Advantech HMI-640S user manual Setting jumpers

4.7Setting jumpers

You may configure your card 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 2 and 3.

1 2 3

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 doubts about the best hardware configuration for your application, contact your local distributor or sales representa- tive before you make any changes.

Generally, you simply need a standard cable to make most connec- tions.

Chapter 4 CPC-2245N Main Borad 37