General DataComm SpectraComm SRM-6 User manual

The Best Connections in the Business
General DataComm
6SHFWUD&RPP#65009#
Subrate Multiplexer
Installation & Operation Manual
076R176-000
Issue 1
June 2005

Copyright
©2005 General DataComm, Inc. ALL RIGHTS RESERVED.
This publication and the software it describes contain proprietary and confidential information. No part of this
document may becopied, photocopied, reproduced, translated or reduced to any electronic or machine-readable
format without prior written permission of General DataComm,Inc. The information in this document is subject
to change without notice. General DataComm assumes no responsibility for any damages arising from the use
of this document, including but not limited to, lost revenue, lost data, claims by third parties, or other damages.
If you have comments or suggestions concerning this manual, please contact:
General DataComm, Inc.
Technical Publications
6 Rubber Avenue
Naugatuck, Connecticut USA 06770
Telephone: [phone]
Trademarks
All brand or product names are trademarks or registered trademarks of their respective companies or
organizations.
Documentation
Revision History for P/N 076R176-000
Related Publications
-REV is the hardware revision (-000,-001, etc.)
-VREF is the most current software version (-V600 is Version 6.0.0.)
In addition to the publications listed above, always read Release Notes supplied with your products.
Issue Number Date Description of Change
1 June 2005 Initial Release
Description Part Number
SpectraComm/UAS Shelf & Enclosure Installation and Operation Manual 010R302-REV
SpectraComm 2000 Shelf Installation and Operation Manual 010R358-REV
SpectraComm Manager Card Installation & Operation Manual 048R303-REV
SpectraComm V.F28.8/336.Modem Installation & Operation Manual 060R112-REV
SpectraComm 521A/S DDS DSU Installation & Operation Manual 076R152-REV
SpectraComm 553 T1 DSU Installation & Operation Manual 076R155-REV

076R176-000 SC SRM-6 Multiplexer i
Issue 1 Installation & Operation Manual
Table of Contents
Preface
Compliance: Pending............................................................................................................... iv
Support Services and Training.................................................................................................. v
Corporate Client Services....................................................................................................v
Factory Direct Support & Repair ........................................................................................v
Contact Information ............................................................................................................v
Chapter 1: Introduction and Specifications
SpectraComm SRM-6 Overview........................................................................................... 1-1
Intended Use.....................................................................................................................1-1
Features & Benefits..........................................................................................................1-1
Management Features.......................................................................................................1-3
Diagnostics.......................................................................................................................1-3
Maintenance .....................................................................................................................1-3
Alarms ..............................................................................................................................1-3
Timing ..............................................................................................................................1-4
SRM-6 Applications.........................................................................................................1-5
Technical Specifications........................................................................................................ 1-7
Chapter 2: Installation and Setup
Setting Card Options ........................................................................................................2-3
Installation Guidelines......................................................................................................2-4
Cable Connections............................................................................................................2-5
Connector Pinouts ............................................................................................................2-6
Front Panel Controls and Indicators...............................................................................2-10
Accessing the Shelf.............................................................................................................. 2-11
Configuring a VT-100 Terminal Connection.................................................................2-11
Configuring a Telnet Connection...................................................................................2-12
Chapter 3: SRM-6 Operation & Diagnostics
Basic Procedures ..............................................................................................................3-1
SRM-6 Configuration Menu.................................................................................................. 3-2
Aggregate Interface Configuration Screen.......................................................................3-3
Channel Interface Configuration Screen..........................................................................3-4
Aggregate Alarm Configuration Screen...........................................................................3-5
Channel Alarm Mask Configuration Screens...................................................................3-6
SRM-6 Diagnostics................................................................................................................ 3-7
SRM-6 Alarm Monitor........................................................................................................... 3-9
Interface Status Screen......................................................................................................... 3-10
SRM-6 Maintenance Screen ................................................................................................ 3-11

ii SC SRM-6 Multiplexer 076R176-000
Installation & Operation Manual Issue 1
Table of Contents
Firmware Download Menu............................................................................................3-12

