Serial Port Connector 1 (Com1); Serial Port Connector 2/3 (Com2/3) - Avalue Technology ARC-1738-C1 Quick Reference Manual

ARC-1738-C1
2.1 ARC-1738-C1 connector mapping

2.1.1 Serial port connector 1 (COM1)

2.1.2 Serial port connector 2/3 (COM2/3)

14 ARC-1738-C1 Quick Reference Guide
RS-232
Signal PIN PIN
DCD 1 6
RXD 2 7
TXD 3 8
DTR 4 9
GND 5
RS-422/485
Signal PIN PIN
5
422RX+ 4 3
422RX- 2 1
Signal PIN PIN
DCD 1 6
RXD 2 7
TXD 3 8
DTR 4 9
GND 5
Signal
DSR
RTS
CTS
RI
Signal
GND
485TX+
485TX-
Signal
DSR
RTS
CTS
RI