11
COM5/6: Internal RS-232/422/485 Serial Port Connectors
Mode
RS232
RS422
RS485
PIN NO.
DESCRIPTION
DESCRIPTION
DESCRIPTION
1
DCD
TXD422#
TXD485#
2
DSR
3
RXD
N/A
4
RTS
RXD422#
N/A
5
TXD
N/A
N/A
6
CTS
N/A
N/A
7
DTR
N/A
N/A
8
RI
N/A
N/A
9
GND
GND
N/A
COM2/3/4: Internal RS-232 Serial Port Connectors
PIN NO.
DESCRIPTION
PIN NO.
DESCRIPTION
1
DCD
2
DSR
3
RXD
4
RST
5
TXD
6
CTS
7
DTR
8
RI
9
GND
COM1: External Serial Port Connector
PIN NO.
DESCRIPTION
PIN NO.
DESCRIPTION
1
DCD1
2
RXD1
3
TXD1
4
DTR1
5
GND1
6
DSR1
7
RTS1
8
CTS1
9
RI1
USB1~2: Internal USB Connector
PIN NO.
DESCRIPTION
PIN NO.
DESCRIPTION
1
VCC
2
GND
3
USB_DATA-
4
U
5
U
6
USB_DATA-
7
GND
8
VCC
