40000_Bell_System_Technical_Reference_Catalog_Dec75 40000 Bell System Technical Reference Catalog Dec75

User Manual: 40000_Bell_System_Technical_Reference_Catalog_Dec75

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Bell System

TECHNICAL

REFERENCE

PUB 40000

Catalog

December 1975

TABLE

OF CONTENTS

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

ORDERING OF

TECHNICAL

REFERENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

ADMINISTRATION

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . • . . . . . 3

DATA

COMMUNICATIONS

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Facilities for Data Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Data Sets, Data Auxiliary Sets and Data Service Units . . . . . . . . . . . . . . . . . . . . . . . . 5

Data Communications Systems and Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Data Interconnection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

VOICE

COMMUNICATIONS

. . . . . . . . .

.. ..

.. .. ..

. .

.. ..

. . .

Protective Connecting Arrangements -Manual, Terminal . . . . . . . . . . . . . . . . . . .

Protective Connecting Arrangements -Automatic,

Terminal.................

Protective Connecting Arrangements -Manual, System

...................

_..

Protective Connecting Arrangements -Automatic,

System.........

. . . . . . . . .

Protective Connecting Arrangements -Private Line . . . . . . . . . . . . . . . . . . . . . . . .

Protective Connecting Arrangements -Miscellaneous. . . . . . . . . . . . . . . . . . . . . . . 20

Protective Connecting Arrangements -PBX Adjuncts. . . . . . . . . . . . . . . . . . . . . . .

RADIO

AND

TRANSMISSION

ENGINEERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

AlTESTATION

PROGRAMS

. . . . .

.. ..

.. .. .. ..

.. ..

.. .. ..

.. ..

. . . . . . . . . . . 23

CONFORMANCE

PROGRAMS

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

BELL

SYSTEM

TECHNICAL

REFERENCES

GENERAL

Bell System Technical References provide inter-

face information to designers and manufacturers

business machines, communications systems

and terminal equipment. The subjects covered by

these Technical References include data set in-

ter.face

specifications,

data

communications

systems

and

terminals, data connecting arrange-

ments,

protective

connecting

arrangements,

various

transmission channels and

services,

PICTUREPHONE®service, Attestation Programs

and Conformance Programs. At the present time,

these Technical References fall into six basic

categories: Data Communications, Voice Com-

munications, Radio and Transmission Engineer-

ing,

PICTUREPHONE®service,

Attestation

Programs and Conformance Programs. As addi-

tional needs are determined, new Technical

References within these categories and new

categories will be provided.

Technical References are prepared

two

forms,

Standard

and

Preliminary. Standard Technical

References (e.g., Data Sets

201

and

201

B -

August 1969) are provided for equipment and

services

which

are

expected

remain

unchanged and avai I able for a relatively long

period of time. Preliminary Technical References

(e.g.,

AD1

-Preliminary-October

1974) are

provided for new equipment and services and in-

dicate information which may be changed

revised

a relatively short time. This does not

mean

that a manufacturer should not build equip-

ment that is compatible with the information listed

but it does offer a caution that the information

presented may change.

This catalog of Technical References, to be

published as required, lists all current Bell

System Technical References. Included for each

Technical Reference is the title, a synopsis and

ordering number

(PUB4XXXX).

addition, a

listing is provided to permit ordering of complete

sets of Technical References

either the Data

Communications

Voice

Communications

categories. Companies

standing order

dis-

tribution will automatically receive a copy

the

catalog.

® Registered Service Mark

AT&T Co.

Each

Protective

Connecting

Arrangement is

further defined by a Uniform Service Order Code

(USOC), e.g., QKT, which should be used for

or-

dering purposes when the customer desires the

installation

a connecting arrangement.

It is the responsibility

the manufacturer

ad-

vise the customer

the proper USOC; and it is

the customer's responsibility to order the proper

USOC from the Telephone Company.

ORDERING

TECHNICAL

REFERENCES

One-Time

Orders

All

orders

should

indicate

the

Technical

Reference(s) desired by catalog number and

quantity using the following format:

(Quantity) Technical References (Catalog

Number)

If all Technical References

either the Data

Communications

Voice

Communications

categories are desired, they may be ordered as a

set using the catalog number assigned to that

particular category. For example:

(Quantity) Complete Set of Voice

Communications Technical

References -PUB42000

Standing

Orders

addition to one-time orders

is also possible

to place a standing order for

I new and revised

Technical References

a given category (i.e.,

Transmission Engineering

PICTUREPHONE

ser-

vice or Attestation Programs). To place a stand-

ing order, use the following words:

Standing order for (Quantity) copies

all

new

[Category,

(e.g.,

Voice,

Data

Transmission)] Technical References.

Bell

System

Companies

Bell System Organizations may order Technical

References using Form

SD-1

.80.80 and address

it to:

Western Electric Company, Incorporated

Indiana Publication Center

Box 26205

Indianapolis, Indiana

46226

Non-Bell

Companies

Non-Bell Companies should submit written re-

quests for Technical References to:

American Telephone and Telegraph Co.

Supervisor -Information Distribution Center

1 95 Broadway, Room 208

New York, New York 10007

Pricing

Information

All requests should include both billing and ship-

ping addresses. Billing will be rendered by the

Western Electric Company, therefore, all checks

should be made payable to

them.

The current Commercial Price for Technical References is $1.50 each except the following:

PUB40001 (Binder) $4.35

ea.

PUB41004 2.10

ea.

PUB41005 1.55

ea.

PUB41006 1.65

ea.

PUB41007 3.05

ea.

PUB41008 1.75

ea.

PUB41009 1.65

ea.

PUB41204 1.65

ea.

PUB41212 1.60

ea.

PUB41213 1.95

ea.

PUB41403 2.10

ea.

PUB41405 1.70

ea.

PUB41702 1.95

ea.

PUB41704 1.70

ea.

PUB41705 1.75

ea.

PUB41706 1.70

ea.

PUB41707 1.65

ea.

PUB41708 1.80

ea.

PUB41709 1.65

ea.

PUB41712 1.80

ea.

PUB42103 1.70

ea.

PUB42201 1.70

ea.

PUB42210 1.80

ea.

PUB43101 2.80

ea.

PUB43201 2.05

ea.

PUB43301 1.70

ea.

PUB43401 1.90

ea.

PUB44101 3.90

ea.

There is no charge for addenda. Prices subject to change without notice. The price of a complete set or a

PUB

series (i.e.,

PUB

41000) is determined by the prices of individual references. Prices do not include

taxes or premium mailing charges.

ADMINISTRATION

*PUB40000 Technical Reference

Catalog-

December 197 5

PUB40001 Technical Reference Binder

DATA

COMMUNICATIONS

Lists

all

current

Bell

System

Technical

References

and

provides ordering information,

catalog numbers

and

synopsis.

A general purpose four-ring binder suitable for all

categories of Bell System Technical References.

