Ax93283 Jumper Settings; Com1 Data/Power Selection (Jp1 And Jp2) - AXIOMTEK PICO840 User Manual

3.4

AX93283 Jumper Settings

Properly configure jumper settings on the AX93283 I/O board to meet your application purpose.
Below you can find a summary table of all jumpers and onboard default settings.
Once the default jumper setting needs to be changed, please do it under power-off
condition.
Note
Jumper Description
COM1 Data/+12V Power Selection
JP1
Default: RS-232 Data
COM1 Data/+5V Power Selection
JP2
Default: RS-232 Data
3.4.1

COM1 Data/Power Selection (JP1 and JP2)

The COM1 port has +12V level power capability on RI and +5V level on DCD by setting
JP1 and JP2, respectively. When this port is set to +12V or +5V level, please make sure
its communication mode is RS-232 (see section 5.4).
Function
Data: Set CN3 pin 18 to RI (Default)
Power: Set CN3 pin 18 to +12V level
Function
Data: Set CN3 pin 10 to DCD (Default)
Power: Set CN3 pin 10 to +5V level
AX93283 I/O Board
PICO840/842 Pico-ITX Board
CN3 Pin 18: RI
CN3 Pin 10: DCD
JP1 Setting
1-2 close
2-3 close
JP2 Setting
1-2 close
2-3 close
Setting
1-2 Close
1-2 Close
25