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Connectors on the board link to external devices such as hard disk
drives, keyboard, or floppy drives. In addition, the board has a
number of jumpers that allow you to configure your system to suit
your applications.
The tables below lists the function of each of the board jumpers
and connectors:
JP1
JP2
JP3
JP4
JP5
JP7
JP8
JP9
JP10
JP11
SW1
CN1
CN2
CN3
CN4
CN5
CN6
CN7
CN8
CN9
CN10
CN11
CN12
10
SBC-551/552 User Manual
Hardware reset
Thermal alarm LED
Int VAG setting
Clear CMOS
Vio voltage setting
CPU clock setting
CPU frequency ratio
DOC address setting
RS-232/422/485 select
PS/2 mouse setting
CPU voltage setting
IDE LED connector
HDD connector
Floppy drive connector
Parallel (Printer) connector
Fan connector
USB connector
COM2 connector
Reserved IR connector
Power connector
COM1 connector
VGA connector
KB/PS2 mouse connector
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