Avermedia AVerDiGi EB3004 NET User Manual page 13

RS-485 Pin Definition
When connect PTZ camera through RS485 interface, please refer to the following pin definition to
connect the DVR and PTZ.
If user uses the 2 wires for the PTZ camera connection, please connect to the RS-485 TX+
i
and TX- of the DVR site.
Pin #
21 TX+ RS485 TX+ signal
22 TX- RS485 TX- signal
23 RX+ RS485 RX+ signal
24 RX- RS485 RX- signal
DVR site PTZ site
RS485 RX+ signal
RS485 RX- signal
RS485 TX+ signal
RS485 TX- signal
8