[6008] in linux-scsi channel archive
Re: problems adding external JAZ (2GB) to Symbios 8751SP (53C825)
daemon@ATHENA.MIT.EDU (lma@varesearch.com)
Mon Mar 1 19:09:10 1999
From: <lma@varesearch.com>
Date: Mon, 1 Mar 1999 15:55:22 -0800 (PST)
To: Pete Flugstad <pete_flugstad@icon-labs.com>
Cc: linux-scsi@vger.rutgers.edu,
Richard Waltham <dormouse@farsrobt.demon.co.uk>
In-Reply-To: <36DB01F5.D17B859F@icon-labs.com>
Yes, this sounds correct. Send me your mailing address and I'll send
you the 68 to 50 pin adapter we use.
I'm a bit surprised that the cable from Symbios didn't fix the
problem. Perhaps there's some problem other than termination going on
here?
Larry
Pete Flugstad writes:
> lma@varesearch.com wrote:
> >
> > There are multiple kinds of 68-50 pin adapters. The external 68-50
> > pin adapter you need must terminate the upper bits on the SCSI bus.
> > Most 68 to 50 adapter cables simply leave the unused wires unconnected.
> > (Your internal 68-50 pin adapters probably do this.)
>
> So, I need to make sure that my external connector terminates the wide
> part of the bus correctly. Where can I get one of these cables/adaptors?
> I've already spent $25 on a cheap 68-50 pin cable, another $50 on
> another one that Symbios said would probably fix the problem. How
> can I be sure of getting a "good" one.
>
> Internally, I do NOT want the 68-50 pin adaptors to terminate the
> wide part, as I do have a wide device on the bus. Right? That's
> what I have now (I think), so that explains why everything works
> until I connect something to the external connector.
>
> Does this sound correct?
>
> Pete
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