COMMELL LS-572 - Manual (Page 35)

LS-572 User’s Manual
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2.14 <Serial Port>
The board supports one 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: CN_COM2
Type: 10-pin (5 x 2) 2.54mm x 2.54mm-pitch header 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
Function JCSEL1 JCSEL2
IrDA
RS-422
RS-485
RS-232
10
1 2
9
8 2
7 1
2
1
12
11
1 7
2 8
1 7
2 8
1 7
2 8
1 11
2 12
1 11
2 12
1 11
2 12