A500 and scsi through side conn.

[Quixote]

;-) I'm not sure of the particulars of that controller, but in general there can be eight devices on a SCSI bus.  Mind you, the controller itself counts as one of them, so you're left with seven drives, scanners, etcetera to add on.

Each device needs a unique number between zero and seven.  (Seven is usually the controller itself, but not always.)

Also, the appliances must be connected in series, with no "Y" branches allowed.

[Quixote]

;-) It should be.  Just remember to terminate the bus at each end, and no where else.  Of course, some controllers have termination built in so that you needn't worry.