Amiga 1000 / 500 PC SCSI controller Adapter (REX Festplatte Am Amiga)

[Violo]

Hi,
i've found this bizarre board with an Amiga 1000.

I had no idea of his purpose but thanks to Google I've found a reference on BBAH:

Festplatte Am Amiga - REX Datentechnik

Big Book of Amiga Hardware - Probably the largest Amiga hardware reference on the net!

bigbookofamigahardware.com

The questions are:
- does anybody own the user guide to help me use the on-board switch configuration?
- does anybody know what kind of PC controllers are compatible with this adapter?


Thanks for any suggestion