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5. SM40 SURVEILLANCE CENTRE MODULES
SURVEILLANCE SWITCH CARD LBB 1374
Comm.
From
DECODER
ADDRESS
SELECT
CPC
1
2
External contacts
(contact '1'is dedicated for clock synchronisation)
Comm
+5V
5
32
COMMUNICATION
3
b
b
a
a
c
c
CONTROL
1
CIRCUIT
1
2
3
4
5
6
7
8
8
CONTROL
CIRCUIT
Power supply
1
Address
a
selection
8
1
2
SWITCHES
1 - 8
15
16
TS
R
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