General DataComm OCM-2000 User manual

The Best Connections in the Business
General DataComm
2&0#6\VWHPV
Office Communication Manager
Installation & Operation Manual
OCM-2000
OCM-1000
036R340-000
Issue 16
November 2014

Copyright
©2014 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 - GDC P/N 036R340-000
Selected Related Publications
Issue Date Description of Change
9 February 1997 Updates and added components
10 November 1997 Added hardware components amd features.
11 February 1999 Added hardware components amd features.
12 November 2008 Minor corrections and clarification of CCM versions.
13 May 2013 Clarifications and minor corrections; updated publication format.
14/15 August/November2013 Clarifications and updates.
16 November 2014 Clarifications and updates.
Document Description Document Number
OCM System Installation and Operation Manual (OCM-2000, OCM-1000) 036R340-000
OCM-1000 System Release Notes 036R914-V300 or later
TMS 3000 System Installation & Operation Manual 036R303-000
GTS Software Operation Manual Manual 036R603-V500 or later
GTS Software Release Notes 036R903-V500 or later
OCM*TMS Maintenance Console User Guide Manual 036R611-000

036R340-000 Office Connunications Manager OCM-1000/OCM-2000 i
Issue 16 Installation & Operation
Table of Contents
Preface
Safety Information ................................................................................................................... vi
Compliance ............................................................................................................................. vii
United Kingdom...............................................................................................................viii
Support Services and Training................................................................................................. ix
Corporate Client Services...................................................................................................ix
Factory Direct Support & Repair .......................................................................................ix
Contact Information ...........................................................................................................ix
Chapter 1: System Description
Overview................................................................................................................................ 1-1
OCM-2000 Overview.......................................................................................................1-1
OCM-1000 Overview.......................................................................................................1-1
Common Features.............................................................................................................1-2
OCM-2000 Special Features ............................................................................................1-3
OCM-1000 Special Features ............................................................................................1-3
The OCM Shelf...................................................................................................................... 1-4
Shelf Zones.......................................................................................................................1-4
OCM Cabling (Typical) ...................................................................................................1-5
OCM Management................................................................................................................. 1-6
Power-Up Self-Test..........................................................................................................1-6
Management & Control....................................................................................................1-6
Equipment Lists ..................................................................................................................... 1-7
Chapter 2: Shelf Installation
Unpacking.........................................................................................................................2-1
Location............................................................................................................................2-1
Load Number....................................................................................................................2-1
Cooling Requirements............................................................................................................ 2-2
Power Supplies.................................................................................................................2-2
Cabinet Types...................................................................................................................2-2
Fan Tray Assemblies........................................................................................................2-2
Air Baffles ........................................................................................................................2-2
Shelf Illustrations..............................................................................................................2-4
Grounding .............................................................................................................................. 2-7
Safety................................................................................................................................2-7
EMI (Electromagnetic Interference).................................................................................2-8
Telephone Signaling.........................................................................................................2-8
Tying Signal Ground to Chassis Ground..........................................................................2-8
Shelf Installation .................................................................................................................... 2-9

ii Office Connunications Manager OCM-1000/OCM-2000 036R340-000
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Table of Contents
Mounting Brackets.........................................................................................................2-11
Connector Panels............................................................................................................2-11
Bus Termination Cards ..................................................................................................2-11
Shelf Address Jumper (J50)........................................................................................... 2-11
Expansion Shelf (Dual Shelf Redundancy) ...................................................................2-11
Power Supplies...............................................................................................................2-13
Station Battery................................................................................................................2-14
Chapter 3: Common Control Module
CCM Redundancy............................................................................................................ 3-2
CCM Options................................................................................................................... 3-2
CCM Installation.............................................................................................................. 3-3
Installation Restrictions....................................................................................................3-3
Front Panel............................................................................................................................. 3-7
Technical Characteristics....................................................................................................... 3-8
CCM-6, CCM-7 Characteristics ...................................................................................... 3-8
CCM-10 Characteristics................................................................................................... 3-9
Chapter 4: Line Interface Modules
Redundancy Restrictions.................................................................................................. 4-1
Network Line Interface Modules........................................................................................... 4-2
Signaling .......................................................................................................................... 4-2
Network LIM Options...................................................................................................... 4-3
LIM Installation ............................................................................................................... 4-3
T1 and CSU T1 Network LIM Interface.......................................................................... 4-5
E1 Network LIM Interface............................................................................................... 4-8
Network LIM Front Panel..............................................................................................4-10
V.11 and V.35 LIM ............................................................................................................. 4-11
Basecard Options ...........................................................................................................4-11
V.11/V.35 Front Panel ...................................................................................................4-13
Technical Characteristics...............................................................................................4-14
Subrate LIM......................................................................................................................... 4-16
Application Example......................................................................................................4-16
Basecard Options ...........................................................................................................4-17
Subrate Front Panel........................................................................................................ 4-19
Technical Characteristics............................................................................................... 4-20
Chapter 5: Data Channel Modules
Options............................................................................................................................. 5-1
Module Installation.......................................................................................................... 5-2

