User guide

EPIC Board EPIC-QM77
Chapter 2 Quick Installation Guide 2-40
11
RXD2(422RXD+)
IN
13
DTR#2(422RXD-)
OUT
15
DSR#2
IN
17
CTS#2
IN
Pin Pin Name Signal Type Signal Level
2
RXD#1
IN
4
DTR#1
OUT
6
DSR#1
IN
8
CTS#1
IN
10
DCD#2
(485D-)(422TXD-)
IN
12
TXD2
(485D+)(422TXD+)
OUT
14
GND
OUT
16
RTS#2
OUT
18
RI#2
IN
2.46 RS-232 Serial Port Connector (COM3)