From owner-freebsd-scsi  Sat Jun  7 10:23:14 1997
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From: "Rodney W. Grimes" <rgrimes@GndRsh.aac.dev.com>
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Subject: Re: 3940uw with long cables
In-Reply-To: <199706070047.SAA07204@pluto.plutotech.com> from "Justin T. Gibbs" at "Jun 6, 97 07:45:54 pm"
To: gibbs@plutotech.com (Justin T. Gibbs)
Date: Sat, 7 Jun 1997 10:22:47 -0700 (PDT)
Cc: asami@cs.berkeley.edu, scsi@FreeBSD.ORG
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Someone PLEASE PLEASE PLEASE put this in the handbook!!!

> >Is this something that can be only cured by somehow shortening the
> >cables?
> 
> Perhaps.  There are a few important things to keep in mind when
> tuning the bus length.
> 
> 1) Having equal distances between all devices is sometimes more
>    important than total bus length since the varying RC constants
>    can cause strange signal skew conditions if the lengths aren't
>    matched.

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-- 
Rod Grimes                                      rgrimes@gndrsh.aac.dev.com
Accurate Automation, Inc.                   Reliable computers for FreeBSD