036R340-000 Office Connunications Manager OCM-1000/OCM-2000 iii
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Table of Contents
Installation Restrictions....................................................................................................5-2
Data Channel Front Panel.................................................................................................5-4
Technical Specifications...................................................................................................5-5
Dual Data Channel Module Pinouts.................................................................................5-7
High Speed Data Channel Module Pinouts....................................................................5-11
Chapter 6: Voice Modules (VCMs & DPVs)
VCM Overview...................................................................................................................... 6-1
VCM Voice Compression ................................................................................................6-2
VCM Level Adjustment...................................................................................................6-2
VCM Echo Cancellation...................................................................................................6-2
VCM Options ...................................................................................................................6-3
VCM Module Installation.................................................................................................6-3
VCM Installation Restrictions..........................................................................................6-3
VCM Front Panel .............................................................................................................6-7
VCM Technical Specifications.........................................................................................6-8
DPV Overview..................................................................................................................... 6-12
DPV Configuration, Status and Diagnostics..................................................................6-13
DPV Signal Paths ...........................................................................................................6-13
DPV Module Restrictions...............................................................................................6-16
DPV Options ..................................................................................................................6-17
DPV Front Panel.............................................................................................................6-19
DPV E&M Signaling......................................................................................................6-20
DPV Application Notes..................................................................................................6-23
Chapter 7: Alarm Card
Basecard Options..............................................................................................................7-2
Alarm Card Installation....................................................................................................7-2
Alarm Card Front Panel....................................................................................................7-4
Technical Characteristics..................................................................................................7-5
Appendix A:Glossary of Terms

iv Office Connunications Manager OCM-1000/OCM-2000 036R340-000
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Table of Contents

036R340-000 Office Connunications Manager OCM-1000/OCM-2000 v
Issue 16 Installation & Operation
Preface
Scope of this Manual
A GDC Office Communications Manager System (OCM) is factory configured to your network
requirements when ordered from the factory. The OCM-2000 or the OCM-1000 is tested, and ready
to operate after installation. This manual describes the installation and operation of OCM modules,
power supplies, and shelf.
The information contained in this manual has been carefully checked and is believed to be entirely
reliable. This information is intended for installers, service technicians and users and assumes a
working knowledge in the design, planning and management of IP networks.
As General DataComm improves the reliability, function, and design of their products, it is possible
that the information in this document may not be current. Contact General DataComm, your sales
representative or point your browser to http:\\www.gdc.com for the latest information on
this and other General DataComm products.
General DataComm, Inc.
6 Rubber Avenue
Naugatuck, Connecticut 06770 U.S.A.
Tel: [phone] Toll Free: 1 800 523-1737
Organization of Chapters
This manual is divided into the following chapters. When using the digital version of this manual,
click on any link (shown in blue text) to jump to that section.
Chapter 1, System Description
Chapter 2, Shelf Installation
Chapter 3, Common Control Module
Chapter 3, Common Control Module
Chapter 5, Data Channel Modules
Chapter 6, Voice Modules (VCMs & DPVs)
Chapter 7, Alarm Card
Appendix A, Glossary of Terms

