Xerox 1200 User Manual page 173

Scanner is at the beginning of the 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
Macintosh
SCSI 1
Scanner
device
SCSI system cable
Macintosh IIfx only
Macintosh IIfx
SCSI 1
Scanner
device
SCSI system cable
SCSI peripheral cable
Macintosh PowerBook only
Macintosh
PowerBook
SCSI 1
Scanner
SCSI system cable
SCSI 2
device
Terminator
SCSI peripheral cable
SCSI 2
device
IIfx terminator
SCSI 2
device
device
Terminator
SCSI peripheral cable
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.
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.
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.
Assembling a SCSI Chain
165