AT&T Bell System 698A Manual

BELL SYSTEM PRACTICES
AT & TCo Standard
SECTION 502-201-1 05
Issue 4, October 1977
SUBSCRIBER SET-698A
(CODE-COM
SET)
1. GENERAL
1.01
This section contains identification,
installation/test, connections, and maintenance
information for the 698A subscriber (CODE-COM)
set (Fig. 1). This set provides a means of
communicating over telephone lines for persons who
are handicapped through loss of hearing, speech,
or sight.
MODULATED
LIGHT
Fig. 1-698A Subscriber Set
1.02
This section is reissued to:
• Show set hard-wired, (Fig. 2)
• Show set wired for use with 500SM or
2500SM modular telephone sets, Fig. 3 and
4, respectively.
• Show set wired with telephone set, with
and without KS-2061411 or 12 relay switch,
Fig. 5 and 6, respectively.
Since this reissue covers a general revision, arrows
ordinarily used to indicate changes have been
omitted.
2. IDENTIFICATION
Ordering Guide
• Set, Subscriber-698A-50 (available in ivory
[-50] only)
Note: Subscriber Instruction Booklet SIB-2463
shipped with the subscriber set should be left
with subscriber.
2.01
Associated Apparatus (ordered separately):
Hard-Wired Installation
• Transformer, 2012B or D (15-18 volt ac)
• KS-20614 Relay Switch (if required)
• Set, Telephone (use standard set equipped
with 425-, 4010-, or 4228-type network).
Modular Installation Without KS-20614 Relay Switch
• Set, Telephone (500SM or 2500SM)
• Transformer, 2012B or D (15-18 volt ac)
• Adapter, 248A
• Adapter, 267 A
• Block, Connecting, 625-type
• Cord, Mounting, D4BU-29 (appropriate
length), two required.
Modular Installation With KS-20614 Relay Switch
• Set, Telephone (500SM or 2500SM)
• Transformer, 2012B or D (15-18 volt ac)
• Adapter, 267 A
NOTICE
Not for use or disclosure outside the
Bell System except under written agreement
Printed in U.S.A.
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