This binder will hold approximately 15 individual

Technical References.

PUB41000 Complete Set of Data Communications Technical References

Facilities

for

Data

Communications

PUB41001

PUB41002

PUB41003

PUB41004

* Revised

30-Baud Private Line Channels

Interface

Specification

December 1 967

45- 55- & 75-Baud Private Line

Channels Interface

Specification -

December 1 967

1 50-Baud Private Line Channels

Interface

Specification

Revised September 1 97 5

Data Communications Using

Voiceband Private Line

Channels

-October

1 973

Describes a private line channel capable of

transmitting two-state ("mark-space," "binary")

signals at rates

to 30-baud for metering,

supervisory control

and

miscellaneous signaling

purposes. Metal lie continuity, end-to-end, is not a

requirement

this channel

and

will generally not

available.

The

interface signal is two-state

direct current.

Describes three private line channels capable of

transmitting two-state ("mark-space," "binary")

signals

to their respective rated speeds for

teletypewriter, data, metering, supervisory con-

trol

and miscellaneous signaling purposes.

Metallic continuity, end-to-end, is not a require-

ment

of this channel

and

generally not be

available.

The

interface signal is two-state direct

current.

Defines the interface for the 1 50 Baud Private

Line Channel as presented to Customer-Provided

Terminals.

Describes voiceband channel arrangements for

private line data transmission. Provides analog

impairment limits supported

channels,

and

digital performance supported with Bell System

service

offerings; interface requirements for

analog channels; engineering considerations for

two-point

and

multipoint channel usage;

and

in-

fo rm

ion

maintenance

and

channel

availability.

PUB41005

PUB41006

PUB41007

PUB41008

PUB41009

PUB41011

PUB41012

PUB41013

Data Communications Using

The

Switched Telecommunications

Network-Revised

May

1971

Attenuation

and

Envelope Delay

Characteristics

from

the

1969-70

Switched Telecommunications

Network Connection Survey -

June

1973

1 969 -70 Switched

Telecommunications Network

Connection Survey (Reprints

of Bell System Technical

Journal Articles) -

April 1971

Analog Parameters

Affecting

Voiceband Data Transmission -

Describes the structure

and

operation of

the

DOD

network; presents switching

and

transmission

performance data

the

network

and

discusses

topics related to data communications

the

DOD

network.

Provides detailed information

attenuation

and

envelope delay characteristics

toll connec-

tions

from

the

1969-70 Switched Telecom-

munications Network Connection Survey.

Describes analog transmission parameter perfor-

mance, low-speed data transmission perfor-

mance,

and

high-speed voiceband data transmis-

sion performance of the Switched Telecom-

munications Network. This is a series of three

Bell System Technical Journal Articles which

summarize

Bell

Telephone

Laboratories'

1969-70 Connection Survey.

A tutorial describing analog parameter which

may

effect data transmission over voiceband chan-

Description

Parameters -nels.

July 1974

Transmission Parameters

Affecting Data Transmission -

Measuring

Techniques-

Revised

May

1975

Transmission Specifications for

Voice Grade Private Line

Protective Relaying Channels -

May

1973

1 A Data Station, Multichannel

Arrangement Used

Provision

of Two-Point Channelizing

Service

-June

1973

Transmission Specifications for

Low Speed Signaling System

Channels-July

1975

This Technical Reference

br~efly

defines

the

parameters affecting data transmission described

the

companion

Technical

Reference

(PUB41008)

and

describes the techniques used

by the Bel I System to measure these parameters.

addition, physical

and

environmental require-

ments of test equipment used by the Bell System

are provided.

This Technical Reference provides information

a voice grade private line channel specifically

designed for power industry protective relaying

applications.

The

1 A Data Station, Multichannel Arrangement is

a frequency division multiplexer capable of deriv-

ing

75and/or150

baud

channels from a 3002 pri-

vate line voiceband channel. It is arranged for

mounting

the

customer's premises

and

pro-

vides test capability for trouble sectionalization.

Describes a private line channel capable of

unidirectional transfer of customer generated

signals generally characterized

"McCulloh"

systems. Metallic continuity is not a requirement

of this channel.

PUB41021

PUB41022

Digital Data System -Channel

Interface Specifications -

Preliminary-March

1973

Multistation

DAT

APHONE®Dig

ital

Service

-Preliminary

September 1 97 4

Describes the Digital Data System

(DDS)

and

the

interface between the channel termination equip-

ment of the

DDS,

contained

a Channel Service

Unit

(CSU)

and

the customer's data terminal

equipment. A

CSU

is used when the customer's

equipment performs the following functions: cod-

ing

and

decoding, timing recovery, synchronous

sampling, formatting,

and

generation

and

recogni-

tion of control signals. Also see

PUB41

450.

Describes the Multistation DATAPHONE®Digital

Service which utilizes the Digital Data System

(DDS)

provide

a full-duplex transmission

capability between a control station

and

two or

more remote stations.

Each

station

may

have the

service terminated

either a

DDS

Channel

S.er-

vice Unit

(CSU)

or a Data Service Unit

(DSU),

described

PUB's 41021

and

41450, respec-

tively. Data can

transmitted at the synchronous

data rates of 2.4, 4.8, 9.6, or 56 kb/s.

Data

Sets,

Data

Auxiliary

Sets

and

Data

Service

Units

PUB41101

PUB41102

Data

Set

03A

Interface

Specification

-February

1967

Data Set 1 03A3

Data Set 1 03E

Data Set 1 03G

Data Set 103H

Interface Specification -

October 1973

® Registered Service Mark of AT&T Co.

Data Set 103A provides full-duplex low-speed

serial data transmission at rates

300

bps.

The

103A is used

conjunction with Data Auxili-

ary Set 80481

and

may

be arranged for automatic

origination, automatic answering

and

alternate

voice. This data set is used for

DATAPHONE

ser-

vice

and

TWX-CE applications.

Data Sets 1 03A3,

and

H provide

ful

I-duplex

low-speed serial data transmission at rates

300 bps. The 1 03E is a basic data set without

power supply

and

attendant controls

and

designed for multiple set installations.

The

1 03A3

set consists of a 103E

a single unit housing

and

operates with a standard key telephone set.

The

103G is similar to the 103E but has

integrated

housing

and

provides a card dialer.

The

103H is

also similar to the 103E but is designed for

mounting

a data terminal.

The

103G

and

H are

now rated Manufacture Discontinued. These data

sets are used for

DATAPHONE

service.

PUB41103

PUB41104

PUB41105

PUB41201

PUB41202

PUB41203

PUB41204

Data

Set

03F

Interface

Specification -May 1964

Data

Set

Interface

Specification

-August

1 973

Type Data Station -

Interface

Specification-

October 1971

Data Sets

201

A&B

August

1969

Data

Sets

202C&D

Interface

Specifications -

May

1964

Data Set 202E Series -

Revised September 1971

Data Set 203-Type -

Revised Apri I 1 97 4

Data Set 1 03F provides

ful

I-duplex low-speed

serial data transmission at rates

to 300 bps. It

is intended for use

private line channels

and

does not include a provision for voice transmis-

sion.

