ADLINK NuPRO-E42 - Manual (Page 24)

12 Introduction
1.10 Onboard Connectors
COM1~6 Connector (RS-232) (CN11~14/16/23)
COM1 Connector (RS-422/485) (CN23)
Pin # RS-232 Signal
1 DCD
2 DSR
3 RXD
4 RTS
5 TXD
6 CTS
7 DTR
8 RI
9 GND
10 NC
COM1 COM2 COM3 COM4 COM5 COM6
Connector CN23 CN16 CN11 CN12 CN13 CN14
Pitch 2.54 mm 2.54 mm 2.00 mm 2.00 mm 2.00 mm 2.00 mm
Pin # RS-422 RS-485
1 TXD- Data-
2 NC NC
3 TXD+ Data+
4 NC NC
5 RXD+ NC
6 NC NC
7 RXD- NC
8 NC NC
9 GND GND
10 NC NC
1 2
9 10
1 2
9 10