[1802] in linux-scsi channel archive
Re: 2940UW & scanjet
daemon@ATHENA.MIT.EDU (Robert Maiale)
Sat May 3 16:45:30 1997
Date: Sat, 03 May 1997 16:41:37 -0400
From: Robert Maiale <root@acropolis.wsc.mass.edu>
To: Andy Poling <andy@realbig.com>
CC: Brian Craft <bcboy@dorothy.wanglab.brandeis.edu>,
linux-scsi@vger.rutgers.edu
Andy Poling wrote:
>
> On Fri, 2 May 1997, Brian Craft wrote:
> > Hi. Just got a ScanJet, which comes with that wacky little scsi board that
> > everyone's been talking about. My machine has a 2940UW, but I notice in the
> > documentation it doesn't say anything about connecting external 8 bit devices.
> >
> > There's an internal 50 pin port, but no external 50 pin port. Is there no way
> > to connect 8 bit devices externally?
>
> It is my understanding that the internal 50-pin port is only there for
> backward compatibility with CDROMs etc. that don't commonly grok wide SCSI.
>
> You could run a cable from the 50-pin port to a plate in the back panel, but
> bear in mind that you *must* not use all three ports on the controller
> simultaneously - you're only allowed to use a maximum of two ports at once.
>
> Another "solution" (most would classify it a hack) is to use one of those
> little wide-to-narrow adapter thingies. Be careful with it though, as you
> can end up with the high 8 bits of your wide bus unterminated. Also those
> adapters tend to look like a tee fitting which is a major-league no-no.
>
Check out the adaptec site as well!
http://www.adaptec.com/cables/index.html
