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COM 1 Ports (RS-232/422/485)
Users can change the configuration of COM1 by using BIOS setup utility.
Pin
Definition
Pin
Definition
1
DCD
6
DSR
2
RXD
7
RTS
3
TXD
8
CTS
4
DTR
9
RI
5
GND
(RS-232)
Pin
Definition
Pin
Definition
1
TX-
6
N/A
2
RX+
7
N/A
3
TX+
8
N/A
4
RX-
9
N/A
5
GND
(RS-422)
Pin
Definition
Pin
Definition
1
RTX-
6
N/A
2
N/A
7
N/A
3
RTX+
8
N/A
4
N/A
9
N/A
5
GND
(RS-485)
NOTE: Please refer to Chapter4 BIOS Setting - 4.2.5 COM1 Configuration
(page) to set parameters of COM1