User`s manual

CAPA831 Intel
®
Atom
TM
D2550/N2800/N2600 Processor 3.5” SBC
Board and Pin Assignments 9
2.3 Jumper Settings
Jumper is a small component consisting of jumper clip and jumper pins. Install jumper clip on 2
jumper pins to close. And remove jumper clip from 2 jumper pins to open. Below illustration
shows how to set up jumper.
Properly configure jumper settings on the CAPA831 to meet your application purpose. Below
you can find a summary table of all jumpers and onboard default settings.
Note: Once the default jumper setting needs to be changed, please do it under
power-off condition.
Jumper
Description
Jumper Setting
JP1
Auto Power On
Default: Disable
2-3 close
JP2
LVDS Voltage Selection
Default: +3.3V
1-2 close
JP3
LVDS Brightness Control Mode Setting
Default: PWM Mode
1-2 close
JP5
COM2 RS-232/422/485 Mode Setting
Default: RS-232
1-2 close
JP6
3-5, 4-6 close
JP7
3-5, 4-6 close
JP8
COM1 RS-232/422/485 Mode Setting
Default: RS-232
1-2 close
JP9
3-5, 4-6 close
JP10
3-5, 4-6 close
JP11
COM4 Data/Power Selection
Default: RS-232 Data
CN9 Pin 11: DCD
3-5 close
CN9 Pin 18: RI
4-6 close
JP12
COM3 Data/Power Selection
Default: RS-232 Data
CN9 Pin 1: DCD
3-5 close
CN9 Pin 8: RI
4-6 close
JP13
COM2 Data/Power Selection
Default: RS-232 Data
CN11 Pin 1: DCD
3-5 close
CN11 Pin 8: RI
4-6 close
JP14
Restore BIOS Optimal Defaults
Default: Normal Operation
1-2 close
JP15
COM1 Data/Power Selection
Default: RS-232 Data
CN10 Pin 1: DCD
3-5 close
CN10 Pin 8: RI
4-6 close
JP16
Audio Output Selection
Default: Line-out
1-3, 2-4 close