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3.1.1
Setting Jumpers
You can configure your system 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 pins 1 and 2 or 2 and 3.
A pair of needle-nose pliers may be helpful when working with jumpers. If you have any questions
about the best hardware configuration for your application, contact your local distributor or sales
representative before you make any changes.
Generally, you simply need a standard cable to make most connections.
3.1.2
AT/ATX Mode Select(CN1 Pins 7-8)
The AT/ATX Mode Select functions by connecting pins 7 and 8 of CN1. To prevent damage to the
system, do not connect pins 7 and 8 to any other pin.
CN pins 7-8
Function
7-8 Open
AT Power Mode
7-8 Closed
ATX Power Mode (Default)
