User`s manual

NANO830/831 Intel
®
Atom
TM
D2550/N2600 Processor Nano-ITX Board
10 Board and Pin Assignments
2.3 Jumper Settings
Jumper is a small component consisting of jumper clip and jumper pins. Install jumper clip on 2
jumpe
r 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 NANO830/831 to meet your application purpose.
Below you ca
n 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 Setting
JP1
LVDS Voltage Selection
Default: +3.3V level
1-2 Close
JP2 3-5, 4-6 Close
JP3 3-5, 4-6 Close
JP4
COM1 RS-232/422/485 Mode Setting
Default: RS-232
1-2 Close
CN2 Pin 1: DCD 3-5 Close
COM2 Data/Power Selection (NANO830 only)
Default: RS-232 Data
CN2 Pin 8: RI 4-6 Close
CN19 Pin 1: DCD 3-5 Close
JP5
COM2 Data/Power Selection (
NANO831 only)
Default: RS-232 Data
CN19 Pin 9: RI 4-6 Close
CN3 Pin 1: DCD 3-5 Close
JP6
COM1 Data/Power Se
lection
Default: RS-232 Data
CN3 Pin 8: RI 4-6 Close
JP8
LVDS Brightness Control Mode Setting
Default: PWM Mode
1-2 Close
JP9
Restore BIOS Optimal Defaults
Default: Normal Operation
1-2 Close
JP10
Auto Power On
Default: Disable
Close