Paradyne Comsphere 3500 Series User manual

COMSPHERE

3500 SERIES

DATA SERVICE UNITS

MODELS 3510 AND 3511

USER’S GUIDE

Document No. 3510-A2-GN32-60

March 1999

COMSPHERE 3500 Series Data Service Units

A March 1999 3510-A2-GN32-60

COMSPHERE

3500 Series Data Service Units

Models 3510 and 3511

User’s Guide

3510-A2-GN32-60

7th Edition (March 1999)

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

FCC Registration number: AW2USA-61422-DD-N

Bell Canada — Meets Bell Canada Metallic Specs

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

Service & 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 [email protected]. 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.

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.

Printed on recycled paper

Safety Instructions

B3510-A2-GN32-60 March 1999

!

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 adaptor.

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.

3. Slots and openings in the cabinet are provided for ventilation. To ensure reliable

operation of the product and to protect it from overheating, these slots and openings

must not be blocked or covered.

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. 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.

8. 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.

9. 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.

COMSPHERE 3500 Series Data Service Units

C March 1999 3510-A2-GN32-60

Notices

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Safety Instructions

D3510-A2-GN32-60 March 1999

Government Requirements

The Federal Communications Commission (FCC) requires that instructions pertaining to

connection to the telephone network be included in the installation and operation manual. Specific

instructions are listed in this section.

Notice to Users of the Digital Data Service

This equipment complies with Part 68 of the FCC rules. On the bottom of the equipment is a label

that contains, among other information, the FCC registration number for this equipment. If

requested, please provide this information to your telephone company.

If your DSU causes harm to the telephone network, the telephone company may discontinue your

service temporarily. If possible, they will notify you in advance. But if advance notice is not

practical, you will be notified as soon as possible. You will be advised of your right to file a

complaint with the FCC.

Your telephone company may make changes in its facilities, equipment, operations, or procedures

that could affect the proper operation of your equipment. If so, you will be given advance notice so

as to give you an opportunity to maintain uninterrupted service.

No repairs may be performed by the user. Should you experience difficulty with this equipment,

refer to the Equipment Warranty and Support section of Chapter 1.

For Digital Data Service (DDS) installations, inform the local telephone company of the

appropriate network channel interface code for the service you desire.

DDS

Interface

Code

Data Rate

(bps)

04DU5-24 2400

04DU5-48 4800

04DU5-96 9600

04DU5-19 19,200

04DU5-56 56,000

04DU5-64 64,000

The DDS Service Order Number is 6.0Y. The jack configurations required are RJ48S for the

Model 3510 DSU and RJ48T for the Model 3511. With an RJ48T configuration, you must specify

the number of data lines you require (1 through 8).

After the telephone company has installed the requested jack, you can connect the DSU with the

appropriate cable (provided). An FCC-compliant telephone cord and modular plug is provided

with this equipment. This equipment is designed to be connected to the telephone network or

premises wiring using a compatible modular jack that is Part 68 compliant.

COMSPHERE 3500 Series Data Service Units

E March 1999 3510-A2-GN32-60

i3510-A2-GN32-60 March 1999

Table of Contents

Preface

Objectives And Reader Assumptions v. . . . . . . . . . . . . . . . . . . . . . . . . .

Contents Summary v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Related Documents v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Reference Documents v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1. Introduction

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

Features 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Technical Specifications 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Equipment Warranty and Support 1-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2. Principles of Operation

Network Configurations 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DSU Compatibility 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2600 Series Compatibility 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Local Area Data Set (LADS) Operation 2-4. . . . . . . . . . . . . . . . . . . . . . . .

3. Operation

Overview 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Model 3510 Faceplate 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Model 3511 Faceplate 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Faceplate Operation 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Diagnostic Tests 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting 3-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2600 Series DSU Emulation 3-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

COMSPHERE 3500 Series Data Service Units

ii March 1999 3510-A2-GN32-60

4. Installation

Overview 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation Planning 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Important Safety Instructions 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation Procedures 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Local Area Data Set (LADS) Operation 4-11. . . . . . . . . . . . . . . . . . . . . . . .

