Moxa Technologies NPort W2150A - Serial Port Pin Assignments

NPort W2150A/W2250A Series Introduction
1-5
Serial Port Pin Assignments
Pin RS-232 RS-422/ RS-485 (4W) RS-485 (2W)
1 DCD TxD-(A) ---
2 RXD TxD+(B) ---
3 TXD RxD+(B) Data+(B)
4 DTR RxD-(A) Data-(A)
5 GND GND GND
6 DSR --- ---
7 RTS --- ---
8 CTS --- ---
9 --- --- ---