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.