Preface Safety Information
vi Office Connunications Manager OCM-1000/OCM-2000 036R340-000
Installation & Operation Issue 16
Safety Information
This manual should be read in its entirety and all procedures completely understood before
installing or operating the unit, including all notes, cautions and warnings (examples below). 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.
These statements also enhance equipment reliability. The following definitions and symbols for
CAUTION, WARNING, and DANGER as they are used 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. .
Safety Guidelines
• Always use caution and common sense, especially when unsafe conditions or 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 telephone jacks in a wet location unless the jack is designed for that location.
• Never touch uninsulated telephone wires or terminals unless the telephone line is
disconnected at the network interface.
• Never install telephone wiring during an electrical storm.
Antistatic Precautions
This product may contain static-sensitive devices that are easily damaged by ESD (electrostatic
discharge). ESD occurs when a person whose body has built up static electricity touches a computer
component. ESD can cause computer components to fail. Take proper handling, grounding and
precautionary ESD measures when installing parts or cards. Keep parts and cards in antistatic
packaging when not in use or during transport. If possible, use antistatic pads on floor and
workbench. When handling components, always use 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 screwdriver or a
paper clip, to set switches.
Note Indicates a note. It is something you should be particularly aware of; something not readily apparent.
A note is typically used as a suggestion.
Important Indicates an emphasized note. It is something you should be particularly aware of; something not readily
apparent. Important is typically used to prevent equipment damage.
CAUTION indicates conditions or practices that can cause damage to equipment or loss of
data.
WARNING indicates an imminently 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
036R340-000 Office Connunications Manager OCM-1000/OCM-2000 vii
Issue 16 Installation & Operation
Compliance
FCC Part 68 Compliance
Connection of data communications equipment to the public telephone network is regulated by
FCC Rules and Regulations. This equipment complies with Part 68 of these regulations which
require all of the following.
All connections to the telephone network must be made using standard plugs and telephone
company provided jacks or equivalent. Connection of this equipment to party lines and coin
telephones is prohibited. A label on the back of the front panel of data communications equipment
and on the underside or rear panel of other equipment provides the FCC Registration number and
the Ringer Equivalence Number (REN) for the unit. If requested, give this information to the
telephone company.
If the unit causes harm to the telephone network, the telephone company may discontinue your
service temporarily and if possible, you will be notified in advance. If advance notice is not
practical, you willbenotifiedassoonaspossibleandwillbeadvisedofyourrightto filea complaint
with the FCC. The telephone company may change its communication facilities, equipment,
operations and procedures where reasonably required for operation. If so, the telephone company
will notify you in writing. You must notify the telephone company before disconnecting equipment
from 1.544 Mbps digital service. All repairs or modifications to the equipment must be performed
by General DataComm. Any other repair or modification by a user voids the FCC registration and
the warranty.
Canada DOC Notification
The Canadian Department of Communications label identifies certified equipment. This
certification means that the equipment meets certain telecommunications network protective,
operational, and safety requirements. The Department does not guarantee the equipment will
operate to the user's satisfaction.
Before installing this equipment, users should ensure that it is permissible to be connected to the
facilities of the local telecommunications company. The equipment must also be installed using an
acceptable method of connection. In some cases, the company's inside wiring associated with a
single line individual service may be extended by means of a certified connector assembly
(telephone extension cord). The customer should be aware that compliance with the above
conditions may not prevent degradation of service in some situations.
Repairs to certified equipment should be made by an authorized Canadian maintenance facility
designated by the supplier. Any repairs or alterations made by the user to this equipment, or
equipment malfunctions, may give the telecommunications company cause to request the user to
disconnect the equipment.
Users should ensure for their own protection that the electrical ground connections of the power
utility, telephone lines, and internal metallic water pipe system, if present, are connected together.
This precaution may be particularly important in rural areas. Users should not attempt to make such
connections themselves, but should contact the appropriate electric inspection authority, or
electrician, as appropriate.
Deutschland
Installations Anweisungen: Installieren Sie die Telefonleitungen nicht während eines Gewitters.
Installieren Sie die Telefonleitungen nicht in einem feuchten Raum, auβer die Dose entspricht den
Vorschriften für Feuchträume. Berühren Sie unisolierte Telefonleitungen oder Einrichtungen nicht,
auβer diese sind vom Telefonnetz getrennt. Vorsicht bei der Installierung oder Änderung von
Telefonleitungen. Achtung: Es gibt keine durch den Benutzer zu wartende Teile im Gerät. Wartung
darf nur durch qualifiziertes Personal erfolgen.

