American Fibertek Net I/O N-664 - Manual (Page 42)

42
RS485
Pins
1 Not connected
2 Receive Data Positive (RX+)
3 Transmit Data Negative (TX-)
4 Not connected
5 Ground
6 Not connected
7 Transmit Data Positive (TX+)
8 Receive Data Negative (RX-)
9 Not connected
Aux/Alarm
Pins
1 Aux Contact Common
2 Aux Contact Normally Closed
3 Aux Contact Normally Open
4 Alarm Contact In
5 Alarm Contact In