CONNECTIONS AND OPERATION
6
FIGURE 1. LINE INPUT Connector Wiring for 1-Channel
Operation with Non-RTS Power Supply
FIGURE 2. Bottom View of the Main Circuit Board
FIGURE 3. LINE LOOP Connector Wiring for 2-Channel
Operation with Non-RTS Power Supply.
200 Ohms
+
Pin 1, Common
10mF
/
50V
Pin3,Ch2+Audio
Pin 2, +18 TO +24 VDC
TO BP325
LINE INPUT
TO INTERCOM
CHANNELS AND
POWER SUPPLY
Pin 1
Pin 2
Pin 3
+18to+24VDC
Common
No Connection
FIGURE 4. LINE INPUT Connector Wiring for 2-Channel Operation with Non-RTS Power Supply
200 Ohms
+
Pin 1, Common
200 Ohms
+
10mF
/
50V
10mF
/
50V
Pin3,Ch2+Audio
Pin2,Ch1+Audio
TO BP325
LINE INPUT
TO INTERCOM
CHANNELS
OPTIONAL CONNECTOR
TO ADDITIONAL
INTERCOM STATION
LINE INPUT
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