Preface Compliance
viii Office Connunications Manager OCM-1000/OCM-2000 036R340-000
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United Kingdom
The 4WE&M is approved for all Rx base level gain pad settings up to +2dB. The 4WE&M is not
approved for Rx base level gain pad settings above +2dB, and higher gain settings must not be
selected for use within the United Kingdom.
FCC Registration number: AG6USA-74711-XD-N
Registration Name Port ID SOC FIC USOC
Original T1 6.0N 04DU9-BN n/a
04DU9-DN
04DU9-1KN
04DU9-1ZN
Original FXS 9.0F OL13B RJ11C
Modification T1 NLIM 6.0Y 04DU9-BN RJ48C
04DU9-DN
04DU9-1KN
04DU9-1ZN
Modification ADPCM FXO 0.8B/9.0F O2LS2 RJ11C
Modification ADPCM E&M 9.0F TL11M, E RJ2EX; RJ2FX
Add Model VLBRV FXS 9.0F OL13B RJ11C
Add Model VLBRV FXO 0.8B/9/0F O2LS2 RJ11C
Add Model VLBRV E&M 9.0F TL11M, E RJ2EX; RJ2FX
Add Model CELP FXS 9.0F OL13B RJ11C
Add Model CELP FXO 0.8B/9.0F O2LS2 RJ11C
Add Model CELP E&M 9.0F TL11M, E RJ2EX; RJ2FX
Modification IMBE DPV FXO 1.7B/9.0F O2LS2 RJ11C
Modification IMBE DPV FXS 9.0F OL13B RJ11B
Modification IMBE DPV E&M 9.0F TL11M, E J2FX
Modification T1 CSU 6.0Y 04DU9-BN RJ48C
04DU9-DN
04DU9-1KN
04DU9-1ZN
Original T1 6.0N 04DU9-BN n/a

Preface Support Services and Training
036R340-000 Office Connunications Manager OCM-1000/OCM-2000 ix
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Support Services and Training
GeneralDataCommofferstwocomprehensive customersupport organizationsdedicatedtopre-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 support andtraining required for installation, managementand 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] or 1 203 729-3014
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
x Office Connunications Manager OCM-1000/OCM-2000 036R340-000
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036R340-000 Office Connunications Manager OCM-1000/OCM-2000 1-1
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Chapter 1: System Description
Overview
Advances in technology and decentralized data processing have allowed companies to improve
business efficiency and performance by automating key functions and introducing new electronic
applications at the branch level. As a result, branch offices need to access the backbone
communications network in order to electronically exchange information. Today's networks need
to integrate the communications requirements of every business location and to support high speed
connectivity (often with 56/64 kbps or more bandwidth) between the branch office and the
backbone network.
General DataComm's OCM (Office Communications Manager) is a powerful, cost-effective
networking platform that extends the backbone network's capabilities to remote branch office
locations. Supporting voice, fax, data, video, image and LAN (Local Area Network) applications,
the OCM can easily be tailored to any organization's network requirements.
The OCM offers connectivity to a variety of digital carrier services, allowing you to select the one
providing the best performance/cost ratio in each location. These service options include: 56/64K
leased line services, fractional T1/E1 services (groomed Nx56/64K services), and T1/E1 services.
The OCM is ideal for branch office locations. Its modular architecture makes it easy to install and
maintain. To guarantee reliable performance, the OCM offers optional, fully redundant power
supplies, common logic and line interface modules (LIMs).
OCM-2000 Overview
At backbonenetwork locations, the OCM-2000 connects to GDC's Transport Management System
(TMS) product family. The OCM-2000 is fully channel compatible with the TMS, and all OCM
management functions, including configuration, monitoring, diagnostics, fault management, and
network restoral, are performed from the central TMS controller (s). The TMS architecture allows
the connection of up to 248 OCMs to each TMS device and up to 10,000 OCM-2000 devices in a
network.
OCM-1000 Overview
The OCM-1000 is a networking multiplexer. It supports fax, data, video, image and LAN (Local
Area Network) applications. The OCM-1000 offers connectivity to a variety of carrier services,
allowing you to select the best configuration for your network. These service options include 9.6 to
28.8 kbps analog services, 56/64 kbps leased line services, fractional T1/E1 services (groomed
Nx56/64 kbps services), and T1/E1 services. The OCM-1000 can be upgraded to an OCM-2000 by
simply swapping a common logic module.

