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3307568 User’s Manual Hardware Setup
2.14
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_COM1/2
Type: 10-pin (5 x 2) 2.54mm x 2.54mm-pitch header for COM2
2 10
1 9
Pin Description
Pin Description
1
DCD/422RX-/485-
2
RXD/422RX+/485+
3 TXD/422TX+
4 DTR/422TX-
5 GND
6 DSR
7 RTS
8 CTS
9 RI
10 N/C
JCSEL2
JCSEL1
CN_COM1/2
32
Serial Port