Paradyne Compshere 3000, COMSPHERE 3000 Installation Manual

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COMSPHERE

3000 SERIES CARRIER

INSTALLATION MANUAL

Document No. 3000-A2-GA31-D0

July 1999

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COMSPHERE 3000 Series Carrier

Installation Manual 3000-A2-GA31-D0

14th Edition (July 1999)

Changes and enhancements to the product and to the information herein will be documented and issued as a new release.

Warranty, Sales, Service, and Training Information

Contact your local sales representative, service representative, or distributor directly for any help needed. For additional information concerning warranty, sales, service, repair, installation, documentation, training, distributor locations, or Paradyne worldwide office locations, use one of the following methods:

• Internet: Visit the Paradyne World Wide Web site at www.paradyne.com. (Be sure to register your warranty there. Select

Technical Support → Warranty Registration.)

• Telephone: Call our automated system to receive current information by fax or to speak with a company representative.

— Within the U.S.A., call 1-800-870-2221 — Outside the U.S.A., call 1-727-530-2340

Document Feedback

We welcome your comments and suggestions about this document. Please mail them to Technical Publications, Paradyne Corporation, 8545 126th Ave. N., Largo, FL 33773, or send e-mail to userdoc@paradyne.com. Include the number and title of this document in your correspondence. Please include your name and phone number if you are willing to provide additional clarification.

Trademarks

All products and services mentioned herein are the trademarks, service marks, registered trademarks or registered service marks of their respective owners.

Printed on recycled paper

This publication is protected by federal copyright law. No part of this publication may be copied or distributed, transmitted, transcribed, stored in a retrieval system, or translated into any human or computer language in any form or by any means, electronic, mechanical, magnetic, manual or otherwise, or disclosed to third parties without the express written permission of Paradyne Corporation, 8545 126th Avenue North, P.O. Box 2826, Largo, Florida 33779-2826.

Paradyne Corporation makes no representation or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for a particular purpose. Further, Paradyne Corporation reserves the right to revise this publication and to make changes from time to time in the contents hereof without obligation of Paradyne Corporation to notify any person of such revision or changes.

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Important Safety Instructions

1. Read and follow all warning notices and instructions marked on the product or included in the manual.

2. This product is intended to be used with a 3-wire grounding type plug – a plug which has a grounding pin. This is a safety feature. Equipment grounding is vital to ensure safe operation. Do not defeat the purpose of the grounding type plug by modifying the plug or using an adapter.

Prior to installation, use an outlet tester or a voltmeter to check the ac receptacle for the presence of earth ground. If the receptacle is not properly grounded, the installation must not continue until a qualified electrician has corrected the problem.

If a 3-wire grounding type power source is not available, consult a qualified electrician to determine another method of grounding the equipment.

The dc configuration of this product is to be grounded by connecting an external wire between the building ground and the equipment ground screw on the rear of the power supply assembly. Consult a qualified electrician to ensure that the ground connections are connected.

3. Slots and openings in the cabinet are provided for ventilation. T o ensure reliable operation of the product and to protect it from overheating, these slots and openings must not be blocked or covered.

Important Information

4. Do not allow anything to rest on the power cord and do not locate the product where persons will walk on the power cord.

5. Do not attempt to service this product yourself, as opening or removing covers may expose you to dangerous high voltage points or other risks. Refer all servicing to qualified service personnel.

6. General purpose cables are provided with this product. Special cables, which may be required by the regulatory inspection authority for the installation site, are the responsibility of the customer.

7. Install carriers while still empty. Start at the bottom of the cabinet and work up.

8. When installed in the final configuration, the product must comply with the applicable Safety Standards and regulatory requirements of the country in which it is installed. If necessary, consult with the appropriate regulatory agencies and inspection authorities to ensure compliance.

9. A rare phenomenon can create a voltage potential between the earth grounds of two or more buildings. If products installed in separate buildings are interconnected, the voltage potential may cause a hazardous condition. Consult a qualified electrical consultant to determine whether or not this phenomenon exists and, if necessary, implement corrective action prior to interconnecting the products.

10. In addition, if the equipment is to be used with telecommunications circuits, take the following precautions:

– Never install telephone wiring during a lightning storm. – Never install telephone jacks in wet locations unless the jack is specifically designed for

wet locations.

– Never touch uninsulated telephone wires or terminals unless the telephone line has been

disconnected at the network interface. – Use caution when installing or modifying telephone lines. – Avoid using a telephone (other than a cordless type) during an electrical storm. There may

be a remote risk of electric shock from lightning. – Do not use the telephone to report a gas leak in the vicinity of the leak.

B3000-A2-GA31-D0 July 1999

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COMSPHERE 3000 Series Carrier

Notices Regarding Telecommunications Equipment



THIS EQUIPMENT HAS BEEN TESTED AND FOUND TO COMPL Y 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.

THE AUTHORITY TO OPERATE THIS EQUIPMENT IS CONDITIONED BY THE REQUIREMENTS THAT NO MODIFICATIONS WILL BE MADE T O THE EQUIPMENT UNLESS THE CHANGES OR MODIFICA TIONS ARE EXPRESSL Y APPROVED BY PARADYNE.



                  

                

   

Canada

Notice to Users of the Canadian Public Switched Telephone Network

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.

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United Kingdom

Important Information

Users should ensure for their own protection that the electrical ground connections of the power utility, telephone line and internal metallic water pipe system, if present, are connected together. This precaution may be particularly important in rural areas.

CAUTION

Users should not attempt to make such connections themselves, but should contact the appropriate electric inspection authority, or electrician, as appropriate.

The Load Number for this equipment is listed on a label on the device. The Load Number (LN) assigned to each terminal device denotes the percentage of the total load to be connected to a telephone loop which is used by the device to prevent overloading. The termination on a loop may consist of any combination of devices subject only to the requirement that the total of the Load Numbers of all devices does not exceed 100.

Ringer Equivalence Number

The Ringer Equivalence Number (REN) is a customer guide indicating approximately the maximum number of items of apparatus that should be connected simultaneously to the telephone line. The sum of the RENs should not exceed four. This value includes any BT-provided instrument which may be assumed to have a REN of 1 unless marked otherwise. The REN of this apparatus is 1.

Connection to Leased Lines

If any other apparatus, including cable or wiring, is connected between the apparatus and the point of connection to any speechband circuit, then all that other apparatus shall comply with the following:

1. The overall transmission characteristics of all that other apparatus shall be such as to

2. All that other apparatus shall comprise only:

introduce no material effect upon the electrical conditions presented to one another by the apparatus and the speechband circuit; and

(i) apparatus approved for the purpose of connection between the apparatus and a

speechband circuit; and

(ii) cable or wiring complying with a code of practice for the installation of equipment

covered by this part of BS 6328 or such other requirements as may be applicable.

No d.c. interaction is intended between the apparatus and the telephone network.

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COMSPHERE 3000 Series Carrier

All European Countries

Safety Notice

Interconnection circuits between a modem and any other equipment should be such that the equipment continues to comply with the requirements of EN41003 for TNV (T elephone Network Voltage) circuits and EN60950 for SELV (Safety Extra Low Voltage) circuits after making connection between circuits.

Japan

Notices

This equipment is classified in the 1st Class category. When used in a residential area or in an adjacent area thereto, radio interference may be caused to radios and TV receivers, etc. VCCI-1*

Restrictions

Due to JATE (Japan Approvals Institute for Telecommunications Equipment) regulations, only 3 attempts to dial a number are permitted in a 3-minute period. If a fourth attempt is made to dial the same number, the modem returns the ERROR return code. This restriction applies to the number dialed from the command line or from a directory. An occurrence of the restriction is canceled when a different number is dialed, or when 3 minutes have elapsed.

Equipment W arranty and Support

If you experience trouble with this equipment, please contact your sales or service representative (as appropriate) for repair or warranty information. If the product needs to be returned to the company service center for repair, contact them directly for return instructions using one of the following methods:

• Internet: V isit the Paradyne World Wide Web site at www.paradyne.com.

• Telephone: Call our automated call system to receive current information via fax or to speak

with a company representative. — Within the U.S.A., call 1-800-870-2221 — Outside the U.S.A., call 1-727-530-2340

If the trouble is causing harm to the telephone network, the telephone company may request that you remove the equipment from the network until the problem is resolved.

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Table of Contents

Preface

About This Document v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Document Contents v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Document Ordering Information v. . . . . . . . . . . . . . . . . . . . . . . . . . . .

1. Introduction

Overview 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Carrier Components 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2. Cabinet Unpacking and Setup

Overview 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Presetup Inspection 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Unpacking the Cabinet 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Cabinet Setup 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3. Installing the Carrier and Assembly Components

Overview 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Standard Carrier Equipment 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Other Carrier Equipment 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Preinstallation Inspection 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation Considerations 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Positioning the Mounting Brackets 3-4. . . . . . . . . . . . . . . . . . . . . . . . . .

Carrier Installation 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SDCP Installation 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power Transformer Unit Installation 3-8. . . . . . . . . . . . . . . . . . . . . . . . .

Fan Module Installation 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installing the SDCP 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Speaker Panel Installation 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SGRD/FGRD Connection 3-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Alarm Output Connection 3-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Dial Modem Control Interface 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SDU Installation 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

NMS Connection 3-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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COMSPHERE 3000 Series Carrier

4. T1 Auxiliary Backplane

5. Connecting to the Network

T1 Auxiliary Backplane Installation 4-1. . . . . . . . . . . . . . . . . . . . . . . . .

T1 CSU and T1 DSU/CSU Network Interface 4-5. . . . . . . . . . . . . . . . .

T1 CSU DTE Port 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

T1 DSU/CSU DTE Ports 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SNMP LAN Adapter Connectivity 4-5. . . . . . . . . . . . . . . . . . . . . . . . . .

T1 COM Port Connection to an External PC 4-6. . . . . . . . . . . . . . . . . . .

Overview 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Device Arrangements in the Carrier 5-1. . . . . . . . . . . . . . . . . . . . . . . . .

Interface Connectors 5-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Network Interface Module (NIM) Connectors 5-4. . . . . . . . . . . . . . . . .

NIM Installation 5-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6. Circuit Card Installation

Overview 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Preinstallation Inspection 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Before You Begin 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Modular Circuit Card Interface Connectors 6-2. . . . . . . . . . . . . . . . . . .

Modular Circuit Card Installation 6-6. . . . . . . . . . . . . . . . . . . . . . . . . . .

Filler Panel Installation 6-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Ferrite Choke Installation 6-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A. Pin Assignments

Overview A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Digital/Lease Network Connections A-1. . . . . . . . . . . . . . . . . . . . . . . . .

NIM Interface Connections A-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

NMS Interface Connections A-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

50-Pin Modular Plugs A-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Carrier Backplane Connectors A-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

D-Lead Control Interface A-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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B. T1 CSU and T1 DSU/CSU Interface Connectors

Overview B-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

T1 Auxiliary Backplane Connectors B-1. . . . . . . . . . . . . . . . . . . . . . . . .

T1 Network Interface Connector B-3. . . . . . . . . . . . . . . . . . . . . . . . . . . .

DSX-1 Port DTE Interface B-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

COM Port Interface B-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Port Interfaces B-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Diagnostic Channel Extension Cable B-10. . . . . . . . . . . . . . . . . . . . . . . . .

External Clock Connector B-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C. Technical Specifications

D. Equipment List

Document Ordering Information D-1. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Equipment List D-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table of Contents

Glossary

Index

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COMSPHERE 3000 Series Carrier

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iv July 1999 3000-A2-GA31-D0

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Preface

About This Document

This document contains installation information for the COMSPHERE 3000 Series Carrier and is designed to be used with:

• Data Service Units (DSUs): Models 3511, 3551,

3611, and 3616

• Data Backup Modules (DBMs): Model 3611

• Dial/lease modems: Models 3811, 381 1Plus (3981),

3821Plus, 3911, and 3921Plus

• T1 Channel Service Units (CSUs): Model 3151

• T1 DSU/CSUs: Model 3161

Refer to the appropriate device manual for specific unit installation and operation information. It is assumed that you are familiar with the functional operation of data equipment, digital network services, DSUs, and dial/lease modems.

Document Contents

Chapter 1 provides descriptive information about the

COMSPHERE 3000 Series Carrier and optional features.

Chapter 2 lists the steps for cabinet unpacking, setup,

and installation.

Chapter 3 provides descriptive information and

procedures for installing the:

• Shared Diagnostic Control Panel (SDCP)

• Power supply

• Fan module

• Speaker panel

• Network Interface Module (NIM)

• Shared Diagnostic Unit (SDU)

• DSU

• Dial/lease modem

• Ferrite chokes.

Chapter 4 includes T1 CSU and T1 DSU/CSU

auxiliary backplane installation procedures.

Chapter 5 presents details regarding connecting to the

network.

Chapter 6 provides circuit card installation procedures. Appendix A provides pin assignments. Appendix B includes T1 CSU and T1 DSU/CSU

interface connections.

Appendix C presents technical specifications. Appendix D includes related documents and an

equipment list.

The Glossary provides definitions for acronyms and

product-specific terms used in this manual.

Document Ordering Information

For a list of related documents, see T able D-1 in

Appendix D, Equipment List.

v3000-A2-GA31-D0 July 1999

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COMSPHERE 3000 Series Carrier

vi July 1999 3000-A2-GA31-D0

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Introduction

Overview 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Carrier Components 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Overview

The COMSPHERE 3000 Series Carrier assembly, Figure 1-1, supports high-density mounting of the following Paradyne products in a central-site environment:

• Channel Service Units (T1 CSUs)

• Data Service Units/Channel Service Units

(T1 DSU/CSUs)

• Data Service Units (DSUs)

• Dial Backup Modules (DBMs)

• Time Division Multiplexer (TDM)

• Multichannel Multipoint Multiplexer (MCMP)

• Dial/Lease Modems

Figure 1-1. COMSPHERE 3000 Series Carrier

496-12291-04

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COMSPHERE 3000 Series Carrier

Carrier Components

The carrier assembly is shipped with a power transformer unit. Refer to Equipment List (T able D-2) in Appendix D for details. Other carrier components are ordered separately:

• Power transformer unit. Provides low voltage

ac power to the carrier’s internal power distribution bus.

• –48 Vdc Central Office (CO) Power Unit. For

carriers designed to operate from a –48 Vdc power unit. Consists of a single dc power module with a fan and operates in Basic mode. An optional second power module is available for the CO Power Unit.

• Fan module. Provides forced air cooling to

dissipate heat generated within the carrier. It is recommended that fully configured carriers and cabinets have fan modules installed to extend the life of the equipment.

• Shared Diagnostic Control Panel (SDCP).

Required for initial installation and testing of the devices and their options. In conjunction with the SDU, allows up to eight carriers to be managed from one control panel.

• Network Interface Modules (NIMs). Provides the

dial, ISDN, or switched 56 kbps digital service interface for DSUs, DBMs, and dial/lease modems.

• Shared Diagnostic Unit (SDU). Provides the

required interface that daisy chains carriers together for network management system (NMS) and/or SDCP control. In a cabinet configuration, connectivity between the units in the individual slots allows control of compatible units in the carrier. The control can be a single NMS interface, a single SDCP, or both.

• T1 auxiliary backplane(s). Provides an interface

between a T1 digital network and customer provided equipment (CPE).

• Rear connector plate(s). Provides the interface

between DSUs, DBMs, and dial/lease modems and the DTEs.

• Connector module(s). Provides the interface

between DSU/TDMs or DSU/MCMPs and the DTEs.

• Filler panel(s). Prevents accidental contact with

backplane connectors. Required for unfilled slots in the carrier.

• Speaker panel. Provides audio monitoring of

dial/lease modems. Allows the user to hear audio signals (ringing, busy signal) during normal operation.

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Cabinet Unpacking and Setup

Overview 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Presetup Inspection 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Unpacking the Cabinet 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Cabinet Setup 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Leveling the Cabinet 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Reversing the Cabinet Doors 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Overview

Paradyne provides a COMSPHERE 72-inch high cabinet for mounting the COMSPHERE 3000 Series Carriers. Up to six carriers can be mounted into a single cabinet. Alternatively, you can mount carriers into other commercial EIA standard 19-inch and 23-inch wide cabinets.

When shipped:

• Cabinets are packed in cardboard shipping

containers secured to wooden pallets.

• The shipping containers are bound with plastic

straps.

• Inside the shipping container, the cabinet itself is

strapped to the wooden pallet with plastic straps.

There is minimal clearance between the cabinet and the shipping container, and the cabinet frame is not wrapped in packing material.

Presetup Inspection

Before opening the shipping container, inspect it for signs of damage. Specific signs to check for are:

• Major tears or puncture holes on the sides of the

container

• Splits in the seams

• Corner damage or any additional signs of the

container having been dropped

Unpacking the Cabinet

" Procedure

1. Use a utility knife to cut all plastic straps surrounding the shipping container.

2. Cut around the base of the container to unpack the cabinet. Do not cut along the container’s seams. Doing so may damage the cabinet because of the lack of clearance. Lift the container off the cabinet.

NOTE

If your ceilings do not provide enough clearance to lift the container, tip the container and cabinet sideways. You will need another person to help you tip the container and cabinet, and pull the container off.

3. Once the container is off, cut the plastic straps holding the cabinet frame to the pallet.

4. Remove the packing material at the base of the cabinet and use a large dolly to lift and move the cabinet to its desired location.

If the shipping container does show signs of damage, report this immediately to your shipping representative and also to your service representative.

2-13000-A2-GA31-D0 July 1999

Page 16

COMSPHERE 3000 Series Carrier

Cabinet Setup

The cabinet is shipped with the following:

• Doors (two)

• Mounting rails

• T wo factory-installed ac power strips

Cabinet setup requirements consist of:

• Leveling the cabinet once it is in place at your site

and, if needed

• Reversing the cabinet doors

Leveling the Cabinet

There are four adjustable leveling feet at the bottom of the cabinet; these screw up or down, enabling you to adjust the cabinet to a level position on the floor.

The required tools are a level and an adjustable crescent wrench.

" Procedure

Reversing the Cabinet Doors

The cabinet’s front and back hinged doors are installed on the cabinet frame at the factory to open left-to-right. T o reverse the doors, use the pre-drilled holes on the opposite side of the frame.

" Procedure

1. Supporting the door, use a flat-blade screwdriver to remove the screws from the bottom hinge, detaching the hinge from the cabinet frame.

2. Supporting the door, remove the screws from the top hinge, detaching the hinge and the door from the cabinet frame.

3. Flip the door end-over-end.

4. Holding the door in position on the opposite side, align the hinge holes with the predrilled holes on the cabinet frame provided for this purpose. Then, use the same screws to reattach the door by its hinges to the cabinet.

1. Place the level against the front door and adjust the leveling feet until the cabinet stands level vertically from front to rear.

2. Place the level against one cabinet side and adjust the leveling feet until the cabinet stands level vertically from side to side.

496-14890

2-2 July 1999 3000-A2-GA31-D0

Page 17

Installing the Carrier and

Assembly Components

Overview 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Standard Carrier Equipment 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Other Carrier Equipment 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Preinstallation Inspection 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation Considerations 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Positioning the Mounting Brackets 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Carrier Installation 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installing a Carrier With Threaded Screw Holes 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installing a Carrier Without Threaded Screw Holes 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SDCP Installation 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installing the SDCP Ribbon Cable 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power Transformer Unit Installation 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fan Module Installation 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installing the SDCP 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Testing the SDCP 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Speaker Panel Installation 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Testing the Speaker Panel 3-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SGRD/FGRD Connection 3-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Alarm Output Connection 3-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Dial Modem Control Interface 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SDU Installation 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SDU Modular Jacks and DIP Switches 3-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SDU CC/DC Operation 3-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installing the SDU 3-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SDU Front Panel Connection 3-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Testing the SDU 3-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

NMS Connection 3-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connecting the NMS 3-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-13000-A2-GA31-D0 July 1999

Page 18

COMSPHERE 3000 Series Carrier

Overview

The COMSPHERE 3000 Series Carrier is a metal enclosure that has seventeen slots for installing circuit cards. The Shared Diagnostic Unit (SDU) uses Slot 0; the other sixteen slots are for devices. This number is reduced by one slot for:

• Dial/lease multiport modems, which occupy two

slots.

• DSU with MUX card. The MUX card for TDM or

MCMP is physically attached to a DSU, and the two cards occupy two slots.

• Digital bridge applications, where each DBM-X

also occupies a separate slot.

