
46
www.gigaipc.com
GIGAIPC reserves the right to modify or revise the content at anytime without prior notice.
3.2.16 COM1, COM2 (Serial Port connector (RS-232/422/485
& RI/5V/12V))
17 18
COM1
COM1
COM1
COM1
COM2
COM2
COM2
COM2
Serial port Connector
Pin
No.
RS-232
RS-422
Full Duplex
RS-485
Half Duplex
1
DCD
TXD
-
D-
2
RXD
TXD+
D+
3
TXD
RXD+
—
4
DTR
RXD-
—
5
GND
—
—
6
DSR
—
—
7
RTS
—
—
8
CTS
—
—
9
RI
—
—