HIKVISION DS-8100HFI-ST Quick Manual page 11

Appendix: Asynchronous Pin Connections
RJ45 8Pin - Female
8-Pin RS-232
1 DSR
2 RTS
3 GND
4 TXD
5 RXD
6 DCD
7 CTS
8 DTR
RS-485 HALF RS-485 FULL
TxD+
GND GND
TxD-
DATA+(A) RxD+
DATA-(B) RxD-
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Menson Qi
RS-422
TxD+
GND
TxD-
RxD+
RxD-