AVer MOB1304-NET - Manual (Page 17)

11
Sensor in and Alarm pinhole:
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
11 Sensor 1 signal
12 Sensor 1 Ground signal
13 Sensor 2 signal
14 Sensor 2 Ground signal
15 Sensor 3 signal
16 Sensor 3 Ground signal
17 Sensor 4 signal
18 Sensor 4 Ground signal
19 Relay signal
20 Relay signal
RS-485 pinhole:
When connect PTZ camera through RS485 interface, please refer to the following pin definition to
connect the DVR and PTZ.
Pin # DVR site PTZ site
TX+ RS485 TX+ signal RS485 RX+ signal
TX- RS485 TX- signal RS485 RX- signal
RX+ RS485 RX+ signal RS485 TX+ signal
RX- RS485 RX- signal RS485 TX- signal
i
If user uses the 2 wires for the PTZ camera connection, please connect to the RS-485 TX+ and TX- of the
DVR site.