Specifications

14 PCA-6180 User's Manual

1.8 Jumper Settings

This section provides instructions on how to configure your card by

setting the jumpers. It also includes the card's default settings and

your options for each jumper.

1.8.1 How to set the jumpers

You configure your card to match the needs of your application by

setting the jumpers. A jumper is a metal bridge that closes an electrical

circuit. 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” (or turn ON) a jumper, you connect the pins with the clip.

To “open” (or turn OFF) 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 CMOS clear (J1)

The PCA-6180 CPU card contains a jumper that can erase CMOS data

and reset the system BIOS information. Normally this jumper should be

set with pins 1-2 closed. If you want to reset the CMOS data, set J1 to

2-3 closed for just a few seconds, and then move the jumper back to 1-

2 closed. This procedure will reset the CMOS to its default setting.

Table 1-3: CMOS clear (J1)

Function Jumper setting

* Keep CMOS data 1-2 closed

Clear CMOS data 2-3 closed

* default setting