Jumpers And Connectors - Aaeon PCM-5896 User Manual

Jumpers and connectors

Connectors on the board link it to external devices such as hard
disk drives, a keyboard, or floppy drives. In addition, the board
has a number of jumpers that allow you to configure your system
to suit your application.
The following tables list the function of each of the board's jumpers
and connectors.
Jumpers
Label
J2
J3
J4
J5
J6
J7
J8
J9
J10
J11
J12
S1 (2~6)
S3 (1~3)
S3 (4~6)
10 PCM-5896 User Manual
Function
Clear CMOS
DOC address select
ATX soft-power switch connector
COM4 RI pin voltage select
COM2 RS-232/422/485 select
LCD clock select
LCD driving voltage select
Reserve for future use (default : 1-2 close)
COM3 RI pin voltage select
COM2 RS-232/422/485 select
Audio output select
CPU Vcore select
CPU clock select
CPU frequency ratio