Standard Carrier Equipment

Each carrier is shipped with the items listed below

bundled in a plastic bag:

• Six cable ties

• T wo fuses (spares)

• Four #10-32 mounting screws

• Four cabinet #12-24 mounting screws and four

speed nuts for use with other cabinets

• One jumper wire for the frame ground/signal

ground

In addition, the carrier is shipped with a power cord and power transformer unit. Figure 3-1 shows a fully loaded carrier.

3000 Series

Carrier

Slot Numbers

SDU 1

Shared Diagnostic

21516

3000

Control Panel

(SDCP)

SDU

Slot 0

Circuit

Card

Captive Screws

Brackets Set for 19-Inch Cabinet

AC Power

Transformer

Unit

Fan Module

(optional)

496-13596-05

Figure 3-1. 3000 Series Carrier and Components

3-2 July 1999 3000-A2-GA31-D0

Page 19

Installing the Carrier and Assembly Components

Other Carrier Equipment

You are responsible for ordering/supplying the

following equipment:

• COMSPHERE 72-inch high cabinet, or other EIA

standard 19- or 23-inch wide cabinet

• Fan module(s), if needed

• Shared Diagnostic Control Panel (SDCP)

• Shared Diagnostic Unit (SDU), if needed

• DTE interface assembly, if needed

• Alarm buzzer or light

• One or two Network Interface Modules (NIMs), if

needed

• Connector modules

• Speaker panel, if needed

• One network interface cable for each of the DSUs

or modems

• TDM, MCMP, and/or digital bridge interface

cables, if needed

• Connecting cables and cords

• Rear connector plates for optional pre-mounting;

modular devices are packaged with rear connector plates. You can also order rear connector plates separately

• Power transformer unit. Ensure that the unit has

not been damaged, possibly causing a short circuit of internal components. Tighten any screws that may have worked loose.

• Shared Diagnostic Control Panel (SDCP).

Inspect the SDCP and its cable.

• Shared Diagnostic Unit (SDU). Check the SDU

for physical damage. Ensure that the circuit card and faceplate are not damaged.

• Speaker panel. Check the speaker, speaker jack,

and panel for physical damage.

If any of your equipment shows signs of shipping damage, report this immediately to your shipping and service representatives.

Installation Considerations

Before installing your carrier, make sure:

• Your installation site is well-ventilated, clean, and

free of environmental extremes.

• You have 2 to 3 feet clearance at the front and rear

of the cabinet for installing the following:

— DTE cables — Fan module — Network interface connectors

• Filler panels for empty slots

• T1 auxiliary backplane(s), if needed

• Devices, including DSUs and CSUs

• Applicable manuals. Appendix D contains a related

documents list and equipment list.

Preinstallation Inspection

When your equipment arrives, perform an inspection:

• Carrier. Remove the carrier from its shipping

container and check for physical damage (refer to

Chapter 2).

• Fan module. Check for physical damage, such as

broken blades. Spin fan blades manually to test for damage.

— Rear connector plates or connector modules — SDCP (optional)

You will need the following tools:

• A large Phillips screwdriver to install a:

— Carrier in the cabinet — Power transformer unit under the carrier

• A small, flat-blade screwdriver for:

— Removing and replacing the cover plate or

SDCP

— Installing the 50-pin cable connectors

3-33000-A2-GA31-D0 July 1999

Page 20

COMSPHERE 3000 Series Carrier

Positioning the Mounting Brackets

The carrier has reversible mounting brackets, which allow installation in cabinets that are either 19 inches or 23 inches wide. The brackets:

• Are initially positioned for installation into a

19-inch cabinet.

• Must be reversed on the carrier for installation into

an EIA standard 23-inch wide cabinet.

.67"

6.00"

T o reverse the mounting brackets:

" Procedure

1. Remove the screws that attach them to the sides of the carrier.

2. Reverse the brackets and replace the screws.

Carrier Installation

HANDLING PRECAUTIONS

FOR

ST ATIC-SENSITIVE DEVICES

This product is designed to protect sensitive components from damage due to electrostatic discharge (ESD) during normal operation. When performing installation procedures, however, take proper static control precautions to prevent damage to equipment. If you are not sure of the proper static control precautions, contact your nearest sales or service representative.

19-Inch Cabinet 23-Inch Cabinet A

6.52"

23-Inch Cabinet B

496-12293-04

One COMSPHERE 72-inch cabinet can hold up to six carriers; however, a cabinet does not need to be fully populated. Follow these rules during installation.

• Install carriers from the bottom of the cabinet and

work up. This provides the following:

— Proper alignment for subsequent carriers. — Easier installation since the carriers can be

lowered onto the mounting screws from above. — Convenient connection of the DTE interface. — Proper cabinet balance. Bottom-up installation

keeps the cabinet from becoming top heavy.

• Install empty carriers in the cabinet.

3-4 July 1999 3000-A2-GA31-D0

Page 21

Installing the Carrier and Assembly Components

Installing a Carrier With Threaded Screw Holes

" Procedure

1. Place the carrier against the front rails at the bottom of the cabinet to determine where the two lower machine screws should be installed. Then, set the carrier aside.

496-14763-01

The carrier cabinet may or may not have threaded

screw holes.

If the cabinet . . .

Has threaded screw holes

Does not have threaded screw holes

Use the short Phillips-head screws included in the hardware package and follow the procedure in

Installing a Carrier With Threaded Screw Holes

Use the self-retaining nuts and the longer Phillips-head screws included in the hardware package and follow the procedure in

Installing a Carrier Without Threaded Screw Holes

3-6

Then . . .

in the next section

Install

First

on page

Front Rail

7th Hole

Front of 19-inch Carrier Cabinet

2. Use a screwdriver to install the two screws loosely enough to allow the bracket keyholes to drop

Mounting

Bracket

Keyhole

496-12294-02

under the screw heads during installation.

3. Place the carrier against the front rails of the cabinet again, allowing the installed machine screws to pass through the keyholes.

4. Lower the carrier into place, allowing the keyholes to slide under the screw heads.

NOTE

Installing the carrier may be a two-person task. One person holds the carrier in proper alignment, and one person installs the screws.

This positions the carrier correctly for installation of the two remaining machine screws and helps support its weight during installation of these screws.

5. Install the two remaining machine screws at the top corners of the carrier and tighten all four.

6. Install the next carrier in the same manner (from the bottom up) using Steps 1 through 5.

3-53000-A2-GA31-D0 July 1999

Page 22

COMSPHERE 3000 Series Carrier

Installing a Carrier Without Threaded Screw Holes

" Procedure

1. Position the carrier in the cabinet and determine the front rail holes to be used.

2. Slip a self-retaining nut (Speed Nut) onto each rail hole selected and align the hole of the nut with the hole in the rail.

3. Line the carrier mounting bracket up with the self-retaining nut, and turn the screw into the carrier mounting bracket and the nut. Start all four screws, then tighten all four until each screw head is flush with the carrier and the carrier is securely mounted in the cabinet.

Front Rail

7th Hole

Mounting

Bracket

SDCP Installation

An SDCP can control up to eight carriers containing:

• Up to 128 compatible T1 CSUs, T1 DSU/CSUs,

DSUs, or dial/lease modems, or

• A reduced number when TDMs, MCMPs, DBMs,

or dial/lease multiport modems are also installed.

Carrier Slots 1–16

SDU12345678910111213141516

Select

OK Alarm BckUpTest EC

Select

Key

Status

Indicators

If your configuration has two or more carriers, an SDU is also required in each carrier to connect the SDCP interface from carrier to carrier. Refer to the SDU

Installation section, page 3-16.

The following table defines the SDCP status indicators.

F1 F2 F3

Keypad

COMSPHERE 3000

LCD

Display

496-12348a-03

Speed Nut

Screw

Keyhole

Front of 19-inch Carrier Cabinet

496-12294a-02

4. Install the next carrier in the same manner (from the bottom up) using Steps 1 through 3.

Label

Color Description

OK green Health and status indicator for the

selected device. Mirrors the OK indicator on the faceplate, except for dial/lease modems, where OK replaces the power indicator.

Alarm red Health and status indicator for the

selected device. Mirrors the Alrm indicator.

BckUp yellow Mirrors the Dial indicator on the

selected device. Not used for T1 CSUs and T1 DSU/CSUs.

Test yellow Mirrors the Test indicator on the

selected device.

EC green Error Correction indicator for dial/

lease modems. Not applicable for other devices.

3-6 July 1999 3000-A2-GA31-D0

Page 23

Installing the Carrier and Assembly Components

Installing the SDCP Ribbon Cable

NOTE

The SDCP ribbon cable must be connected to the carrier backplane before the power transformer unit and optional fan module are installed.

Removing power causes loss of service to all circuit card slots in the carrier. It is recommended that you do not perform this procedure during peak operating hours.

" Procedure

1. Select the carrier on which to install the SDCP. The SDCP can be installed on any carrier in a

cabinet. The most convenient height for the SDCP is at eye level (the second or third carrier from the top of the cabinet).

If the ac power

transformer unit is . . .

Then go

to . . .

Installed Step 3 Not installed Step 6

3. At the rear of the carrier, disconnect the ac power cord from the carrier. Unscrew the two captive screws securing the power transformer unit.

Receptacle

P26 P25 P24 P23

J2 P22 J1 P21

P20 P19

d y n

SDCP

Installed at

Eye Level

496-14892

2. Remove the carrier’s cover plate by unscrewing the four captive screws.

496-14804-01

4. Disconnect the two power connectors (P19 and P20) by pressing the catch on the bottom of each and pull it free of its mating connector.

5. At the front of the carrier, slide the power transformer unit straight out and set aside. You may need another person standing at the rear to feed the transformer output wires through the opening in the backplane.

3-73000-A2-GA31-D0 July 1999

Page 24

COMSPHERE 3000 Series Carrier

6. Attach either end of the 16-pin ribbon cable (delivered with the SDCP) to the P18 ribbon cable connector.

P18-SDCP

Ribbon Cable

Connector

P17

P18

496-14921

7. Feed the ribbon cable through the four built-in retainer clips provided in the carrier.

Backplane Connector

Built-in

Retainer

Clips

SDCP

Ribbon

Cable

Connector

Install the power transformer unit. Refer to the next

section, Power Transformer Unit Installation.

Power Transformer Unit Installation

If you are . . . Then . . .

Installing an SDCP in the carrier

Not installing an SDCP

The carrier obtains low voltage ac power from the power transformer unit mounted at the bottom of the carrier.

" Procedure

1. At the front of the carrier, remove the cover plate by unscrewing the four captive screws.

Go to the section, page 3-6.

Continue with the following procedure.

SDCP Installation

Captive Screws

Cover Plate

496-14889-01

2. Place the power transformer unit on the flanges at the bottom of the carrier. Slide the power

SDCP

Ribbon Cable

transformer unit into place against the rear rail of the enclosure, guiding the transformer output wires through the opening in the backplane.

495-14810

3-8 July 1999 3000-A2-GA31-D0

Page 25

Fan Module

Power

Connector

Power

Transformer

Unit

NOTE

Transformer

Output

Wires and

Connectors

495-14803

Installing the Carrier and Assembly Components

4. Plug the power transformer output connectors into the P19 and P20 connectors on the backplane and latch them.

CAUTION

The power cord contains a 3-wire grounding-type plug which has a grounding pin. This is a safety feature. Grounding of the carrier is vital to ensure safe operation. Do not defeat the purpose of the grounding plug by modifying it or by using an adapter.

Prior to installation, use an outlet tester or voltmeter to check the ac receptacle for earth ground. If the power source does not provide a ground connection, consult an electrician to determine another method of grounding the carrier before proceeding with the installation.

The power transformer unit output wires are terminated with plastic connectors. The power transformer unit must be installed with the output wires protruding through the backplane carrier.

3. At the rear of the carrier, use the larger screwdriver to tighten the two captive screws that fasten the power transformer unit to the carrier.

P26 P25 P24 P23

J2 P22 J1 P21

P20 P19

Captive Screws

496-14894

Receptacle

P26 P25 P24 P23

J2 P22 J1 P21

P20 P19

496-14804-01

5. Plug the appropriate end of the power cord into the ac receptacle on the carrier.

6. Attach the ferrite choke on the ac power transformer cord as close as possible to the connector.

3-93000-A2-GA31-D0 July 1999

Page 26

COMSPHERE 3000 Series Carrier

7. Plug the other end of the power cord into one of the convenience outlets inside the cabinet, or to an external ac outlet.

If you are not installing a fan module or SDCP, return to the front of the carrier and replace the cover plate. Use the smaller screwdriver to tighten the four captive screws.

Fan Module Installation

Install a fan module for installations where the ambient temperature is likely to be near the upper limit of the acceptable range (see T able 3-1) to provide forced air cooling.

The power transformer unit must be installed before the fan module.

" Procedure

1. If the carrier has been installed, remove the cover plate by loosening the four captive screws. Set the cover plate aside.

2. Place the fan module on the flanges at the bottom of the carrier with the power connector facing the mating power connector on the installed power transformer unit.

3. Slide the fan module into the carrier until the power connectors engage firmly.

4. Once the carrier is connected to ac power, the fans in the fan module will begin blowing. If they do not, check potential reasons in the following table.

If the . . .

Fan module does not operate

Fuses are blown Replace and determine the

Fuses are okay Install the fan module in

Fan module still does not work

Check the fuses on the back of the power transformer unit.

cause of the overload.

another powered carrier. Replace the fan module.

Then . . .

Flanges

Cover Plate

(SDCP Shown)

Captive

Screws

Power

Connector

Fan

Module

496-14809-02

Fan module works in a different carrier

Replace the power transformer unit of the first carrier.

5. If you are not installing an SDCP or a speaker panel, reposition the cover plate over the installed fan module. Use a small screwdriver to engage and tighten the four captive screws.

To install . . .

An SDCP

A speaker panel

Go to the . . .

SDCP Installation

page 3-6.

Speaker Panel Installation

section on page 3-12.

section on

3-10 July 1999 3000-A2-GA31-D0

Page 27

Installing the Carrier and Assembly Components

Circuit Card

1 fan module er carrier

Table 3-1

Fan Module Cooling Requirements

Ambient

T emperature

Range

39_ – 86_F (4_ – 30_C)

Circuit Card

Configuration

DSUs without DBMs and CSUs

Dial/lease modems and DSUs with DBM

1–2 3 4 5–6

No fan modules

1 fan module (place in middle carrier)

Number of Carriers

2 fan modules (place in bottom carrier and second from top)

T1 DSU/CSUs 21 fan module per carrier or 1 fan module per two carriers

(placed in upper carrier)

86_– 122_F

T1 DSU/CSUs

(30_– 50_C)

Installing the TDM or MCMP option has no effect on this table.

Use the strictest cooling requirements when there is a mixture of units installed.

Allow 1.75″ (IU) spacing between carriers if more than 3 carriers are required.

Installing the SDCP

After the SDCP ribbon cable, power transformer unit,

1 fan module per carrier (Limit of 3 carriers in a cabinet at temperatures above 40_C or 104_F)

2. Secure the panel to the front of the carrier with its four captive screws, using the same screw holes that held the blank cover plate.

and optional fan module are installed:

The display on the SDCP should light up immediately.

" Procedure

Continue with the following section, Testing the SDCP. If the SDCP does not light up:

1. Attach the connector on the free end of the ribbon cable to the back of the SDCP.

• Check the ac power connections at the rear of the

carrier and the two fuses at the rear of the power transformer unit.

1 fan module (place in second carrier from top)

1 fan module per carrier

SDCP

Ribbon

Cable

dyn

Shared Diagnostic

Control Panel

(SDCP)

• Verify that both ends of the SDCP ribbon cable are

seated securely in their connectors.

• If the SDCP still does not light up, call your service

representative.

495-14811

3-113000-A2-GA31-D0 July 1999

Page 28

COMSPHERE 3000 Series Carrier

Testing the SDCP

Once devices have been installed (see Chapters 5 and 6), use the following procedure to test the SDCP by entering device addresses.

" Procedure

1. From the front panel, press Select.

2. Enter a valid carrier and slot address. Refer to the

SDU Installation section, page 3-16, for

information on carrier addresses.

— For T1 CSUs and T1 DSU/CSUs, the green

OK indicator flashes and should be the only OK indicator flashing in the cabinet.

— For all devices except T1 CSUs and

T1 DSU/CSUs, the yellow Front Panel indicator on the selected device should light and should be the only Front Panel indicator lit in the cabinet.

3. Press Select again. The SDCP display should show the:

T o install the speaker panel to the carrier:

" Procedure

1. Remove the cover plate.

2. Secure the speaker panel to the front of the carrier using its four captive screws.

3. Use the same screw holes that held the cover plate in place. Go to the Testing the Speaker Panel section, page 3-13.

T o install the speaker panel to the cabinet’s front

mounting rails:

" Procedure

1. Determine if you want to mount the speaker panel above or below the carrier. See Figure 3-2.

2. Fasten one of the speaker panel mounting brackets to a front mounting rail with a #10 Phillips screwdriver (supplied).

— Last menu displayed. — Top-level menu on the selected device, in the

case of a new installation.

Speaker Panel Installation

You can install an optional speaker panel to provide audio monitoring of any dial/lease modem installed in a cabinet containing COMSPHERE 3000 Series Carriers.

If there is . . .

Only one carrier in the cabinet and no SDCP installed

More than one carrier in the cabinet

Only one carrier in the cabinet and an SDCP is mounted on the carrier

Mount the speaker

panel . . .

Directly to the carrier in place of the cover plate.

On a carrier that does not contain the SDCP.

To the front rail.

NOTE

If your cabinet has unthreaded rails, first attach a speed nut to the rail hole you intend to use. Then, fasten a bracket to the mounting rail using a supplied #12 screw (the longer Phillips-head screw).

3. Verify the position by holding the panel against the bracket and aligning the panel’s captive screws with the bracket’s screw post. For appearance, you can adjust the bracket’s position to eliminate space between the speaker panel and carrier.

4. Fasten the second speaker panel bracket to the other mounting rail to match the first bracket’s position.

5. Once the brackets are installed, use a small flathead screwdriver to tighten the speaker panel’s four captive screws to the mounting brackets.

3-12 July 1999 3000-A2-GA31-D0

Page 29

Installing the Carrier and Assembly Components

Testing the Speaker Panel

Once the speaker panel is installed, verify that the

speaker is working.

" Procedure

1. Connect one end of the supplied coiled cable into

the speaker panel’s jack labeled Spkr and the other end into any dial/lease modem’s speaker jack labeled Spkr.

2. If the cabinet has an SDCP, press Select and enter a valid carrier and slot address for the modem used in Step 1. The Front Panel status indicator on the dial/lease modem’s faceplate lights, indicating that it is connected to the SDCP.

3. Using the SDCP, scroll the menu until the Control branch appears on the LCD.

Speaker Panel

Mounting

Bracket

#10

Phillips-head

Screw

4. Access the Control branch and select the Speaker function.

5. Select a speaker setting of Low, Medium, or High and place a call to listen to the dialing sequence.

NOTE

This is only a temporary setting. Upon a reset, the modem returns to its default setting of Medium. To change the default setting, refer to the device’s manual.

If you do not have an SDCP installed and are using

AT commands, use the ATM command to turn the speaker ON and the ATL command to adjust the speaker volume.

Front Rail

Captive Screws

Modem Speaker

Panel

Speaker Jack

Carrier

Mounting

Bracket

Captive Screws

SDCP

496-13184-05

Figure 3-2. Speaker Panel for Dial/Lease Modems

3-133000-A2-GA31-D0 July 1999

Page 30

COMSPHERE 3000 Series Carrier

SGRD/FGRD Connection

Grounding reduces interference. To connect frame ground (FGRD) to signal ground (SGRD) for all DSUs and modems in the carrier, install the provided wire strap between the SGRD and FGRD terminals at the rear of the carrier. The terminals are an insulation displacement type, with a slot designed to cut through the insulation on the wire.

SGRD

FGRD

P23

P21

ALARM

E3 E1 E2

496-14805-01

2. Insert one end of the strap into the SGRD terminal. It is not necessary to strip the wire.

Tube Slot

Hollow Tube

Wire End

496-14656b-01

3. Fit the strap into the slot in the terminal. Replace the plastic cap on the terminal, fitting the strap into the matching slot cut lengthwise in the cap.

Cover Slot

496-14656c-01

NOTE

SGRD must not be connected to FGRD when leased modems are installed in the carrier.

" Procedure

1. Use pliers to pull the plastic covers off the SGRD (E4) and FGRD (E3) terminals.

Plastic Cover

496-14656a-01

4. Use a Phillips screwdriver to push the cap firmly onto the terminal. As you seat the cap, the terminal cuts through the insulation on the strap and makes contact.