Hardware Strapping 4-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DSU Strap Setting Descriptions 4-24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Alarm Output Installation 4-26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Appendices

A. Connector Pins A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

B. Timing During Testing B-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C. Equipment List C-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Glossary

Index

Table of Contents

iii3510-A2-GN32-60 March 1999

List of Figures

Figure Page

1-1 Model 3510 DSU 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-2 Model 3511 DSU and Rear Connector Plates 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-1 Example Point-to-Point and Multipoint Networks 2-2. . . . . . . . . . . . . . . . . . . . . . . . . .

2-2 Multipoint DATAPHONE II 2600 DSU Network 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . .

2-3 Local Area Data Set Connectivity 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-1 Model 3510 Faceplate 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2 Model 3511 Faceplate 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-3 Device Test Diagram 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-4 Digital Test (Point-to-Point) Diagram 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-5 Digital Test (Multipoint) Diagram 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-6 Local Loopback – DTE Test Message Test Diagram 3-12. . . . . . . . . . . . . . . . . . . . . . . .

3-7 Channel Loopback Diagram 3-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-8 Out-of-Service Condition Troubleshooting Flowchart 3-15. . . . . . . . . . . . . . . . . . . . . . .

3-9 No Signal Condition Troubleshooting Flowchart 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . .

3-10 Streaming Terminal Condition Troubleshooting Flowchart 3-17. . . . . . . . . . . . . . . . . . .

4-1 Model 3510 DSU, Rear Panel 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-2 Front View of the COMSPHERE 3000 Series Carrier 4-6. . . . . . . . . . . . . . . . . . . . . . .

4-3 Rear View of the COMSPHERE 3000 Series Carrier 4-7. . . . . . . . . . . . . . . . . . . . . . .

4-4 Model 3511 DSU Installation and Circuit Pack Lock 4-8. . . . . . . . . . . . . . . . . . . . . . . .

4-5 Model 3511 DSU V.35 Adapter Installation (Feature Number 3000-F1-510) 4-9. . . . .

4-6 Model 3510 DSU Strap Access 4-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-7 Model 3511 DSU CCA Strap and Fuse Locations 4-13. . . . . . . . . . . . . . . . . . . . . . . . . .

4-8 DSU Strap Default Settings 4-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-9 Data Rate (Speed) Selection (Switch S2) for Model 3510 and Model 3511 DSUs 4-15. .

4-10 Timing Signal Source Selection (Switch S1) 4-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-11 S1 Default Settings, Model 3510 and Model 3511 DSUs 4-16. . . . . . . . . . . . . . . . . . . . .

4-12 S2 Default Settings, Model 3510 and Model 3511 4-17. . . . . . . . . . . . . . . . . . . . . . . . . .

4-13 S3 Default Settings, Model 3510 and Model 3511 4-17. . . . . . . . . . . . . . . . . . . . . . . . . .

4-14 S5 Default Settings, Model 3510 and Model 3511 4-18. . . . . . . . . . . . . . . . . . . . . . . . . .

A-1 8-Pin RJ48S A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A-2 Model 3511 DSU Rear Connector Plate A-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A-3 V.35 Adapter (Feature Number 3000-F1-510) A-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

B-1 DSU Timing Chart B-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

COMSPHERE 3500 Series Data Service Units

iv March 1999 3510-A2-GN32-60

List of Tables

Table Page

1-1 Technical Specifications for Model 3510 and Model 3511 DSUs 1-4. . . . . . . . . . . . . . .

2-1 DSU Compatibilities 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-1 3500 Series Indicators and Switches 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2 Device Test Procedure 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-3 Digital Test (Point-to-Point) Procedure 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-4 Digital Test (Multipoint) Procedure 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-5 Local Loopback – DTE Test Message Procedure 3-13. . . . . . . . . . . . . . . . . . . . . . . . . . .

3-6 Local Loopback – DTE Test Message Alternative Procedure 3-13. . . . . . . . . . . . . . . . . .

4-1 Fan Module Cooling Requirements 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-2 3500 Series DSU LADS Connection 4-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-3 Model 3510 and Model 3511 DSU Straps S1 through S5 4-18. . . . . . . . . . . . . . . . . . . . .

4-4 Timing Signal Source Selection for Both Model 3510 and Model 3511 4-20. . . . . . . . . .

