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Bell System Practices TOUCH-A-MATIC 2872A1M Identification, Installation, Connections, Operation, And Maintenance page 47

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ISS 5, SECTION
503-603-101
(NOTE 2)
= >(_
.
TIP
(NOTE 1)
(G)
PSB-4
PSB-8
PSB-13
I
.
F-N_O_
--
--
RR
!
I
I
I
I
POLARITY
i
I
GUARD
I
_.5MFt
I
_
®l
533Kt
I
I
i
yi
.
.L1
__
PSB-S
RING
PSB-5
(_
(NOTE 1)
(NOTE 3)
(_
®l
* INSULATED AND STORED
t DIODE AND CAPACITOR ORDEREDAND INSTALLED SEPARATELY
(_WITHOUT
RESTRICTED DIALING (FACTORY WIRED)
(_WITH
RESTRICTED DIALING
NOTES:
I. REVERSE POLARITY ON TIP AND RING LEADS
ON ALL LINES WITH RESTRICTED DIALING
2. FOR 2872AIM SET - (Y)
FOR 2872A2M SET - (BL)
\
3. FOR 2872AIM SET - (BL)
FOR 2872A2M SET - (Y)
Fig. 14--1_2872A1M
(MD)
or 2872A2M
Telephone
Set, Connections
for Restricted
Dialing
Option4
Page
47

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