Artifact Details

Title

Electronic switching systems no.1: arranged with 2-wire features

Document Titles

Carrier group alarm

Document Titles

Centrex console demand exercises

Document Titles

Centrex maintenance supervisory programs

Document Titles

Data link diagnostic programs

Document Titles

Dial tone speed test program

Document Titles

Master control center programs

Document Titles

Plugging up programs

Document Titles

Ringing and tone plant maintenance programs

Document Titles

Station ringer and T-T test programs

Catalog Number

102774947

Type

Text

Date

1971

Publisher

Bell Telephone Laboratories, Inc.

Identifying Numbers

Document number PR-1A050-14 Ringing and tone plant maintenance programs
Document number PR-1A055-14 Carrier group alarm
Document number PR-1A056-14 Data link diagnostic programs
Document number PR-1A057-14 Centrex maintenance supervisory programs
Document number PR-1A058-14 Centrex console demand exercises
Document number PR-1A070-14 Master control center programs
Document number PR-1A071-14 Station ringer and T-T test programs
Document number PR-1A072-11 Plugging up programs
Document number PR-1A073-14 Dial tone speed test program

Description

Items in this folder were originally bound. This folder contains multiple program listings. All listings are labeled "AT&TCo SPCS."

Category

Program Listing

Collection Title

Al Kossow collection

Credit

Gift of Al Kossow

Lot Number

X6512.2012