076R176-000 SC SRM-6 Multiplexer iii
Issue 1 Installation & Operation Manual
Preface
Scope
This manual describes how to install and operate the GDC SpectraComm SRM-6 multiplexer. The
information contained in this manual has been carefully checked and is believed to be entirely
reliable. However, as General DataComm improves the reliability, function, and design of their
products, is possible that information may not be current. Contact General DataComm if you
require updated information for this or any other General DataComm product.
General DataComm, Inc.
Technical Publications
6 Rubber Avenue
Naugatuck, Connecticut, 06770 USA
Tel: [phone]
Safety and Precautions
The CAUTION, WARNING, and DANGER statements that appear throughout this manual are
intended to provide critical information for the safety of both the service engineer and operator,and
enhance equipment reliability. The definitions and symbols for such statements comply with ANSI
Z535.2, American National Standard for Environmental and Facility Safety Signs, and ANSI
Z535.4, Product Safety Signs and Labels, issued by the American National Standards Institute.
CAUTION indicates conditions or practices which can cause damage to equipment or loss
of data.
WARNING indicates a potentially hazardous situation which, if not avoided, may result in
minor to moderate injury. It may also be used to alert against unsafe practices
DANGER indicates an imminently hazardous situation which, if not avoided, will result in
death or serious injury.

Preface Compliance: Pending
iv SCSRM-6Multiplexer 076R176-000
Installation & Operation Manual Issue 1
Safety Guidelines
Under proper conditions, this unit will operate reliably and safely in your network. If any
component is improperly handled or installed, equipment failure or personnel hazard may occur.
Use caution and common sense when installing network wires. Use the following guidelines,
especially when unsafe conditions exist or when potentially hazardous voltages are present:
• Repairs must be performed by qualified service personnel only.
• To reduce the risk of electrical shock, do not operate equipment with the cover removed.
• Never install network jacks in a wet location unless the jack is designed for that location.
• Never touch uninsulated network wires or terminals unless the network line is disconnected
at the network interface.
• Never install network wiring during an electrical storm.
Antistatic Precautions
Electrostatic discharge (ESD) results from the buildup of static electricity and can cause computer
components to fail. ESD occurs when a person whose body contains a static buildup touches a
computer component. This product card may contain static-sensitive devices that are easily
damaged. Proper handling, grounding and precautionary ESD measures are essential. Keep parts
and cards in antistatic packaging during transport or when not in use. When handling always use
antistatic floorpads, workbenchpads and an antistatic wrist strap connected to a grounded
equipment frame or chassis. If a wrist strap is not available, periodically touch an unpainted metal
surface on the equipment. Never use a conductive tool, like a screw driver or paper clip to set
switches.
Compliance: Pending
Part 15 Compliance (Pending)
This device complies with Part 15 of the FCC rules. Operation is subject to the following two
conditions:
1. This device may not cause harmful interference and
2. This device must accept any interference received, including interference that may cause
undesired operation.
Industry Canada Notification
Electromagnetic Compatibility
This Class A digital apparatus complies with Canadian ICES-003.
Avis D’industrie Canada
La Compatibilité d’ Eléctro-magnetique
Cet appareil numerique de la classe A est conforme a la norme NMB-003 du Canada.

Preface Support Services and Training
076R176-000 SC SRM-6 Multiplexer v
Issue 1 Installation & Operation Manual
Support Services and Training
GeneralDataCommofferstwocomprehensivecustomersupportorganizationsdedicatedtopre-and
post-sale support services and training for GDC products. Corporate Client Services and Factory-
Direct Support & Repair assist customers throughout the world in the installation, management,
maintenance and repair of GDC equipment. Located at GDC’s corporate facility in Naugatuck,
Connecticut USA, these customer support organizations work to ensure that customers get
maximum return on their investment through cost-effective and timely product support.
Corporate Client Services
Corporate Client Services is a technical support and services group that is available to GDC
customers throughout the world for network service and support of their GDC products. Customers
get thereliable supportand training required for installation, management and maintenance of GDC
equipment in their global data communication networks. Training courses are available at GDC
corporate headquarters in Naugatuck, Connecticut, as well as at customer sites.
Factory Direct Support & Repair
GDC provides regularand warranty repair services through Factory Direct Support & Repair at its
U.S. headquarters in Naugatuck, Connecticut. This customer support organization repairs and
refurbishes GDC products, backed by the same engineering, documentation and support staff used
to build and test the original product. Every product received for repair at Factory Direct Support
& Repair is processed using the test fixtures and procedures specifically designed to confirm the
functionality of all features and configurations available in the product.
As part of GDC’s Factory Direct program, all product repairs incorporate the most recent changes
and enhancements from GDC Engineering departments, assuring optimal performance when the
customer puts the product back into service. Only GDC’s Factory Direct Support & Repair can
provide this added value.
Contact Information
General DataComm, Inc.
6 Rubber Avenue
Naugatuck, Connecticut 06770 USA
Attention: Corporate Client Services
Telephones: 1 800 523-1737
1 203 729-0271
Fax: [phone]
Email: client[email protected]m
General DataComm, Inc.
6 Rubber Avenue
Naugatuck, Connecticut 06770 USA
Attention: Factory Direct Support & Repair
Telephones: 1 800 523-1737
1 203 729-0271
Fax: [phone]
Email: [e-mail]
Hours of Operation:
Monday - Friday 8:30 a.m. - 5:00 p.m. EST
(excluding holidays)
http://www.gdc.com

