165
Assembling a SCSI Chain

The scanner is connected directly to the Macintosh.

Other external SCSI devices are set up beyond the scanner.

All Macintosh computers
except
Macintosh IIfx and PowerBook Scanner Termination
m
A SCSI terminator is needed on last
device in chain.
m
Set scanner SCSI ID to number 2,
termination off.
m
You can change the scanner ID number
if you need to, but set termination off.
Macintosh PowerBook only Scanner Termination
m
No external terminator needed for scanner.
m
Set scanner SCSI ID to number 2,
termination on.
m
You can change the scanner ID number
if you need to, but set termination on.
Scanner is at the beginning of the SCSI chain
Macintosh IIfx only Scanner Termination
m
Use special Apple Macintosh IIfx terminator
on last device in chain.
m
Set scanner SCSI ID to number 2,
termination off.
m
You can change the scanner ID number if
you need to, but set termination off.
Macintosh
Scanner
SCSI peripheral cableSCSI system cable
SCSI 1
device SCSI 2
device
Terminator
IIfx terminator
Macintosh IIfx
Scanner
SCSI system cable SCSI peripheral cable
SCSI 1
device SCSI 2
device
Scanner
SCSI system cable SCSI peripheral cable
SCSI 1
device SCSI 2
device
Macintosh 
PowerBook
Terminator