4-5 Data Rate Selection for Both Model 3510 and Model 3511 4-21. . . . . . . . . . . . . . . . . . .

4-6 Model 3510 DSU S4 Selection 4-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A-1 RJ48S Digital Network Connector Pins for the Model 3510 DSU A-1. . . . . . . . . . . . . .

A-2 RJ48T Digital Network Connector Pins (50-Pin) for the COMSPHERE

3000 Series Carrier (Model 3511) A-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A-3 Standalone (Model 3510) Canadian Adapter Cable Pins A-2. . . . . . . . . . . . . . . . . . . . .

A-4 Model 3510 and 3511 DSU 25-Pin EIA-232-D/V.24 Connector Pins A-3. . . . . . . . . . .

A-5 Model 3510 DSU 34-Pin V.35 Connector Pins A-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A-6 Model 3511 DSU 25-Pin CCITT V.35 Connector Pins A-5. . . . . . . . . . . . . . . . . . . . . . .

v3510-A2-GN32-60 March 1999

Preface

Objectives and

Reader Assumptions

This manual contains information for the installation

and operation of the Model 3510 (standalone) and

Model 3511 (carrier-mounted) Data Service Units

(DSUs).

It is assumed that you are familiar with the functional

operation of digital data equipment, DDS, DSUs and your

DTE devices.

Contents Summary

Chapter 1 gives a general overview of the 3500 Series

DSUs, describes each model’s features, and lists their

technical specifications.

Chapter 2 describes the network control interfaces

offered by the 3500 Series DSUs and the network

configurations they support, including compatibility with

other data communications equipment.

Chapter 3 describes normal operation of the

Model 3510 and Model 3511 DSUs.

Chapter 4 provides DSU installation instructions and

procedures for setting the hardware straps.

Appendix A contains interface connector pin

assignment information.

Appendix B provides timing source charts.

Appendix C provides an equipment list.

The Glossary provides definitions of all acronyms and

product-specific terms used in this guide.

Related Documents

3000-A2-GA31 COMSPHERE 3000 Series

Carrier, Installation Manual

Call your sales representative for additional product

documentation.

Paradyne documents are also available on the World

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

Technical Manuals.

Reference Documents

ANSI T1.410–1992

AT&T Technical Reference 62310 (11/87)

INC Compatibility Bulletin CB-INC-101 (10/86)

Pacific Bell Publication PUB L-780035-PB/NB (9/88)

Pacific Bell Publication PUB L-780036-PB/NB

(10/88)

EIA-232-D/V.24 (ISO 2110)

CCITT V.35 (ISO 2593)

Bell Canada DCTE Specifications (7/89)

COMSPHERE 3500 Series Data Service Units

vi March 1999 3510-A2-GN32-60

1-13510-A2-GN32-60 March 1999

Introduction

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

Features 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Technical Specifications 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Equipment Warranty and Support 1-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Overview

The 3500 Series Data Service Units (DSUs) are high

quality, flexible, economical devices designed for

incorporation into point-to-point and multipoint digital

networks operating at data rates up to 64,000 bits per

second (bps). These DSUs are extremely reliable,

compatible with other DSUs, and offer basic diagnostic

capabilities.

Both the Model 3510 and Model 3511 DSUs

(Figure 1-1) use similar circuit cards. Switches on the

circuit card allow you to select various options for

matching your data terminal equipment (DTE) to the

digital network. By selecting the appropriate data rates,

you can also use Model 3510 or Model 3511 DSUs as

local area data sets (LADS).

Figure 1-1. Model 3510 DSU

1

COMSPHERE 3500 Series Data Service Units

1-2 March 1999 3510-A2-GN32-60

Both the Model 3510 and Model 3511 DSUs are

compatible with earlier DATAPHONE II 2500 Series and

2600 Series DSUs, and they incorporate a number of

enhancements. Model 3510 supersedes the 2556B, 2596B,

2656B, and 2696B DSUs. Model 3511 supersedes the

2556A and 2596A DSUs.

You can obtain compact standalone Model 3510 DSUs

for desktop installation or circuit card Model 3511 DSUs

for carrier-mounted installation (up to 16 units) in a

COMSPHERE 3000 Series Carrier.

