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ICA-500 User’s Manual
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Appendix B: Alarm I/O
Connector
Interfacing to the External I/O
An external sensor that senses physical changes in the area ICA-500 is monitoring can
activate some features of the ICA-500. These changes can include intrusion detection or
certain physical change in the monitored area. For examples, the external sensor can be
a door switch or an infrared motion detector. These devices are customer provided, and
are available from dealers who carry surveillance and security products. Electrically, they
must be able to provide a momentary contact closure.
This ICA-500 provides a general I/O terminal block with two digital inputs and two
outputs for device control. Pin 1 and 2 can be connected to an external sensor 1. Pin 2
and 3 can be connected to an external sensor 2. Both of the inputs, the voltage will be
monitored from the initial state ‘LOW’. The relay switch of pin 4, 5 and 6 can be used to
turn on or off the external device. The relay switch of pin 7 and pin 8 can be used to turn
on or off the external device. External Inputs/Outputs are working independently.
Pin Function
1 Alarm Input #1 (A). Max 24VDC, 12mA.
2 Alarm Input #1/2 (K).
3 Alarm Input #2 (A). Max 24VDC, 12mA
4 Alarm Output #1 (NC). Max 24VDC, 1A
5 Alarm Output #1 (COM)
6 Alarm Output #1 (NO)
7 Alarm Output #2 (COM). Max 24VDC, 1A
8 Alarm Output #2 (NO)