How to tell differential scsi drives and cards apart

[Dave McGuire]

You wrote:
> The HVD bus is designed such that if you plug it into a SE bus it will
> go into reset and go passive.  There is a signal DIFFSNS on the HVD  
> that
> will disable the bus.  Not good, but better than nothing if you  
> mess up
> and plug them together.

   DIFFSENS is a nice idea, but some drives don't implement it.  I've  
had differential drives go up in smoke because of this.  Granted this  
was a long time ago (1993) and the drives were small (600MB?), so  
this was more in the days of creative interpretation of the SCSI  
standard.

            -Dave

-- 
Dave McGuire
Port Charlotte, FL