Aaeon SBC-551 Manual page 20

By setting the jumpers, you can configure your card to match the
needs of your specific applications. 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 pins 1 and 2 or 2 and 3.
3
2
1
Open Closed Closed 2-3
The jumper settings are schematically depicted in this manual as
follows:
1 2 3
Open Closed Closed 2-3
A pair of needle-nose pliers may be helpful when working with
jumpers.
If you have any doubt about the best hardware configuration for
your applications, contact your local distributor or sales represen-
tative before you make any changes.
12 SBC-551/552 User Manual