Setting Jumpers & Connectors; Serial Port Setting - Rs232/422/485 (Jrs1, Jrs2, Jrs3, Jrs4) - Avalue Technology EMX-CDV User Manual

2.4 Setting Jumpers & Connectors
2.4.1 Serial Port 1 Setting - RS232/422/485 (JRS1, JRS2, JRS3, JRS4)
* Default
JRS3
JRS1
JRS2
JRS4
RS232
RS422/RS485
RS422/485 Pin Mapping
Pin RS-232
1 DCD
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
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User's Manual
*
RS-485 RS-422
TXD- TXD-
TXD+ TXD+
RXD+
RXD-
GND GND