2.2.2 ICA-HM316W I/O Control Instruction
1. Digital Input (GND + Alarm)
An alarm input for connecting devices that can toggle between an open and closed circuit, for
example: PIRs, door/window contacts, glass break detectors, etc. When a signal is received the
state changes and the input becomes active.
2. Relay output (COM +N.O.) / (COM+N.C.)
An output to relay switch, for example: LEDs, Sirens, etc
3. Digital Input/Alarm Input
1) GND (Ground): Initial state is LOW
2) Alarm: Max. 50mA, DC 3.3V
4. Relay Output
1) N.C. (Normally Close): Max. 1A, 24VDC or 0.2A, 110~240VAC
2) COM: (Common)
3) N.O. (Normally Open): Max. 1A, 24VDC or 0.2A, 110~240VAC
Relay
1. Digital Input connection
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