Data Set 113A is

originate only, full-duplex

low-speed serial data set for use at rates

300

bps. This is a I

ine

powered data set designed

for

DATAPHONE

service applications.

Description:

The

113-type Data Station provides

for

low-speed, serial, FSK, full-duplex data

transmission over

the

switched telecommunica-

tions network. It is intended for use

multiple

data set, answer-only installations such

those

associated with a time-shared computer.

The

Data Station consists of Data Sets 1138,

ap-

propriate cabinet

available sizes)

and

Data

Auxiliary Set 804T.

The

Data Set 201-type transmits serial binary

data over voice bandwidth facilities using

PSK

modulation. Operation is synchronous full-duplex

half-duplex

and

may

be at 2000 bps for

DATAPHONE

service over the switched telecom-

munications network or

2400 bps over condi-

tioned private line channels.

The Data Sets 202C&D provide a medium speed,

binary, serial data transmission system. They

operate at rates

to 1 200 bps for

DAT

APHONE

service

and

to 1800 bps

conditioned pri-

vate I ine channels.

The Data Set 202E series is a modularized family

data set transmitters designed primarily to be

used

input stations

data collection systems.

This data set

may

used

either the switched

telecommunications network or

private line

channels

and

operates at speeds compatible with

Data Sets 202C&D.

The Data Set 203 family is designed to provide

synchronous transmission

and

reception

high-

speed digital data over the switched telecom-

munications network or conditioned private line

data channels. These sets are capable of operat-

ing at bit rates between 1800

and

1 0,800 bps

and

various options such

separate transmitter

and

receiver, secondary channel

and

alternate voice

are available.

PU841208

PU841209

PU841210

PU841211

PU841212

PU841213

Data

Set

202R

Interface

Specification-June

1971

Data

Set

208A

Interface

Specification -November 1 973

Data

Set

201

Interface

Specification

-April

1973

Data

Set

2088

Interface

Specification

-August

1 973

Data Sets 202S

and

202T -

Interface Specification -

August 1974

Data

Set

209A

Interface

Specification-Preliminary-

May

1974

The

Data Set 202R is a

manual

only,

minimum

feature data set. It

may

used

either the

telecommunications network or

private line

channels

and

operates at speeds compatible with

Data

Sets 202C

and

The

Data

Set 208A provides synchronous, binary

4800 bps service over basic (unconditioned)

30E>2-type

four-wire channels. Features include

automatic adaptive equalization, 50 millisecond

turnaround time, status

lamps

and

loop-around

test capabilities. These features

make

the set

especially well suited for multipoint polling ap-

plications

well

point-to-point systems.

The

Data

Set

201

-type transmits serial binary

data over voice bandwidth facilities using

PSK

modulation. Operation is synchronous

ful

I-duplex

or half-duplex

and

may

2000 bps

(201

at 2400 bps

(201

8 or

201

over the Switched

Telecommunications Network

private line

channels.

The

Data Set 2088 provides synchronous, binary

4800 bps service

the switched telecom-

munications network. Features include automatic

adaptive equalization, 50 millisecond turnaround

time, built-in line control, status

lamps,

and

exten-

sive testing capabilities which provide powerful

system trouble isolating tools. These features

make

the set especially well suited for switched

network systems requiring reliable high thruput

service.

Data Sets 202S

and

202T, members of the new

data set family, provide 1200 bps asynchronous

service

the Switched Network

and

1800 bps

asynchronous

service

on the

private

I ine

facilities, respectively. These data sets are line

compatible with all 202-Type

Data

Sets;

and

pro-

vide

optional 5 bps reverse channel, indicator

tamps

that visually display

the

status of

the

set,

and

test features which provide

the

customer,

well

the

Telephone Company, with fault isolat-

ing

capabilities.

The Data Set 209A is a synchronous, binary serial

9600 bps data set for

use

a voiceband

3002

data channel equipped with Type D-1, High Per-

formance

Data

Conditioning) 4-wire private line.

The

data set features multiplexing options, rapid

start-up times, extensive customer testing

capabilities, modern design technology,

and

attractive appearance.

PUB41301

Data

Set

301

Interface

Specification -March 1967

PUB41302 Wideband Data Stations

303-

Type Interface

Specification-

Revised December 1974

PUB41303

The

Display Data Set F-58167

Used to Provide Computer

Access Service for

PICTUREPHONE

Stations -

Preliminary-August

1970

PUB41304 Wideband Data Set 306-Type

Interface Specification -

July 1971

PUB41

403

Data

Set

4 0 1 J I n t

face

Specification

-September

1965

PUB41

405 Data Sets 402C -402D

Interface Specification -

November 1 964

*PUB41

408 Data Set 407 Interface

Specification-Preliminary-

Revised June 1975

®Registered Service Mark of AT&T Co.

The Data Set

301

B provides for the transmission

of binary serial synchronous data at 40,800 bps.

This data set requires a group bandwidth channel

and

is used

private line applications only.

Data Stations 303 comprise a family of wideband

data stations for use

the transmission of serial

binary synchronous or nonsynchronous data.

Speeds available range from 19.2 to 460.8 kbps

and

operation

may

be over either analog or digital

facilities.

The Display Data Set F-58167 provides

inter-

face between a customer-provided computer and

the

PICTUREPHONE

switching network. This data

set permits the

PICTUREPHONE

station to in-

teract with the computer and generates character

display signals which are displayed

the

PIC-

TUREPHONE

screen.

Data Set 306A provides for the transmission of

serial binary synchronous data at the transfer rate

of 1.344 Mb/s over

carrier facilities.

Data Set

401

J is a multi-frequency data receiver

intended for use

DATAPHONE

service. It can

receive either 3-out-of-14

2-out-of-8 parallel

signals at a speed of

to 20 characters/second.

Data Sets 402C (transmitter)

and

402D (receiver)

compose a medium speed, binary, parallel data

transmission system for

DATAPHONE

Service

private line service.

The

system will transmit any

number of data levels

to 8 at any speed

75 characters per second.

Data Set 407 is a multi-frequency data receiver

designed for multiline installations.

The

data set

receives at a rate of

to ten (10) characters per

second over the switched telephone network

over basic (unconditioned) private lines from

TOUCH-TONE®telephone sets, TOUCH-TONE

pads, Bell System

401

-type data set transmitter

the "numeric mode" (two out of eight signals),

or equivalent signal sources.

