Biostar CX70M-PE Setup Manual page 19

LCD Backlight Brightness Adjust Header (JP2) *
This header is for adjusting LCD backlight brightness.
Serial Port Connectors
These are Serial Port Connectors for connecting RS-232 Port.
1
3
1 2
3 4
1
3
Pin
JCOM1
JCOM2
1 2
9 10
CX70M-PE
2
4
Short Pin 1-2:
Decrease Brightness
2
4
Short Pin 3-4:
Increase Brightness
Assignment
Carrier detect
1
Data set ready
2
Received data
3
Request to send
4
Transmitted data
5
Clear to send
6
Data terminal ready
7
Ring indicator
8
Signal ground
9
Key
10
19