Bell System Plant System Reference

BELL SYSTEM PRACTICES
Plant Series
REFERENCE
220A HAND TELEPHONE SET
AC 1 AND AD 1 TELEPHONE BASES
1. GENERAL
1.01
This section provides identification, installation,
maintenance, and connection information for
the 220A hand telephone set, and the associated
AC1 and AD1 telephone bases. This information
was previously contained in Sections 502-320-100,
502-321 -1 00, and 502-321 -400 which are hereby
canceled.
2. IDENTIFICATION
2 .01
The 220A hand telephone set (Fig. 1) is a
component of the dial-in-handset TRIMLINE®
telephone set. The hand telephone set is a complete
telephone set except for the handset cord, ringer ,
and line switch which are housed in either a AD1
(Fig. 2) or a AC1 telephone base (Fig. 6).
2 .02
The AC1 telephone base is used for wall
mounted installations while the AD1 base is
used for desk type installations.
Ordering Guide
P-88EO*
COVER
lOA DIAL
FLOATING
FINGERSTOP
SECTION 502-303-101
Issue 1, February 1970
AT& TCo Standard
• •
• •
•
•
F E. • l Y ' I
t
t i
Wcsiu'n btuttic
2.03
Basic Telephone Sets
and
Components:
R E C A L L - - - - - - -
SWITCH
• Set, Telephone, Hand, 220A-*
• Base, Telephone, AC1-*
• Base, Telephone, AD1-*
• Cord, Handset, H4DB-*
* ADD COLOR
SUFFIX
.
.
.
. . .
. .
.
. .
. .
. .
.
. . .
• Cord, Handset, H5AA-* (required when
providing tip identifying ground)
Fig. 1-220A Hand Telephone Set
• Cord, Handset, H5AD-* (equipped with
message waiting lamp, 5 feet, 6 inches only)
Optional.
© . \merican Telephone and Telegraph Company, 1970
Printed in
l'.::l . .-\.
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