*Revised -Supersedes "Data Set 407 A Interface Specification -November

1973"

PU841450

and

PU841450A

PU841451

and

PU841451A

PU841601

PU841602

Digital Data System

-Data

Service Unit Interface

Specifications-Preliminary-

March 1973

Addendum -November 1 97 4

1.544 M8/S Service Channel

Interface Specifications -

Pre

I iminary February 1 97 4

Addendum-January

1975

Data

Auxiliary

Set

801

(Automatic Calling Unit) Interface

Specification-March

1964

Data

Auxiliary

Set

801

(Automatic Calling Unit) Interface

Specification -September 1 965

Data

Communications

Systems

and

Terminals

PU841701

PU841702

8383 Teletypewriter Selective

Cal

I ing System -

September 1967

85A 1

and

85A2 Data Selective

Calling Service Stations -

October 1971

A data Service Unit

(DSU)

is used

data ser-

vices provided via

the

Digital Data System

(DDS).

It provides plug-for-plug interchangeability with

existing

EIA

Type D or E interfaces at syn-

chronous speeds of 2400, 4800,

and

9600 bits

per second.

56,000 bits per second the

DSU

provides the standard CCITT balanced

inter-

face. Also see PU841021.

A service channel providing point-to-point, full

duplex transmission of serial bipolar synchronous

pulses at a transfer rate of 1.544 Mb/s with con-

straints

signal format.

The

Data Auxiliary Set

801

A is a

dial pulse

Automatic Calling Unit

(ACU)

which permits a

business machine

place

calls

over

the

switched telecommunications network.

opera-

tion, a telephone number stored

the business

machine is passed to

the

ACU

which sets

the

call

and

transfers the circuit to the associated

data set for the automatic transmission of data.

The

Data

Auxi

I iary Set

801

C is a TOUCH-TONE

dialing Automatic Calling Unit

(ACU)

which per-

mits a buswness machine to place calls over the

switched telecommunications network.

opera-

tion, a telephone number stored

the business

machine is passed to

the

ACU

which sets

the

call

and

transfers the circuit to the associated

data set for the automatic transmission of data.

The

8383

Teletypewriter

Selective

Calling

System is five-level half-duplex private line

system using Model 28 equipment at speeds

to 1

words per minute.

The

traffic flow is

governed

control

station

which

automatically polls the other stations to start

their tape readers.

The

85A-type Data Selective Calling Service

Stations are used

providing eight-level, half-

duplex, private line selective calling systems.

The

85A 1 station pro

des for 1

wpm

operation

using Model 33 or 35 equipment while

the

85A2

station provides for 150

wpm

operation using

Model 37 equipment.

The

traffic flow is ad-

ministered by a customer-provided computer

(line control station) which sequentially polls the

station transmitter

and

selects the designated

receivers.

PU841703

PU841704

PU841705

PU841706

PU841707

PU841708

PU841709

86A 1 and 86A2 Data Selective

Calling Service Stations

June

1969

868-Types Data Selective Call-

ing

System Stations -

November 1

968

Data Line Concentrator System

(DLCS) Arrangements -

May 1971

Model

Teletypewriter Stations

for DATAPHONE Service -

September 1

968

DATASPEED®

Type-4 System -

September 1

969

Type-5

DAT ASPEED System -

June

1970

Receive-Only

DATASPEED

Printer

Station

Agreements

System Interface Specification -

January 1

970

®Registered Service Mark

AT&T Co.

The 86A1 and 86A2 Data Selective Calling Ser-

vice Stations are used in providing eight-level

half-duplex selective calling systems. The 86A1

station provides for

100

wpm operation using

Model

equipment while the 86A2 station

provides for 150 wpm operation using Model

equipment. Control of these stations is from a

customer-provided computer (line control sta-

tions). 86A-type stations are used in applications

where the customer-provided computer controls

both half- and full-duplex circuits.

868-type

Data Selective Calling System Stations

are used

providing 8-level full-duplex selective

calling systems. The 8681 stations operate at

100

wpm using Model

and

equipment. The

8682

stations operate at 150 wpm using Model

equipment. Control

these stations is from a

customer-provided computer.

Data Line Concentrator System Arrangements

provide for the connection

a number

stations

to a smaller number of computer communications

ports. The service includes a data line concentra-

tor, private line transmission facilities and is used

with Model

Teletypewriters and also

customer-provided terminals.

Describes the operating

and

line characteristics

the M37 Teletypewriter Station operating

DATAPHONE

Service.

Included

list

features that are available

are planned to be

available.

The DATASPEED Type-4 Service is a paper tape

transmission system operating at either 1

050

wpm

200

wpm. This system provides error-

detection and correction by tape pull back and

re-transmission

error indication.

The DATASPEED

Type-5

system is a medium

speed paper tape transmission operating at 750

wpm. the system uses a separate sender and

receiver and can accommodate 5-, 6-, 7-,

level paper tape.

The receive-only

DATASPEED

Printer is a high

speed nonimpact terminal. It operates at either

1050

wpm

1 200 wpm using serial transmission

and

750

wpm using parallel transmission.

PUB41710

PUB41712

PUB41713

PUB41714

PUB41715

4200 Series Magnetic Tape

Terminal

-August

1970

DAT

ASPEED

Type-2

System -

December 1

970

Models 33, 35

and

37 Stations for

Point-to-Point Private Line

Service-August

1971

9131

Teletypewriter

Selective

Calling Station Arrangement -

January 1 97 4

DATASPEED

40 Stations for

DATAPHONE

Service -

Preliminary-December

1973

Data

Interconnection

The

4200 Series Magnetic Tape Set will send

from or receive data

and

record it

magnetic

tape

a 150,000-character capacity cartridge.

This system accommodates

eight-level code

and

operates at speeds from 1

wpm

to 2400

wpm.

The

DATASPEED

Type 2 system is a

medium

speed, serial data transmission system.

The

system consists of a Sending terminal, paper tape

punch,

and

a receiving terminal, paper tape

punch. Operating speed is 1

050

wpm

using a

202-type data set. Information presented con-

sists of on-line

signa1ing

and

terminal charac-

teristics.

Describes Point-to-Point Private Line Service

which Model 33, 35 or 37 Teletypewriter Stations

are connected to

one

or both points

a com-

munication link.

The

arrangements described are

composed of two interconnecting stations

and

their communications control capability.

The

9131 Teletypewriter Selective Calling Sta-

tion Arrangement is used

providing

eight-

level, half-duplex, private line selective calling

system. It provides for 1 00

wpm

operation using

Model 33 or 35 teletypewriters. It is a contention

type system

(i.e.,

not controlled by a master sta-

tion) intended primarily for handling intraline

traffic.

The

DATASPEED

40 is a

medium

speed data ter-

minal which provides advanced facilities for en-

tering, displaying, editing, printing, sending

and

receiving data.

DAT

APHONE

operation at 1 050

or 1 200 bits per second using 202-type data sets

is described.

