AVerMedia Technologies EB1304 NET - Manual (Page 12)

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1.5.3.1 I/O Card Sensor and Relay pinhole allocation:
The signal from the sensor (i.e., infrared sensors, smoke detectors, proximity
sensors, door sensors, etc.) is being transmitted to the unit and this triggers the
system to respond and send signal to relay device (i.e., alarm, telephone etc).
Pin # Definition
1 Sensor 1 positive pole signal
2 Sensor 1 negative pole signal
3 Sensor 2 positive pole signal
4 Sensor 2 negative pole signal
5 Sensor 3 positive pole signal
6 Sensor 3 negative pole signal
7 Sensor 4 positive pole signal
8 Sensor 4 negative pole signal
9 Relay negative pole signal
10 Relay positive pole signal