Rs485 Port Connection - Ganz ZR-DHC830NP Instruction Manual

1.6 RS485 port connection

1.6 RS485 port connection
The DVR System and the PTZ device can be controlled using the RS485 interface. The RS485
terminal is provided in the DVR system can be used to control the PTZ camera, speed dome and
other external devices. For the PTZ camera, connect RX+ and TX+ with the (+)RS485 port,
connect RX- and TX- with the (-)RS485 port.
[Warning]
• Make sure that the positive (+) and minus(-) signals have the correct polarity.
Connecting to the wrong side could damage the system.
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