The Model 3511 DSU (Figure 1-2) contains ‘‘gold

finger” contacts on the rear edge of its circuit card and is

used with a rear connector plate. The rear connector plate

contains two 25-pin (DB25) DTE connectors, a 25-pin

EIA-232-D/V.24 connector and a 25-pin ITU-T V.35

connector, which is shipped with a V.35 adapter. If you

intend to use a V.35 interface, use the adapter to convert

the DB25 V.35 interface (the bottom connector) to a

standard V.35 34-pin interface.

NOTE

All of the technical information in

this manual applies to both DSU

models, unless otherwise noted.

Gold Contacts

Modular DSU

25-Pin

EIA-232-D

Connector

25-Pin

V.35

Connector

Backplane

Connector

Figure 1-2. Model 3511 DSU and Rear Connector Plate

Introduction

1-33510-A2-GN32-60 March 1999

Features

The Model 3510 and Model 3511 DSUs contain the

following standard features:

• Switch-selectable data rates of 2400, 4800, 9600,

19,200, 38,400, 56,000, and 64,000 bps.

• Compatibility with the channel interface defining

DDS service in AT&T Technical Reference 62310.

• Additional option switch settings, allowing

19,200 bps loop operation at levels of –10 dBm, 0,

or +6 dBm in order to meet the requirements of

Integrated Network Corporation compatibility

bulletin CB-INC-101 and the nonadaptive Standard

Service 19,200 bps loop rate specified in Pacific

Bell publications PUB L-780035-PB/NB and PUB

L-780036-PB/NB.

• Complies with AT&T 64K Clear Channel

capabilities.

• EIA-232-D/V.24 interfacing at data rates through

19,200 bps, and ITU-T V.35 interfacing at data

rates through 64,000 bps.

• Synchronous data transmission capability.

• Local, digital and remote loopbacks, plus built-in

test pattern generator/checker.

• Both models provide streaming terminal fault,

out-of-service, and no signal indication capability.

• Elastic store for extended circuits.

• The capability to respond to digital network

mandatory channel service unit (CSU) loopback,

loop current reversal, and nonlatching DSU

loopback requests. You can configure a Model 3510

or Model 3511 DSU for 64,000 bps clear channel

operation, and it will respond to the network

latching loopback code.

• Functional interchangeability as either a control or

tributary DSU.

• Both DSUs can be configured to function as a

point-to-point LADS at 2400, 4800, 9600, 19,200,

38,400, 56,000, and 64,000 bps.

• Compatible with earlier DATAPHONE II

2500 DSUs and 2600 tributary DSUs.

COMSPHERE 3500 Series Data Service Units

1-4 March 1999 3510-A2-GN32-60

Technical Specifications

Table 1-1 lists the technical specifications for

Model 3510 and Model 3511 DSUs.

Table 1-1

(1 of 2)

Technical Specifications for Model 3510 and Model 3511 DSUs

Technical Specifications Criteria

APPLICATION Serial synchronous, protocol-independent, binary data in full

duplex, point-to-point, and multipoint operation

DDS DATA RATE Operates at 2400, 4800, 9600, 19,200, 38,400, 56,000 and

64,000 bps

MODULATION Bipolar return to zero with alternate mark inversion (AMI) encoding

LINE REQUIREMENTS

DSU

LADS

Digital Data Service leased 4-wire lines

4-wire private metallic lines

ENVIRONMENT

Operating Temperature

Relative Humidity

Storage Temperature

Shock and Vibration

40 degrees F (4 degrees C) to 120 degree F (49 degrees C)

5% to 95% (noncondensing)

–4 degrees to 158 degrees F, –20 degrees to 70 degrees C

Withstands normal shipping and handling

POWER REQUIREMENTS

Model 3510

Model 3511

90 — 132 Vac, 0.07 amp at 117 Vac, 60 Hz ± 3, 5.8 watts (typical)

Supplied by carrier, 6.0 watts

HEAT DISSIPATION

Model 3510

Model 3511

19.5 Btu/hr (typical)

20.5 Btu/hr (typical)

MOUNTING

Model 3510

3000 Series Carrier

Single desktop unit

EIA Standard 19-inch cabinet, or 23-inch cabinet

Introduction

1-53510-A2-GN32-60 March 1999

Table 1-1

(2 of 2)

