Diagram 2: example of lock connection to intercom
12V DC
24 W
The electric current produced by some intercoms can be high, keeping the lock open
even after the opening button has been released.
This can be verified by determining if 12V AC is measured on IN1 even after the
button has been released. It is advisable to interface the intercom with a repeater
relay and connect the motor as shown in diagram 3 if necessary.
Diagram 3: example of lock connection to an intercom using a repeater relay
12V DC
24W
+
-
Red | V+ | Power supply (+)
Black | V- | Power supply (-)
Blue | IN1+ | Input for opening (+)
Blue/white | IN1- | Input for opening (-)
+
-
Red | V+ | Power supply (+
Black | V- | Power supply (-)
Blue/white | IN1- | Input for opening (-)
Blue | IN1+ | Input for opening (+)
Lock 12V~
Lock 12V~
Intercom
COM A1
Lock 12V~
NO
A2
Lock 12V~
Relay
- 29 -
Compatible with
5÷24V AC/DC
Opening
button
Compatible with
5÷24V AC/DC
Intercom
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