User guide

EPIC Board EPIC-QM77
Chapter 2 Quick Installation Guide 2-41
Pin Pin Name Signal Type Signal Level
1
DCD#3 IN
2
DSR#3 IN
3
RXD3 IN
4
RTS#3 OUT
5
TXD3 OUT
6
CTS#3 IN
7
DTR#3 OUT
8
RI#3 IN
2.47 RS-232 Serial Port Connector (COM4)
Pin Pin Name Signal Type Signal Level
1
DCD#4 IN
2
DSR#4 IN
3
RXD4 IN
4
RTS#4 OUT
5
TXD4 OUT
6
CTS#4 IN
7
DTR#4 OUT
8
RI#4 IN
9
GND GND