User`s manual

CAPA831 Intel

Atom

D2550/N2800/N2600 Processor 3.5” SBC

12 Board and Pin Assignments

2.3.9 Restore BIOS Optimal Defaults (JP14)

Put jumper clip to pin 2-3 for a few seconds then move it back to pin 1-2. Doing this

procedure can restore BIOS optimal defaults.

2.3.10 COM1 Data/Power Selection (JP15)

The COM1 port has +5V level power capability on DCD and +12V level on RI by setting

this jumper. When this port is set to +5V or +12V level, please make sure its

communication mode is RS-232 (see section 2.3.5).

2.3.11 Audio Output Selection (JP16)

Use this jumper to select line out or speaker out as source of audio output on audio

connector. When speaker out is used, it delivers 1W/channel continuous at 8 Ohm

loads.

Function

Setting

Normal (Default)

1-2 close

Restore BIOS optimal defaults

2-3 close

Function

Setting

Power: Set CN10 pin 1 to +5V level

1-3 close

Data: Set CN10 pin 1 to DCD (Default)

3-5 close

Power: Set CN10 pin 8 to +12V level

2-4 close

Data: Set CN10 pin 8 to RI (Default)

4-6 close

Function

Setting

Line out (Default)

1-3, 2-4 close

Speaker out

3-5, 4-6 close