164 Appendix C
Macintosh PowerBook only Scanner Termination
m
Use external terminator.
m
Use factory setting (SCSI ID number 2,
termination on); no change is required.
m
You can change the scanner ID number if
you need to, but leave termination on.

The scanner is at the outside end of a SCSI chain.

Other external SCSI devices are set up between the scanner and the Macintosh.

All Macintosh computers
except
Macintosh IIfx and PowerBook Scanner Termination
m
No external SCSI terminator is needed.
m
Use factory setting (SCSI ID number 2,
termination on); no change is required.
m
You can change the scanner ID number if
you need to, but leave termination on.
Scanner is at the end of the SCSIchain
Macintosh IIfx only Scanner Termination
m
Use special Apple Macintosh IIfx terminator.
m
Use factory setting (SCSI ID number 2,
termination off); no change is required.
m
You can change the scanner ID number if
you need to, but turn termination off.
SCSI peripheral cable
SCSI system cable
Macintosh
SCSI 1
device SCSI 2
device SCSI 3
device Scanner
IIfx terminator
SCSI 1
device SCSI 2
device SCSI 3
device Scanner
Macintosh IIfx
SCSI peripheral cableSCSI system cable
SCSI 2
device SCSI 3
device Scanner
Macintosh 
PowerBook
SCSI system cable SCSI peripheral cable
Terminator
SCSI 1
device