Connecting scsi devices 54, Connecting scsi devices – Apple PowerBook (5300 Series) User Manual

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Connecting SCSI devices

A SCSI device is any product—including hard disk drives, CD-ROM drives,
and scanners—that communicates with your computer by means of a
standard electronic interface. (SCSI stands for Small Computer System
Interface.) You can attach up to six SCSI devices to your computer by linking
them together in a chain that starts at your computer’s SCSI port.

To connect a SCSI device to your Macintosh PowerBook, you need an Apple
HDI-30 SCSI System Cable or equivalent. This cable is light gray, is about 19
inches long, and has 29 pins (one “missing” pin).

Refer to the manuals that came with your SCSI devices for instructions on
installing any necessary software, setting SCSI ID numbers, and connecting
SCSI cables and SCSI terminators. Refer to the illustrations on the next page
for the proper positioning of SCSI terminators. A SCSI chain of devices must
include a terminator attached to the first and last devices in the chain (but
nowhere else in the chain). Some devices include internal terminators. Your
Macintosh PowerBook is not internally terminated.

The names and the part numbers of the cables mentioned in this chapter are
the following:

Type of connection

Name of part

Part number

From your computer to

Apple HDI-30 SCSI System Cable

M2538LL/A

a SCSI device

From SCSI device to

Apple SCSI Peripheral Interface Cable

M0207

a SCSI device

For SCSI disk mode

Apple HDI-30 SCSI Disk Adapter Cable

M2539LL/A

To connect an

PowerBook Video Adapter Cable

M3927LL/A

external monitor

WARNING

When connecting SCSI equipment,

always turn off power to

all devices in the chain, including your computer. If you don’t, you

could lose information and damage your equipment.

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Chapter 4

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