PUB41800 Complete Set

Data Interconnection Technical References

PUB41801 Data Access Arrangement

CDT

for

Manual

Originating

and

Answering

Terminals-

Revised May 1 973

Data Access Arrangement

CDT

is used to con-

nect customer-provided terminal equipment to

the switched telecommunications network. It pro-

vides for

manual

origination

and

answering

calls

and

includes a standard telephone set

equipped with

exclusion key used to manually

transfer between the TALK

and

DAT

A modes.

PUB41

802 Data Couplers

CBS

and

CBT

for

Automatic Terminals -

Revised

May

1 97 4

PUB41803 Acoustic

and

Inductive Coupling

for Data

and

Voice Transmis-

sion -October 1972

# PUB41804 Switched Network

Transaction

Telephone

System -

Pre

I iminary -

June

1975

VOICE COMMUNICATIONS

Data Couplers

CBS

and

CBT

are used to connect

customer-provided terminal equipment to the

switched telecommunications network. They pro-

vide for automatic answering, terminating and/or

dial pulse originating of calls

and

include a

network control signaling unit

and

a data access

arrangement. Data Coupler

CBS

provides

EIA-RS

232C voltage type control leads. Data Coupler

CBT provides contact closure type control leads.

The

conditions under which customer-provided

data stations

may

generate tone signals for

the

purpose of addressing

the

switched telecom-

munications network are described.

Provides information of interest to the designer of

acoustically or inductively coupled data

and

voice transmission equipment. Information in-

cludes system design considerations, transmis-

sion speeds, transmission to other data sets,

power limitations,

and

a test instrument assembly.

The

Transaction Telephone System is a short-

message inquiry-response system, connecting

transaction telephone terminals to a customers

computer center via the switched telecom-

munications network. It provides a service

which inquiries are sent semi-automatically

TOUCH-TONE

signals,

and

responses

are

returned

either voice or visual

form.

PUB42000 Complete Set of Voice Communications Technical References

*Protective Connecting Arrangments -Manual, Terminal

usoc

PUB42101

QKT-

Revised June 1971

PUB42102

CDX-

Revised February 1973

#New

Technical Reference

Manual

connecting arrangement used for the con-

nection of customer-provided voice transmitting

and/or receiving equipment or communications

systems to a

PBX

or central office station line

through

Telephone

Company-provided

telephone set equipped with

exclusion key.

Manual

voice connecting arrangement used to

connect a customer-provided device, typically

patching devices, which enables the connection

incoming call to a Telephone Company pro-

vided

PBX

and

outgoing central office trunk

line from a Telephone Company-provided

PBX.

* PUB41803 listed under the

Data

Interconnection section provides information of interest to the

designer of acoustically or inductively coupled devices for Voice

well

Data Transmission.

PUB42103

PUB42104

PUB42105

PUB42106

PUB42107

CEBAX/CEBBX

Pre

I iminary -

Revised

June

1970

LOH

-Preliminary -

July 1970

LVH

-Preliminary

July 1970

CEBAV

-Preliminary -

August 1970

CEBAW-Preliminary-

August 1970

Voice Connecting Arrangement

CEBAX

permits a

customer to manually connect

and

disconnect

customer-provided equipment, typically multi-

line conferencing devices, to a specific line ter-

minated

a Telephone Company-provided key

set (control station). For use with customer-pro-

vided equipment with only

one

supervisory con-

tact. Furnished

a per line per control station

basis.

Voice Connecting Arrangement

CEBBX

permits a

customer to manually connect

and

disconnect

customer-provided equipment, typically multi-

line conferencing devices, to a specific line ter-

minated

a Telephone Company-provided key

set (control station). For use with customer-pr:o-

vided equipment with two supervisory contacts.

Furnished

a per line basis.

Voice connecting arrangment permitting the con-

nection of customer-provided background music

or other recorded material to central office lines

terminated

a Telephone Company-provided

switchboard.

Voice connecting arrangement permitting the

connection of customer-provided background

music or other recorded material to central office

PBX

lines, terminated

Telephone Company-

provided key telephone sets, while

the

line is

the hold

mode.

Voice connecting arrangement which permits a

customer to manually connect

and

disconnect

customer-provided equipment, typically

manual

announcement sets, which answers

incoming

call, to a specific line terminated

a Telephone

Company-provided key set (control station). For

use

with customer-provided equipment with only

one supervisory contact.

Voice connecting arrangement which permits the

customer to manually connect

and

automatically

disconnect

customer-provided

equipment,

typically intercom systems, to a specific line ter-

minated

a Telephone Company-provided key

set (associated station). For use with customer-

provided equipment with two supervisory con-

tacts.

PUB42108

FTP-Preliminary-

April 1974

*PUB42109

FTM

-Preliminary -

November 1 975

Voice Connecting Arrangement

F!P

provides a

means

connecting a customer-provided

source of music or recorded information to the

Music-On-Hold and/or Background-Music-Over-

Paging features of the Telephone Company-pro-

vided Com-Key®718

and

1434 Communications

Systems.

Protective Connecting Arrangement

FTM

pro-

vides a

means

connecting a customer-pro-

vided source of music or recorded information to

the Music-On-Hold feature of a Telephone Com-

pany-provided key telephone system.

Protective

Connecting

Arrangements

Automatic,

Terminal

# PUB42201 CAU/SU3/SU4/SUe -

Revised October 1975

PUB42202

PUB42203

and

PUB42203A

PUB42204

SU7QW-

Revised April 1975

RTT

-Preliminary -

January 1970

Addendum

-October

197 4

RDL/RDM-Preliminary-

Revised January 1 973

*New Technical Reference

®Registered Trademark of AT&T

Co.

Protective Connecting Arrangement

CAU

alarm coupler which provides one-way transmis-

sion for use with customer-provided alarm device

with dial pulse signaling.

SU3

is a tone signaling unit for use with Protec-

tiv,e

Connecting Arrangements

CAU

SUe

permits the operation of the alarm device to be

tested or verified from a remote location.

Protective Connecting Arrangement

SU4

is the

combination of Protective Connecting Arrange-

ments

CAU

and

SU3.

There is

assigned code

for the combination of Protective Connecting Ar-

rangements

sue

and

SU3.

Protective Connecting Arrangement

SUe

alarm

coupler

modified to provide

two-way

transmission, to permit detection

dial tone or

proper signal from a remote point.

See

SUeAQ.

Protective Connecting Arrangement SU7QW pro-

vides the

means

for automatically connecting

customer-provided dial pulse repertory dialers.

Connecting arrangement that generates a tone to

both parties under control of a customer-pro-

vided call duration timer.

Voice Connecting Arrangement

RDL

is a recorder

coupler arranged for one-way recording Voice

Connecting Arrangement

ROM

is a recorder

coupler

modified

provide

two-way

simultaneous transmission. See

RDMZR.