495-14656d-01

5. Insert the other end of the strap into the FGRD terminal and repeat Steps 3 and 4.

3-14 July 1999 3000-A2-GA31-D0

Page 31

Installing the Carrier and Assembly Components

Alarm Output Connection

T o connect the alarm output to an external light or

buzzer:

• Install the alarm light or buzzer and voltage source

as described in the instructions received with the light/buzzer and voltage source.

• Use the two ALARM terminals labeled E1 and E2

at the rear of the carrier to install two external device leads.

Customer

Supplied

Voltage

Source

Rear of Cabinet

Carrier 6

Carrier 5

Customer Supplied Alarm Light or Buzzer

" Procedure

1. Use pliers to pull the plastic covers off the E1 and E2 terminals.

Plastic Cover

496-14656a-01

2. Insert the end of the wire coming from the voltage source and the end of a wire to be connected to the next carrier into the E1 terminal. It is not necessary to strip the wires.

Tube Slot

Hollow Tube

Wire Ends

Carrier 4

Carrier 3

Carrier 2

Carrier 1

SGRD

FGRD

ALARM

E3 E1 E2

496-14919b

3. Fit the wires into the slot in the terminal. Replace the plastic cap on the terminal, fitting the wires into the matching slot cut lengthwise in the cap.

NOTE

The last carrier to be connected has one incoming lead for each terminal.

Cover Slot

To Next Cabinet

495-12261-02

496-14919c

3-153000-A2-GA31-D0 July 1999

Page 32

COMSPHERE 3000 Series Carrier

4. Insert the other end of the wire to the next carrier’s E1 terminal, if any. Repeat Steps 2, 3, and 4 until all the carriers are linked together.

5. Use a Phillips screwdriver to push the cap firmly onto the terminal. As you seat the cap, the terminal cuts through the insulation on the wires and makes contact.

496-14919d

6. Insert the end of the wire coming from the alarm and the end of a wire to be connected to the next carrier into the E2 terminal, as described in Step 2.

7. Repeat Steps 3 through 5, connecting the E2 terminals instead, until all the carriers are linked together.

SDU Installation

An SDU is a circuit card designed for installation in the slot at the extreme left end of the carrier (Slot 0). The SDU is required for either or both of the following conditions:

• The devices in the carrier are to be controlled by an

NMS.

• Multiple carriers in a cabinet configuration are to

be controlled from a single SDCP.

The SDU is not required for a single carrier:

• Without an NMS interface or

• With an SDCP installed.

SDU

Status

Ok Alrm

Diag

Out

Dial Modem Control Interface

Connectors J1 and J2 are defined in Table A-12 in

Appendix A and provide an interface that can be used for:

• D-lead control signaling. Directly supported.

Associates a signal lead with each modem. Momentary connection of this lead to a common ground activates the signal.

• MI/MIC signaling. Supported by connecting all

MIC leads together and wiring them to Pin 25 (Signal Ground) on the corresponding J1 or J2 connector. Each MI lead can then be treated as a D-lead connection. Provides two leads:

— Mode Indicate (MI) — Mode Indicate Common (MIC) – usually via

Pins 3 and 6 of an 8-position modular VF connector

Activation of the signal is by momentary connection of these two leads. These two control signal methods are identical in function. Activation causes the associated dial modem to go off-hook in the Originate mode.

Spkr

SDU

496-12350-03

3-16 July 1999 3000-A2-GA31-D0

Page 33

Installing the Carrier and Assembly Components

The following table describes the SDU’s status indicators.

Label

OK green Normal operation. Alrm red Fault in SDU. Diag In yellow Incoming message from the NMS to

Diag Out yellow Outgoing message to the NMS from

Color Description

a DSU, DBM, or dial/lease modem.

SDU Modular Jacks and DIP Switches

At the rear of the SDU are four modular jacks:

• CC IN/DC OUT – 6-pin

• CC OUT/DC IN – 6-pin

• FP IN – 8-pin

• FP OUT – 8-pin

Below the four modular jacks are two sets of DIP (dual

in-line package) switches labeled S2 and S1.

• S2: Each device in a cabinet configuration must

have a unique identity. For Model 3611 with software version 3.nn and earlier, use the top DIP switch to set the carrier address.

• S1: Use the bottom DIP switch for CC or

DC operation of the NMS channel.

T o set the carrier addresses:

If the device is . . . Then . . .

Not Model 361 1 Enter the address manually

from the front panel.

Model 3611 with software

version of 4. Model 3611 with software

version of 3.nn or lower

or higher

Enter the address manually from the front panel.

Use the following procedure to set the S2 DIP switch for the carrier address.

" Procedure

SDU Circuit

Card

CC IN/DC OUT CC OUT/DC IN

FP IN FP OUT

S2 S1

ON OFF

Carrier

S2 –

Address

S1 –

4 3 2 1

Protocol Strap

495-14812

1. Set the carrier address S2-1, S2-2, and S2-3 DIP switches on the rear of the card, as specified in

T able 3-2. Note that each carrier in a cabinet must

have a unique address. Use T able 3-3 to determine the new carrier’s address.

For a . . .

Single carrier Leave the S2 switch address

set for Carrier 1 (factory default).

New cabinet with an NMS control channel

Carrier added to an existing control channel

Use the address Carrier 1 for the first carrier, Carrier 2 for the next, and go up to the Carrier 7 and 8 addresses for carriers in the second cabinet in a single installation.

For the next installation, the carrier address is numbered 1, but is on a different control channel.

Use Table 3-3 to determine the new carrier’s address.

Then . . .

3-173000-A2-GA31-D0 July 1999

Page 34

COMSPHERE 3000 Series Carrier

S2 DIP

2. Write the carrier number on the slot label located under each slot on the SDCP or cover plate.

Table 3-2

Carrier Address SDU S2 DIP Switches

S2 DIP

Switch

S2-4 — — — — — — — — S2-3 Off Off Off Off On On On On S2-2 Off Off On On Off Off On On S2-1 Off On Off On Off On Off On

1* 2 3 4 5 6 7 8

Carrier Number

* Factory default setting.

On is to the left as you face the rear of the carrier. Off is to the right.

Table 3-3

Carrier Address Assignment

Highest Existing Network Address

First New

arrier

DA TAPHONE II ADp

Address

SDU CC/DC Operation

Set the SDU S1 DIP switch on the rear of the circuit

card (T able 3-4).

If connecting to . . . Then set the . . .

Network control channel CC IN/CC OUT option Diagnostic channel of an

upstream device

Table 3-4

SDU S1 DIP Switch

S1 DIP Switch

S1-4 — — S1-3 — — S1-2 Off On S1-1 Off Off

CC IN/CC OUT* DC OUT/DC IN

* Factory default setting.

On is to the left from the rear of the carrier. Off is to the right.

DC OUT/DC IN option

1 1 – 48 01 – 32 2 51 – 88 33 – 64 3

91 – 128 65 – 96 4 131 – 168 97 – 128 5 171 – 208 129 – 160 6 21 1 – 248 161 – 192 7 251 – 288 193 – 224 8 291 – 328 225 – 256

* Start a new control channel when the carrier address

reaches this limit.

3-18 July 1999 3000-A2-GA31-D0

Page 35

Installing the Carrier and Assembly Components

Installing the SDU

" Procedure

1. Using a Phillips screwdriver, loosen the screw holding the circuit pack lock. Rotate the lock to the open position.

Circuit

Pack Lock

Closed

(Locked)

Open

(Unlocked)

Circuit

Card

Guides

2. With the latch in the open position, insert the circuit card into the top and bottom card guides of the slot labeled SDU.

3. Slide the SDU circuit card into the slot until the SDU backplane connector is seated firmly in P17.

P17-SDU Backplane Connector

P17

P18

496-14920

Latch

495-14813

4. Press the latch to secure the SDU in the carrier. Rotate the circuit pack lock back into the closed position, and tighten the screw.

3-193000-A2-GA31-D0 July 1999

Page 36

COMSPHERE 3000 Series Carrier

SDU Front Panel Connection

For a cabinet configuration with multiple carriers,

connect all the SDUs in a daisy chain.

" Procedure

1. Use an 8-pin modular cable to connect the FP OUT jack at the rear of the SDU in one carrier to

the FP IN jack of the SDU in the next carrier above or below the first connection.

2. Use another modular cable to connect the second SDU’s FP OUT jack to the next SDU’s FP IN jack. Continue to the last carrier in the cabinet.

In the accompanying illustration, Carrier 5 is chained in this way to Carrier 4, 4 to 3, 3 to 2, 2 to 1, and 1 to 6. The 8-pin modular cables are shown as solid black lines.

NOTE

If more than one SDCP is connected in the daisy chain, the first front panel will display data and be operational. The remaining front panels will display Slave on the SDCP.

After installing at least one device in the carrier, check that the SDU is functioning properly by polling selected devices for health and status.

• If there is an NMS connection, poll for health and

status. Refer to the NMS Connection section.

• If the SDCP is already installed, select each device

in turn and request its health and status. Refer to the

Testing the SDCP section on page 3-12.

To Next Cabinet

Rear of Cabinet

CC IN

Carrier 6

Carrier 5

SDCP

Installed at

Eye Level

Carrier 4

CC OUT

FP IN

FP OUT

SDU

CC IN

CC OUT

FP IN

FP OUT

SDU

CC IN

CC OUT

FP IN

FP OUT

SDU

Testing the SDU

When . . . Then . . .

The carrier’s power transformer unit is operating

The test completes All indicators go off except the

There is an NMS connection and the devices in the carrier are on the NMS or poll list

All indicators on the SDU’s faceplate light briefly as the SDU performs a self-test routine.

green OK indicator. The yellow Diag In and Diag Out

indicators also flash periodically as the NMS polls the devices in the carrier.

Carrier 3

Carrier 2

Carrier 1

CC IN

CC OUT

FP IN

FP OUT

16 SDU

SDU

CC IN

CC OUT

FP IN

FP OUT

CC IN

CC OUT

FP IN

FP OUT

From

NMS

496-12281-04

3-20 July 1999 3000-A2-GA31-D0

Page 37

Installing the Carrier and Assembly Components

NMS Connection

A COMSPHERE 3000 Series Carrier can be connected

to a variety of Network Management Systems:

• 6800 Series NMS

• 6700 Series NMS

• DATAPHONE II Diagnostic Controller (DC)

The control channel CC IN interface, a 6-pin modular

jack on the SDU, connects the NMS to the carrier. Each type of NMS requires a specific adapter to convert the control channel interface to the 6-pin modular jack required for the SDU.

This connection is via the control channel interface on the SDU, but all 16 slots in the carrier can only be controlled by one NMS. One control channel can manage up to eight carriers by daisy chaining from the CC IN to the CC OUT interfaces on the SDU in each carrier. Some protocols result in DC OUT and DC IN. Refer to the

SDU CC/DC Operation section, page 3-18.

NOTE

You cannot use an NMS connected through the SDU with either T1 CSUs or T1 DSU/CSUs.

Connecting the NMS

4. For a cabinet configuration with multiple carriers, connect all of the SDUs in a daisy chain, starting with the SDU connected to the NMS.

— Use a 6-pin modular telephone cord to connect

the CC OUT jack at the rear of this SDU to the CC IN jack of the SDU in the next carrier above or below it.

— Use another cord to connect the second SDU’s

CC OUT jack to the next SDU’s CC IN.

Continue the connections until the last carrier in the cabinet is connected.

To Next Cabinet

Rear of Cabinet

CC IN

Carrier 6

Carrier 5

SDCP

Installed at

Eye Level

Carrier 4

CC OUT

FP IN

FP OUT

SDU

CC IN

CC OUT

FP IN

FP OUT

SDU

CC IN

CC OUT

FP IN

FP OUT

SDU

" Procedure

1. Obtain the correct adapter. Refer to Table 3-5, page 3-22. Connect the adapter to the network management port on the NMS device (on the COMSPHERE and DATAPHONE II systems, the port is labeled DC OUT or DC IN).

2. Use a 6-pin modular telephone cord to connect the modular side of the adapter to the CC IN jack on the rear of the SDU in the carrier. In the accompanying illustration, 6-pin modular telephone cords are shown as dashed lines.

3. After at least one device has been installed in the carrier, check that the SDU is functioning properly by polling the device for health and status.

Carrier 3

Carrier 2

Carrier 1

CC IN

CC OUT

FP IN

FP OUT

16 SDU

SDU

CC IN

CC OUT

FP IN

FP OUT

CC IN

CC OUT

FP IN

FP OUT

From

NMS

496-12281-04

3-213000-A2-GA31-D0 July 1999

Page 38

COMSPHERE 3000 Series Carrier

Table 3-5

NMS Carrier Connections

SDU Jack

CC IN/ DC OUT

CC OUT/ DC IN

Connecting To Using Adapter and Cable Connections*

COMSPHERE 6800 Series NMS Central Site: Feature 6821-F1-513 includes 4400-F1-594 Adapter and

4400-F1-512 Cable Remote Site: Feature 6821-F1-518 Adapter

COMSPHERE 6700 Series NMS Cable provided with software package

COMSPHERE Model 3610 DSU Features 3600-F3-300 Hubbing Device and 4400-F1-51x Cable

Remote NMS connecting via DSU to carrier: NMS adapter cable Feature 3000-F2-510

COMSPHERE Models 38xx and 39xx Modems

Primary Channel Device Feature 6821-F1-518 Cable

DATAPHONE II Device – CC OUT Connector

DATAPHONE II Device – DC OUT Connector

COMSPHERE Model 3610 DSU Features 3600-F3-300 Hubbing Device and 4400-F1-51x Cable

Primary Channel CC Extension Features 4400-F1-592 Adapter & 4400-F1-51x Cable

Features 3600-F3-300 Hubbing Device and 4400-F1-51x Cable

Features 4400-F1-591 Adapter, 4400-F1-51x Cable, and 10-pin interface 4400-F1-577 Cable

Feature 4400-F1-590 Adapter and 4400-F1-51x Cable

CC OUT/ DC IN

CC OUT DATAPHONE II Device –

* 6-Pin Modular Cable Lengths for Feature 4400-F1-51

4400-F1-510 = 3i 4400-F1-511 = 10i 4400-F1-512 = 25i

DATAPHONE II Device – CC IN Connector

DC IN Connector

Feature 4400-F1-576 Cable

Feature 4400-F1-589 Cable

3-22 July 1999 3000-A2-GA31-D0

Page 39

T1 Auxiliary Backplane

T1 Auxiliary Backplane Installation 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Preinstallation Preparations 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installing the T1 Auxiliary Backplane 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installing the T1 Network Cable Retainer 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

T1 CSU and T1 DSU/CSU Network Interface 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

T1 CSU DTE Port 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

T1 CSU/DSU DTE Ports 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SNMP LAN Adapter Connectivity 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

T1 COM Port Connection to an External PC 4-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

T1 Auxiliary Backplane Installation

Mount the T1 auxiliary backplane assembly on either

side of the carrier to cover Slots 1–8 or 9–16.

NOTE

If modular DSUs or dial/lease modems with ‘‘gold finger” contacts are installed in the carrier, mount the T1 auxiliary backplane over Slots 9–16, or Slot 9 will become unusable.

When installing two T1 auxiliary backplanes on a carrier, use a diagnostic channel extension cable to connect them together . For more information about this cable, refer to Appendix B, T1 CSU and T1 DSU/CSU

Interface Connectors.

NOTE

Once installed, the T1 auxiliary backplane extends down into the Network Interface Module (NIM) area of the carrier. The extension of the backplane displaces a NIM card and prohibits the use of dial modems in any slot covered by the T1 auxiliary backplane assembly.

4-13000-A2-GA31-D0 July 1999

Page 40

COMSPHERE 3000 Series Carrier

Preinstallation Preparations

You will need the following tools:

• Phillips screwdriver

• Long-nose pliers

• 1/4″ nut driver

• 5/16″ nut driver

WARNING

Turn off the power to the 3000 Series Carrier before you install the T1 auxiliary backplane.

" Procedure

1. Remove the power transformer unit from the front of the 3000 Series Carrier. Refer to the Power

Transformer Unit Installation section in

Chapter 3.

2. Remove the NIM, if present, from the back of the 3000 Series Carrier. Refer to the NIM Installation section in Chapter 5.

Hexagonal Standoffs

P24

P26 P25 P24 P23

J2 P22 J1 P21

P20 P19

P23

P21

Installing the T1 Auxiliary Backplane

" Procedure

1. Determine the screw holes in which to mount the T1 auxiliary backplane, using the six screws provided.

The backplane has pointer symbols next to the center and bottom rows of screw holes.

496-14878

3. Remove the two hexagonal standoffs:

If the T1

auxiliary

backplane will

be mounted

over . . .

Slots 1–8 Connectors P23 and P24 Slots 9–16 Connectors P25 and P26

Then use the 1/4″ nut

driver to remove the

two hexagonal

standoffs from either

side of . . .

For the top row, use the same screw holes for mounting on either side.

If mounting

the backplane

Then use the . . .

on the . . .

Right side of the rear of the carrier

Left side of the rear of the carrier

Two screw holes with the pointers facing to the right ".

Use the holes with the pointers facing left A .

4-2 July 1999 3000-A2-GA31-D0

Page 41

SLOT 7 (15)

DIAGNOSTIC

CHAN

PORT

SLOT 7 (15)

SLT 8 (16)

DTE

SLOT 6 (14)

PORT1PORT

PORT2PORT

PORT

SLOT 6 (14)

SLOT 5 (13)

DTE DTE DTE DTE DTE DTE

MODEL NO. 3100-F1-900

COMCODE 107170409

DISCONNECT ALL TELEPHONE LINES AT THE NETWORK

CAUTION:

INTERFACE BEFORE TOUCHING OR SERVICING

CLOCK IN

SLOT 4 (12) SLOT 3 (11)

PORT

T1 NETWORK INTERFACE

Pointer

Symbol

DIAGNOSTIC

CHAN

PORT

SLOT 3 (11)

PORT2PORT

SLOT 2 (10)

SLOT 1 (9)

T1 NETWORK

INTERFACE

T1 Auxiliary Backplane

3. Install spacer assembly, using the long standoffs, nylon washer, nut, and screw.

Long

Nut

Nylon

Washer

Standoffs

Auxiliary

Backplane

PORT

SLOT 2 (10)

Screw

PORT

DTE

3000 Carrier

Backplane

496-15231

4. Insert and finger-tighten the two bottom row screws (3/4″ length).

496-14814-01

2. Align the backplane at the bottom and the corresponding holes on the bottom row of the backplane.

NOTE

If you are mounting the backplane on the left side, you must insert the small 3/8″ screw into the open slot at the lower left side of the backplane.

5. Insert and finger-tighten the two top row screws

and the two center row screws (1″ length).

6. Using a screwdriver, tighten all the screws. Do not use excessive force.

7. From the front of the carrier, use the long-nose pliers and a 5/16″ nut driver to install the nylon insulating washers and No. 5 nuts into the hexagonal standoffs. Tighten the nuts with the 5/16″ and 1/4″ nut drivers.

4-33000-A2-GA31-D0 July 1999

Page 42

COMSPHERE 3000 Series Carrier

Installing the T1 Network Cable Retainer

" Procedure

1. Ensure that the T1 network cable retainer’s rubber pad is properly attached to the black plastic. This plastic cable retainer secures the T1 connecting cable once it is plugged in.

NOTE

Do not install the cable retainer if you will be installing a Telco connector cable with a straight cable entry. Instead, secure this cable using the screw lock provided on each side of the T1 network connector.

2. To install the T1 network cable retainer:

— Insert one slotted leg, with the grooved slot

facing outward, into the larger recessed slot at the bottom of the T1 connector, and

— Slide it toward the center.

4. To open the cable retainer, insert a flathead screwdriver into the slot on the top and pry it open. The retainer unfolds, allowing connection of the cable.

T1 Network

Cable Retainer

496-14891

5. To lock the retainer in place, refold and snap it down over the top of the connector cable.

COMSPHERE

3000 Series

Carrier (Rear)

Auxiliary

Backplane

over Slots 9–16

Rubber

Pad

496-14385-02

3. Insert the other leg of the cable retainer (with the groove on top) into the larger recessed slot, then slide it toward the left.

Cable

Retainer

T1 Network

Cable

4-4 July 1999 3000-A2-GA31-D0

496-14386-03

Page 43

T1 Auxiliary Backplane

T1 CSU and T1 DSU/CSU Network Interface

The T1 auxiliary backplane, installed over either Slots 1–8 or Slots 9–16 at the back of a 3000 Series Carrier, provides the interfaces for T1 CSUs and/or T1 DSU/CSUs to a T1 network.

