Re: once more on the aha152x problem

Wolfgang Goeller (wgoeller@active.ch)
Tue, 06 Jul 1999 09:56:15 +0200

"Brian B." wrote:

> my question now lies in the "synchronous=disabled" there is a jumper the card
> to enable/disable synchronous negotiation, but no matter how I set the jumper I
> still get "synchronous=disabled" in the boot mesg.

Your scanning-problems are in now way affilated with synchronous-options.
synchronous is only important, if you have several devices connected to
your card. So in your case this option is not useable/used.

> Could this be some of my problem? I really am new with scsi so I really dont
> know much about it. And what about termination. Is there more I need to buy
> other than my card scanner and cable?

Your scanner is - unless otherwise in the manuals stated - equipped with
SCSI-termination. Your Adaptec-card is by default equipped with little
inline-resistors (2 or three rows). Again: That's correct for you.

To be more general: You need on both ends of the SCSI-BUS termination.

T=Terminated; U=Unterminated; D=Device (Scanner/HD/CDROM...); A=SCSI-Adapter

TA----UD----UD---TD or in case of internal and external Devices:
TD----UD---UD---UD---UA--UD---UD---TD.
Your case is the most simple case: TA-----TD

Note that this cabeling-scheme is independent of the SCSI-IDs of the devices.

Regards
Wolfgang

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