Title
Electronic switching systems no.1: arranged with 2-wire featuresCatalog Number
102774947Type
DocumentDescription
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
1971Publisher
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 |