Date: Mon, 28 Sep 1998 10:48:55 -0600 From: "Justin T. Gibbs" <gibbs@plutotech.com> To: Steve Passe <smp@csn.net> Cc: "Justin T. Gibbs" <gibbs@plutotech.com>, scsi@FreeBSD.ORG Subject: Re: p2b scsi termination Message-ID: <199809281655.KAA04923@pluto.plutotech.com> In-Reply-To: Your message of "Mon, 28 Sep 1998 10:45:22 MDT." <199809281645.KAA12178@Ilsa.StevesCafe.com>
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>Justin, > >> > 1: the manual states: "The 68-pin WIDE SCSI connectoris always terminated >> > and will only work as an end device" >> > is that really true? >> >> yes. >> >> ... >> >> > 3: Am I correct in believing that the uw bus and narrow bus are >> > effectively ONE SCSI bus, with the hi 8-bits left off one half? >> >> Yup. > >perhaps I havn't had enough coffe yet this morning, but these 2 statements >seem to conflict. IF the WIDE SCSI MUST be an end device then my statement >about devices on both the WIDE and NARROW busses wouldn't work. It must be the end of the wide chain. You cannot have the adapter port in the middle of a wide cable as it will always terminate the high byte of the bus. It may also terminate the low byte depending on the settings in the BIOS. >Are they >trying to say that "the HIGH byte of the WIDE bus is always terminated" >and thus you couldn't put the MB connector in the middle of a WIDE cable >(assumming you didn't use the NARROW cable at all)? Exactly. >-- >Steve Passe | powered by >smp@csn.net | Symmetric MultiProcessor FreeBSD -- Justin To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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