AVer EH6216H+ user manual - Manual (Page 27)

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CHAPTER 1
1.4.3.3 RS485 Pin Definition
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.