System Description Overview
1-2 Office Connunications Manager OCM-1000/OCM-2000 036R340-000
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OCM System Description
The OCM system is a platform that combines internetworking and multiplexer functions. A basic
OCM would consist of the shelf (MS), one or more power supplies, a single Common Control
Module (CCM), a single Line Interface Module (LIM), and multiple Data Channel Modules
(DCM). An expansion shelf may be added to provide additional slots.
The modules used in the OCM are interchangeable (with certain limitations). Each module is fully
described in its own chapter. This document describes the OCM-1000 and OCM-2000 systems.
There are many features in common; difference between the systems are noted.
Common Features
The following set of features are common to both the OCM-1000 and OCM-2000 systems:
• OCM system combines voice, data and LAN traffic.
• Housed in a 16-slot 19" shelf that maybe mounted in a 19" open rack or standard cabinet. Shelf
may be expanded to 32 slots by adding a second shelf.
• Line interface, data, voice and power supply modules plug in from the front of the shelf. No
connectors have to be removed, as all connections are made from the rear of the shelf.
• Line interfaces are T1/DSX-1 and T1 CSU, E1, V.11, V.35. All LIMs can be configured to be
redundant. Available aggregate rates range from 56k to 2.048 Mbps.
• Supports two aggregates through one or two Line Interface Modules (LIMs).
• Data channel interfaces are EIA/TIA-232-E, V.35, EIA-422, and EIA-423. Supports, through
network management, operation of V.54 controls to control Remote Loopback and Local
Loopback of connected modems, and to acknowledge Test Mode Indication on a modem tail
circuit.
• Voice channel interfaces are 2W FXO and FXS, and 2W or 4W E&M.
• Programmable RTS (Request-to-Send) to CTS (Clear-to-Send) delays at local OCM channels.
• Safety Compliance - OCM in a domestic shelf is recognized to UL 1459 and certified to CSA
C 22.2 # 225 (Telco Equipment Safety). OCM in an international version shelf meets EN60950
(Safety of Information Technology Equipment) and EN41003 (Safety of Equipment for
Connection to the Telecom Network).
• EMC (Electromagnetic Compatibility) Compliance - OCM in a domestic shelf meets FCC Part
15 class A. An OCM in an international shelf meets EN55022 class A.
• Telecom Approval - Refer to the Technical Characteristics table in each module chapter.
• All plug in circuit card assemblies are hot swappable. Cards may be installed or removed
without limitation with power applied.
• The power supply modules are hot swappable, however the power ON / OFF switch located on
the front panel of the module should be in the OFF position before installation or removal. This
assures against interference with the active supply.
• Dual Data Channel cards support Async, Sync & Isoc data rates from 1200 to 38.4Kbps (300,
600, 1200, 1600, 1800, 2000, 2400, 3200, 3600, 4000, 4800, 6400, 7200, 8000, 9600, 12,000,
14000, 14400, 16000, 19200, 24000, 28000, 28800, 32000, 36000 and 38400 bps).

