Rs485 pin definition, 4 rs485 pin definition – AVer EH1116H-4 Nano user manual User Manual

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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.

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.

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