The T1 CSU and T1 DSU/CSU network interface is provided by one 50-pin connector on the T1 auxiliary backplane on the back of the carrier. This connector serves eight contiguous slots in the carrier: either Slots 1–8 or Slots 9–16.

Depending on your configuration, use one of the following schemes for the T1 CSU and T1 DSU/CSU network interface.

If a 50-pin cable is . . .

Attached to a 66A punchdown block

Plugged into a feature 3100-F1-930 adapter cable, which provides 8 non-keyed modular plugs using Pins 1, 2, 4, and 5

The network interface cable can be connected to additional network interface cables, up to the maximum of 100 feet.

T o connect the T1 CSU and T1 DSU/CSU network interface:

" Procedure

1. Connect the network cable to the carrier.

Then . . .

Hardwire the circuits to the block.

Connect the T1 CSU or T1 DSU/CSU to a standard network interface.

T1 CSU DTE Port

The T1 auxiliary backplane provides a DB15 socket connector for each CSU. The DTE cable is normally supplied by the DTE vendor. For more information, see the ACCULINK 3150 and 3151 CSU Operator’s Guide.

T1 DSU/CSU DTE Ports

The T1 auxiliary backplane provides connections for a DSX-1 drop/insert port and two synchronous data ports for each DSU/CSU.

The drop/insert interface is a DB15 socket connector.

The synchronous ports may be used for the following interfaces:

• EIA-530-A

• V.35

• RS-449

• X.21

The interface is determined by the cable and adapter used, and the Port T ype configuration option selected. See Appendix D, Equipment List, and the Port Configuration Options table in the ACCULINK 3160, 3161, 3164, and 3165 DSU/CSU Operator’s Guide.

V.35 Adapters

In applications where V.35 adapters are used on both data ports, do not use a short V.35 adapter plug for both ports. Use a V.35 adapter cable (feature 3100-F1-570) for the second DTE port. Otherwise it may be impossible to fasten the connectors.

2. Choose one of the following:

If you are

using . . .

The Telco connector cable

A straight-in connector

3. Connect the individual cables with 8-pin modular plugs into the adapter for each T1 line.

Install the black plastic network cable retainer.

Use a small screwdriver to engage and tighten the screws.

Then . . .

SNMP LAN Adapter Connectivity

The T1 DSU/CSU can be configured to provide SNMP connectivity to an NMS using an external LAN (Local Area Network) adapter. The SNMP LAN Adapter is an interface device that allows SNMP managed devices to be connected to Ethernet or T oken Ring LANs. For further details, refer to:

• Appendix D, Equipment List.

• The ACCULINK 3160, 3161, 3164, and 3165

DSU/CSU Operator’ s Guide.

4-53000-A2-GA31-D0 July 1999

Page 44

COMSPHERE 3000 Series Carrier

T1 COM Port Connection to an External PC

Communication between the T1 CSUs and T1 DSU/CSUs in a 3000 Series Carrier and an external PC occurs through a shared communication (COM) port. The PC can be attached locally or through an external modem.

• T1 CSUs and T1 DSU/CSUs do not have their own

COM port for external access. One of the T1 devices in the carrier must be selected as the master communication port.

• The selected T1 device provides the COM port for

all the T1 CSUs and T1 DSU/CSUs in the carrier.

• The T1 device is configured, via COM port

configuration options, so that Port 2 on the T1 auxiliary backplane is the COM port for the carrier.

• Using the front panel emulation (FPE) diskette, the

attached PC can then access any device in that carrier through the shared COM port on the master communication unit.

The figure below shows the COM port adapter.

Carrier

Connection

PC Connection

COM Port

Adapter

496-14418-01

Figure 4-1 shows the adapter cable used on the T1 auxiliary backplane to make the COM port connection for the master communication unit.

DIAGNOSTIC

CHAN

PORT1PORT

SLOT 6 (14)

CAUTION:

PORT1PORT

PORT

SLOT 5 (13)

DISCONNECT ALL TELEPHONE LINES AT THE NETWORK INTERFACE BEFORE TOUCHING OR SERVICING

PORT

PORT2PORT

PORT

SLOT 7 (15)

SLT 8 (16)

DTE DTE DTE DTE DTE DTE

DTE

MODEL NO. 3100-F1-900

COMCODE

107170409

COM Port Adapter

CLOCK IN

PORT

SLOT 4 (12) SLOT 3 (11)

Diagnostic Channel

Extension Cable

PORT2PORT

T1 NETWORK

INTERFACE

SLOT 2 (10)

PORT

SLOT 1 (9)

DTE

PORT

PORT1PORT

PORT2PORT

SLOT 6 (14)

DTE DTE DTE DTE DTE DTE

MODEL NO. 3100-F1-900

COMCODE 107170409

CAUTION:

SLT 8 (16)

PORT

SLOT 7 (15)

DTE

DIAGNOSTIC

CHAN

CLOCK IN

PORT1PORT

PORT

SLOT 4 (12) SLOT 3 (11)

SLOT 5 (13)

DISCONNECT ALL TELEPHONE LINES AT THE NETWORK INTERFACE BEFORE TOUCHING OR SERVICING

DIAGNOSTIC

CHAN

PORT

PORT2PORT

PORT

T1 NETWORK

INTERFACE

SLOT 2 (10)

PORT

SLOT 1 (9)

DTE

DB9 to 8-Pin Modular

14' Adapter Cable

496-14417-02

Figure 4-1. T1 COM Port Adapter and Cable with PC Attached

4-6 July 1999 3000-A2-GA31-D0

Page 45

Connecting to the Network

Overview 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Device Arrangements in the Carrier 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Mixing Devices in a Carrier Half 5-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Network Cables 5-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Interface Connectors 5-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Digital or Analog Leased-Line Network Interfaces 5-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Network Interface Module (NIM) Connectors 5-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Dial Network Interface 5-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ISDN and 2-Wire Switched 56 kbps Network Interface 5-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-Wire Switched 56 kbps Network Interface 5-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

NIM Installation 5-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installing the 24-Port NIM 5-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Cabling the 24-Port NIM 5-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Overview

This chapter describes the following:

• Arrangement of devices in the carrier

• T ypes of network interface connectors

• Network interface installation procedures

Device Arrangements in the Carrier

Verify that all devices installed in each half of the carrier have compatible interfaces.

You can populate COMSPHERE 3000 Series Carriers in the following configurations:

• All the same devices:

— All DSUs and DBMs, except 4-wire Switched

56 kbps DBM — Dial/lease modems — T1 CSUs and T1 DSU/CSUs

• Devices split within the carrier (all dial/lease

modems in Slots 1–8 and all DSUs in Slots 9–16)

• Devices mixed within the same half of the carrier

(e.g., five dial/lease modems and three DSUs)

5-13000-A2-GA31-D0 July 1999

Page 46

COMSPHERE 3000 Series Carrier

Mixing Devices in a Carrier Half

When devices are mixed, such as DSUs with dial/lease modems, it is recommended that they be clustered together in a carrier half. A carrier half is either Slots 1–8 or Slots 9–16. From the front of the carrier, install dial/lease modems starting with Slot 1.

If you populate the same

carrier half with all . . .

Dial/lease modems, DSUs, and DSUs with ISDN, 2-wire switched 56 kbps, or V.32 analog DBM

DSUs with programmable V.32 analog DBM

DSUs with 4-wire switched 56 kbps backup capability

Triple-modem circuit cards 24-port interface

T1 CSU and T1 DSU/CSU T1 auxiliary

Then use a . . .

Permissive DDD NIM.

Programmable DDD NIM.

4-wire switched 56 kbps NIM.

connector and 24-port NIM.

backplane.

Network Cables

T able 5-1 shows the network cables available.

Figure 5-1 illustrates several network cabling connections.

Network cables are used for NIM connections, network connections (P21 and P22), and the T1 auxiliary backplane network connections. The straight-in network interface cable is recommended as no cable tie wrap is required. When using the right-angle cable, use the tie wrap as shown below.

The T1 auxiliary backplane network cable is attached with a T1 network cable retainer. Refer to the Installing

the T1 Network Cable Retainer section of Chapter 4 for

details.

Table 5-1

Network Cabling Connectors

Straight-in Network

Cable

10′ – Feature 3000-F1-013 10′ – Feature 4400-F1-501 30′ – Feature 3000-F1-014 30′ – Feature 4400-F1-504

Right-angle Network

Cable

NOTE

Dial/lease modems which use the 24-port NIM must not be installed with DSUs in the same half of the carrier.

Right-Angle

Network Interface

Cable with

Tie Wrap

496-14905

5-2 July 1999 3000-A2-GA31-D0

Page 47

Connecting to the Network

NIM and

Right-Angle

Cable

(Slots 9–16)

P26 P25

J2 P22 J1 P21

Network Cable

for Slots 9–16

Figure 5-1. NIM and Cables Example

Interface Connectors

The methods for providing network connection for

devices in the carrier are:

• Via two 50-pin digital network or leased-line

interface connectors to the following:

— DDS (Digital Data Service)

P20 P19

NIM and

Straight-In (Slots 1–8)

Network Cable

for Slots 1–8

496-13604-05

Digital or Analog Leased-Line Network Interfaces

Use one of the following for the digital/analog leased-line interfaces:

If a 50-pin cable is

attached to . . .

Then . . .

Cable

— LADS (Local Area Data Set) — Analog leased-line networks

• Through Network Interface Modules (NIMs) to the

following:

— Dial network — ISDN — 2-wire switched 56 kbps — 4-wire switched 56 kbps

• Using one 50-pin connector on the T1 auxiliary

backplane for T1 CSUs or T1 DSUs/CSUs.

A 66A punchdown block Hardwire the circuits to the

block.

A RJ48T-type network interface adapter cable, feature 3600-F2-503, which allows from 1 to 12 DDS circuits to be placed on the 50-pin connector

An adapter cable, feature 3600-F2-503, to provide 8 keyed modular connectors using Pins 1, 2, 7, and 8

An adapter cable, feature 3000-F1-009, with eight 6-pin modular plugs

Tell the service provider that only the first 8 circuit positions are used in each 50-pin connection. Do not use a leased-line modem in the same carrier half.

Connect the DSU to a standard DDS network interface (RJ48S); provides a JM8-style leased-line modem connection. Only mix DSUs and leased-line modems if the analog leased-line network interface is a JM8.

Only use for a DDS/leased-line (Canada).

5-33000-A2-GA31-D0 July 1999

Page 48

COMSPHERE 3000 Series Carrier

Use the following procedure for digital network or

analog leased-line interface installation.

" Procedure

To install in . . . You . . .

The U.S. DDS network

Canada DDS network

Connect the network cables, feature 3600-F2-503 (50-pin mass termination line cable), to the carrier.

Use the provided special network interface adapter cable, feature 3000-F1-009.

1. Use a small screwdriver to tighten the screw.

2. Attach a cable tie to the cable near the hood of the carrier’s cable-tie attachment point. If a “straight-in” cable is used, disconnect the cable tie, remove the screw and cable tie mount, and fasten the cable with two screws.

3. Connect the individual cables with 8-pin modular plugs into the adapter for each DDS line.

Network Interface Module

Dial Network Interface

T wo optional NIMs on the back of the carrier both provide the direct distance dialing (DDD) network interface.

Depending upon your configuration, use one of the following for a dial/dial backup interface:

• An RJ21X (permissive) 50-pin connector, or

• An RJ27X (programmable) 50-pin connector

The two NIMs can be different types and operate independently of one another. Appendix A provides pin assignments. Additional features available for both programmable and permissive NIMs are:

• Service Line. Permits an extra dial line to be

connected to the carrier. NIMs with this feature have two Service Line modular connectors, which can be used in sharing a single dial line between:

— T wo halves of the carrier (Slots 1–8 and

Slots 9–16) and

— Multiple carriers.

• Make Busy.

Check that the dial/lease modem’s leased-line connection occurred on the proper pins. If not, a cross-connection may be required at the network interface.

(NIM) Connectors

NIMs are installed over the connectors labeled P23 and P24 (right side) or P25 and P26 (left side). The NIMs provide the interfaces for dial backup modules and dial/lease modems to the following:

• Dial network (PSTN)

• ISDN network

• 2-wire or 4-wire switched 56 kbps digital service

NIMs have the following characteristics:

• T wo different NIMs can be mounted onto the

carrier and be independent of one another.

• Each NIM serves eight contiguous slots in the

carrier:

— One NIM for Slots 1–8 and — One NIM for Slots 9–16

• Each NIM determines the operating characteristics

of the interfaces to the eight slots it serves.

If a 50-pin cable is

attached to a . . .

66A punchdown block Hardwire the circuits to

the block.*

Permissive DDM NIM to connect to an adapter cable, feature 3600-F2-505

Programmable NIM to connect to an DDD adapter cable, feature 3600-F2-504

Programmable NIM to connect to a DDD adapter cable, feature 3600-F2-504

RJ21X (permissive) or RJ27X (programmable) dial network interface arrangement provided by the dial service provider

* The connection type is defined by the NIM installed in

that half of the carrier.

Install only DSU/DBM devices in the Permissive mode in that half.

Configure all devices to the dial lines as a programmable connection in that half.

Install only DSU/DBM devices in the Programmable mode.

Verify that the first eight lines are wired in each 50-pin connector.

Then . . .

5-4 July 1999 3000-A2-GA31-D0

Page 49

Connecting to the Network

ISDN and 2-Wire Switched 56 kbps Network Interface

An optional 2-wire switched 56 kbps NIM, which has a 50-pin connector on the back of the carrier, provides the switched 56 kbps digital permissive NIM for ISDN, 2-wire switched 56 kbps, and analog service. See

Appendix A for pin assignments.

Depending upon your configuration, use one of the following interconnection schemes available for a 2-wire switched 56 kbps network interface:

If a 50-pin cable from

a RJ21X NIM is . . .

Attached to a 66A punchdown block

Connected to a feature 3600-F2-505 adapter cable

* The connection type is defined by the NIM installed in

that half of the carrier.

Hardwire the circuits to the block.*

Install only ISDN and 2-wire switched 56 kbps devices in that half.

Then . . .

4-Wire Switched 56 kbps Network Interface

An optional 4-wire switched 56 kbps NIM, which has an SJA57-type connector on the back of the carrier, provides the 4-wire switched 56 kbps digital network interface. Appendix A provides pin assignments.

Depending upon your configuration, use one of the following interconnection schemes available for a 4-wire switched 56 kbps network interface:

If a 50-pin cable

is . . .

Attached to a 66A punchdown block

Plugged into a feature 3600-F2-503 adapter cable, which provides 8 keyed modular connectors using Pins 1, 2, 7, and 8

* The connection type is defined by the NIM installed in

that half of the carrier.

Hardwire the circuits to the block.*

Connect the DSU to a standard DDS network interface and provide the 4-wire switched 56 kbps digital connection for the DSU and 4-wire switched 56 kbps

Then . . .

DBM.

NOTE

Do not insert a 2-wire switched 56 kbps plug into an RJ11C jack, which is intended for analog PSTN devices. Plugging into an RJ11C jack may cause equipment damage and harm to the telephone network.

5-53000-A2-GA31-D0 July 1999

Page 50

COMSPHERE 3000 Series Carrier

NIM Installation

T o install the NIM providing the dial interface for the DBMs, dial/lease modems, or the switched 56 kbps network interface for the ISDN, 2-wire, or 4-wire switched 56 kbps DBM:

" Procedure

1. Start with Slots 1–8.

2. Seat the NIM on connectors P23 and P24 on the rear of the carrier (Figure 5-2).

3. Use the four screws provided with the module to secure it to the carrier.

4. Connect a 50-pin mass termination line cable to the module. Secure the cable with the cable tie that is provided.

5. Choose one of the following:

If you

have a . . .

Dial interface Dial circuit terminations

Switched 56 kbps network interface for 2-wire switched 56 kbps, ISDN or analog

NIM with two 6-position Service Line modular connectors for dial/lease modems

Then connect the

line side of the cable to the . . .

assigned to the DBMs and dial/lease modems in carrier Slots 1–8.

2-wire switched 56 kbps circuit terminations assigned to the switched 56 kbps DBM in carrier Slots 1–8.

Proper dial line or NIM modular connector. The modular plugs are labeled 1–8, and correspond to the devices in carrier slot positions.

6. To install the NIM for any DSUs, DBMs, or dial/lease modems to be installed in Slots 9–16, repeat Steps 1 through 5. Seat the NIM on connectors P25 and P26 on the rear of the carrier.

Network

Interface

P26 P25 P24 P23

J2 P22 J1 P21

P20 P19

To P23

or P25

To P24

or P26

Module

(NIM)

496-13589-05

Figure 5-2. Network Interface Module Installation

5-6 July 1999 3000-A2-GA31-D0

Page 51

Connecting to the Network

Installing the 24-Port NIM

The 24-port NIM includes a NIM cover and cable.

" Procedure

1. Fasten the NIM to the carrier with the four standoffs provided. See Figure 5-4.

2. Position the NIM cover over the NIM.

3. Fasten the NIM cover in place with the four screws provided.

Cabling the 24-Port NIM

Connect one end of the short ribbon cable to the 50-pin connector at the bottom of the NIM. Connect the other end to P21 (on the right side of the carrier) or P22 (on the left side of the carrier). See Figure 5-3. Connect a network interface cable to the 50-pin connector in the middle of the NIM.

If a 50-pin cable is . . .

Attached to a 66A punchdown block

Plugged into a feature 3821-F1-500 adapter cable

Network Interface

Cable

P21 or P22

Then . . .

Hardwire the circuits to the block.

Connect the 24 RJ1 1C 6-pin cables.

Short

Ribbon

Cable

496-14798a

P26 P25

J2 P22

Figure 5-3. Cabling the 24-Port NIM

Standoff

P20 P19

P24

P23

P21

To P23 or P25

To P24

or P26

Figure 5-4. Installing the 24-Port NIM

NIM Cover

Network

Interface

Module

(NIM)

496-14854a

5-73000-A2-GA31-D0 July 1999

Page 52

COMSPHERE 3000 Series Carrier

5-8 July 1999 3000-A2-GA31-D0

Page 53

Circuit Card Installation

Overview 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Preinstallation Inspection 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Before You Begin 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Modular Circuit Card Interface Connectors 6-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Rear Connector Plates 6-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installing a Rear Connector Plate 6-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DTE Connector Modules 6-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installing a 6-Port DTE Connector Module 6-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

24-Port DTE Interface Assembly 6-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Modular Circuit Card Installation 6-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

T1 CSU and T1 DSU/CSU Circuit Card Installation 6-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Filler Panel Installation 6-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Ferrite Choke Installation 6-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Overview

This chapter describes installation instructions for the

following device types:

• Modular circuit cards:

— DSUs — DSU/TDMs — DSU/MCMPs — Dial/lease modems

• T1 CSUs

• T1 DSU/CSUs

Preinstallation Inspection

Check the circuit card for physical damage. For

modular circuit cards:

• Ensure that the connector pins are not damaged.

• Check the rear connector plate or connector module

for damage.

Before You Begin

Before installing a circuit card, verify that you have:

• Installed any required Network Interface Modules

(NIMs).

• Installed a T1 auxiliary backplane for T1 CSUs or

T1 DSU/CSUs.

• Changed any required default hardware strap

settings (refer to the device’s manual).

If you have a . . .

T1 CSU or T1 DSU/CSU

DSU, DBM, or Dial/lease modem

Then go to the . . .

T1 CSU and T1 DSU/CSU Circuit Card Installation

page 6-7.

Modular Circuit Card Interface Connectors

section on

section on page 6-2.

• Check the V.35 adapter for damage.

Report any damage immediately to your shipping

representative and also to your service representative.

6-13000-A2-GA31-D0 July 1999

Page 54

COMSPHERE 3000 Series Carrier

Modular Circuit Card Interface Connectors

A circuit card requires either a rear connector plate or a

connector module to provide DTE interfaces.

Modular circuit cards have ‘‘gold finger” contacts on their rear edge, which allows their removal from the carrier without disturbing the DTE cables.

Modular circuit cards include:

• DSUs, DBMs, and dial/lease modems, which

occupy one slot in the carrier, and require a rear connector plate (Figure 6-1).

• DSU card with a MUX card attached, which

requires a connector module. The two cards are physically connected and occupy two consecutive slots in the carrier (Figure 6-2).

• Dial/lease modems, which occupy two slots in the

carrier and require a multiport connector module (Figure 6-3).

