Switch - AT&T BELL SYSTEM Touch-A-Matic 870A1 Identification, Installation, Connections, Operation, And Maintenance

1SS 5, SECTION 501-164-201
FIG. D
i
FIG.
B
FIG. C
LINE SENSlffi RELAY PWB
841382880
LT (BK4L)
al
Voo
(M-G)
02
R1 (R-BL)
05
T1
(8 L-BK)
.
L I
FIG. E
ONE-TCIJCH CALLING SWITCH
(P/O D-1 80493 )
FIG
8
1 I
FIG. F
DIOU-87
ASSOCIATED
MOUNTING CORD TELEPHONE SET
T1
(w-o)
!
o TIP
RI
(o-w)
a RING
LK (G-W) ~
fa
LT
(w-13L)
1
at
M2 (w-BR)
I
@*
P3 (s-w)
*
P4 (w-s) *
M2SL-87 95B1
POWER CORO
POWER UN IT
I 1
DP -
ON -
*
FIG,
B
01 AL T@AE DETECTfXl
(P/O 0-1 B0495 )
INPUT
(G-R)
01
INPUT (G-R)
02
SPR (Y-EL)
05
DTT (BL-Y)
04
DT (O-Y)
05
OR
(Y-o)
06
PB (0-BK)
07
cm (BK-0)
08
PL (O-R)
09
VOD (R-O)
010
SPO (G-Y)
011
LK (Y-G)
012
FIG. G
8EA -119 OIAL
(BL)
(9L)
(Y)
(Y)
(w)
(w)
FIG. H
FIG,
B
RECORD DISABLE/O IAL !NTERMIX 5Wl TCh (D-1 LI0818)
m@=l"G'
OIAL PULSE
OFF NORMAL
INSULATE ANO STORE uNLESS SPEAKERPHONE IS PROV 10EO
SPARE TERMINAL OR 0-161488 CONNECTOR
APPROPRIATE TERMINAL TO PROV 10E MUTING OF RECEIVER
INSULATE ANO STORE UNLESS ONE TOUCH CALL IN' IS PROVIDED
Fig. 9—$870A1 Dial, Connections (Sheet 2 of 2)4