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Bell System Practices TOUCH-A-MATIC 2872A1M Identification, Installation, Connections, Operation, And Maintenance page 28

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SECTION
503-603-101
$ TABLE C (Contd)(I
CONNECTIONS
- 2872A1M
OR 2872A2M
TELEPHONE
SET WITH
ONE-TOUCH
CALLING
USING 3B (MD) SPEAKERPHONE
..............................
-
_
CONNECT
LEAD
TEL SET
FROM
TO
APPARATUS
(NOTE 1)
.....
149B ADPT
CONT UNIT
t
_NOTE
2_
_OlO_
CORD)
......
DESJG
i COLOR
FROM
TERM.
55A
55B
TERM.
II
I
II
m
_
[
Ill
I
II
II
I
I
I
I
I
I
1
I
II
II
I
95B-Type
AC1
_
3B §
Pwr Unit
I
I
_
.....
AC2
i
4B §
I
.....
2012B
(MD)
AC1
_'
27
27
or
'
!
........
2012D
Trnsf
AC2
!
36
36
..................
Note
1
Plug telephone
set mounting
cord into 149B adapter.
Note
2. When 55A control
unit is used, it must be the type modified
for TOUCH-TONE,
and
strap
terminals
20 and 21 (55A)
or 4 and 5 (55B).
* Insulated
and stored.
t
Terminal
on network.
To reduce loudspeaker
volume,
move SP2 lead to terminal
24 (55A)
or 30 (55B).
§ Insulate
and store
(BL-V) and (V-BL) leads in connector
cable.
Page 28

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