11
1�3�8 COM Port
A COM port on the front panel with D-sub 9P connectors supports RS-232/RS-422/RS-485
by BIOS selection.
1
5
6
9
Figure 1-6: COM Port
Pin
Signal Name
RS-232
RS-422
RS-485
1
DCD#
TXD422-
485DATA-
2
RXD
3
TXD
N/S
4
DTR#
RXD422-
N/S
5
GND
N/S
N/S
6
DSR#
N/S
N/S
7
RTS#
N/S
N/S
8
CTS#
N/S
N/S
9
RI#
N/S
N/S
Table 1-7: D-Sub 9p COM Port Signal Functions