Philips PCA82CR - Manual (Page 38)

19 A 19
Before sliding your CD-ROM drive into the 5.25” drive
bay, you have to decide whether the drive is going to
be a master or slave device by adjusting the


and

jumpers on its back. This appendix presents some
basic concepts of IDE connections to help you make the
decision and describes the way to set the jumpers.
A.1 IDE Connections
When you open your PC box, most likely you will see a
wide ribbon cable with two 40-pin connectors stemming
from a connector seat on the mother board; each of the
connectors may or may not have been connected to a
peripheral device. Such a cable is called an IDE
cable and the connector seat an IDE port, The
functionality of the cable and port is determined by
an “IDE controller”, either built-in on your
motherboard or in the form of an add-on card. This
whole set of things acts as a data bridge between your
CPU and devices that are designed for use with the IDE
standards.
Red
IDE Cable
Floppy Cable
Primary Port
Figure A-1 IDE Port and Cable on Motherboard
A MASTER OR A SLAVE
DEVICE?
A