User’s Manual
REV-Q703
User’s Manual 13
2.2 Jumper and Connector List
You can configure your board to match the needs of your application by setting jumpers. A
jumper is the simplest kind of electric switch.
It consists of two metal pins and a small metal clip (often protected by a plastic cover) that
slides over the pins to connect them. To “close” a jumper you connect the pins with the clip.
To “open” a jumper you remove the clip. Sometimes a jumper will have three pins, labeled 1,
2, and 3. In this case, you would connect either two pins.
The jumper settings are schematically depicted in this manual as follows:
A pair of needle-nose pliers may be helpful when working with jumpers.
Connectors on the board are linked 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.
If you have any doubts about the best hardware configuration for your application, contact
your local distributor or sales representative before you make any changes.
The following tables list the function of each of the board's jumpers and connectors.
Jumpers
Label
Function
Note
JFUNC_SEL
AT/ ATX Mode selector
Platform selector
PCI-e channel selector
6 x 2 header, pitch 2.00mm
JCMOS1
Clear CMOS
3 x 1 header, pitch 2.00mm
JBIOS1
Module/Carrier BIOS selector
3 x 1 header, pitch 2.00mm
JUSBFUNC1
USB Port selector
3 x 2 header, pitch 2.00mm
Connectors
Label
Function
Note
SD1
SD card slot
JCPUFAN1
CPU fan connector
4 x 1 wafer, pitch 2.54mm
HD_PWR1/2
HD Power connector 1/2
4 x 1 wafer, pitch 2.50mm
