Some SCSI devices don't work.......

There are some problems with the Comodore/AmigaTech. SCSI device, because of
the fast-SCSI option on the SCSI board itself. If you have some different terminations
(active and passive) there can be interferences in the whole SCSI line.
The one thing you can do, is making sure you've got the same termination on both ends (active or passive). 
If you've got a tower, maybe you have an iternal active termination.
The other thing you can do is to switch te DIP-switch 4 on the SCSI board to off
(that's the SCSI-fast option) and it should work.
The ultra-SCSI devices work, but they have an active termination, while
most normal devices (scaner, zip-drive.....) have a passive termination.

If you've got more questions do not hesitate ask me:

sascha@ancor.ch