"Gold

Fingers"

Modular

DSU-TDM

or DSU-MCMP

Backplane Connector

495-14839

Figure 6-2. DSU with MUX Card Attached

Modular DSU, DBM, or

Dial/Lease Modem

Figure 6-1. Modular Circuit Card

"Gold

Fingers"

Backplane

Connector

495-14837

"Gold

Fingers"

Multiport

Modem

496-14893

Figure 6-3. Dial/Lease 2-Slot Modem Cards

6-2 July 1999 3000-A2-GA31-D0

Page 55

Circuit Card Installation

Rear Connector Plates

• Rear connector plates for single-port devices have

two 25-pin DTE connectors:

— A 25-pin EIA-232-D/V.24 connector. — A 25-pin ITU V.35 connector, which can be

used with a modular DSU V.35 adapter plug or V.35 adapter cable (feature 3000-F1-510). Either adapter converts the 25-pin V.35 interface to the standard 34-pin V.35 interface.

• Rear connector plates for cards with two DSUs

have two 25-pin ITU V.35 connectors, and are shipped with two modular DSU V.35 adapters.

Figure 6-4 shows rear connector plates:

• Without a grounding clip (used for DSUs, DBMs,

and some dial/lease modems).

• With a grounding clip (used for some dial/lease

modems).

Inscriptions on the connector plate may be different from those shown.

Installing a Rear Connector Plate

" Procedure

1. At the rear of the carrier, place the tab on the connector plate in the slotted groove on the carrier’s backplane. The connector plate must use the same slot position intended for the device.

2. Loosely fasten the screw, allowing for a slight adjustment when installing the device.

The connector plate is installed over a slot on the rear of the carrier (Figure 6-5). Install two rear connector plates over two consecutive slots for dial/lease multiport modems.

25-Pin

DTE Connectors

Single Port

Connector Plates

EIA232/V.24

25-Pin

DTE

Connectors

(3800)

(3600/3500)

V.35

RS366A/V.25

DSU or

DBM

(3800)

(3600/3500)

V.35

RS366A/V.25

Dial/Lease

Modem

Figure 6-4. Rear Connector Plate with

and without a Grounding Clip

Grounding

Clip

496-14881

EIA232/V.24

(3800)

(3600/3500)

V.35

RS366A/V.25

P21

496-14906

Figure 6-5. Rear Connector Plate Installation

6-33000-A2-GA31-D0 July 1999

Page 56

COMSPHERE 3000 Series Carrier

DTE Connector Modules

DSUs with MUX cards and Model 3821Plus two-slot

triple modem use 6-port connector modules.

A DSU with a MUX card attached uses a rear connector module for six-port TDM or MCMP with the alternate port option (Figure 6-6). The connector module has:

• Six ports; each port is a 25-pin connector which

provides the EIA-232 DTE interface.

The 25-pin connectors can be used with a V.35 adapter plug or V.35 adapter cable (feature 3000-F1-510). Either adapter converts the 25-pin V.35 interface to the standard 34-pin V.35 interface.

• A 26-pin high-density D-type connector at the top,

which provides the V.35 interface for either Port 1 or an aggregate data path. Use a 6-port V.35 interconnect cable (supplied by the customer) to convert the 26-pin high-density D-type interface to the standard 34-pin V.35 interface.

26-Pin

High-Density

D-Type

Connector

The two-slot triple modem uses a 6-port DTE interface connector module as shown in Figure 6-7. The connector module uses one of the following cables:

• An RS-232 cable with DB25 connectors for each of

six ports labeled A, B, and C, or

• An 8-pin modular cable with two DB25 to

8-position modular adapters.

3000 Series

Carrier

DTE Interface

Connector

Module

Six 25-Pin

DTE

Connectors

495-14840

Figure 6-6. DSU with MUX Connector Module

Tabs

Slots

496-14876

Figure 6-7. Triple Modem

Connector Module

6-4 July 1999 3000-A2-GA31-D0

Page 57

Circuit Card Installation

Installing a 6-Port DTE Connector Module

" Procedure

1. At the rear of the carrier, set the two tabs into the slotted grooves on the carrier’s backplane. The connector module must use the same slot positions intended for the device.

NOTE

When installing a DDD NIM and a DSU with a MUX card, install the connector module where it will not interfere with the NIM’s J3 and J4 modular connectors.

2. Insert the screws provided, but do not completely tighten them until the circuit cards are installed.

See the Modular Circuit Card Installation section, page 6-6.

24-Port DTE Interface Assembly

The eight-slot DTE interface assembly can be mounted on the left or the right side of the carrier. If you are installing only one interface assembly, it must be mounted on the same side as an installed NIM. Refer to the NIM

Installation section of Chapter 5.

" Procedure

1. Feed the eight tabs at the bottom of the DTE interface assembly into the slots on the left or right side of the carrier.

3000 Series

Carrier

Slots

Tabs

24-Port

Interface

Assembly

496-14799a

2. Insert the screws provided, but do not completely tighten them until the circuit cards are installed.

See the Modular Circuit Card Installation section, page 6-6.

6-53000-A2-GA31-D0 July 1999

Page 58

COMSPHERE 3000 Series Carrier

Modular Circuit Card Installation

NOTE

For a DSU with TDM or MCMP, there are two circuit cards with two faceplates that are physically attached. These occupy two slots in the carrier, but are installed as one unit.

" Procedure

1. Using a Phillips screwdriver, loosen the screw holding the circuit pack lock. For a DSU with TDM or MCMP, there are two circuit pack locks. Rotate the lock to the open position and open the latch(es).

Circuit

Pack Lock

2. At the front of the carrier, hold the circuit card vertically with the latch on its faceplate in the open position. Then, insert the circuit card into the top and bottom circuit card guides.

495-14797

Closed

(Locked)

Open

(Unlocked)

Latch

Circuit

Card

Guides

495-14813

3. Slide the circuit card into the slot. Align the rear connector plate, until the connectors seat firmly into the back of the carrier.

4. Press the faceplate latch(es) to secure the circuit card into the rear connector plate.

5. Rotate the circuit pack lock(s) into the closed position, and tighten the screw.

6. If power is applied to the carrier:

— The unit performs a self-test routine. — After several seconds, the circuit card

completes its power-up self-test in which all LEDs light.

6-6 July 1999 3000-A2-GA31-D0

Page 59

Circuit Card Installation

NOTE

To ensure proper alignment of the circuit card(s) and rear connector plate or connector module, perform Step 7 only during initial installation.

After that, remove or install modular circuit cards from the front of the carrier.

7. Return to the rear of the carrier and tighten either the:

— Screw on the rear connector plate, or — Two screws on the connector module.

Verify that the circuit card is firmly seated to ensure a

connection with the rear connector plate.

After installing the circuit card, do the following:

• Connect the cables.

• Install the ferrite chokes, if supplied; see Ferrite

Choke Installation on page 6-8.

66-Pin

Auxiliary Backplane Connector

CSU

Select

OK Fail Test Sig

Net

OOF Alrm EER Sig

DTE

OOF Alrm PDB BPV

Net

Out

Net

CSU

3151

Figure 6-8. T1 CSU Circuit Card

30-Pin

Backplane

Connector

496-14852-02

• Configure the unit as described in the device’s

documentation.

• Perform verification testing as described in the

device’s documentation.

T1 CSU and T1 DSU/CSU Circuit Card Installation

NOTE

Before installing a T1 CSU or T1 DSU/CSU circuit card in a carrier, you must first install a T1 auxiliary backplane. Refer to the

T1 Auxiliary Backplane

Installation

After installing the T1 auxiliary backplane, you are ready to install a T1 CSU or T1 DSU/CSU circuit card (Figures 6-8 and 6-9).

section in Chapter 4.

66-Pin

Auxiliary Backplane Connector

DSU/CSU

Select

OK Fail Test Sig

Net

OOF Alrm

DTR

EER

TXD

Sig

RXD

OOF

CTS

Alrm

RTS

PDB BPV

Net

Out

Net

Backplane Connector

DSU

DSU/CSU

3161

Figure 6-9. T1 DSU/CSU Circuit Cards

30-Pin

496-14853-02

6-73000-A2-GA31-D0 July 1999

Page 60

COMSPHERE 3000 Series Carrier

T o install a T1 CSU or T1 DSU/CSU circuit card:

" Procedure

1. Use a Phillips screwdriver to loosen the screw holding the circuit pack lock and rotate the lock to the open position. Open the latch.

2. Hold the circuit card vertically at the front of the carrier, with the faceplate latch in the open position.

3. Insert the card into the top and bottom card guides of one of the slots numbered 1–16.

4. Slide the card into the slot. The ejector latch lifts up as it engages the metal flange.

5. Press the latch up until it clicks into the locked position to secure the circuit card in the carrier.

6. Rotate the circuit pack lock back into the closed position and tighten the screw.

Verify that the circuit card is firmly seated to ensure a

connection with the rear connector plate.

4. Insert the blank circuit card into the top and bottom card guides of the empty slot, and tighten the circuit pack lock screw.

Ferrite Choke Installation

One ferrite choke is provided with every:

• Model 3511, 3611, and 3616 DSU with a Dial

Backup Module (DBM). Attach the ferrite choke to the DTE cable.

• DBM shipped as a separate feature. Attach the

ferrite choke to the DTE cable for a carrier installation, and discard it for a standalone unit.

T wo or more ferrite chokes are provided with every:

• Model 3000 Carrier assembly with an ac power

transformer unit. Attach one ferrite choke to the ac power cord and one to each network cable.

• Model 3611 MUX circuit card. Attach one ferrite

choke to each DTE cable.

• Six-Port MUX Adapter module. Attach one ferrite

choke to each DTE cable.

Filler Panel Installation

Order and install a filler panel for each unfilled slot in the carrier to ensure compliance with safety requirements. The filler panel is a blank faceplate equipped with:

• An abbreviated circuit card

• A latch to secure it to the carrier

• A circuit pack lock to prevent it from being

removed from the carrier without use of a tool

" Procedure

1. Use a Phillips screwdriver to loosen the screw holding the circuit pack lock and rotate the lock to the open position.

2. Open the latch.

3. Hold the filler panel vertically at the front of the carrier, with the faceplate latch in the open position.

CAUTION

All ferrite chokes that are supplied must be installed following these instructions to ensure compliance with FCC Part 15 Rules.

6-8 July 1999 3000-A2-GA31-D0

Page 61

Circuit Card Installation

T o install the ferrite choke on the DTE interface,

network, or power cable:

" Procedure

1. Pull up on the latch to open the ferrite choke.

2. Place the ferrite choke around the cable as close to the cable connector as possible.

3. Close the two halves around the cable and snap the ferrite choke shut.

4. Press down on the plastic latch to secure the ferrite choke in place around the cable.

Ferrite Choke for

V.32 DBM or DBM-V

5. For the ac power cable or other thin cable, secure the ferrite choke in place with a cable tie wrap.

Ferrite Choke

Tie

Wrap

Plastic

Latch

496-14820-01

Refer to Figure 6-10 for examples of installed ferrite

chokes.

DTE

Connector

EIA-232

Interface

3600

V.35

Interface

NIM

V.35

Cable

Network Cable

PORT 1

PORT 2

PORT 3

PORT 4

PORT 5

PORT 6

Cable

Tie Wrap

for AC

Power Cable

Ferrite Choke

6-Port

MUX

Adapter

99-15235-02

Figure 6-10. Examples of Installed Ferrite Chokes, Carrier Rear View

6-93000-A2-GA31-D0 July 1999

Page 62

COMSPHERE 3000 Series Carrier

This page intentionally left blank.

6-10 July 1999 3000-A2-GA31-D0

Page 63

Overview A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Digital/Lease Network Connections A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

NIM Interface Connections A-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

NMS Interface Connections A-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

50-Pin Modular Plugs A-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Carrier Backplane Connectors A-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

D-Lead Control Interface A-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Overview

This appendix provides the interface connections, pin

assignments, and other information for the following:

• Digital or leased-line network connection

• NIMs

• SDU

• 50-pin modular plug

Pin Assignments

Number 50

I I I I I I

I I I I I I I I

496-10971-02

Number 1

• Carrier backplane connectors

• D-Lead control interface

Pin assignments vary from one product to another. For information on a specific cable or connector, see the appropriate installation or user’s manual for the product.

Digital/Lease Network Connections

T wo 50-pin connectors on the backplane provide an interface between the carrier and the digital/lease network.

• Figure A-1 is a diagram of the 50-pin digital or

analog leased-line network interface connector.

• T able A-1 provides the digital or analog leased-line

network interface connector pin assignments.

Figure A-1. 50-Pin Cable Connector

Table A-1

Digital or Analog

Leased-Line Network Interface

Pin Assignments

Slot

1 or 9 26 1 27 2 2 or 10 28 3 29 4 3 or 1 1 30 5 31 6 4 or 12 32 7 33 8 5 or 13 34 9 35 10 6 or 14 36 11 37 12 7 or 15 38 13 39 14 8 or 16 40 15 41 16

Receive Circuits Transmit Circuits

T R T1 R1

A-13000-A2-GA31-D0 July 1999

Page 64

COMSPHERE 3000 Series Carrier

NIM Interface Connections

One or two optional 50-pin NIMs provide the interface to the dial network or the 2-wire switched 56 kbps digital network.

• T able A-2 provides the permissive dial NIM pin

assignments for dial, ISDN, and 2-wire switched 56 kbps applications.

• T able A-3 supplies the programmable dial NIM pin

assignments.

• T able A-4 provides the 4-wire switched 56 kbps

NIM pin assignments.

• T able A-5 includes the 24-port modem pin

assignments.

Table A-2

RJ21X Permissive Dial NIM Used for

Dial, ISDN, and 2-Wire Switched 56 kbps NIM

Pin Assignments

T R

1 or 9 26 1 2 or 10 27 2 3 or 1 1 28 3 4 or 12 29 4 5 or 13 30 5 6 or 14 31 6 7 or 15 32 7 8 or 16 33 8

Table A-3

RJ27X Programmable Dial NIM

Pin Assignments

Slot

T R PR PC

1 or 9 27 2 28 3 2 or 10 30 5 31 6 3 or 1 1 33 8 34 9 4 or 12 36 11 37 12 5 or 13 39 14 40 15 6 or 14 42 17 43 18 7 or 15 45 20 46 21 8 or 16 48 23 49 24

Table A-4

SJA57 4-Wire Switched 56 kbps NIM

Receive Transmit

T R T1 R1

1 or 9 26 1 27 2 2 or 10 28 3 29 4 3 or 1 1 30 5 31 6 4 or 12 32 7 33 8 5 or 13 34 9 35 10 6 or 14 36 11 37 12 7 or 15 38 13 39 14

A-2 July 1999 3000-A2-GA31-D0

8 or 16 40 15 41 16

Page 65

Pin Assignments

Table A-5

24-Port NIM Pin Assignments

Carrier Slot

1 or 9 A 26 1

2 or 10 A 27 2

3 or 1 1 A 28 3

4 or 12 A 29 4

5 or 13 A 30 5

Modem Tip Ring

B 34 9 C 42 17

B 35 10 C 43 18

B 36 11 C 44 19

B 37 12 C 45 20

B 38 13

NMS Interface Connections

For NMS/SDU connections:

• T able A-6 provides the SDU to NMS pin

assignments.

• T able A-7 supplies the SDU to SDCP pin

assignments.

Table A-6

SDU to NMS Interface

CC IN/

Circuit

CC OUT/

Function

DC IN

DC OUT

1 RSI RSO Request to Send 2 CSO CSI Clear to Send 3 RDO RDI Receive Data 4 SG SG Signal Ground 5 SDI SDO Transmit Data 6 +Vdc — +12 Vdc Output

C 46 21

6 or 14 A 31 6

B 39 14 C 47 22

7 or 15 A 32 7

B 40 15 C 48 23

8 or 16 A 33 8

B 41 16 C 49 24

Table A-7

SDU to SDCP Interface

1 Ground Ground Ground 4 SG SG Signal Ground 5 FPRDO FPRDI Receive Data 6 FPSDI FPSDO Send Data 7 FPAALM FPAALM Audible Alarm 8 FPLALMO FPLALMI LED Alarm

Circuit

unction

FP IN FP OUT

A-33000-A2-GA31-D0 July 1999

Page 66

COMSPHERE 3000 Series Carrier

50-Pin Modular Plugs

The 24-port DTE interface uses a 26-gauge stranded octopus cable with a 50-pin modular plug. The octopus cable contains 24 6-pin modular cables, as shown in Figure A-2.

Figure A-3 shows a 50-pin modular plug conversion cable used for digital and leased-line networks.

T ables A-8 through A-11 list the pin assignments for

all 50-pin to modular plug conversion cables.

50-Pin

Modular Plug

24 Cables with Modular Plugs

(5' long)

Figure A-2. 50-Pin Cable with 24

6-Pin Modular Plugs

496-14950

493-12685a-01

Figure A-3. 50-Pin to Modular Plug Digital/Lease Conversion Cable

A-4 July 1999 3000-A2-GA31-D0

Page 67

Pin Assignments

Table A-8

Pin Assignments for Digital and

JM8 Leased Network Interface Cables,

Feature 3600-F2-503

50-Position

Pin #

2 27 26

4 29 28

6 31 30

8 33 32

Signal Name

R1 (transmit) T1 (transmit) T (receive) R (receive)

Modular

Plug #

1 1 1 1

2 2 2 2

3 3 3 3

4 4 4 4

Modular

Pin #

1 of 8 2 of 8 7 of 8 8 of 8

Table A-9

Pin Assignments for Analog V.32 DBM

Programmable – RJ45S Network Interface

Cable, Feature 3600-F2-504

50-Position

Pin #

2 27 28

5 30 31

8 33 34

9 11

36 37 12

Signal

Name

Ring Tip PR PC

Modular

Plug #

1 1 1 1

2 2 2 2

3 3 3 3

4 4 4 4

Modular

Pin #

4 of 8 5 of 8 7 of 8 8 of 8

10 35 34

12 37 36

14 39 38 13

16 41 40 15

R1 (transmit) T1 (transmit) T (receive)

R (receive) R1 (transmit)

T1 (transmit) T (receive) R (receive)

R1 (transmit) T1 (transmit) T (receive) R (receive)

5 5 5 5

6 6 6 6

7 7 7 7

8 8 8 8

1 of 8 2 of 8 7 of 8 8 of 8

14 39 40 15

17 42 43 18

20 45 46 21

23 48 49 24

Ring Tip PR PC

5 5 5 5

6 6 6 6

7 7 7 7

8 8 8 8

4 of 8 5 of 8 7 of 8 8 of 8

A-53000-A2-GA31-D0 July 1999

Page 68

COMSPHERE 3000 Series Carrier

Table A-10

Pin Assignments for Dial Permissive –

RJ11C Network Interface Cable,

Feature 3600-F2-505

50-Position

Pin #

Signal

Name

Ring Tip

Modular

Plug #

1 1

2 2

3 3

4 4

5 5

6 6

7 7

8 8

Modular

Pin #

3 of 6 4 of 6

Table A-11

Pin Assignments for 50-Pin to Eight 6-Pin

Modular Network Interface Cable,

Feature 3000-F1-009

50-Position

Pin #

2 27 26

4 29 28

6 31 30

8 33 32

7 10

35 34

9 12

37 36

14 39 38 13

16 41 40 15

Signal

Name

Transmit Transmit Receive Receive

Modular

Plug #

1 1 1 1

2 2 2 2

3 3 3 3

4 4 4 4

5 5 5 5

6 6 6 6

7 7 7 7

8 8 8 8

Modular

Pin #

3 of 6 4 of 6 2 of 6 5 of 6

A-6 July 1999 3000-A2-GA31-D0

Page 69

Pin Assignments

Carrier Backplane Connectors

The center connectors are P19 and P20. These connectors supply low ac or dc voltage from the power supply unit to the COMSPHERE 3000 Series Carrier’s

T able A-12 provides descriptions of the connectors on

the right and left side of the carrier’s backplane.

Figure A-4 illustrates the connectors on the

COMSPHERE 3000 Series Carrier backplane.

backplane.

Table A-12

Connectors on the COMSPHERE 3000 Series Carrier Backplane

Connectors

for Slots 1–8

P21 P22 This 50-pin connector provides the digital or 4-wire and 2-wire leased-line interface

P23 & P24 P25 & P26 These connectors are used by the Network Interface Modules (NIMs) to provide the

J1 J2 This 26-pin high-density D-type connector provides the D-lead control interface for

Connectors

for Slots 9–16

Function

for DCEs (DSUs and dial/lease modems).

dial interface through a 50-pin connector for dial/lease modems.

dial/lease modems. (Refer to Table A-13 for pin assignments).

