[rescue] FFS: SCSI cable & 3Com LAN Modem

Peter Corlett abuse at cabal.org.uk
Mon Oct 29 06:02:51 CDT 2007

On Sat, Oct 27, 2007 at 10:47:30AM -0400, der Mouse wrote:
> If it really is approx-25-pins on the Centronics end, I'd suspect it of
> being a parallel-port printer cable, which were very common back before
> USB was invented and "everybody" drunk its kool-aid. (DB25 SCSI does
> exist, perhaps most notably on some models of Macintosh, but it never
> worked all that well - it requires lumping all, or almost all, the grounds
> together, which plays hob with the nice transmission-line characteristics
> of SCSI as designed. Not recommended.)

In a sop to compatibility with something else in the world, SCSI cards for
the Amiga used the Mac-style DB25 connector. I can't say I noticed any
actual problems with it even with multiple external devices hanging off the

I don't think I ever saw such a card that spoke anything other than
lowest-common-denominator SCSI though. I was generally lucky to see 2MB/s.

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