Subject: Re: various scsi questions
To: Peter Seebach <>
From: Bill Studenmund <>
List: current-users
Date: 02/08/2000 13:29:03
On Tue, 8 Feb 2000, Peter Seebach wrote:

> In message <>, Manuel Bouyer writes:
> >1) what is really ultra2wide scsi (the one at 80MB/s) ? does it uses the same
> >  cables as Ultrawide ?  Can I mix ultra2wide and Ultrawide on the same bus ?
> >  (I've never looked at ultra2wide scsi devices yet :)
> U2W is most often (always?) found as "LVD", an electrically different kind of
> 68-pin cable.  Not the same cable, not compatible.  All the devices I've seen
> so far can be jumpered to go back to being plain ultra-wide.


I was under the impression that LVD devices used the same 68-pin cables as
all other wide devices. Also, they auto-sense the voltages on the bus. If
everything is low voltage, they do LVD. Otherwise, they do single-ended
wide SCSI.

Take care,