Preface Support Services and Training
vi SCSRM-6Multiplexer 076R176-000
Installation & Operation Manual Issue 1

076R176-000 SCSRM-6Multiplexer 1-1
Issue 1 Installation & Operation Manual
Chapter 1: Introduction and
Specifications
SpectraComm SRM-6 Overview
The SpectraComm SRM-6 is a six-channel Time-Division Subrate Multiplexer that interfaces with
a SpectraComm V.F28.8/33.6 modem, aSpectraComm 521A/S DDS DSU, a SpectraComm 553 T1
DSU, or any RS-232 or RS-530 DCE device in point-to-point applications. A SpectraComm
Manager (SCM) card provides the Telnet and Ethernet connections. Field personnel can attach a
VT100/ASCII terminal to the SCM craft port to provision the SRM-6, monitor alarms and status,
and perform diagnostics and maintenance. The SCM is the SNMP proxy agent for the SRM-6 and
the modem/DSU, allowing alarm traps sent to a trap manager.
Intended Use
The SRM-6 installs in one slot of a SC 2000 low density shelf or a SC 5000 high density shelf. The
SRM-6 front panel provides LEDs that indicate operating status. The mass termination connector
at the front panel is cabled to an accessory panel which provides six EIA-232-E interfaces through
DB-25 Female connectors wired as DCE. The accessory panel mounts onto the rear of the SC 2000
shelf or can be installed at the front of the telco rack. Refer to Figure 2-2 and accompanying
paragraphs for complete front and rear panel connection instructions.
Features & Benefits
• Provides efficient, cost-effective network access for subrate applications by reducing the need
for additional communication lines and equipment.
• Combines synchronous and asynchronous data from up to six subrate users into one TDM
payload.
• Allows users’ mixed data rates in one TDM payload.
• Built-in diagnostic aggregate loopback (toward DTE)
• Alarm monitor and SNMP trap generation
• Telnet, LAN, and ASCII/VT100 craft connections
via the SCM
• Multi-level password protection for craft or Telnet management access; inactivity timers.
• Front Panel LEDs indicate operating status
• TFTP download for firmware upgrades
• Power requirements are less than 6 Watts per card.

Introduction and Specifications SpectraComm SRM-6 Overview
1-2 SC SRM-6 Multiplexer 076R176-000
Installation & Operation Manual Issue 1
Figure 1-1 Typical Installation and Front Panel Views of the SRM-6 System
Note For more information on the SCM, SpectraComm shelf systems or any companion product card, refer to the
corresponding manuals listed inside the front cover of this document.
V.F 28.8
LL
RL DL
SEL
TXD RXD
RTS CTS
DCD GD
TM ALM
DTR OH
NR ND
ADV
ST
SCM
CTRL
SD RD SD RD
NR ND
TM ALM
INS ON
L
A N
W
A N
SRM-6
INS
TM ON
AM
SYNC ET
1 2 3 4 5
6
SD RD
SC2000 Shelf 1
SC2000 Shelf 2
Management
Link
NOTE:
ForVF (digital) networks, the SC V.F 28.8 modem installs in slot 2 (shown).
For DDS networks, the SC 521A DSU installs in slot 2.
ForT1 networks, the SC 553 DSU installs in slot 2.
SCM
(Slot 1) SC V.f28.8/33.6 MODEM
(Slot 2)
SRM-6
(Slot 4)
Slot 3
(Not Used)
SRM-6
INS
TM ON AM
SYNC ET
1
2
3
4
5
6
SD RD
SCM
CTRL
SD RD
SD RD
NR ND
TM ALM
INS ON
NR ND
L
A
N
W
A
N
V.F 28.8
LL
RL
DL
SEL
TXD RXD
RTS CTS
DCD GD
TM ALM
DTR OH
NR ND
ADV
ST
521A
ST
LT
RL
DL
INS ON
SD RD
RS CO
ICC NC
TMG RSP
TYPICAL INSTALLATION
(Shown with SC V.F28.8/33.6 Modem in Slot 2)
FRONT PANEL
VIEWS Slot 1
SCM Slot 4 SRM-6
Slot 2
Modem,
DDS DSU
or T1 DSU
L
I
N
E
I
N
O
U
T
M
O
N
RSP
SD RD
EQ
BPV AIS
OOF NS
T1
CH
RL
553