AT&T Bell System G12A Identification, Connections And Maintenance

BELL SYSTEM PRACTICES
AT & TCo Standard
SECTION 501-21 0-103
Issue 7,
July 1979
G 12A, G 1 SA, AND G 1 SY HANDSETS
IDENTIFICATION, CONNECTIONS, AND MAINTENANCE
1. GENERAL
1.01
The 'G 12A (A&M only) (Fig. 1 and 2) or
G15A (Fig. 3, 4, and 5) handsets are for
general use with modular telephone sets. The
G 15Y handset is intended solely for use with
specially engineered systems-not for general
telephone use.
1.02
This section is reissued to:
• Add G 15Y handset, Fig. 8
• Revise Fig. 10
• Add Table A
2. IDENTIFICATION
A. Purpose
2.01
To provide a handset that will accept a
plug-in type handset cord.
Note: The G12A handset may be used with
H5AD handset cord (modular telephone sets)
or with H5AE handset cord (nonmodular sets)
to provide message waiting service for stations
not equipped with standard apparatus to provide
the service. The plug grommet of these
handset cords contain a neon glow lamp enclosed
in a clear lucite housing.
B. Ordering Guide
2.03
Basic Handset:
• Set, Hand, G15A-* (H4DU-* handset cord
must be ordered separately)
• Set, Hand, G15Y-* (H4DU-* handset cord
must be ordered separately)
Fig. 1-G12A (A&M Only) Handset with Handset
Cord Connected
2.03
The G12A-59, -61, and -64 handsets are rated
MD. The G12A-03, -50, -51,-53, -56, -58,
-60, and -62 handsets are rated A&M Only.
NOTICE
Not for use or disclosure outside the
Bell System except under written agreement
Printed in U.S.A.
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