5.Turn off any other devices in the SCSI chain.

6.Connect the PowerBook to either (a) the desktop Macintosh or (b) the end of the SCSI chain.

“Desktop Macintosh” includes all the models listed in the illustration, as well as a PowerBook Duo in a Duo Dock.

The illustration shows which cables to use and where to add cable terminators. (Note that most configurations don’t require external terminators.) Remove the terminator from the last device in an existing chain before connecting the PowerBook.

continues .

(a)

Connecting to a desktop Macintosh

nModels without internal hard disk: Classic, Classic II, LC, LC II, LC III, IIfx

nModels with internal hard disk: Classic, Classic II, LC, LC II, LC III, SE, SE/30, II, IIx, IIcx, IIc, IIsi, IIfx, Macintosh Centris, Macintosh Quadra

SCSI system cable HDI-30 SCSI disk adapter

nModels without internal hard disk: SE, SE/30, II, IIx, IIcx, IIci, Macintosh Centris, Macintosh Quadra

Terminator

SCSI system cable HDI-30 SCSI disk adapter

nModels without internal hard disk: Plus, Portable

nModels with internal hard disk: Portable

No Terminator*

SCSI system cable HDI-30 SCSI disk adapter

(b)

Connecting to the end of a SCSI chain

nModels without internal hard disk: Classic, Classic II, LC, LC II, LC III, IIfx

nModels with internal hard disk: Classic, Classic II, LC, LC II, LC III, SE, SE/30, II, IIx, IIcx, IIc, IIsi, IIfx, Macintosh Centris, Macintosh Quadra

SCSI peripheral interface cables

nModels without internal hard disk: Plus, Portable, SE, SE/30, II, IIx, IIcx, IIci, Macintosh Centris. Macintosh Quadra

nModels with internal hard disk: Portable

Terminator

SCSI peripheral

 

interface cables

SCSI system cable

HDI-30 SCSI disk adapter

SCSI system cable

HDI-30 SCSI disk adapter

*Do not use any terminators, non-Apple cables, or extension cables in this configuration, or it will not work.

Chapter 13: Building a PowerBook Duo System 261

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Apple Duo 270C manual Turn off any other devices in the Scsi chain