Intel AR-B1760 User Manual page 28

INSTALLATIONS
J18: Serial Ports
Pin # Signal Name (RS-232)
1 DCD, Data carrier detect
2
3 TXD, Transmit data
4 DTR, Data terminal ready
5
6 DSR, Data set ready
7 RTS, Request to send
8
9
10
COM2 is jumper selectable for RS-232, RS-422 and RS-485.
Pin #
RS-232
1 DCD
2 RX
3 TX
4 DTR
5 Ground
6 DSR
7 RTS
8 CTS
9 RI
10 NC
J20: IrDA Connector
J20 is used for an optional IrDA connector for wireless communication.
24 AR-B1760 User's Manual
RXD, Receive data
Ground
CTS, Clear to send
RI, Ring indicator
No Connect.
Signal Name
R2-422 RS-485
TX- DATA-
TX+ DATA+
RX+ NC
RX- NC
Ground Ground
RTS- NC
RTS+ NC
CTS+ NC
CTS- NC
NC NC
Pin # Signal Name
1 +5V
2 No connect
3 Ir RX
4 Ground
5 Ir TX