USER MANUAL
CHAPTER 2
INSTALLATION
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2.2.3 Serial Port Connector
The Bar-Type Panel PC uses D-SUB 9pin connector to connect serial interfaces.
The connector secured to the enclosure with two screws.
RS232
RS232/422/485
Serial port settings can
be configured for RS-232, RS-422 or RS-485 by jumpers. Refer
to Ch.2,
Configuring Serial Port Settings
section of this user manual for the instruction on
how to configure COM1 serial port settings.
Pin
№
RS-232
1
DCD
2
RXD
3
TXD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
Pin
№
RS-232
RS-422
RS-485
1
DCD
TxD-
D-
2
RXD
TxD+
D+
3
TXD
RxD+
NC
4
DTR
RxD-
NC
5
GND
GND
GND
6
DSR
NC
NC
7
RTS
NC
NC
8
CTS
NC
NC
9
RI
NC
NC