Revised-Supersedes 11 CAU/SU3/SUe -Preliminary -November

19e9"

PUB42205

PUB42206

and

PUB42206A

PUB42207

PUB42208

PUB42209

PUB42210

RCZ-

Revlsed July 1975

RC1

-Preliminary-

Revised June 1971

Addendum

-October

197 4

C2ACP

/C2AKS -

Revised February 1975

STC -Pre I iminary -

Revised February 1974

RDMZR/RDY-

Revised December 1973

SU6AQ/STS-Preliminary

June 1971

Recorder connector used to connect customer-

provided two-way recording equipment which

provides a distinctive

Connecting arrangement which provides the

means

for customer-provided equipment to cause

a·

short burst of 1400Hz tone to be sent to the

local part; used for call duration timing.

Protective Connecting Arrangement C2ACP is

automatic

arrangement

used

connect

customer-provided terminal equipment

WATS

access line, a central office station line, or

a PBX/Centrex extension line.

Protective Connecting Arrangement C2AKS is

·automatic

arrangement

used

connect

customer-provided terminal equipment

WATS

access line, a central office station line, or

a PBC/Centrex extension line which concurrently

terminates

a Telephone Company-provided

station.

Voice connecting arrangement that provides the

means

for automatically connecting customer-

provided transmitting

and

receiving speech ter-

minal equipment, e.g., telephone sets, utilizing a

three-wire interface.

Voice Connecting Arrangement

RDMZR

provides

the

means

for automatically connecting customer

provided receive-only speech terminal equip-

ment,

e.g., answering sets; it supersedes

and

replaces Voice Connecting Arrangement

ROM.

Voice Connecting Arrangement

ROY

provides all

of the features of Voice Connecting Arrangement

RDMZR

and,

addition, provides volume-limited

receive transmission.

Voice Connecting Arrangement

SU6AQ

provides

the

means

for

automatically

connecting

customer-provided transmitting

and

receiving

speech terminal equipment, e.g., alarm systems,

utilizing a multi-wire interface; it supersedes

and

replaces Voice Connecting Arrangement

SU6.

Voice Connecting Arrangement

STS

provides all

the features of Voice Connecting Arrangement

SU6AQ

and,

addition, permits the transmission

of customer-provided supervisory tone signals;

provides

alternative to Voice Connecting Ar-

rangement

SU3.

PUB42211

PUB42212

PUB42213

PUB42214

CEZ

-Preliminary -

November 1

971

STP

-Preliminary

May

1973

ADI

-Preliminary -

October 1 97 4

GTS

-Preliminary -

December 1 97 4

Voice connecting arrangement which permits

the

manual

connection

and

automatic disconnection

of customer-provided equipment (typically con-

ferencing devices) to a specific line

associ-

ated

Telephone

Company

provided

key

telephone set.

Voice Connecting Arrangement

STP

provides a

means

for automatically connecting customer-

provided transmitting

and

receiving speech ter-

minal

equipment, e.g., key telephone systems.

Connecting Arrangement

ADI

provides a

means

associate dial pulse dialers with single or multi-

line telephone sets.

Protective Connecting Arrangement

GTS

pro-

vides a means of connecting

automatic

answering device to a telephone line. The

customer-provided answering device connects

via a standard 4-prong telephone jack.

Protective

Connecting

Arrangements

-Manual,

System

PUB42301

PUB42302

PUB42303

PUB42304

PUB42305

(COB)

-Preliminary-

February 1969

1 A

(CDA)

~Preliminary

June

1969

(CON)

-Preliminary-

June

1969

CD1

-Preliminary-

July 1969

CD4

-Preliminary -

August 1969

Manual

voice connecting arrangement used to

connect a line

from

a customer-provided system,

which provides supervisory signals, to a central

office trunk line through a Telephone Company-

provided cord switchboard position.

Manual

voice connecting arrangement used to

connect a cord switchboard position

customer-provided system, which provides

supervisory signals, to

exchange trunk line.

Manual

voice connecting arrangement used to

connect a line

from

a customer-provided system,

which provides supervisory signals, to

ex-

change line through a Telephone Company-pro-

vided key station.

Manual

voice connecting arrangement used to

connect a cord switchboard position

customer-provided system, which does not pro-

vide supervisory signals, to

exchange trunk

line.

Manual

voice connecting arrangement used to

connect a line from a customer-provided system,

which does not provide supervisory signals to

exchange trunk line through a Telephone

Com,;,

pany-provided cord switchboard position.

PUB42306

PUB42307

CD5

-Preliminary

August 1969

COY

-Preliminary -

October 1 969

Manual

voice connecting arrangement used to

connect a line

from

a customer-provided system,

which does not provide supervisory signals, to

exchange line through a Telephone Company-

provided key telephone station.

Voice connecting arrangement used to termi-

nate

-without

exchange

connection-a

line

from

a customer-provided system

a Telephone

Company-provided key telephone station.

Protective

Connecting

Arrangements

Automatic,

System

PUB42401

PUB42402

CDH

and

CBF-

Revised March 1 97 4

CD7

/CDB/CD9

and

CBF

Revised March 1974

Automatic voice connecting arrangement used to

connect the attendant position

and

dial switching

equipment of a customer-provided system to

exchange trunk line arranged for two-way com-

bination rotary or

TOUCH-TONE

service.

Connecting Arrangement

CBF

is provided

addi-

tion to

CDH

when

Data Communications equip-

ment

is used behind the

PBX.

CBF

provides a

linear attenuator which limits the three-second

average power level transmitted to the central

office without distorting the signal.

The

maximum

allowable power level is determined at the time of

installation.

Voice Connecting Arrangement CD7 is

automatic arrangement used to connect the at-

tendant position of a customer-provided system

exchange trunk line arranged for one-way

outgoing rotary or

TOUCH-TONE

service.

Voice Connecting Arrangement

COB

automatic arrangement used to connect the dial

switching equipment of a customer-provided

system to

exchange trunk line arranged for

one-way outgoing rotary or

TOUCH-TONE

ser-

vice.

Voice Connecting Arrangement CD9 is

automatic arrangement used to connect the at-

tendant position of a customer-provided system

exchange trunk line arranged for two-way

rotary or

TOUCH-TONE

service.

Connecting Arrangement

CBF

is provided

addi-

tion to

CD7,

COB,

CD9,

when

Data Communica-

tions equipment is used behind

the

PBX.

CBF

pro-

vides a linear attenuator which limits the three-

second average power level transmitted to the

central office without distorting the signal.

The

maximum

allowable power level is determined

the time of installation.

PUB42403

and

PUB42403A

PUB42404

PUB42405

and

PUB42405A

PUB42406

and

PUB42406A

PUB42407

PUB42408

CET

-Preliminary-

October

1970

Addendum

-June

197

CD6 -Preliminary -

December 1

969

CED

-Preliminary -

April

1970

Addendum -June 197 4

C22 -Preliminary -

March 1971

Addendum

-October

1972

C24/C2H -Preliminary -

October 1 971

C27

/C2K

-Preliminary -

October 1 971

Automatic voice connecting arrangement used

connect a customer-provided system

ex-

change trunk line arranged for one-way service to

the operator position

a Telephone Company

long distance switchboard (the equivalent

toll terminal).