P26 P25 P24 P23

J2 P22 J1 P21

Figure A-4. Connectors on the COMSPHERE 3000 Series Carrier Backplane

P20 P19

496-13861-03

A-73000-A2-GA31-D0 July 1999

Page 70

COMSPHERE 3000 Series Carrier

D-Lead Control Interface

The COMSPHERE dial/lease D-lead control interface is used in modem-pooling applications to cause the modem to go off-hook in the Originate mode. This interface is provided on connector J1 for Slots 1–8 and connector J2 for Slots 9–16.

T able A-13 provides the D-lead control interface pin assignments.

Table A-13

D-Lead Control Interface

Slot

Connector Pin # Signal Name*

1 J1 16

2 J1 14

3 J1 2

4 J1 4

5 J1 6

6 J1 8

7 J1 10

8 J1 12

DLCTL NC

DLCTL

NC DLCTL

— J2 25 SIG GND

9 J2 16

10 J2 14

11 J2 2

12 J2 4

13 J2 6

14 J2 8

15 J2 10

16 J2 12

— J2 25 SIG GND

DLCTL NC

DLCTL

NC DLCTL

A-8 July 1999 3000-A2-GA31-D0

* DLCTL = D-Lead Control NC = No Connection

SIG GND = Signal Ground

Page 71

T1 CSU and T1 DSU/CSU

Interface Connectors

Overview B-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

T1 Auxiliary Backplane Connectors B-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

T1 Network Interface Connector B-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DSX-1 Port DTE Interface B-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connecting to the DTE B-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

COM Port Interface B-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Port Interfaces B-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

EIA-530-A DB25 Port Interface Connector B-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

RS-449 Port Interface Connector B-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

V.35 Port Interface Connector B-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Standard EIA-232-D Crossover Cable B-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Diagnostic Channel Extension Cable B-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

External Clock Connector B-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Overview

The ACCULINK T1 CSUs and T1 DSU/CSUs are

shipped without cables.

• Various interconnecting cables, available from

Paradyne, have a feature number assigned to them (see Appendix D, Equipment List).

T1 Auxiliary Backplane Connectors

The T1 auxiliary backplane provides the connectors

described in Table B-1 and shown in Figure B-1.

• This appendix describes the cable pin assignments

for both Paradyne cables and customer-supplied cables. Use this information if you need to build your own cables.

Unless otherwise noted, the interface connections

apply to both T1 CSUs and T1 DSU/CSUs.

B-13000-A2-GA31-D0 July 1999

Page 72

COMSPHERE 3000 Series Carrier

Table B-1

T1 Interface Connectors

Connector

DTE 8 CSU and

Quantity T1 Type Use

DB15 socket. Provides the connection to your T1 DSX-1 (DTE).

DSU/CSU

Network Interface

1 CSU and

DSU/CSU

50-pin RJ48H plug. Provides the connection to the T1 network for all eight slots supported by the T1 auxiliary backplane.

Clock In 1 DSU/CSU DB9 socket. Attaches an external clock that provides timing for up to eight slots.

Each T1 auxiliary backplane must have its own external clock input.

Port 1 & 2 16 CSU and

DSU/CSU

DB25 (EIA-530-A) socket. Provides the connection from a T1 DSU/CSU to the synchronous data DTE.

The Port 2 DB25 socket connector allows one slot in the carrier to be configured as the COM port, which replaces the functionality of the second data port. The COM port is a communications port providing access to the front panel from a locally connected PC.

Diagnostic Chan

2 CSU and

DSU/CSU

DIAGNOSTIC

CHAN

PORT

8-pin modular jack. Provides diagnostic connectivity between T1 auxiliary backplanes in a carrier.

CLOCK IN

DIAGNOSTIC

CHAN

PORT

SLOT 7 (15)

SLT 8 (16)

DTE

DTE DTE DTE DTE DTE DTE

Figure B-1. T1 Auxiliary Backplane Connectors

B-2 July 1999 3000-A2-GA31-D0

SLOT 6 (14)

PORT

CAUTION:

PORT

SLOT 5 (13)

DISCONNECT ALL TELEPHONE LINES AT THE NETWORK INTERFACE BEFORE TOUCHING OR SERVICING

PORT

SLOT 4 (12) SLOT 3 (11)

T1 NETWORK

PORT

SLOT 2 (10)

INTERFACE

PORT

SLOT 1 (9)

DTE

T1 Network

Interface

Connector

496-14364-01

Page 73

T1 CSU and T1 DSU/CSU Interface Connectors

T1 Network Interface Connector

The T1 line network interface breakout cable has the

following characteristics:

• 2 1/2-foot octopus cable with a 50-pin T elco-type

socket (RJ48H) on one end (see Figure B-2)

• Eight unkeyed 8-pin modular plugs (RJ48C) on the

other end

• Paired, 24 AWG solid conductors

T able B-2 shows the pin assignments for the 50-pin

T elco plug RJ48H connector.

8-Pin Modular

Plugs (Unkeyed)

Table B-2

T1 Network Interface Connector (RJ48H)

Signal

Transmit Ring 1 or 9 14 Transmit T ip 1 or 9 39 Receive Ring 1 or 9 1 Receive Tip 1 or 9 26 Transmit Ring 2 or 10 15 Transmit T ip 2 or 10 40 Receive Ring 2 or 10 2 Receive Tip 2 or 10 27 Transmit Ring 3 or 1 1 16 Transmit T ip 3 or 11 41 Receive Ring 3 or 11 3 Receive Tip 3 or 11 28 Transmit Ring 4 or 12 17 Transmit T ip 4 or 12 42

Slot Pin #

50-Pin

Telco-Type Socket

2.5 Feet

496-14399-01

Figure B-2. T1 Network Interface Connector

Receive Ring 4 or 12 4 Receive Tip 4 or 12 29 Transmit Ring 5 or 13 18 Transmit T ip 5 or 13 43 Receive Ring 5 or 13 5 Receive Tip 5 or 13 30 Transmit Ring 6 or 14 19 Transmit T ip 6 or 14 44 Receive Ring 6 or 14 6 Receive Tip 6 or 14 31 Transmit Ring 7 or 15 20 Transmit T ip 7 or 15 45 Receive Ring 7 or 15 7 Receive Tip 7 or 15 32 Transmit Ring 8 or 16 21 Transmit T ip 8 or 16 46 Receive Ring 8 or 16 8

Receive Tip 8 or 16 33

B-33000-A2-GA31-D0 July 1999

Page 74

COMSPHERE 3000 Series Carrier

DSX-1 Port DTE Interface

The DSX-1 cable is typically supplied by a DTE

vendor (see Figure B-3) and is a:

• 22 AWG solid, individually shielded twisted pair

cable with drain wire.

• DB15 plug. Be sure to connect the shield ground

only at the T1 DSU/CSU end as shown to prevent ground loops.

The DTE (DSX-1) interface connector is a DB15-type

socket connector (see T able B-3). Refer to the

ACCULINK 315x Channel Service Unit Operator’s Guide or the ACCULINK 3160, 3161, 3164, and 3165 DSU/CSU Operator’s Guide for more information.

DB15

Plug

Twisted Pair

DTE

Twisted Pair

External

Relay

Contact

Receive Tip Receive Ring

Shield Ground

Transmit Tip

Transmit Ring

Shield Ground

Return

Sense

496-14152-03

Table B-3

DTE (DSX-1) Interface Connector (J3)

Signal

Receiver Tip from DTE 1 Receiver Ring from DTE 9 Transmitter T ip to DTE 3 Transmitter Ring to DTE 11 Relay Contact Sense Return 12 Relay Contact Sense 14 Shield Ground 2, 4

Pin #

Connecting to the DTE

T o connect the DTE to the modem, you can use two DB25 to 8-position modular adapters and an 8-pin RJ45-type modular cable instead of an RS-232 cable with DB25 connectors. Because of the large number of cables required for typical 24-port installations, the slimmer modular cable is recommended.

The connectors on the DTE interface assembly are labeled, from top to bottom: A, B, and C. These markings show which modem on a card is associated with each connector.

• Connect the DB25 adapter or the connector on an

RS-232 DTE cable to one of the DB25 connectors on the DTE interface assembly. Use a small screwdriver to fasten the connector to the backplate.

Figure B-3. DTE (DSX-1) Cable

B-4 July 1999 3000-A2-GA31-D0

• Connect the DB25 adapter or connector on the

cable to the DB25 connector on the DTE. Use a small screwdriver to fasten the cable to the DTE.

Page 75

T1 CSU and T1 DSU/CSU Interface Connectors

COM Port Interface

The COM port connects to either a personal computer

(PC) or an async terminal and printer:

The PC connection uses the:

• COM port-to-PC cable. This cable is a 14-foot,

26 AWG, 8-conductor cable with an 8-position modular plug keyed connector and a DB9 socket connector (see Figure B-4).

• COM port connector with a plastic body adapter for

converting a DB25 interface to an 8-pin modular jack (see Figures B-5 and B-6). This connector is used in conjunction with the COM port adapter cable.

8-Position

Modular

Plug Keyed

RX Data

Ground

TX Data

DTR

RTS

1 2 3 4 5 6 7 8

No Connection

DB9

Socket

2 5 3 4 1 8 6 7

RX Data Ground TX Data DTR CD CTS DSR RTS

496-14153-03

Plug

DB25 Type

Number

DTR

RTS

3 7 2

8 4

TX CLK

RX Data

Ground

TX Data

RX CLK

Figure B-5. COM Port-to-PC Adapter

Carrier

Connection

8-Pin Keyed

Modular Jack

Number

1 2 3 4 5 6 7 8

496-14401-01

Figure B-4. COM Port-to-PC Cable

PC Connection

COM Port

Adapter

Figure B-6. COM Port Adapter

496-14418-01

B-53000-A2-GA31-D0 July 1999

Page 76

COMSPHERE 3000 Series Carrier

The async terminal connection uses the:

• COM port-to-terminal/printer cable. This cable is a

14-foot, 26 AWG 8-conductor cable with an 8-position modular plug keyed connector and a DB25 plug connector (see Figure B-7).

• COM port adapter connector with an 8-position

keyed modular jack (see T able B-4). The data signals on this port are referenced to a DTE interface.

8-Position

Plug Keyed

RX Data

Ground

TX Data

DTR

RTS

Modular

1 2 3 4 5 6 7 8

DB25

Plug

3 7 2

8 5 6 4

RX Data Ground TX Data DTR CD CTS DSR RTS

496-14154-03

Figure B-7. COM Port-to-Terminal/Printer Cable

Port Interfaces

The port interface connectors (T1 DSU/CSU only) include the EIA-530-A DB25 connector. The V.35 connector and the RS-449 connector require an adapter cable.

EIA-530-A DB25 Port Interface Connector

The EIA-530-A Port Interface connector information is shown in T able B-5.

Table B-5

EIA-530-A Port Interface Connector

Signal

Signal Common AB 102A Signal Common AC 102B Transmitted Data BA 103 To

Received Data BB 104 From

Request to Send CA 105 To

Clear to Send CB 106 From

Received Line Signal Detector

DCE Ready CC 107 From

Circuit

Label

CF 109 From

ITU #

To/

From

 

DCE

22, 23

2 (A)

14 (B)

3 (A)

16 (B)

4 (A)

5 (A)

13 (B)

8 (A)

10 (B)

Table B-4

COM Port Adapter Connector (J6)

Signal

Reserved for future use to DTE (Out) 1 DCE Received Data to DTE (Out) 2 SIGNAL Ground DCE Transmit Data from DTE (IN) 4 DCE Data Terminal Ready from DTE (IN) 5 DCE Carrier Detect to DTE (Out) 6 DCE Request to Send from DTE (IN) 7 Reserved for future use to DTE (Out) 8

B-6 July 1999 3000-A2-GA31-D0

To/From Pin #



DTE Ready CD 108/1, /2 To

DCE

Transmit Signal Element Timing – DTE Source

Transmit Signal Element Timing – DCE Source

Receiver Signal Element Timing – DCE Source

Local Loopback LL 141 To

Remote Loopback

Test Mode TM 142 From

DA 113 To

DCE

DB 114 From

DCE

DD 115 From

DCE

RL 140 To

DCE

11 (A) 24 (B)

12 (A) 15 (B)

17 (A)

9 (B)

Page 77

T1 CSU and T1 DSU/CSU Interface Connectors

RS-449 Port Interface Connector

The RS-449 Port Interface connector and adapter cable

information is shown in Figure B-8 and T able B-6.

530

Signal

Shield

TD-A

TD-B RD-A RD-B

TXC-A

TXC-B RXC-A RXC-B

RTS-A

RTS-B

CTS-A

CTS-B

DTR RLSD-A RLSD-B

DSR

Sig. Common

Rcv. Common

TT-A TT-B

Sig. Common

DB-25 Plug

1 2

3 16 15 12 17

4 19

5 13 20

8 10

7 21 18 23 24 11 25 22

DB-37

Socket

449 Signal

Shield

TD-A

TD-B

RD-A

RD-B

TXC-A

TXC-B

RXC-A

RXC-B

RTS-A

RTS-B

CTS-A

CTS-B

DTR-A

RR-A

RR-B

DM-A

Sig. Common

Rcv. Common

TT-A

TT-B

DM-B

DTR-B

496-14323a

Table B-6

RS-449 Port Interface Connector

Signal

Shield

Circuit

Label

ITU #

  

Signal Ground SG 102A Receive Ground RC 102B Send Common SC

 

Send Data SD 103 To

Receive Data RD 104 From

Request to Send RS 105 To

Clear to Send CS 106 From

Receiver Ready RR 109 From

Data Mode DM 107 From

Terminal Ready TR 108/1, /2 To

Terminal Timing TT 113 To

Send Timing ST 114 From

Receive Timing RT 115 From

Local Loopback LL 141 To

To/

From

 

DCE

1 19 20 37

4 (A)

22 (B)

6 (A)

24 (B)

7 (A)

25 (B)

9 (A)

27 (B) 13 (A)

31 (B) 11 (A)

29 (B) 12 (A)

30 (B) 17 (A)

35 (B)

5 (A)

23 (B)

8 (A)

26 (B)

Figure B-8. EIA-530-A to RS-449 Adapter Cable

Remote Loopback

RL 140 To

DCE

Test Mode TM 142 From

DCE

B-73000-A2-GA31-D0 July 1999

Page 78

COMSPHERE 3000 Series Carrier

V.35 Port Interface Connector

The V.35 Port Interface connector and adapter

information is shown in Figure B-9 and T able B-7.

530

Signal

Shield

TD-A

TD-B RD-A RD-B

TXC-A

TXC-B RXC-A RXC-B

RTS CTS

RLSD

DSR

Sig. Common

TT-A TT-B

DTR

Sig. Common

DB25 Plug

1 2

3 16 15 12 17

7 24 11 20 21 18 25 23

MS34

Socket

Figure B-9. EIA-530-A to V.35 Adapter

V.35 Signal

Shield

TD-A

TD-B

RD-A

RD-B

TXC-A

TXC-B

RXC-A

RXC-B

RTS

CTS

RLSD

DSR

Sig. Common

TT-A

TT-B

DTR

497-14324a-01

Table B-7

V.35 Port Interface Connectors

Signal

ITU #

Shield — — A Signal Common 102 — B Transmitted Data 103 To

Received Data 104 From

Request to Send 105 To

Clear to Send 106 From

Data Channel Received

109 From

Line Signal Detector Data Set Ready 107 From

Data Terminal Ready 108/1, /2 To

Transmit Signal Element

113 To

Timing (DTE Source) Transmit Signal Element

114 From

Timing (DCE Source) Receiver Signal Element

115 From

Timing (DCE Source) Local Loopback 141 To

To/

From

DCE

Pin #

P (A) &

S (B)

R (A) &

T (B)

U (A) &

W (B)

Y (A) &

AA (B)

V (A) &

X (B)

B-8 July 1999 3000-A2-GA31-D0

Loopback/Maintenance 140 To

DCE

Test Indicator 142 From

DCE

Page 79

Standard EIA-232-D Crossover Cable

A standard EIA-232-D crossover cable can be used to

connect to an external modem. Refer to Figure B-10.

T1 CSU and T1 DSU/CSU Interface Connectors

Pin 14

Pin 1

Pin 13

Pin 25

Chassis Ground

Signal Ground

CD (RLSD)

TXD

RXD

RTS CTS

DSR

DTR

Plug

Pin 14

Pin 1

Pin 25

Pin 13

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

Pin P2

Chassis Ground

TXD

RXD

RTS

CTS

DSR

Signal Ground

CD (RLSD)

9 10 11 12 13 14 15 16 17 18 19

DTR

20 21 22 23 24 25

Figure B-10. Standard EIA-232-D Crossover Cable

497-15180a

B-93000-A2-GA31-D0 July 1999

Page 80

COMSPHERE 3000 Series Carrier

Diagnostic Channel Extension Cable

T o connect two T1 auxiliary backplanes, a 12-inch cable with 8-pin modular plugs at each end is used (see Figures B-11 and B-12).

8-Pin Modular

Plug

1 2 3 4 5 6 7 8

Figure B-11. Diagnostic Channel Extension

Cable Connectors

1 2 3 4 5 6 7 8

496-14403-01

External Clock Connector

The External Clock connector cable (T1 DSU/CSU only) diagram is shown in Figure B-13. This is a customer-supplied cable. Connector pinouts are in T able B-8.

8 1 2 6 7 4

Figure B-13. External Clock Connector

External Clock Connector

Shield Shield Clock In (–) Clock In (+) Signal Ground

Table B-8

(RS422 Only)

496-14402-01

12" Telephone

Cord

8-Pin

Modular Plug

Numbers

8-Pin

Modular Plug

496-14404-01

Figure B-12. Diagnostic Channel

Extension Cable

Signal Pin #

Shield 1, 8 Clock (+) RS422 only 6 Clock (–) RS422 only 2 Signal Common 7

B-10 July 1999 3000-A2-GA31-D0

Page 81

Technical Specifications

T echnical Specifications for the COMSPHERE 3000 Series Carrier

Technical Specifications Criteria

ENVIRONMENT

Operating Temperature Storage Temperature Relative Humidity Shock and Vibration

POWER REQUIREMENTS

Carrier with ac power supply (maximum capacity)

100 V ac (approved for use with

Models 381 1, 3821, 3911, 3921, 3981)

115 V ac (approved for use with

Models 3151, 3161, 351 1, 3551, 3611, 3616, 381 1, 3821, 3911, 3921, 3981)

230 V ac (approved for use with Models 381 1, 3821, 3911, 3921, 3981)

Fan Module

100 V ac 1 15 Vac 230 V ac

Shared Diagnostic Control Panel (SDCP)

100 V ac 1 15 Vac 230 V ac

Table C-1

(1 of 6)

32_F (0_C) to 122_F (50_C) –4_F (–20_C) to 158_F (70_C) 5% to 95% (noncondensing) Withstands normal shipping and handling

85100 V ac, 47-63 Hz (3.0 amp, 175 watts at 100 Vac)

90–132 Vac, 60 Hz ±3 (3.0 amp, 216 watts at 115 Vac)

220–240 Vac nominal, 47 to 63 Hz (1.5 amp, 175 watts at 230 V ac)

Supplied by carrier, 45 watts at 100 Vac Supplied by carrier, 45 watts at 115 Vac Supplied by carrier, 57 watts at 230 Vac

Supplied by carrier, 1 watt at 100 Vac Supplied by carrier, 1 watt at 115 Vac Supplied by carrier, 1 watt at 230 Vac

C-13000-A2-GA31-D0 July 1999

Page 82

COMSPHERE 3000 Series Carrier

T echnical Specifications for the COMSPHERE 3000 Series Carrier

Technical Specifications Criteria

POWER REQUIREMENTS (Continued)

Shared Diagnostic Unit (SDU) Model 3151 Model 3161 Model 351 1 Models 3551 and 361 1 DBM-D, DBM-I, DBM-S or DBM-V Models 3551, 361 1, and 3616 with DBM Model 3611 with TDM Model 3611 with DBM and TDM Model 3611 with MCMP Model 3611 with DBM and MCMP

Model 381 1 modem

Model 3821 modem

Model 3911, 3921 1-port, and 3981 modems

Model 3921 4-port modem

Carrier with sixteen 3551, 361 1, and 3616 DSUs with DBMs plus SDU and fan module

Carrier with sixteen 3151 T1 CSUs plus SDU, SDCP, and fan module

Carrier with sixteen 3161 T1 DSU/CSUs plus SDU, SDCP, and fan module

Table C-1

(2 of 6)

