
MS-C73 User’s Manual
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2.11 <Serial Port>
The board supports Six RS232 serial port and one jumper selectable RS232/422/485
serial ports. The jumper JCSEL1 & JCSEL2 can let you configure the communicating
modes for COM2.
Connector:
COM1/3
Type: 9-pin D-sub male connector on bracket for COM1/3
Pin
Description
Pin
Description
1
DCD
2
RXD
3
TXD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
10
N/C
Connector:
COM2
Type: 9-pin D-sub male connector on bracket for COM2
Pin
Description
Pin
Description
1
DCD/422TX-/485-
2
RXD/422TX+/485+
3
TXD/422RX+
4
DTR/422RX-
5
GND
6
DSR
7
RTS
8
CTS
9
RI
10
N/C
Setting RS-232 & RS-422 & RS-485 for COM2
Connector:
CN_COM4/5/6
Type: 9-Pin box header
Pin
Description
Pin
Description
1
DCD
2
RXD
3
TXD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
10
N/C
COM1
COM3
COM2
1
2
9
10
Содержание MS-C73
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