Automatic voice connecting arrangement used

connect

exchange trunk line arranged for one-

way incoming service to the attendant position

a customer-provided system.

Automatic voice connecting arrangement used

connect a customer-provided system

ex-

change trunk line, arranged for

two-way

service,

to the operator position

a Telephone Company

long distance switchboard (the equivalent

toll terminal).

Automatic voice connecting arrangement used

connect

exchange trunk line arranged for one-

way

direct

inward dialing

(DID)

service

the dial

switching equipment

a customer-provided

system.

Voice

Connecting

Arrangement

C24

automatic arrangement used for

two-way

service

which provides a four-wire voice transmission in-

terface for connecting customer-provided chan-

nel facilities

a Telephone Company

PBX.

and M type signaling interface is provided.

Voice

Connecting

Arrangement C2H

automatic arrangement used for

two-way

service

which provides a four-wire voice transmission in-

terface for connecting customer-provided chan-

nel facilities to Telephone Company Centrex ser-

vice.

E and M type signaling interface is pro-

vided.

Voice

Connecting

Arrangement

C27

automatic arrangement used for

two-way

service

which provides a

two-wire

voice transmission in-

terface for connecting customer-provided chan-

nel facilities

a Telephone Company

PBX.

and M type signaling interface is provided.

Voice

Connecting

Arrangement

C2K

automatic arrangement used for

two-way

service

which provides a

two-wire

voice transmission in-

terface for connecting customer-provided chan-

nel facilities

Telephone Company Centrex ser-

vice.

E and M type signaling interface is pro-

vided

Protective

Connecting

Arrangements

Private

Line

PUB42501

PUB42502

PUB42503

PUB42504

PUB42505

CDQ4W

-Preliminary-

August 1969

CDQ2W/CDQ2X -

Preliminary -

June 1971

C234W-Preliminary-

February

1971

C232W-Preliminary-

September 1

971

CDQ4X

-Preliminary -

October 1

971

Automatic voice connecting arrangement ar-

ranged for two-way service which provides a

four-wire

voice

transmission

interface

customer-provided dial switching equipment -

used with a Telephone Company-provided four-

wire

private

line

channel

equipped

with

Telephone Company-provided channel signaling

with a contact-type signaling interface.

Voice Connecting Arrangement

CDQ2W

is ar-

ranged for two-way service,

and

provides a two-

wire interface to customer-provided dial switch-

ing

equipment.

Used

with Telephone Company-

provided private line channel

and

Telephone

Company-provided channel signaling with a con-

tact-type signaling interface.

Voice Connecting Arrangement

CDQ2W

is ar-

ranged for two-way service,

and

provides a two-

wire interface to customer-provided dial switch-

ing

equipment.

Used

wlth Telephone Company-

provided private line

channel

and

Telephone

Company-provided channel signaling with

E-

and

M-type signaling interface.

Voice connecting arrangement for two-way ser-

vice, which provides a four-wire voice transmis-

sion interface to customer-provided dial switch-

ing

equipment.

Used

with a Telephone Company-

provided four-wire private line channel and

customer-provided channel signaling.

Voice connecting arrangement arranged for two-

way service, which provides a two-wire interface

to customer-provided dial switching or station

terminal equipment. Used with a Telephone Com-

pany-provided private line

channel

and

customer-

provided

channel

signaling (inband signaling

only).

Automatic voice connecting arrangement ar-

ranged for two-way service, which provides a

four-wire interface to customer-provided dial

switching equipment.

Used

with a Telephone

Company-provided four-wire private line channel

equipped with Telephone Company-provided

channel signaling with a E

and

M signaling inter-

face.

Protective

Connecting.

Arrangements

Miscellaneous

PUB42601

PUB42602

PUB42603

PUB42604

CEK

-Preliminary -

April 1970

CAK

-Preliminary

Revised

May

1 972

V /RCX/GC2 -Pre I iminary -

Revised June 1972

C25

-Preliminary

July 1971

PUB42605

CTD

Revised June 1975

Connecting arrangement used to

associate

customer-provided message registers where the

customer is

providing

the communications

system

and

the necessary equipment to associ-

ate the station with the message registers with a

central office trunk line.

Specification CAK describes a procedure used

& T Co. for the evaluation

customer-pro-

vided antique/decorator set housings. Replaces

B drawings previously furnished by the local

Telephone Companies.

Connecting Arrangement

Vis

used to connect

customer-provided elapsed time or

pen

equipment to

PBX

WATS lines,

PBX

central office

trunks or station lines. This arrangement provides

a closure that is maintained

when

the line is off-

hook

and

will not follow dial pulses.

Connecting Arrangement

ACX

is used to connect

customer-provided elapsed time or

pen

equipment to

PBX

WATS lines,

PBX

central office

trunks, or station I ines. This arrangement pro-

vides a closure that is maintained

when

the line is

off-hook

and

opens

each dial pulse.

Connecting Arrangement GC2 consists of

ring-up relay bridged across the line. Provides a

contact closure to customer-provided equipment

when ringing voltage is present. Used with ring

indicator devices.

Connecting arrangement used to connect the

customer-provided automatic number identifica-

tion equipment of a customer-provided com-

munications system to a Bell System central

office for automatic identified outward dial

(AIOD)

service.

Protective connecting arrangement used to con-

nect customer-provided call diversion equipment

to a Telephone Company

trunk terminated

a Telephone Company

PBX.

The

arrangement

provides a high impedance line status indication

of the supervisory

and

address signals

the

trunk

and

receives a contact closure to cause

diversion of

outgoing call from the

PBX

the

normal

manner.

PUB42606

PUB42607

PUB42608

PUB42609

HZM

-Preliminary -

November 1 97 2

VCP-NOTICE-

May

25,

1973

KTX -Preliminary -

October 1

973

CTH

-Preliminary-

December 1 973

Connecting Arrangement

HZM

is used to connect

customer-provided traffic measuring equipment

to station lines,

PBX

trunks,

and

some types

of tie lines. Permits the deduction of on-hook, off-

hook, dial pulse, TOUCH-TONE,

and

signaling

through a high resistance connection to the line.

Connecting Arrangement

VCP

provides

the

capability for a customer,

optional basis, to

supply the de power to voice connecting ar-

rangements associated with customer-provided

PBX's

and

certain other voice connecting ar-

rangements where specifically provided for

its

technical reference.

Connecting

arrangement

used

connect

customer-provided call diversion equipment to a

Telephone

Company

line

terminated

in a

Telephone Company Key Telephone System.

The

arrangment provides a high impedance line status

indication of the supervisory

and

address signals

the line

and

receives a constant closure to

divert

outgoing call. Restriction tone or

an-

nouncement is provided by the customer.

