Artifact Details

Title

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

Catalog Number

102774947

Type

Document

Description

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

Includes:
Ringing and tone plant maintenance programs
Carrier group alarm
Data link diagnostic programs
Centrex maintenance supervisory programs
Centrex console demand exercises
Master control center programs
Station ringer and T-T test programs
Plugging up programs
Dial tone speed test program

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

Category

Program Listing

Collection Title

Al Kossow collection

Credit

Gift of Al Kossow

Lot Number

X6512.2012