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Re: filmscanners: Any experience with Vuescan/Linux/SS4000/Adaptec 29160?
2001-10-16-14:07:08 Tom Scales:
> First, I think using the separate SCSI card is an excellent idea.
That I'll definitely try. Hope the freebie Advansys card is supported
and gets on well with others.
> Second, before you do that, try setting the termination on the
> scanner to off, rather than on. I thought you only terminated one
> connection (internal or external) and you internal one is
> terminated.
That *shouldn't* be correct. A SCSI bus should be linear, and be
terminated at (and only at) both ends. This is complicated in this
case by the wide-to-narrow transition before the bus leaves the box,
and the presence of the host adapter in the middle, and the LVD<->SE
electrical change, but schematically, the simplified version should be
like this:
inside | outside
internal internal devices... host adapter | scanner external
term-----------+-----+----------(host ad term off)+------------+-----term
...except in this case the wide half of the bus, but not the narrow,
should be terminated on the host adapter.
Yep, I'm more and more enthusiastic about a whole separate bus.
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