System Description Overview
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• High Speed Data Channel cards support Async, Sync, & Isoc data rates as follows:
• Sync: Any rate listed below.
• Async: Any rate listed below, up to 38.4K
• Isoc: Any rate listed below, up to 64K.
300, 600, 1200, 1600, 1800, 2000, 2400, 3200, 3600, 4000, 4800, 6400, 7200, 8000,
9600, 12,000, 14,000, 14,400, 16,000, 19,200, 24,000, 28,000, 28,800, 32,000, 36,000,
38,400, 48,000, 56,000, 57,600, 64,000, 72,000, 76,800, 96,000, 112,000, 115,200,
128,000, 144,000, 153,600, 192,000, 224,000, 230,400, 256,000, 288,000, 320,000,
384,000. 448,000, 460,800, 512,000, 576,000, 640,000, 704,000, 768.000, 832,000,
960.000, 1,024,000, 1,088,000, 1,152,000, 1,216,000, 1,280,000, 1,344,000, 1,408,000,
1,472,000, 1,536,000, 1,664,000, 1,660,000, 1,728,000, 1,792,000, 1,856,000, 1,920,000
• Inband Management Bandwidth is the sum of the SYNC Rate and the Overhead Rate. User
selectable rates are:
• SYNC: 200, 400, 800, 1600 bps (default is 200 bps)
• OVERHEAD: 400, 1200, 4800, 9600, 19200 bps (default is 9600 bps)
• Optional Maintenance Console - In the event of aggregate link outage, a PC equipped with
"Hyperterminal" or equivalent software package with VT-100 terminal emulation features can
be plugged into the remote OCM to validate status and perform local diagnostics. This optional
feature allows support (but not configuration) of Local Channel Loopback, Local Aggregate
Loopback including and excluding Line Interface Module, as well as local Alarm reporting.
OCM-2000 Special Features
In addition to the common features listed above, the OCM-2000 provides the following special
features:
• OCM-2000 acts as a feeder multiplexer to the TMS-3000 using CDA or IAC.
• CDA/T1/E1 allows termination of up to 32 OCM-2000 tail nodes.
• The OCM-2000 communicates to the TMS Controller via a supervisory communication path.
Configuration is downloaded from the TMS Controller. OCM supports TMS status, alarms and
diagnostics.
• TMS circuits originating at OCM-2000 channels pass through CDA subaggregates to terminate
in TMS channels or other OCM channels.
OCM-1000 Special Features
In addition to the common features listed above, the OCM-1000 provides the following special
features:
• OCM-1000 acts as a point-to-point, point-to-multipoint access multiplexer, independent of a
TMS network.
• Supports subrate LIM at rates of 9.6 to 64 kbps.
• Controlled by PC-based controller, via OCM Management Software (OMS).

System Description The OCM Shelf
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The OCM Shelf
The OCM shelf is constructed of formed sheet metal components measuring 7 inches (178 mm)
high by 17.5 inches (445 mm) wide by 11.5 inches (292 mm) deep. Other features are:
• 19-inch or 23-inch racks or cabinets can be accommodated by reversible mounting brackets.
• Center-of-gravity mounting is accomplished with several locations of mounting brackets
• Each shelf accepts one or two power supplies.
• Sixteen module slots and two power supply slots per shelf.
• An expansion shelf provides an extra two power supply slots and sixteen module slots.
• A shelf address jumper sets the address for each shelf in a two-shelf system.
• The rear panel is factory configured with connector panels (consisting of dual 8-pin modular
jacks in Zone 1 and DB-25 connectors in Zone 3 (See Figure 1-1 on page 1-5). The rear of the
OCM shelf with typical cabling is shown in Figure 1-2 on page 1-12.
• Plug-in power supply modules are available in the following voltages:
• 100/120 VAC (47-63 Hz)
• 220/240 VAC (47-63 Hz)
• -48 and -60 VDC (station battery) version (designed to meet Conducted Emissions
requirements in Bellcore 1089)
• Shelf power supply front panel provides: Power On switch, and Power On (green) and Failure
(red) indicator.
Note Shelf installation is described in Chapter 2, Shelf Installation .
Shelf Zones
The rear panel of the OCM Shelf is divided into three horizontal rows, or Zones that accept a
connector panel that is pre-configured at the factory. Zone 1 (at the top) is used for network
interfaces, voice, and in some applications, digital interfaces. Zone 2 is used for internal busses and
power. Zone 3 (at the bottom) is used for digital interfaces (EIA/TIA-232-E, V.35, etc.).
Figure 1-1 OCM Shelf Front View
J32
J48
J31
J47
J30
J46
J29
J45
J28
J44
J27
J43
J26
J42
J25
J41
J24
J40
J23
J39
J22
J38
J21
J37
J20
J36
J19
J35
J18
J34
J17
J33
J14J12J11 J16J15J13J10J9J8J7J6J5J2J1 J4J3
XA20
Power Supply 1 Power Supply 2
OCM SHELF (Front View)
ZONE 1
Network and Analog
Connections
ZONE 2
Signal, Ground, and Power
Distribution to Plug-in Modules
ZONE 3
Business Equipment
(DTE) Connections

