While reading some information on Snow Leopard for Mac, I can across a report by someone who has an elderly SCSI scanner hooked up to their Mac with
this adapter. Evidently, with some software conversion, it even works with Snow Leopard (and Windows Vista.) I know that there have been several people here trying to sort out SCSI for an old scanner. Or it might allow using a high quality affordable scanner that is SCSI based. Anyway, FYI.
Here is the note about the switch over to Snow Leopard as well.
Ratoc FR1SX Firewire-to-SCSI Converter is working with Snow Leopard 32-bit on 2008 Mac Pro 8-core 2.8.
I am using the FR1SX with an old Polaroid SprintScan 4000, SCSI-2 film scanner and latest release of Vuescan.
After SL installation the scanner wasn't found by Vuescan. No kexts are required to make it work, but for installation, the FR1SX needs to be configured using a utility provided by Ratoc.
I reran the Ratoc FR1SX config utility with the scanner powered on: requires two reboots, one to enable the FR1SX config utility and set FR1SX SCSI parameters, and the second to disable the config utilty and enable Firewire-to-SCSI converter function.
For this scanner I use 10MB/s, and SCSI init/reset delays of 1, 2, and 4 seconds (params top to bottom respectively).
After second reboot, Vuescan started and I happily heard the scanner initialize. Slide scanning then proceeded in the ponderous, whirring, stuttering fashion typical of this aged, but very effective film scanner.