PLANET ICA-HM136 - Manual (Page 51)

Alarm Input Setting
By GPIO I/O port input that prov ides related action while I/O
input triggered.
GPIO Output Setting
By GPIO I/O port outp ut that provides O nOff Switch, Slide
Switch & Pan/Tilt Module for using with relay box.
GPIO pin define please refer to the part of Front / Back plane & I/O port pin assignment.
GPIO 0
GPIO 1
ALARM INPUT
Normal: 3.3V (The voltage differential from GPIO pin & GND)
Active: 0V (GPIO 0 & GPIO1 link to PIN2 GND)
GPIO 2
GPIO 3
ALARM OUTPUT
Normal: 3.3V (The voltage differential from GPIO pin & GND)
Active: 0V (GPIO 0 & GPIO1 link to PIN2 GND)
GPIO INSTALLATION EXAMPLE 1
Trigger a normal off (Normal Open) alarm siren on when event/motion occur at COM:
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