System Description The OCM Shelf
036R340-000 Office Connunications Manager OCM-1000/OCM-2000 1-5
Issue 16 Installation & Operation
OCM Cabling (Typical)
Figure 1-2 Typical OCM Cabling Scheme
OCM Shelf (Rear View)
J32
J48 J31 J47 J30 J46 J29 J45 J28 J44 J27 J43 J26 J42 J25 J41 J24 J40 J23 J39 J22 J38 J21 J37 J20 J36 J19 J35 J18 J34 J17 J33
J52
J14 J12 J11J16 J15 J13 J10 J9 J8 J7 J6 J5 J2 J1J4 J3
J51
J50
J49
Shielded for T1/E1
connections
To Network
T1 LIM
DDM
VCM
HSDM
LIM LIM
CCM CCM
CH B CH A
Y-Cable Y-Cable Y-Cable
Controller
Interface

System Description OCM Management
1-6 Office Connunications Manager OCM-1000/OCM-2000 036R340-000
Installation & Operation Issue 16
OCM Management
Power-Up Self-Test
This test is performed for several seconds on the Common Control Module (CCM) and the Line
Interface Module (LIM) when powered up. The CCM boot firmware performs a basic self-test to
verify that a software download from the TMS Controller can be performed. During this test, the
front panel Test LED lights. When the CCM passes this test, the Test LED goes off. When the test
fails, the LED remains on.
Management & Control
In addition to the Power-Up Self-Test described below, the OCM modules may be performance
tested in two ways, from the TMS Controller or from the optional on-site Maintenance Console.
TMS Controller
The OCM-2000 can accept configuration, status, and diagnostic commands from the TMS
Controller and reports status summaries and alarms back to the TMS Controller. Refer to the TMS
3000 Controller Operation Manual (GDC 036R603-Vnnn).
Maintenance Console
The OCM-1000 and the OCM-2000 supports local diagnostic testing by means of the Maintenance
Console port. Diagnostics are available only with full-feature software in the CCM and with a valid
configuration (limited to Local Channel Loopback, Local Aggregate Loopback, and Local Alarm
Reporting). These tests allow you to isolate problems in the system or OCM during the installation
of your communications network, after installation of the OCM, or following repair.
• For the OCM-2000, refer to the TMS 3000 Controller Operation Manual (GDC
036R603-Vnnn).
• For the OCM-1000, refer to the OCM-1000 User Guide (GDC 036R612-Vnnn), and the
OCM*TMS Maintenance Console User Guide (GDC 036R611-000)
Note Use GDC cable Part # 028H303-025 to connect the Maintenance Controller to the Maintenance Port.

