA.
When the Star Hub enters ESA, ISDN calls are released. Any attempts to
originate an ISDN call after ESA entry are ignored.
• intraswitching - This feature enables a remote peripheral to switch calls
internally, when both the calling and the called parties are served by the
same peripheral. It also saves transmission links to the host. The Star Hub
supports intraswitched calls.
• ISDN - The ILD-R using the NTBX27 line card, provides ISDN service
for the Star Hub local drawers. Each drawer supports up to 28 ISDN basic
rate interface (BRI) loops. There is a maximum of 168 ISDN lines if all
six ILD-Rs are provisioned.
• ringing - The Star Hub supports coded, frequency selective, superimposed,
distinctive, teen, and automatic number identification (ANI) and coin
functions.
The Star Hub also uses the software Functional Group HSTP0002 “HSTP
DMS ADSL Capability” for 1-Meg Modem service.

Star Remote System introduction 1-5
DMS-100 Family NA100 Star Remote System XPM15 and up
Star Module overview
The following components make up the Star Module:
• indoor or outside cabinet
• telephony subsystem (TSS) which contains
— card cage with the control card, line maintenance card, and power
converter and ringing card
— backplane
— up to 64 line cards
Software defines and considers the Star Module a drawer in the Star Hub and
not a stand-alone node. The Star Module mixes the functions of a line drawer
and a line concentrating device (LCD). The Star Module is a line drawer at a
remote site in a cabinet adapted for its location with appropriate connections
to power and to subscriber lines. The Star Hub can connect to up to 16 Star
Modules.
The Star Module
• supports up to 64 lines. The Star Module supports the same line types as
the Star Hub, which was listed earlier in this chapter, except 1MM lines.
• is a remote line drawer (RLD) in a Star Remote Module Equipment
(SRME) wall mounted cabinet or a Star Remote Module Outside (SRMO)
cabinet
• supports up to 28 ISDN lines
• connects to the Star Hub using one or two DS-1 links
• uses DMS-100 switch-based OAM&P
• supports only coded ringing
• does not support 1 Mega Modem (1MM) drawers
Advantages of the Star Remote System
The Star Remote System has the following advantages. The Star Remote
System
• supports line growth from 64 lines to 1152 lines in increments of 64 lines,
with no need for equipment or backplane changes
• provides support for 1152 lines in one frame and requires a smaller
footprint in the remote site
• makes available a high-traffic performance model for a remote. The Star
Hub provides 10 CCS to support Internet and telecommuter bandwidth
needs. The Star Module provides for traffic levels up to 20 CCS for each
line.

1-6 Star Remote System introduction
297-8353-550 Standard 05.01 March 2001
• uses standard DMS line cards
• reduces the number of control cards required in a control shelf
• provides an update for the reliable RLCM platform at a lower cost
• provides a mix of POTS and ISDN drawers for DMS-100 peripherals that
are located in remote areas
• supports extended distance capability and 13 msec round-trip signaling
delay, when Star Modules are located up to 500 miles from the DMS-100
switch
• uses accepted DMS-100 hardware such as the NTMX81 DS-1 interface
cards and the NT6X53AA power converters in the Star Hub
• provides for a remote-off-remote configuration when the Star Remote
System connects to a Remote Switching Center-SONET