General DataComm TMS-3000 User manual

Publication No. 036R480-000

Issue 6, January 1995

OPERATING AND INSTALLATION INSTRUCTIONS

FOR

TMS-3000

CELP VOICE CHANNEL

MODULE

General DataComm, Inc.

MIDDLEBURY, CONNECTICUT

06762-1299

ATTENTION!

STATIC SENSITIVE DEVICES

PROPER HANDLING AND GROUNDING

PRECAUTIONS REQUIRED

This equipment contains electrostatic sensitive devices. Use ESD precautionary

procedures when removing or inserting parts or printed circuit (pc) cards. Keep parts

and pc cards in their antistatic packaging material until ready to install.

The use of an antistatic wrist strap, connected to the grounded equipment frame or

chassis, is recommended when handling pc cards during installation, removal, or

setting of on-board option switches. Do not use a conductive tool, such as a screwdriver

or paper clip, to set the position of the option switches.

INSTALLATION SAFETY INSTRUCTIONS

a. Never install telephone wiring during a lightning storm.

b. Never install telephone jacks in a wet location unless the jack is specifically

designed for wet locations.

c. Never touch uninsulated telephone wires or terminals unless the telephone line has

been disconnected at the network interface.

d. Use caution when installing or modifying telephone lines.

CAUTION

Potentially hazardous voltages exist within this unit.

TMS-3000

CELP VOICE CHANNEL

MODULE

(GDC PART NOs. 036M285-001 through -005)

General DataComm, Inc. (GDC)

Middlebury, Connecticut 06762-1299

This product was designed and manufactured by

WARNING

This equipment has been tested and found to comply 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 communica-

tions. 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 user is cautioned that any changes or modifications not expressly approved

by the party responsible for compliance would void the user's authority to operate

the equipment.

CRC-REQUIRED NOTIFICATION

This equipment is a Class A digital apparatus which complies with the Radio

Interference Regulations, CRC c.1374.

PUBLICATION NOTICE

This manual has been carefully compiled and checked for accuracy. The infor-

mation in this manual does not constitute a warranty of performance. Further-

more, GDC reserves the right to revise this publication and make changes from

time to time in the content thereof. GDC assumes no liability for losses incurred

as a result of out-of-date or incorrect information contained in this manual.

The features described herein may not exist on all versions of the software and

are subject to change without notice.

READER’S COMMENTS

Comments regarding this manual should be addressed to:

Publications Department

General DataComm, Inc.

1579 Straits Turnpike

P.O Box 1299

Middlebury, CT 06762-1299

PROPRIETARY NOTICE

This publication contains information proprietary and confidential to General

DataComm, Inc. Any reproduction, disclosure, or use of this publication is

expressly prohibited except as General DataComm, Inc., may otherwise authorize

in writing.

FCC-REQUIRED NOTIFICATION

FOR USERS OF FCC-REGISTERED EQUIPMENT

Read before using this technical manual or installing subject equipment.

This equipment complies with Part 68 of the Federal Communications Commission (FCC) Rules and

Regulations. Connection of data communication equipment to the public telephone network is

regulated by the FCC Rules and Regulations. These regulations require:

A. All connections to the telephone network must be made through standard plugs and telephone

company provided jacks or equivalent.

B. Connection of this equipment to party lines and coin telephones is prohibited.

C. If the telephone company asks you what equipment is connected to the telephone line, tell them to

which line the equipment is connected, and give them the FCC Registration number and Ringer

Equivalence number of the equipment. These numbers can be found on a label located on the back

of the front panel on all DataComm-type equipment and on the underside or rear panel of other

equipment.

D. If you experience trouble, disconnect the equipment from the telephone line to determine if the

equipment is malfunctioning. If it is, remain disconnected until the problem is corrected. Should

this equipment cause 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 informed of your right to file a

complaint with the FCC.

E. The telephone company may change its communication facilities, equipment, operations, and

procedures where reasonably required for operation. If this occurs, the telephone company will

notify you in writing.

F. It is the user's obligation to notify the telephone company prior to disconnecting equipment from

1.544 Mbps digital service.

G. According to Part 68 of the FCC Rules and Regulations, customers are not authorized to repair or

modify this equipment. Any repair or modification will null and void the FCC registration and

the warranty of this equipment.

Rev. 4, October 1986

CANADIAN DEPARTMENT OF COMMUNICATIONS (DOC) REQUIRED NOTIFICATION

FOR USERS OF DOC-CERTIFIED EQUIPMENT

Read before using this technical manual or installing subject equipment.

The Canadian Department of Communications label identifies certified equipment. This certification

means that the equipment meets certain telecommunications network protective, operational, and

safety requirements. The Department does not guarantee the equipment will operate to the user's

satisfaction.

Before installing this equipment, users should ensure that it is permissible to be connected to the

facilities of the local telecommunications company. The equipment must also be installed using an

acceptable method of connection. In some cases, the company's inside wiring associated with a single

line individual service may be extended by means of a certified connector assembly (telephone

extension cord). The customer should be aware that compliance with the above conditions may not

prevent degradation of service in some situations.

