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Ground
5 5
Ground
NC 6
6
NC
NC 7
7
NC
NC 8
8
NC
NC 9
9
NC
Note:
Use COM3 RS422 or RS485 Function, please enter BIOS CMOS Setup. Path:
BIOS Setup Utility \ Advanced /Super IO Configuration \ Serial Port3 Type:
[RS-485]
[RS-422]
JP4:
(2.0mm Pitch 2x10 Pin Header) COM4 function setting jumper.
Function JP4
Pin#
RS232
Close: 3-5,4-6,10-12,11-13 (Default)
RS422 Close:
1-3,2-4,5-7,8-10,9-11,12-14,18-20 (option)
RS485 Close:
5-7,8-10,9-11,12-14,16-18 (option)
COM4:
(Type DB9),
I/O serial port, it provides selectable RS232/RS422/RS485 serial signal
output.
COM4 RS232 Type (Default)
：
Pin# Signal
Name
1
DCD# (Data Carrier Detect)
2
RXD (Received Data)
3
TXD (Transmit Data)
4
DTR (Data Terminal Ready)
5 Ground
6
DSR (Data Set Ready)
7
RTS (Request To Send)
8
CTS (Clear To Send)
9 RI
(Ring Indicator)
COM4 RS422 Type
(option)
COM4 RS485 Type
(option)
Signal Name
Pin#
Pin#
Signal Name
1
1
NC
