Rugged Cams Workhorse DVR 4 Channel - Manual (Page 12)

11
(1) PTZ camera
To use a PTZ camera, connect the control cable to the RS485 connector.
RS485 uses the RJ-11 6-pin type. Below is the pin arrangement:
Pin 1 2 3 4 5 6
RS485
GND TR+ TR- TR+ TR- GND
(2) Audio input/output
There are two audio input ports and one audio output port.
(3) DIO (sensor/relay) extension module
Connect the DIO (sensor/relay) extension module to the DIO connector on the rear side using a D-
SUB 25-type extension cable.
A) External sensor connection option
The DIO (sensor/relay) extension module consists of four sensor input ports and one relay output
port.
DIO (sensor/relay) extended module
Sensor input port
Audio Output
Audio Intput