Advantech PCA-6275 manual Jumper Settings, How to set jumpers, CPU core frequency J1

1.8Jumper Settings

This section provides instructions on how to configure your card by setting jumpers. It also includes the card's default settings and your options for each jumper.

1.8.1 How to set jumpers

You configure your card 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 consists of a set of three pins, labeled 1, 2 and 3. In this case you connect either pins 1 and 2, or 2 and 3.

A pair of needle-nose pliers may be useful when setting jumpers.

1.8.2 CPU core frequency (J1)

You must configure your PCA-6275 CPU card to the frequency of your Intel Pentium® II processor by setting jumper J1. The PCA-6275 is equpped to use Pentium processors with speeds of 233, 266, 300, 333, 350, 400, 450, and 500 MHz. Configure your PCA-6275 as follows:

Chapter 1 Hardware Configuration 11