AT&T Bell System 5A Installation And Maintenance

BELL SYSTEM PRACTICJ;S
Station Operations Manual
Minor Station Systems
1.00
INTRODUCTION
5A AND SB KEY EQUIPMENTS
INSTALLATION AND MAINTENANCE
2.00
GENERAL
SECTION C70.133
Issue 2,
July,
1962
AT&TCo Standard
1.01
This section covers the installation and
maintenance information for 5A and 5B
key equipments. The reasons for reissue are to:
2.01
The 5A key equipment provides two-way
• Add information on 106- and 107-type loud-
speaker sets.
telephone service between a central office
or PBX and a subscriber station, and loudspeaker
service on a one-way telephone conversation to
this subscriber station.
2.02
The 5B key equipment provides two-way
• Add information on 6017 AM and AN keys .
• Remove information on 534BP subscriber
set.
telephone service between a central office
or PBX and a subscriber station, and loudspeaker
service on either a one-way or two-way telephone
conversation to this subscriber station.
3.00 INSTALLATION
• Remove information on 6017K and L keys.
1.02
Due to extensive changes marginal arrows
have been omitted.
3.01
Refer to Fig. 1 for typical installation of
5A or 5B key equipment.
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LOUDSPl!AICE R,
106 TYPI
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Fig. 1 - SA or 58 Key Equipment, Installation
©
American Telephone and Telegraph Company, 1962
Printed in U.S. A.
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