Hardware installation for ConnectPort X4 H
35
9-pin RS-232, RS-422, and RS-485 connector pinouts
RS-232 RS-422 RS-485
Pin Function Pin Function Pin Function
1 CD 1 CTS(-) 1 CTS(-)
2RXD 2RXD(+) 2485(+)
3TXD 3TXD(+) 3N/A
4DTR 4RTS(-) 4RTS(-)
5 GND 5 GND 5 GND
6DSR 6RXD(-) 6485(-)
7RTS 7RTS(+) 7RTS(+)
8CTS 8CTS(+) 8CTS(+)
9RI 9TXD(-) 9N/A
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