Repairs to certified equipment should be made by an authorized Canadian maintenance facility

designated by the supplier. Any repairs or alterations made by the user to this equipment, or equipment

malfunctions, may give the telecommunications company cause to request the user to disconnect the

equipment.

Users should ensure for their own protection that the electrical ground connections of the power utility,

telephone lines, and internal metallic water pipe system, if present, are connected together. This

precaution may be particularly important in rural areas.

Caution: Users should not attempt to make such connections themselves, but should contact the

appropriate electric inspection authority, or electrician, as appropriate.

CANADIAN EMISSIONS REQUIREMENTS

“This digital apparatus does not exceed the (ClassA) limits for radio noise emissions from

digital apparatus set out in the Radio Interference Regulations of the Canadian Department of

Communications.”

READER SURVEY

Help us to produce a better manual by returning this page with your comments.

Name of Manual ____________________ Publication No. _________________ Issue No. ___

Overall rating of this manual Excellent Good Adequate Poor

Readability of text Very clear Good Adequate Poor

Installation Instructions Very clear Good Adequate Poor

Usefulness of graphics Useful Good Adequate Poor

Is this manual User Friendly? Yes Partly No

Did you find any errors? Yes No

If so, describe (List page No.)_______________________________________________________________________

____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Do you recommend additions/changes? Yes No

If so, describe _____________________________________________________________________________________

Any additional comments? __________________________________________________________________________

Name __________________________Title ______________________Date

Company _________________________________________________ Mail Drop _______________________________

City ___________________________ State ____________ ZIP Code or Country_____________________________

Telephone Number ____________________ FAX Number _____________________

Copy or remove this page and mail to:

Publications Department

Technology Center

General DataComm Industries, Inc.

Middlebury, Ct 06762-1299

TABLE OF CONTENTS

Section &

Subject Page

1 — INTRODUCTION

OVERVIEW ................................................................................................................................................. 1-1

FUNCTIONAL DESCRIPTION ..................................................................................................................1-1

FUNCTION OF THE TMS/SUPERVISORY CONTROLLER.................................................................... 1-2

TECHNICAL MANUALS............................................................................................................................1-2

EQUIPMENT LIST......................................................................................................................................1-3

SERVICE AND TRAINING ........................................................................................................................ 1-3

APPLICATIONS.......................................................................................................................................... 1-3

2 — INSTALLATION

UNPACKING AND HANDLING................................................................................................................2-1

INSTALLATION PROCEDURES................................................................................................................ 2-1

PREOPERATIONAL CHECK .....................................................................................................................2-1

OPTION SELECTION .................................................................................................................................2-1

MOUNTING OF CELP VOICE CHANNEL MODULE...............................................................................2-4

CELP VOICE CHANNEL SIGNALING .....................................................................................................2-5

E-Lead Signaling State ..............................................................................................................................2-6

E-Lead Polarity.......................................................................................................................................... 2-6

Noise Suppression Filter ...........................................................................................................................2-7

In-Band E&M Signaling ..........................................................................................................................2-7

E-Lead Loss of Sync...................................................................................................................................2-8

CELP Module Analog Levels .................................................................................................................... 2-9

Analog Input Fine Level Adjustments...................................................................................................... 2-10

Echo Canceller ........................................................................................................................................... 2-11

3 — OPERATION

OVERVIEW ................................................................................................................................................. 3-1

CONTROLS, INDICATORS AND CONNECTORS....................................................................................3-1

4 — PRINCIPLES OF OPERATION

OVERVIEW ................................................................................................................................................. 4-1

Base Card Operation .................................................................................................................................. 4-1

E&M Signaling (-001 Version) ................................................................................................................. 4-1

E&M Signaling (-002, -003, -004, -005 Versions) ....................................................................................... 4-2

Piggyback Card Operation ........................................................................................................................4-2

5 — TESTS

OVERVIEW ................................................................................................................................................. 5-1

TABLE OF CONTENTS (Cont.)

Section &

Subject Page

5 — TESTS (Cont.)

DATA PATH TESTS................................................................................................................................... 5-1

Digital Test................................................................................................................................................5-1

Control State Test....................................................................................................................................... 5-1

User Data Test ........................................................................................................................................... 5-1

1 kHz Tone Test ........................................................................................................................................ 5-1

SET dB LEVEL ADJUSTMENT.................................................................................................................. 5-2

TEST POINTS.............................................................................................................................................5-2

TECHNICAL ASSISTANCE PROCEDURE................................................................................................ 5-2

TRAINING ..................................................................................................................................................5-3

APPENDIX A — TECHNICAL CHARACTERISTICS

APPENDIX B — CELP VOICE CHANNEL MODULE APPLICATIONS

APPENDIX C — M-LEAD SIGNALING INTERFACES

APPENDIX D — CELP CIRCUIT VOICE LEVEL TESTING

APPENDIX E — CELP VOICE CHANNEL MODULE CONNECTOR PIN ASSIGNMENTS

APPENDIX F — GLOSSARY

INDEX

LIST OF ILLUSTRATIONS

Section &

Figure Page

2 — INSTALLATION

2-1 CELP VOICE CHANNEL MODULE OPTION LOCATIONS...........................................................2-3