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Bell System Practices AT&T Plant Series Identification, Installation, Connections, And Maintenance page 5

Telephone set components for installation in customer-owned housings

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(b) The line switch and ne
.~r!. ,we riv~. (1 to
the
chassis
assembly
and
~t~ould not
~'
removed.
If maintenance
is required,
rel)l~,
chassis assembly.
(c) Maintenance
of the dials is the same as for
6-type
rotary
dials.
Refer
to
Section
501-162-100.
(d) Refer to Section 501-259-101 for maintenance
of P 1A ringer
and Section 512-620-200 for
optional speakerphone
components.
(e
Refer
to connection
locating and clearing
figures
as an aid in
trouble.
–i
1SS 2, SECTION
501-410-101
TABLE B
1Al
OR
1A2
KTS AND
3-TYPE
SPEAKERPHONE
CONVERSION
(SEE NOTE)
CONNECT
TO
NET. TERM.
REMOVE
MIRE
OR
LEAD
COLOR
FROM NET,
SPEAKER.
TERM.
IA1 OR
PHONE
1A2 KTS
WITH
IA I OR
1A2 KTS
Line
(BR)
c
G
G
Switch'b
(w)
F
c
c
(s)
A
L2
-i
Ringer
(R)
K
A
A
(BK)
G
F
F
MIW Cord or
.
Equiv.
K
L1
Note:
For
lA1
or 1A2 KTS
only,
use D4BJ
mtg. cord.
For lA1 or 1A2 KTS with speaker-
phone use D1OR mtg. cord, connect
as shown in
Fig. 5.
* The telephone
set may be dialed in the on-hook
condition
with speakerphone
option,
t Use D-161488
connector
to connect
(S)
line
switch
lead to LK lead of transmitter.
Page
5

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This manual is also suitable for:

At&t f-56659At&t f-56660