24 Vac (CT), 60 Hz ±3 (0.01 amp, 1.5 watts at 115 Vac) 24 Vac (CT), 60 Hz ±3 (3.7 watts at 115 Vac) 24 Vac (CT), 60 Hz ±3 (9.3 watts at 115 Vac) 24 Vac (CT), 60 Hz ±3 (0.07 amp, 6 watts at 115 Vac) 24 Vac (CT), 60 Hz ±3 (0.03 amp, 4.5 watts at 115 Vac) 24 Vac (CT), 60 Hz ±3 (0.05 amp, 8.0 watts at 115 Vac) 24 Vac (CT), 60 Hz ±3 (0.05 amp, 8.0 watts at 115 Vac) 24 Vac (CT), 60 Hz ±3 (0.07 amp, 8.6 watts at 115 Vac) 24 Vac (CT), 60 Hz ±3 (0.09 amp, 12.15 watts at 115 Vac) 24 Vac (CT), 60 Hz ±3 (0.08 amp, 9.1 watts at 115 Vac) 24 Vac (CT), 60 Hz ±3 (0.10 amp, 12.65 watts at 115 Vac)

24 V ac (CT), 47–63 Hz (0.05 amp, 3.4 watts at 100 Vac) 24 Vac (CT), 60 Hz ±3 (0.04 amp, 3.4 watts at 115 Vac) 24 V ac (CT), 47–63 Hz (0.02 amp, 3.4 watts at 230 Vac)

24 V ac (CT), 47–63 Hz (0.08 amp, 7.5 watts at 100 Vac) 24 Vac (CT), 60 Hz ±3 (0.07 amp, 7.5 watts at 115 Vac) 24 V ac (CT), 47–63 Hz (0.03 amp, 7.5 watts at 230 Vac)

24 V ac (CT), 47–63 Hz (0.07 amp, 4.0 watts at 100 Vac) 24 Vac (CT), 60 Hz ±3 (0.06 amp, 4.0 watts at 115 Vac) 24 V ac (CT), 47–63 Hz (0.03 amp, 4.0 watts at 230 Vac)

24 V ac (CT), 47–63 Hz (0.06 amp, 6.0 watts at 100 Vac) 24 Vac (CT), 60 Hz ±3 (0.05 amp, 6.0 watts at 115 Vac) 24 V ac (CT), 47–63 Hz (0.03 amp, 6.0 watts at 230 Vac)

90–132 Vac, 60 Hz ±3 (1.65 amp, 165 watts at 115 Vac)

90–132 Vac, 60 Hz ±3 (1.25 amp, 111 watts at 115 Vac)

90–132 Vac, 60 Hz ±3 (2.4 amp, 215 watts at 115 Vac)

ALARM CIRCUIT CAPACITY 42 V ac, 60 Vdc Max. at 1.0 amp Max. FAN MODULE POWER DISSIPATION

100 V ac 1 15 Vac 230 V ac

C-2 July 1999 3000-A2-GA31-D0

154 Btu/hr. 154 Btu/hr. 195 Btu/hr.

Page 83

T echnical Specifications for the COMSPHERE 3000 Series Carrier

Technical Specifications Criteria

HEAT DISSIPATION (MAXIMUM)

Shared Diagnostic Unit (SDU) Model 3151 T1 CSU Model 3161 T1 DSU/CSU Model 351 1 DSU Models 3551 and 361 1 DSUs DBM-D, DBM-I, DBM-S or DBM-V Models 3551, 361 1, and 3616 with DBM Model 3611 with TDM Model 3611 with MCMP Model 381 1 modem Model 3821 modem Model 3911, 3921 (1-port), and 3981 modem Model 3921 (4-port) modem

Technical Specifications

Table C-1

(3 of 6)

5.2 Btu/hr.

12.6 Btu/hr.

31.7 Btu/hr.

20.5 Btu/hr.

22.2 Btu/hr.

29.0 Btu/hr.

33.4 Btu/hr.

33.4 Btu/hr. 1 1.7 Btu/hr.

25.6 Btu/hr.

13.7 Btu/hr.

20.5 Btu/hr.

PHYSICAL DIMENSIONS

Carrier

Height Width Depth

Power Transformer Unit

Height Width Depth

Fan Module

Height Width Depth

Shared Diagnostic Control Panel (SDCP) or Speaker Panel

Height Width (length) Depth

Shared Diagnostic Unit (SDU)

Height Width Depth

10.5 inches (26.7 cm)

19.0 inches (48.3 cm)

14.0 inches (35.6 cm)

2.5 inches (6.4 cm)

16.9 inches (42.9 cm)

6.5 inches (16.5 cm)

1.8 inches (4.4 cm)

19.0 inches (48.3 cm)

5.0 inches (12.7 cm)

2.6 inches (6.5 cm)

19.0 inches (48.3 cm)

0.8 inches (1.1 cm)

7.1 inches (18.1 cm)

1.0 inches (2.5 cm)

12.9 inches (32.8 cm)

C-33000-A2-GA31-D0 July 1999

Page 84

COMSPHERE 3000 Series Carrier

T echnical Specifications for the COMSPHERE 3000 Series Carrier

Technical Specifications Criteria

PHYSICAL DIMENSIONS (Continued)

Models 351 1, 3551, 3611, 3616, 3811, 3911, 3921 1-port, 3981

Height Width (thickness) Depth

Model 3821

Height Width (thickness) Depth

Model 3611 with TDM or MCMP and Model 3921 4-port

Height Width (widest-point faceplates) Depth

Models 3151 and 3161

Height Width Depth

Rear Connector Plate (2-port)

Height Width Depth (25-pin V.35 Interface)

Connector Module (6-port)

Height Width Depth

T1 Auxiliary Backplane

Height Width Depth

Table C-1

(4 of 6)

7.1 inches (18.1 cm)

1.0 inches (2.5 cm)

13.4 inches (34.0 cm)

7.37 inches (18.7 cm)

1.0 inches (2.5 cm)

14.37 inches (36.5 cm)

7.1 inches (18.1 cm)

2.0 inches (5.0 cm)

13.4 inches (34.0 cm)

7.1 inches (18.0 cm)

1.0 inches (2.5 cm)

14.2 inches (36.1 cm)

5.2 inches (13.2 cm)

0.9 inches (2.3 cm)

1.0 inches (2.5 cm)

6.9 inches (17.5 cm)

1.8 inches (4.6 cm)

3.3 inches (8.4 cm)

9.0 inches (22.9 cm)

8.0 inches (20.3 cm)

1.3 inches (3.3 cm)

WEIGHT

Carrier (empty) Power Transformer Unit

100 V ac 1 15 Vac 230 V ac

Fan Module

100 V ac 1 15 Vac 230 V ac

C-4 July 1999 3000-A2-GA31-D0

17.0 pounds (7.7 kg)

14.6 pounds (6.6 kg)

19.0 pounds (8.6 kg)

14.1 pounds (6.4 kg)

6.7 pounds (3.0 kg)

8.0 pounds (3.6 kg)

7.5 pounds (3.4 kg)

Page 85

T echnical Specifications for the COMSPHERE 3000 Series Carrier

Technical Specifications Criteria

WEIGHT (Continued)

Shared Diagnostic Control Panel (SDCP) Rear Connector Plate (2-port)

25-pin EIA-232/25-pin V.35 6-port MUX Connector Module 2-slot Triple Modem Connector Module 24-port DTE Interface Assembly Speaker Panel Shared Diagnostic Unit (SDU) Network Interface Module (NIM) Model 3151 Model 3161 Model 3821 Model 3921, 3981 T1 Auxiliary Backplane

Technical Specifications

Table C-1

(5 of 6)

1.6 pounds (0.7 kg)

0.1 pound (0.06 kg)

1.0 pound (0.5 kg)

0.7 pound (0.3 kg)

2.1 pounds (1.1 kg)

1.3 pounds (0.6 kg)

1.0 pound (0.5 kg)

0.2 pound (0.1 kg)

1.3 pounds (0.6 kg)

1.8 pounds (0.82 kg)

1.4 pounds (0.6 kg)

1.0 pound (0.5 kg)

2.4 pounds (1.1 kg)

NETWORK INTERFACE

Digital/Lease Network Interface

Network Interface Module:

Dial

4-wire Switched 56 kbps (U.S. only)

2-wire Switched 56 kbps Model 3151 and 3161 Physical Interface USA Canada

Full Compliance with A T&T Technical Reference 62310-1987, ‘‘Digital Data System Channel Interface Specification,” November 1987; and Bell Canada ‘‘Digital Circuit Terminating Equipment (DCTE) Specifications,” July 1989, Issue 1

50-pin connector (2)

Digital: USOC RJ48T Lease: 50-pin to 8-pin cable; JM8

50-pin connector (1 or 2)

Permissive: USOC RJ21X

Programmable: USOC RJ27X 50-pin connector (1 or 2): USOC SJA57 50-pin connector (1 or 2)

50-pin connector (1 or 2): RJ48H (T1) CA81A (T1 with adapter cable)

C-53000-A2-GA31-D0 July 1999

Page 86

COMSPHERE 3000 Series Carrier

T echnical Specifications for the COMSPHERE 3000 Series Carrier

Technical Specifications Criteria

DTE INTERFACE

Model 3151

Physical Interface Framing Format Coding Format DTE Line Equalization Send AIS

Model 3161 (DSX-1)

Physical Interface Framing Format Coding Format DTE Line Equalization Send AIS

Table C-1

(6 of 6)

DB15S D4, ESF AMI, B8ZS 5 selectable ranges from 0 to 655 feet (0 to 196.5 meters) Selectable

MODEL 3161 PORT INTERFACE

Standards Rates

MODEL 3161 CLOCKING SOURCES T1 network interface, DSX-1 T1 interface, Port 1, internal clock,

APPROVALS Refer to the label on your device or contact your local service

EIA 530-A, V.35, RS-449, V.11 Nx64 – 64-1.536 Mb

Nx56 – 56-1.344 Mb

external clock

representative.

C-6 July 1999 3000-A2-GA31-D0

Page 87

Equipment List

Document Ordering Information D-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Equipment List D-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Document Ordering Information

T able D-1 provides document ordering information.

Table D-1

(1 of 2)

Document Ordering Information

Document Name

COMSPHERE 3000 Series Carrier Installation Manual 3000-M3-001 — 3000-A2-GA31 COMSPHERE –48 Vdc Central Office Power Unit Installation Guide — ACCULINK 3151 CSU and 3161 DSU/CSU General Information Guide — — 3100-A2-GK40 ACCULINK 3100 Series Harmonica Block Adapter, Feature Number

3100-F1-940, Installation Instructions ACCULINK 3150 and 3151 CSU Operator’s Guide — — 3150-A2-GB21 ACCULINK 3160, 3161, 3164, and 3165 DSU/CSU Operator’s Guide — — 3160-A2-GB21

Contact your sales or service representative to order

additional product documentation.

Paradyne documents are also available on the World

Wide Web at www.paradyne.com. Select Library →

Technical Manuals.

Feature

Number

— — 3100-A2-GZ40

Comcode Part Number

— 3000-A2-GB41

COMSPHERE 3550 Series Data Service Units, Models 3550 and 3551, User’s Guide

COMSPHERE 3600 Series Data Service Units, Models 3610 and 361 1, User’s Guide

COMSPHERE 3600 Series Data Service Units, Models 3610 and 361 1, Time Division Multiplexer, Multichannel Multipoint, and Digital Bridge Options Supplement

COMSPHERE 3600 Series Data Service Units, Models 3610 and 361 1, Dial Backup Module Options Supplement

COMSPHERE DualFlow Data Service Units, Models 3615 and 3616, User’s Guide

— — 3550-A2-GB20

3600-M1-005 107149064 3610-A2-GB46

3600-M1-006 107149122 3610-A2-GB48

3600-M1-007 — 3610-A2-GB49

— — 3615-A2-GB20

D-13000-A2-GA31-D0 July 1999

Page 88

COMSPHERE 3000 Series Carrier

Table D-1

(2 of 2)

Document Ordering Information

Document Name Part NumberComcode

COMSPHERE 3800 Series Modems, Models 3810, 3811, and 3820, User’s Guide

COMSPHERE 3821 COMSPHERE 3900 Series Modems, Models 3910 and 391 1,

Point-to-Point/Multipoint, Installation and Operation Manual COMSPHERE 392

Technical Reference Manual COMSPHERE 3800

Plus

Modem User’s Guide — — 3821-A2-GB20

xPlus

Modems, Models 3920

Plus

Modems User’s Guide — — 3980-A2-GB30

Plus

and 3921

Plus

Feature

Number

3800-M1-005 — 3810-A2-GB30

3900-M1-900 107047342 3910-A2-GN32

— — 3920-A2-GH30

D-2 July 1999 3000-A2-GA31-D0

Page 89

Equipment List

T able D-2 provides an equipment list for the carrier and assembly components. The part number column is for Paradyne’s use.

Table D-2

Equipment List

(1 of 4)

Equipment

Carrier Assembly with

–48 Vdc Power Unit (includes fan) 100 Vac Power Transformer Unit (Japan) 115 Vac Power Transformer Unit 230 Vac Power Transformer Unit 230 Vac Power Transformer Unit (UK)

Included in Carrier Assembly

Two Spare Slo-Blo 4 amp Fuses (100 and 1 15 Vac Power Transformer Unit)

Two Spare Slo-Blo 2 amp Fuses (230 Vac Power Transformer Unit)

Cable Ties (6) Wire 22 AWG Stranded (.2 feet)

Ordered Separately by Customer

COMSPHERE 72-inch Cabinet EIA standard 19-inch wide cabinet with 63 inches of interior vertical height for equipment installation.

Spare Power Units

–48 Vdc Power Module (includes fan) 100 Vac Power Transformer Unit (Japan) 115 Vac Power Transformer Unit 230 Vac Power Transformer Unit

Feature

Number

3000-B1-501 3000-B1-601 3000-B1-201 3000-B1-301 3000-B1-304

—

— —

4000-B2-200 106063571 —

3000-F1-022

—

3000-F1-200

—

Comcode Part Number

106459563 107073488 106779366 106789110

—

— —

106490766

—

106238538

—

— — — — —

190-0037-0431

190-0035-0031

650-0001-0433 714-0001-2231

870-1637-0011 327-0079-0031

327-1588-0111

327-0088-0031

Fan Module

100 V ac 1 15 Vac

230 V ac Spare –48 Vdc Power Module Air Filter 3000-F1-020 106656549 — Shared Diagnostic Control Panel (SDCP) with Ribbon Cable 3000-F1-001 106303274 870-1574-8201 Spare Ribbon Cable for SDCP 3000-F1-024 — 035-0280-0031 Models 381 1, 3911, and 3921 Speaker Panel 3800-F1-011 106597867 869-2250-0011 Shared Diagnostic Unit (SDU) 3000-F1-002 106304181 870-1575-8102 Rear Connector Plate, 25-Pin EIA-232/25-Pin V.35 3000-F1-021 106476229 869-2211-0011

3000-F1-801 3000-F1-007 3000-F1-800

107123572 106238496 107074854

022-0031-0331 022-0031-0031 022-0031-0431

D-33000-A2-GA31-D0 July 1999

Page 90

COMSPHERE 3000 Series Carrier

Table D-2

(2 of 4)

Equipment List

Equipment Part NumberComcode

Feature

Number

Filler Panel 3000-F1-008 106238504 — Modular DSU V.35 Adapter Cable, 25-Pin to 34-Pin

3000-F1-510 106476237 035-0135-0031

(Plug EIA-232/Socket V.35) 6-Port V.35 Interconnect Cable,1′ (26-pin/V.35) Carrier DBM, DBM-D, DBM-I, or DBM-V Network Interface

Module

Permissive (1 per 8 carrier slots)

Programmable (1 per 8 carrier slots) – only for V.32 DBM

3600-F3-500 106953508 035-0174-0031

3000-F1-003 3000-F1-004

106303845 106303852

870-1581-8100 870-1582-8100

and DBM-V Carrier 4-Wire Switched 56 kbps DBM or DBM-S Network

Interface Module (1 per 8 carrier slots)

3000-F1-025 106758741 870-1673-5000

Carrier 24-port Network Interface Module

NIM with the Make Busy and Service Line features

3000-F1-027

107764490

—

(1 per 8 carrier slots)

NIM without the Make Busy and Service Line features

(1 per 8 carrier slots)

3000-F1-028

107764508

—

Carrier DDD Network Interface Module

NIM with the Make Busy feature:

Permissive (1 per 8 carrier slots) Programmable (1 per 8 carrier slots)

3000-F1-010 3000-F1-011

106308489 106308505

870-1583-8100 870-1584-8100

NIM with the Make Busy and Service Line features:

Permissive (1 per 8 carrier slots) Programmable (1 per 8 carrier slots)

3000-F1-018 3000-F1-019

106597875 106597883

870-1629-8000 870-1630-8000

NIM with the Service Line feature:

Permissive (1 per 8 carrier slots) Programmable (1 per 8 carrier slots)

3000-F1-016 3000-F1-017

— —

870-1632-8000 870-1633-8000

DTE Interface Assembly 8-slot, 24-port DTE Interface Assembly 2-slot, 6-port

DB25P to 8-pin Modular Adapter Cable DB25S to 8-pin Modular Adapter Cable

Straight-In Plug-Socket Mass Termination (50-pin) Cable

Right-Angle Plug-Socket Mass Termination (50-pin) Cable

This NIM type does not provide the Make Busy or Service Line Feature.

D-4 July 1999 3000-A2-GA31-D0

3821-F1-001 3821-F1-002

3821-F1-510 3821-F1-511

10′ — 3000-F1-013 30′ — 3000-F1-014

10′ — 4400-F1-501 30′ — 4400-F1-504

107764474 107964482

107764136 107764144

107151797 107151813

106472806 106472814

— —

002-0050-0031 002-0051-0031

035-0254-1031 035-0254-3031

— —

Page 91

Table D-2

(3 of 4)

Equipment List

Equipment Part NumberComcode

Network Adapter Cables

50-pin to eight 6-pin Modular Network Interface Adapter, 1.5′,

(Canada Only)

50-pin to eight 8-pin Modular Network Interface

(DSU/JM8 Lease) Adapter for Digital or Lease Lines, 1.5′

50-pin to eight 8-pin Modular Network Interface

(RJ45S/Programmable) Adapter, 1.5′

50-pin to eight 6-pin Modular Network Interface

(RJ11C/Permissive) Adapter, 1.5′

50-pin to 24 6-pin Modular Network Interface

(RJ11C/Permissive) Adapter, 1.5′ Multiport Cables

TDM 60-pin Plug to five EIA-232 Socket Interface

Connectors for multiplexing and digital sharing, 6′

Digital Bridge 60-pin Plug to five EIA-232 Plug Interface

Connectors for multipoint dial backup, 6′ Telephone Cord 6-pin Modular

RJ11C/Permissive DDD (PSTN) Plug Telephone Cord 8-pin Modular

RJ45S/Programmable DDD (PSTN) Plug

Feature

Number

3000-F1-009

3600-F2-503

3600-F2-504

3600-F2-505

3821-F1-500

3600-F2-500

3600-F2-501

7′ — 4400-F1-531

25′ — 4400-F1-533

5′ — 4400-F1-541 14′ — 4400-F1-543 25′ — 4400-F1-544

106459621

106303837

106459548

106459928

—

106314651

106315294

106472913 106472921

— 106472962 106472970

035-0258-0231

035-0256-0231

035-0257-0231

035-0255-0231

035-0312-0531

035-0101-0631

035-0102-0631

035-0274-0731 035-0274-2531

035-0116-0231 035-0116-1431 035-0116-2531

NMS EIA-232 Interface Connector

871A Adapter Central-site 25-pin to 6-pin (873A) Adapter Remote-site Adapter Cables (M6A Y) 10-pin to 6-pin Cable (5′) (M6BK) ANALYSIS Gender Adapter (1 ′)

NMS 6-pin Modular Cable

Central Site: NMS Adapter feature 4400-F1-594 with Cable

4400-F1-590 4400-F1-594 6821-F1-518 4400-F1-577

4951-032F

3′ — 4400-F1-510 10′ — 4400-F1-511 25′ — 4400-F1-512

106473119 106473150 106261464 106473208 105757496

106472830 106472848 106472855

002-0026-0031 002-0025-0031 035-0185-5031 035-0106-0531 835-4507-1011

034-0090-0631 035-0224-1011 035-0275-2531

6821-F1-513 — —

Feature 4400-F1-512 NMS Adapter Cable/Diagnostic Extension, 1.5′

3000-F2-510 106768690 035-0173-0031 3600 Hubbing Device 3600-F3-300 — 870-1669-5100 DATAPHONE II Device

CC IN Connector Cable CC OUT Connector 871B Adapter DC IN Connector 870A Adapter DC OUT Connector 872A Adapter

These adapter cables are extended using a 4400-F1-501/504 or 3000-F1-013/014 cable.

