Avalue EMX-Q87R - Manual (Page 34)

EMX-Q87R User’s Manual
34 EMX-Q87R User’s Manual
2.7.9 Serial Port 1 Connector (COM1)
In RS-232 Mode
Signal PIN PIN Signal
DCD 1 2 RXD
TXD 3 4 DTR
GND 5 6 DSR
RTS 7 8 CTS
RI 9
In RS-422 Mode
Signal PIN PIN Signal
TX- 1 2 TX+
RX+ 3 4 RX-
GND 5 6
7 8
9
In RS-485 Mode
Signal PIN PIN Signal
TX- 1 2 TX+
3 4
GND 5 6
7 8
9
* RS232/RS422/RS485 Mode Change by BIOS Setup
BIOS SetupAdvancedNCT6106D Super IO
Configuration