Ax93283 jumper settings, Com1 data/power selection (jp1 and jp2), 1 com1 data/power selection (jp1 and jp2) – Axiomtek PICO841 User Manual

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PICO841 Intel

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Processor E3845/E3827 Pico-ITX Board

AX93283 I/O Board

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.

Note

Once the default jumper setting needs to be changed, please do it under power-off
condition.

Jumper

Description

Setting

JP1

COM1 Data/+12V Power Selection
Default: RS-232 Data

CN3 Pin 18: RI

1-2 Close

JP2

COM1 Data/+5V Power Selection
Default: RS-232 Data

CN3 Pin 10: DCD

1-2 Close

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 6.4).

Function

JP1 Setting

Data: Set CN3 pin 18 to RI (Default)

1-2 close

Power: Set CN3 pin 18 to +12V level

2-3 close

Function

JP2 Setting

Data: Set CN3 pin 10 to DCD (Default)

1-2 close

Power: Set CN3 pin 10 to +5V level

2-3 close