4400-F1-576

4400-F1-591

4400-F1-589

4400-F1-592

— — — —

035-0107-0531 002-0027-0031 002-0030-0031 002-0022-0031

D-53000-A2-GA31-D0 July 1999

Page 92

COMSPHERE 3000 Series Carrier

Table D-2

(4 of 4)

Equipment List

Equipment Part NumberComcode

T1 Auxiliary Backplane 3100-F1-900 107170409 — T1 Network Interface Multiport Adapter, 50-pin socket to eight

8-pin Modular Plugs (RJ48H-RJ48C), 30″ Diagnostic Channel Extension, 8-pin Modular Plug to 8-pin

Modular Plug, 1′ T1 COM Port Adapter, DB25 Plug to 8-pin Modular Jack, 2″ T1 COM Port to Terminal Adapter Cable, DB25 Plug to 8-pin

Modular Plug, 14′ T1 COM Port to PC Adapter Cable, DB9 Socket to 8-pin

Modular Plug, 14′ T1 Front Panel Emulation (FPE) Diskette 3100-C1-010 406942110 — T1 Harmonica Block 3100-F1-940 — — EIA-530-A-to-V.35 Adapter Cable 3100-F1-570 107116550 035-0244-0031 EIA-530-A-to-RS-449/422 Cable, 1′ SNMP LAN Adapters for 3100 T1 DSU/CSUs with Power Pack,

COM Port 8-pin to 8-pin Cable, 14′, AUX Port 8-pin to 8-pin Cable, 14′, and Adapter 8-pin to 25-pin

Ethernet LAN Adapter Token Ring LAN Adapter

Feature

Number

3100-F1-930 107200313 035-0264-0231

3100-F1-910 107200339 036-0116-0131

3100-F1-920 107200321 002-0069-0031

3100-F1-540 406941534 —

3100-F1-550 406941542 —

3100-F1-580 107116543 —

21579 21576

107554321 107554354

— —

D-6 July 1999 3000-A2-GA31-D0

Page 93

Glossary

ac Alternating current.

ACCULINK A product family and a registered trademark.

active core The core that is transmitting data. For example, the DBM is the active core when the unit is

in Backup mode. In the case of a DBM-D, DBM-I, DBM-S, or DBM-V, the primary core and the active core are the same.

ADp Advanced Diagnostic protocol. An enhanced diagnostic communication protocol used with

the 6700 and 6800 Series NMS and with certain front panel diagnostic functions.

aggregate A single bit stream that combines two or more bit streams.

AIS Alarm Indication Signal. A signal transmitted instead of the normal signal to continue

transmission continuity and to indicate to the receiving terminal that a transmission fault exists at either the transmitting terminal or upstream of the transmitting signal. Sometimes referred to as Blue Alarm.

alarm An abnormal condition affecting modems, multiplexers, and data services units, usually

requiring attention. Major alarms indicate a service disruption; minor alarms are less severe, but are indications of a developing problem.

alternate port The unused Port 1, either the V.35 or the EIA-232-D interface, provides an aggregate data

analog signal A type of signal composed of continuously variable values, used to transmit voice or data

ASDS ACCUNET Spectrum of Digital Services. An AT&T network service offering the

Async Terminal This feature allows a device to be controlled from an async (asynchronous) terminal like an

AT command set A group of commands, issued from an asynchronous DTE, that allow control of the modem

path for an external dial backup unit.

over telephone lines.

alternatives of fractional T1, 9.6, 56 or 64 kbps (clear channel) digital, and analog access to a digital core network.

ASCII terminal. When enabled, the async terminal menus emulate the front panel without being limited by the 2-line, 16 character LCD, which can accommodate only three selections per screen.

while in Command mode. All commands must begin with the characters AT and end with a carriage return.

Glossary-13000-A2-GA31-D0 July 1999

Page 94

COMSPHERE 3000 Series Carrier

Auxiliary Backplane An 8-slot backplane that fits over one half of the open section of the COMSPHERE

3000 Series Carrier. This is a passive assembly that provides interconnect capability between T1 CSUs and T1 DSU/CSUs and provides all interface connectors.

AWG American Wire Gauge. An indication of wire size.

B-channel Bearer Channel. ISDN 64 kbps bearer channel used for voice, circuit, or packet switched

data.

backbone network The main circuit that carries the data before it is split into extended circuits going to their

final destination.

backplane A common bus at the rear of the COMSPHERE 3000 Series Carrier connecting each circuit

card slot to the SDCP and/or SDU. It also distributes low-voltage ac power to each slot.

bis Latin for “twice.” Used to distinguish the second version of a standard from other versions;

e.g., V.32bis.

BRI Basic Rate Interface. ISDN interface consisting of B-channel for information transfer and

D-channel for control and signaling.

bridge mode All ports are assigned to one digital-sharing group.

cabinet A structure that houses carriers (six maximum).

carrier The rack mounting that contains 17 slots: 1 SDU control slot and 16 device slots.

carrier-mounted A device that is designed for installation in a COMSPHERE 3000 Series Carrier and used at

central-site operations. Up to 16 devices can be installed per carrier, with six carriers per cabinet.

CC Control Channel. The diagnostic interface between an NMS and a network device.

CCITT Consultative Committee on International Telegraphy and Telephony. An advisory committee

established by the United Nations to recommend communications standards and policies. See ITU-TSS.

channel A bidirectional DS0, voice, or data path, for electrical transmission between two or more

points. Also called a circuit, line, link, path, or facility.

circuit A logical connection between 2 devices, either point-to-point or multipoint.

circuit pack lock A screw lock tab installed over a circuit card’s latch release tab to prevent the unit from

being removed without a tool.

COM port Communications port. A computer’s serial communications port used to transmit to and

receive data from a modem. The modem connects directly to this port.

COMSPHERE A proprietary product family and registered trademark.

connector An outlet on equipment and cables that provides a connection.

connector module An interface that is shipped with a modular DSU with TDM or MCMP and installed onto

Glossary-2 July 1999 3000-A2-GA31-D0

the rear of the COMSPHERE 3000 Series Carrier. The module contains six EIA-232 connectors, one for each port. The module also has a 26-pin high-density D-type connector located at the top of the module for V.35 operation on Port 1 or an aggregate data path.

Page 95

Glossary

connector plate See rear connector plate.

control A device that is, for diagnostic purposes, at the logical head of a hierarchical network. It is

the unit from which tests and commands are issued to other units on the same circuit. There is only one control per link.

CSA Canadian Standards Association.

CSU Channel Service Unit. Protects the T1 line from damage and regenerates the T1 signal.

daisy chaining Connecting the COM port of one device to the AUX port of another device to provide

connectivity.

DATAPHONE II The name of both a family of Paradyne NMS products (System Controller, Diagnostic

Console, and Network Controller) and the network management protocol used by these products.

D-channel The ISDN channel that carries signaling information to control call setup.

DB-25 connector A 25-pin connector that is used to connect a cable which enables communication between

two devices.

DBM The optional Dial Backup Module for the 3600 Series DSU. This module provides an

alternate data path in case of failure of the digital connection. DBMs available are: V.32

14.4 kbps analog DBM for backup through the PSTN, 2-wire Switched 56 DBM for digital backup service, 4-wire Switched 56 DBM for digital backup service, and ISDN DBM for digital backup service with one 64 kbps B-channel for data and voice and one D-channel for signaling information. The 4-wire Switched 56 DBM is only available for use in the U.S.

DBM-D A carrier-mounted dial backup unit that provides automatic dial backup and service

restoration of failed digital circuits using 2-wire access over 56 kbps switched digital services. The primary core is disabled and the unit functions as a DBM instead of a DSU.

DBM-I A carrier-mounted dial backup unit that provides automatic dial backup and service

restoration of failed digital circuits using an ISDN U-interface with two digital channels. The primary core is disabled and the unit functions as a DBM, not as a DSU.

DBM-S A carrier-mounted dial backup unit that provides automatic dial backup and service

restoration of failed digital circuits using 4-wire access over 56 kbps switched digital services. The primary core is disabled and the unit functions as a DBM, not as a DSU.

DBM-V A carrier-mounted V.32 dial backup unit that provides automatic dial backup and service

restoration of failed digital circuits over the PSTN. The primary core is disabled and the unit functions as a DBM, not as a DSU.

DBM-X A carrier-mounted dial backup unit that provides automatic dial backup and service

restoration of failed digital circuits. Can be DBM-D, DBM-I, DBM-S, or DBM-V. Primary core is disabled and does not include DSU functionality.

DC Diagnostic Channel. The diagnostic interface between two network devices, used to extend

the NMS diagnostics to downstream devices.

DCE Data Communications Equipment. The equipment that provides the functions required to

establish, maintain, and end a connection. It also provides the signal conversion required for communication between the DTE and the network.

Glossary-33000-A2-GA31-D0 July 1999

Page 96

COMSPHERE 3000 Series Carrier

DCP Diagnostic Control Panel. The front panel of a device that continuously provides status

information about the device’s operation and allows an operator to manage its operation. This is a generic term used for both the standalone and carrier-mounted models.

DDD Direct Distance Dialing. Telephone exchange service, the PSTN, that enables a telephone

service user to access telephone lines without operator assistance.

DDS Digital Data Service, such as DATAPHONE Digital Service or ACCUNET Spectrum of

Digital Services, that provides digital communication circuits.

device A standalone or carrier-installed circuit card.

Diagnostic Channel A digital interface between a DSU and a modem used to extend diagnostics to the DSU via

the modem.

Diagnostic Console A DATAPHONE II NMS that uses the DATAPHONE II protocol.

Dial A device operating on a PSTN line and requiring a dialing method and protocol to conduct

data transmission.

dial network See PSTN.

digital bridging Provides the ability for dial backup of a multipoint configuration by bridging the signal on

the digital side of the front end panel.

DIP switch Dual In-line Package switch.

D-lead control A control signal method which causes the associated modem to go off-hook in the Originate

mode. With D-lead control signaling, a single signal lead is associated with each modem. Momentary connection of this lead to common ground activates the signal.

DOC Canadian Department of Communication.

downstream In extended networks, the direction in which diagnostic messages flow from the diagnostic

control site to any intermediate links and then to the final tributary modem.

DPII DATAPHONE II. The name of both a family of Paradyne DCE and NMS products (SC, DC,

and NC), and the network management protocol used by these products.

DSA Digital Switched Access (see IEC).

DSU Data Service Unit. Data communications equipment that transmits digital data over a private

line. Also used for limited distance communications over the PSTN when a high-speed modem is not needed.

DSX-1 Digital Signal Cross Connect level 1. An interconnection point for terminals, multiplexers

and transmission facilities.

DS0 Digital signal level 0 (zero). A 64 kbps digital telecommunications signal or channel.

DTE Data Terminal Equipment. The equipment, such as a computer or terminal, that provides

EIA Electronic Industries Association. This organization provides standards for the data

EIA-232-D An Electronic Industries Association’s standard defining the 25-position interface between

Glossary-4 July 1999 3000-A2-GA31-D0

data in the form of digital signals.

communications industry to ensure uniformity of interface between DTEs and DCEs.

data terminal equipment and data communications equipment.

Page 97

Glossary

EIA-530-A An EIA standard for a high-speed, 25-position, DCE/DTE interface.

extended network The extension of a circuit where the tributary DCE is connected to a downstream (extended)

control DCE.

FA Facility Alarm. A failure condition reported to the NMS when there is a break in

communication with one or more tributary.

FCC Federal Communications Commission. Board of Commissioners that regulates all U.S.

interstate, intrastate, and foreign electrical communication systems that originate from the United States.

FEP Front-End Processor. A communications computer associated with a host computer that

manages the lines and routing of data through the network.

FGRD Frame ground.

ferrite choke A ferrite choke is attached to a cable on the COMSPHERE 3000 Series Carrier to reduce

electromagnetic interference and ensure compliance with FCC Part 15 Rules.

filler panel Prevents accidental contact with the COMSPHERE 3000 Series Carrier backplane. Installed

in all carrier slots that do not have a circuit card installed.

flex The flex option is available for TDM or MCMP. When installed, each port can be set

independently as either an EIA-232 or V.35 interface.

FPE Front Panel Emulation. FPE diskette is used with an external PC connected to a T1 CSU or

T1 DSU/CSU.

framing A control procedure used with multiplexed digital channels where bits are inserted so the

receiver can identify time slots allocated to each sub channel.

full-duplex The capability to transmit in two directions simultaneously.

Hz Hertz. A unit of frequency that equals one cycle per second.

IEC InterExchange Carrier. A company that provides inter-LATA (local exchange carrier)

telecommunications services, like AT&T, MCI, and US SPRINT. Access to these services can be provided through DDS dedicated channels, T1.5 dedicated access channels, or digital switched access (DSA) channels.

IOC ISDN Ordering Code.

ISDN Integrated Services Digital Network. Provides capability to carry voice and data while

sending signaling on the D-channel.

ITU-TSS International Telecommunications Union Telecommunications Standardization Sector. An

advisory committee established by the United Nations to recommend communications standards and policies and allocate transmission frequencies. Before March, 1993, it was called CCITT.

JM8 A jack used for leased-line networks. Pins 1 and 2 are the transmit pair and Pins 7 and 8 are

kbps Kilobits per second (thousand bits per second).

LADS Local Area Data Set is used to provide a point-to-point link between two devices (also

the receive pair.

called LDM).

Glossary-53000-A2-GA31-D0 July 1999

Page 98

COMSPHERE 3000 Series Carrier

LAN Local Area Network. A network that spans a small geographic area (e.g., a building).

LATA Local Area Transport Area. A region served by a LEC that consists of one or more area

codes.

LCD Liquid Crystal Display. Thin glass plates containing liquid crystal material. When voltage is

applied, the amount of light able to pass through the glass plates is altered so that messages can be displayed.

LDM Limited-Distance Modem (also called a local area data set or LADS).

leased line A private telephone line connection exclusively for the user. No dialing is necessary.

LEC Local Exchange Carrier. A company that provides intra-LATA (local exchange carrier)

telecommunications services, like NYNEX or Bell South.

LED Light-Emitting Diode. A light or status indicator on the control panel that glows in response

to the presence of a certain condition (e.g., an alarm).

Make Busy An additional capability for DDD NIMs. This feature is useful when modems are used in a

‘‘hunt” or ‘‘rotary” group. The Make Busy feature ties the Tip and Ring signals together so that the modem appears busy.

MCMP Multichannel Multipoint. A circuit card that enables the support of up to six independent

applications over a single multipoint digital facility. The MCMP capability can support up to 40 tributary DSUs, each optioned with an MCMP card.

MI/MIC Mode Indicate and Mode Indicate Common. A control signal method which causes the

associated modem to go off-hook in the Originate mode. With MI/MIC signaling, two leads are provided, usually via Pins 3 and 6 of an 8-position modular VF connector: Mode Indicate and Mode Indicate Common. Actuation of the signal is by momentary connection of these two leads.

modem MOdulator/DEModulator. A device used to convert data from a digital signal to an analog

signal so that data can be transmitted over a telephone line. Once the data is received, the analog signal is converted back into a digital signal.

modular circuit card A circuit card that contains gold finger contacts on the rear edge of the circuit card. A

modular circuit card can be removed from the front of the carrier without disturbing DTE cables.

multiplex To combine many low-speed data sources into a single, high speed serial data stream. The

data is coded at transmission, and decoded at reception. Some multiplexing techniques include Frequency Division Multiplexing (FDM), Time Division Multiplexing (TDM), and Statistical Multiplexing (Stat MUX).

multipoint circuit A special type of circuit where one control device communicates in a broadcast mode with

one or more tributary devices. Communication from a tributary device is always directly to the control device, and not to any of the other tributary devices.

multipoint line A circuit connecting one control modem with one or more tributary modems.

MUX Multiplexer. A device that enables the simultaneous transmission of multiple independent

network address The user-assigned identification number for a particular device. The network address is used

Glossary-6 July 1999 3000-A2-GA31-D0

data streams into a single high-speed data stream.

by a node to communicate with other nodes connected to it.

Page 99

Glossary

Network Controller An NMS that uses the DATAPHONE II protocol.

Network Interface The digital network vendor’s termination device (modular jack, terminal block, etc).

NIM Network Interface Module. The interface provided, up to two per carrier, for the PSTN.

NMS Network Management System. A computer system used for monitoring and controlling

network devices.

non-modular circuit card A carrier-mounted circuit card with connectors mounted onto the card. This circuit card type

requires that the DTE cables be disconnected before the circuit card is removed from the carrier.

permissive interface A dial modem operating mode characterized by a fixed output power level of –9 dBm.

physical address The diagnostic address of a control DSU or modem derived from its location in the carrier:

its carrier and slot number.

point-to-point circuit A data network circuit with one control and one tributary device.

power transformer unit Provides low voltage ac power to the COMSPHERE 3000 Series Carrier; internal power

distribution bus.

primary core The circuit card that is normally running when power is supplied to the unit. In the case of a

DBM-D, DBM-I, DBM-S, or DBM-V, the primary core and the active core are the same.

programmable interface A dial modem operating mode characterized by an output power level (–12 to 0 dBm) set by

a programming resistor in the datajack. It is one of two possible modes of operation for DSUs or modems connected to dial lines.

protocol The rules for timing, format, error control, and flow control during data transmission.

PSTN Public Switched Telephone Network. A network shared among many users who can use

telephones to establish connections between two points.

punchdown block Used for hardwiring cable circuits of a network interface.

rear connector plate Used with modular devices, a connector plate is installed onto the rear of the COMSPHERE

3000 Series Carrier. It contains two DTE connectors and functions as an interface between the modular device and the DTE.

REN Ringer Equivalence Number. Number of wires that can be connected to a telephone line.

RJ11C A type of 6-position jack normally used with permissive dial networks and telephone sets.

RJ45 A type of 8-position jack normally used with programmable dial networks.

RMA Return Material Authorization. Provided by customer assistance center for equipment return.

RS-232-D An Electronic Industries Association’s standard defining the 25-position interface between

data terminal equipment and data communications equipment.

RS-449 An EIA standard for a general-purpose, 37-position, DCE/DTE interface.

Glossary-73000-A2-GA31-D0 July 1999

Page 100

COMSPHERE 3000 Series Carrier

SDCP Shared Diagnostic Control Panel. A feature that allows carrier-mounted devices to share the

same diagnostic control panel. Installed into one COMSPHERE 3000 Series Carrier, it controls and monitors the devices in all the carriers in the cabinet. A single SDCP can control up to 8 carriers, with a total of 128 devices.

SDU Shared Diagnostic Unit. A circuit card installed in Slot 0 of the COMSPHERE 3000 Series

Carrier that provides an interface between an optional SDCP and/or network management system and the devices in the carrier.

Service Line An additional capability for DDD NIMs. This feature permits an extra dial line to be

connected to a COMSPHERE 3000 Series Carrier. It can be used for NIMs or as a backup line when the primary line goes down.

SGRD signal ground Signal ground. Pin 7 of an EIA RS-232 interface.

6-port connector module See connector module.

slot The carrier contains seventeen slots for circuit card installation.

speaker panel An optional component that can be installed on the carrier to provide audio monitoring of

any dial/lease modem.

switched 56 kbps digital service

A service provided by Local Exchange and InterExchange Carriers (LECs and IECs) that allow customers to use high-speed switched digital data capability without having to subscribe to private network services.

System Controller A DATAPHONE II NMS that uses the DATAPHONE II protocol.

tail circuit See extended network.

TDM Time Division Multiplexer. A device that enables the simultaneous transmission of multiple

independent data streams into a single high-speed data stream by simultaneously sampling the independent data streams and combining these samples to form the high-speed stream.

tributary A device that receives commands from other devices in the network.

T1 A term for a digital carrier facility used to transmit a DS1 formatted digital signal at

1.544 Mbps.

U-Interface Marks the demarcation line between the customer-provided equipment and the local

telephone company. Interface provides basic rate access.

UL Underwriters Laboratories, Inc. An organization which promotes product safety.

USOC Universal Service Ordering Codes. Generic telephone company service ordering codes.

Vac Volts alternating current.

VT-100 Terminal emulation mode used for asynchronous communications.

V.35 A CCITT standard for a high-speed, 34-position, DCE/DTE interface.

Glossary-8 July 1999 3000-A2-GA31-D0