Introduction; Ide Connector (Ide1) - EMAC PCA-6782 User Manual

2.1

Introduction

You can access most of the connectors from the top of the board while it is installed
in the chassis. If you have a number of cards installed or have a packed chassis, you
may need to partially remove the card to make all the connections.
You can configure your single board computer 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 con-
nect 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 use-
ful when setting jumpers.
2.2

IDE Connector (IDE1)

You can attach up to two IDE (Integrated Drive Electronics) drives to the PCA-6782's
built-in controller. The primary connector can accommodate two drives.
Wire number 1 on the cable is red or blue and the other wires are gray. Connect one
end to connector IDE1 on the single board computer. Make sure that the red/blue
wire corresponds to pin 1 on the connector (in the upper right hand corner). See
Chapter 1 for help finding the connector.
Unlike floppy drives, IDE hard drives can connect in either position on the cable. If
you install two drives to a single connector, you will need to set one as the master
and the other as the slave. You do this by setting the jumpers on the drives. If you
use just one drive per connector, you should set each drive as the master. See the
documentation that came with your drive for more information.
Connect the first hard drive to the other end of the cable. Wire 1 on the cable should
also connect to pin 1 on the hard drive connector, which is labeled on the drive circuit
board. Check the documentation that came with the drive for more information.
PCA-6782 User Manual
IDE
Figure 2.1 PCA-6782 IDE1 location
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