User`s guide

Hardware
40
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(+)
3 TXD 3 TXD(+) 3 N/A
4DTR 4RTS(-) 4RTS(-)
5GND 5GND 5GND
6DSR 6RXD(-) 6485(-)
7RTS 7RTS(+) 7RTS(+)
8CTS 8CTS(+) 8CTS(+)
9RI 9TXD(-) 9N/A
9 +12VDC
switched power
out
9 +12VDC
switched power
out
9 +12VDC
switched power
out