Date: Wed, 28 Jun 2000 14:59:11 -0400 From: steinyv <steinyv@skyweb.net> To: freebsd-hardware@freebsd.org Subject: Re: SCSI Message-ID: <4.2.0.58.20000628145800.009e8b80@> In-Reply-To: <Pine.BSF.4.05.10006281008400.27226-100000@semuta.feral.com > References: <4.2.0.58.20000628124941.009ad100@>
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I have some regular scsi hard drives and cdrom, could I use these with a differential controller?? Thanks for your input At 01:12 PM 6/28/00 , you wrote: >It's a signal level issue, not a performance issue. Rather than TTL -5v to 0v >at 40ma, it's +5/-5 (IIRC) with micro-electric chair amperage. > >The only practical effect of using differential is you can run a *much* longer >cable. > >Do *not* mix non-differential or differential devices. Devices have gotten >more resilient, but you could certainly fry things that way. > >Note that LVD (low voltage differential) is a different thing entirely. >I won't go into that- check any one of the HBA or Drive vendor's websites- >you'll find overviews of that there (or see http://www.ultra160-scsi.com >for Ultra3). > >On Wed, 28 Jun 2000, steinyv wrote: > > > Please excuse me, but does a differential scsi card differ from a regular > > one, in what way? Could I use them with FBSD? What should I look out for? > > Thank You gurus > > :) > > > > _________________________________________ > > Steiny's Studio > > Pachyderm Productions > > http://steiny.hypermart.net > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > with "unsubscribe freebsd-hardware" in the body of the message > > _________________________________________ Steiny's Studio Pachyderm Productions http://steiny.hypermart.net To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message
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