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External Control Device Terminal(RS–422/485)
This terminal is connected to external control devices. The JP2 termination that set is turns on and
off the termination resistance of RS–422/485 communication device. The JP2 termination is inside of
the DVR.
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No. Description
Classification RS-422 RS-485
1 TX+(+Transmit Data) Data+
2 TX-(- Transmit Data) Data-
3 RX+(+Receive Data)
4 RX-(- Receive Data)
When using RS–485, connect TX+ to Data+ and connect TX– to Data–.