1.5.4 Rs485 Pin Definition - AVer EH1116H-4 Nano User Manual

1.5.4 RS485 Pin Definition

When connect PTZ camera through RS485 interface, please refer to the following pin definition to connect the
DVR and PTZ.
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.
Pin # DVR site
TX+ RS485 TX+ signal
TX- RS485 TX- signal
RX+ RS485 RX+ signal
RX- RS485 RX- signal
PTZ site
RS485 RX+ signal
RS485 RX- signal
RS485 TX+ signal
RS485 TX- signal
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