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Date:      Thu, 15 Jan 1998 13:39:09 -0500 (EST)
From:      Brian Ristuccia <brianr@osiris.ml.org>
To:        "Daniel M. Eischen" <deischen@iworks.InterWorks.org>
Cc:        aic7xxx@FreeBSD.ORG, roman@freebee.tu-graz.ac.at
Subject:   Re: Linux AHA-2940AU & Zip Plus problem (2.1.78)
Message-ID:  <Pine.LNX.3.96.980115133728.10820A-100000@osiris.ml.org>
In-Reply-To: <199801151818.MAA23087@iworks.InterWorks.org>

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On Thu, 15 Jan 1998, Daniel M. Eischen wrote:

> 
> > My hardware is
> ?>         i586
> >         AHA-2940AU (Only extern devices, therefore manual termination enabled)
> >         HP Scanjet 4p
> >         Iomega Zip Plus Drive
> 
> Most likely a cabling/termination problem.  Get an active
> terminator for your chain and make sure you've got
> good quality cables.  You've got two devices that
> seem to have a history of having bad termination
> (scanners and Zip drives).
> 

Try putting your scanner at the end of the chain, and using a real
terminator (not the built in one). This is the only way I could get my bus
working w/ the scanjet attached.

I think the scanjet's have some sort of coin-flipping mechanism in them to
decide whether or not to terminate the bus... A real terminator makes this
problem go away :)

-Brian Ristuccia
 brianr@osiris.ml.org
 bristucc@baynetworks.com
 bristucc@cs.uml.edu




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