Protective connecting arrangement used to con-

nect customer-provided call diversion equipment

to a Telephone Company

C.O.

trunk terminated

a Telephone Company

PBX.

The

arrangement

provides a high impedance line status indication

of the supervisory

and

address signals

the

trunk

and

receives a contact closure to cause

diversion of the call. Restriction tone or

an-

nouncement is provided by the customer.

Protective

Connecting

Arrangements

PBX

Adjuncts

PUB42701

PUB42702

DCT -Pre I iminary -

June 1971

DCW -Pre I iminary -

July 1971

Voice connecting arrangement (formerly desig-

nated Recorded Telephone Dictation Trunk Cir-

cuit) which provides trunk level access, e.g.,dial

"7",

from a station

a Bell System

PBX

Centrex system to customer-provided dictation

equipment.

Voice connecting arrangement (formerly desig-

nated Interface Trunk Circuit) which provides a

two-part trunk level access,e.g.,dial

"7",

from a

station

a Bell System

PBX

or Centrex system

customer-provided

equipment capable

receiving dialed digits (serial or parallel coded)

for central purposes.

PUB42703

PUB42704

DCK/DCL-

Revised October 1974

TSPXY

/TSPZ1 -Preliminary -

March 1975

RADIO

AND

TRANSMISSION

ENGINEERING

Voice Connecting Arrangements

DCK

and

DCL

provide trunk level access,e.g.,dial

"7"

from a

station

a Bell System

PBX

or Centrex system

to customer-provided equipment (e.g., dictation

or radio paging) capable of receiving TOUCH-

TONE

digits directly or dial pulse digits over a

separate pair for control purposes.

Protective Connecting Arrangements

TSPXY

and

TSPZ1

provide a

means

connecting customer-

provided recording

and

control equipment to

PBX

trunks. With these arrangements,

outgoing

trunk can be split to allow dialing extra digits or

to pulse a number into the central office.

PUB43000 Complete Set

Radio

and

Transmission Engineering Technical References.

Private

Line

Facilities

PUB43101

Voice Grade Entrance Facilities

for Extending Customer-Provided

Communications

Channels -

Preliminary -

May

1969

PUB43201 Private Line Interconnection

Voice Applications -

Preliminary -

June

1 970

PUB43401

~Transmission

Specifications for

Mobile

Radio

Private Line Metallic Circuits -

Preliminary-December

1971

PUB43301

Domestic Public Land Mobile

Telephone

Service-Customer-

Prov

ded

Dial

Stations

Preliminary-March

1973

Describes the various entrance facility serving

arrangements, provides transmission charac-

teristics of entrance facilities, describes signal

power limitations

and

discusses the division of

responsibility for design, operation

and

mainte-

nance.

Describes the standard private line offerings for

voice applications which

may

be interconnected

at one or both ends with customer-provided

voice communications systems

terminal equip-

ment.

Also describes

minimum

protection criteria,

signaling arrangements

and

maintenance techni-

ques.

Describes the signal level criteria objectives for

private line metallic circuits (cable pairs without

signal battery or

amp

I ification devices). This

material is provided for those who use the

metallic continuity of local private line channels

implemented by wire pairs. It should be noted that

the Telephone Companies have no obligation to

provide private line channels

a metallic basis.

Provides

information

needed

interface

customer-provided mobile telephone dial sta-

tions with Telephone Company-provided mobile

telephone radio systems.

PUB43302

PUB43303

Intermodulation Interference

Radio Systems -

November 1 97 2

Domestic Public Land Mobile

and

Maritime Radio Service System

Interface

Criteria-

Preliminary - June 1 97 4

PICTUREPHONE SERVICE

With the explosive growth of radio systems,

problems of "overpopulation" are beginning to

misuse valuable radio spectrum.

One

of the prin-

cipal overpopulation problems encountered to-

day, yet one about which relatively little informa-

tion is available, is intermodulation interference.

This Technical Reference represents present

views of the problem

and

presents some possible

solutions.

This Technical Reference is a guide for desig-

ners, manufacturers,

and

operators of common

carrier radio systems which interface with the

Bell System telephone network.

The

document

describes the electrical information which must

pass between a Bell System Central Office

and

common carrier radio system

order to originate

and

terminate calls. This Technical Reference is

not

intended

provide

complete

design

specifications or parameters or to assure the

qua

I ity or performance of the common carrier

radio system.

PUB44000 Complete Set of

PICTUREPHONE

Service Technical References

PICTUREPHONE Interconnection

PUB44101

PVF

- Preliminary -

September 1

970

ATTESTATION PROGRAMS

PICTUREPHONE

connecting arrangement which

permits the connection of customer-provided

video/audio

terminal

equipment

PIC-

TUREPHONE

facilities using a Telephone Com-

pany-provided TOUCH-TONE telephone set.

PUB45000 Complete Set of Attestation Program Technical References

Headsets

PUB45001

and

PUB45001A

PUB45002

and

PUB45002A

4-Wire Headset Interface Ter-

minations

and

Interface

Specification 1

001

Preliminary-Revised

July 1973

Addendum -August 1 97 4

6-Wire Headset Interface Ter-

minations

and

Interface

Specification 1 002 -

Preliminary-October

1974

Addendum -January 1 97 5

Provides

the

procedural requirements

and

techni-

cal specifications (Interface Specification 1

001

)

for the attestation of certain customer-provided

4-wire headsets for use with headset jacks

(Headset Interface Terminations)

Bell System

attendant switchboards, attendant consoles,

and

telephone sets.

Provides the procedural requirements

and

techni-

cal specifications (Interface Specification 1002)

for the attestation of certain customer-provided

6-wire headsets for use with headset jacks

(Headset Interface Terminations)

Bell System

attendant switchboards, attendant consoles,

and

telephone sets.

Non-Powered

Conferencing

Devices

PUB45101 Interface Termination JTC

and

Interface Specification

2001

PUB45101 A

Preliminary-May

1973

Addendum

-October 1 97 3

CONFORMANCE

PROGRAMS

Provides the procedural requirements

and

techni-

cal specifications (Interface Specification

2001

)

for the attestation of certain non-powered con-

ferencing devices for use with Interface Termina-

tion JTC which is associated with

Bel

I System

key telephone system stations.

PUB46000 Complete Set

Conformance Program Technical References

PUB46001

and

PUB46001A

Conformance

Program

for

Answering Devices Incorporating

Authorized Protective Connect-

ing

Modules

-Preliminary-

Revised January 1975

Addendum

-October 1 97 5

Provides the procedural requirements

and

techni-

cal specifications (Interface Specification 3001 )

for the conforming of certain customer-provided

automatic answering devices for use with in-

dividual line exchange service or PBX/Centrex

station service.

326-299

40000_Bell_System_Technical_Reference_Catalog_Dec75 40000 Bell System Technical Reference Catalog Dec75

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