System Description Equipment Lists
036R340-000 Office Connunications Manager OCM-1000/OCM-2000 1-7
Issue 16 Installation & Operation
Equipment Lists
The OCM system components are shipped in shock-absorbent packing within a corrugated box.
Table 1-1 lists the standard equipment. Table 1-2 lists commonly used cables, adapters and
accessories. Some components will not be required/suppliedfor your network installation. Remove
each component from the box and perform a thorough inspection. If any component appears
damaged, contact the shipper immediately. All damaged components must be retained until an
inspection by the shipper has been completed.If necessaryto re-packageand return the unit, usethe
original box and packingmaterial. Technical specifications for all modules are providedlater in this
chapter.
Note A typical OCM node has common modules, a variety of voice/channel modules, and may have one or two
expansion shelves. Actual configuration depends on network topology and application requirements.
Note If your OCM is part of a TMS-3000 system, refer to the TMS-3000 Technical Overview
(036R304-000) and the TMS-3000 Installation and Operation manual (GDC 036R303-000) as needed.
Note Cable part number suffix indicates the cable length, e.g., -005 indicates 5-ft length.
Cable length XXX indicates the cable is available in multiple lengths as described.
Table 1-1 OCM Equipment List
Item Description Part No.
COMMON MODULES
Common Control Module (OCM-2000) 036M400-004, -006
Common Control Module (OCM-1000) 036M400-005, -007
CCM-10 (OCM-1000 or OCM-2000) 036M404-001
LINE INTERFACE MODULES
Line Interface Module V.11 036P436-001
Line Interface Module V.35 036P436-002
SubRate Line Interface Module 036P437-001
T1 Network LIM 036M411-001
E1 Network LIM 036M411-002
CSU T1 Network LIM 036M411-003
DATA MODULES
Dual Data Module 232
Dual Data Module 232 with RTS Delay 036P413-001 036P413 -003
High-Speed Data Module 232 036P410-001
High-Speed Data Module V.35 036P410-002
High-Speed Data Module 422 036P410-003
High-Speed Data Module 423 036P410-004
Zone 1 Connector Panels:
8-DB25 connectors
6- DB25 connectors and 2 shielded modular jacks 036K338-001 036K339-001

System Description Equipment Lists
1-8 Office Connunications Manager OCM-1000/OCM-2000 036R340-000
Installation & Operation Issue 16
VOICE MODULES
2W FXS ADPCM with echo cancellation 036M420-001
2W FXO ADPCM with echo cancellation 036M420-002
2W/4W E&M ADPCM with echo cancellation 036M420-003
2W FXS ADPCM 036M420-004
2W FXO ADPCM 036M420-005
2W/4W E&M ADPCM 036M420-006
2W FXS CELP with FAX 036M420-013
2W FXO CELP with FAX 036M420-014
2W/4W E&M CELP with FAX 036M420-015
2W FXS CELP 036M420-016
2W FXO CELP 036M420-017
2W/4W E&M CELP 036M420-018
2W FXS CELP 9.6 with FAX 036M420-023
2W FXO CELP 9.6 with FAX 036M420-024
2W4W E&M CELP 9.6 with FAX 036M420-025
2W FXS CELP 9.6 036M420-026
2W FXO CELP 9.6 036M420-027
2W4W E&M CELP 9.6 036M420-028
DUAL VOICE MODULES
Dual private Voice 2W FXS 036P460-001
Dual private Voice 2W FXS/FAX 036P460-002
Dual private Voice 2/4W E&M 036P461-001
Dual Private Voice 2/4W E&M/FAX 036P461-002
Dual Private Voice 2W FXO 036P462-001
Dual Private Voice 2W FXO/FAX 036P462-002
Dual Private Voice 2W FXO/FAX Ground Start 036P463-001
OCM Shelf Dual Zone 1 installation kit 036K065-001
OCM Expansion Dual Zone 1 installation kit 036K066-001
DPV Zone 1 kit instruction sheet 036R340-K1
ALARM CARD
Alarm Card 048P067-001
SHELVES
OCM-2210 Shelf with CCM, N/R, North American (100/120V)
Zone 1 16 RJ45
Zone 1 Dual RJ45
036M480-001
010C342-001
010C342-003
OCM -2310 Shelf with CCM, R, North American (100/120V)
Zone 1 16 RJ45
Zone 1 Dual RJ45
036M480-002
010C342-001
010C342-003
OCM -2220 Shelf with CCM, N/R, International (220/240V)
Zone 1 16 RJ45
Zone 1 Dual RJ45
036M481-001
010C342-001
010C342-003
Table 1-1 OCM Equipment List (Continued)
Item Description Part No.