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12-Pin Alarm Input/Output Connection
Using the 12-pin connector, installers can connect 4 digital alarm inputs and 2 digital
alarm outputs. The alarm pins are serviceable for connecting alarm input and output
devices such as sensors, sirens, or flashing lights to the surveillance system. For the
definition of each pin, refer to the list below.
Pin Definition
1 Alarm OUT NO 1
2 Alarm OUT NC 1
3 Alarm OUT COM 1
4 GROUND
5 Alarm OUT NO 2
6 Alarm OUT NC 2
7 Alarm OUT COM 2
8 GROUND
9 Alarm IN 4
10 Alarm IN 3
11 Alarm IN 2
12 Alarm IN 1
Audio Input/Output Connection
1. Line IN
2. GROUND
3. Line OUT