Technical Specifications for Model 3510 and Model 3511 DSUs

Technical Specifications Criteria

PHYSICAL DIMENSIONS

Model 3510

Height

Width

Depth

Weight

Model 3511

Height

Width

Depth

Weight

Rear Connector Plate

Height

Width

Depth

Weight

2.13 inches (5.4 cm)

7.60 inches (19.3 cm)

12.13 inches (30.8 cm)

2.60 pounds (1.2 kg)

7.13 inches (18.1 cm)

1.00 inches (2.5 cm)

13.40 inches (34 cm)

0.73 pounds (0.3 kg)

5.25 inches (13.3 cm)

0.88 inches (2.2 cm)

1.00 inches (2.5 cm)

0.19 pounds (.09 kg)

DTE INTERFACES EIA-232-D/V.24 (ISO 2110) V.35 (ISO 2593)

(Note that the Model 3511 DSU provides an electrical interface,

but a rear connector plate is required for the physical interface.)

NETWORK INTERFACE Full compliance with AT&T Technical Reference 62310, Digital

Data System Channel Interface Specification, November, 1987.

Compatible with the DDS DSU portions of Bell Canada Digital

Circuit Terminating Equipment (DCTE) Specifications,

July, 1989, Issue 1

APPROVALS

FCC Part 15

FCC Part 68

UL

Model 3510

Model 3511, 3000 Series Carrier

CSA

Safety

Model 3510

Model 3511, 3000 Series Carrier

Emissions

Bell Canada

Class A Digital Device

Reg. No. AW2USA-61422-DD-N

Listed UL 1950

Recognized UL 1950

Certified CSA 22.2 No. 220—M1986

Certified CSA 22.2 No. 950—M89

CSA 108.8 Class A

“DCTE Specifications,” July 1989, Issue 1

COMSPHERE 3500 Series Data Service Units

1-6 March 1999 3510-A2-GN32-60

Equipment Warranty

and Support

Contact your sales or service representative directly for

any help needed. For additional information concerning

warranty, sales, service, repair, installation, documentation

or training, use one of the following methods:

• Via the Internet: Visit the Paradyne World Wide

Web site at http://www.paradyne.com

• Via 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

2-13510-A2-GN32-60 March 1999

Principles of Operation

Network Configurations 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Point-to-Point 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Multipoint 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DSU Compatibility 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2600 Series Compatibility 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Local Area Data Set (LADS) Operation 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Network Configurations

Connections between 3500 Series DSUs or between

3500 Series DSUs and compatible DCEs are configured in

either of two ways: point-to-point or multipoint.

Point-to-Point

In a point-to-point configuration (Figure 2-1), there is

one DSU at each end of the digital facility. The local

DSU, and likewise the remote, may be a 3500 Series unit

or one of the other devices listed in the DSU

Compatibility section.

The primary channel characteristics of these DSUs are

identical to 2500 Series and 2600 Series DATAPHONE II

DSUs and Paradyne Model 3056 and 3456 DSUs;

therefore, you can configure these devices for installation

at either end of a network containing any compatible

DSU, such as Paradyne Model 3056 units.

Multipoint

In a multipoint configuration (Figure 2-1), a control

DSU is connected to multiple tributaries communicating

at the same speed on a single digital facility.

For multipoint networks, the DSU at the host end of

the circuit is designated as the control; the other DSUs are

designated the tributaries. The control initiates remote

diagnostic commands; the tributary responds to

commands from the control or from its own local front

panel.

A 3500 Series DSU can be used as a control or as a

tributary in non-network managed networks.

Figure 2-1 depicts a basic multipoint network

containing Model 3511 DSUs in a COMSPHERE

3000 Series Carrier at the local end of the network, and a

combination of standalone 2500 Series DATAPHONE II

DSUs and a Model 3510 DSU at the remote end.

For 2600 Series diagnostic multipoint networks, the

Model 3510 DSU can also be installed as a tributary DSU.

In this application, the standalone Model 3510 DSU at the

tributary end is functionally equivalent to a DATAPHONE

II 2600 Series DSU, and no additional support is needed.

2

COMSPHERE 3500 Series Data Service Units

2-2 March 1999 3510-A2-GN32-60

Figure 2-1. Example Point-to-Point and Multipoint Networks

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