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38 PPC-A84/A120 User's Manual
3.3 Jumpers and Connectors
3.3.1 Setting jumpers
You can configure your panel PC to match the needs of your applica-
tion by setting jumpers. A jumper is the simplest kind of electrical
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 pins 2 and 3.
The jumper settings are schematically depicted in this manual as
follows:
A pair of needle-nose pliers may be helpful when working with
jumpers.
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.
1
3
2
OpenOpen
OpenOpen
Open
ClosedClosed
ClosedClosed
Closed
Closed 2 - 3Closed 2 - 3
Closed 2 - 3Closed 2 - 3
Closed 2 - 3
1
OpenOpen
OpenOpen
Open
ClosedClosed
ClosedClosed
Closed
Closed 2 - 3Closed 2 - 3
Closed 2 - 3Closed 2 - 3
Closed 2 - 3