User`s manual

29
 I/O PIN definition, please refer to the following statement
ALARM
ALARM INPUT
Standard Voltage: 3.3V (internal Voltage)
Connect “ALARM” and “GND” two pins.
GND
N.C.
RELAY OUTPUT
Contact Rating: 30V DC/ 1A, 125V AC/ 0.3A
Depends on the devices, the user should connect “N.C.” and “COM” pins
or “N.O.” and “COM” pins
COM
N.O.
[Example]
RELAY INSTALLATION EXAMPLE 1
Trigger a normal off (Normal Open) alarm siren on when event/motion occur at COM:
RELAY INSTALLATION EXAMPLE 2
Trigger the normal on (Normal Close) indoor illumination off when event / motion occur at COM: