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Article #31Re: SEAGATE ST15150ND Barracuda...Is this a Differential??
From: Matt Stoner
Date: Sun, 21 Apr 1996 04:38
Date: Sun, 21 Apr 1996 04:38
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> Differential SCSI uses differential line drivers - contrary to the > "normal" single-ended (SE) drivers. > > Advantage: 25 m maximum bus length (6 m for SE, 3 m for FAST-SE). > Less trouble with poor cables. The longer bus comes in handy when > you need lots of devices (Wide SCSI supports to 16...). > > -- > Ralf. As I understand it, the differential doesn't have a ground line. It uses a fixed, non-zero voltage for both ends, reducing the effects of induced voltage on the operation of the SCSI bus. Matt
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Path: arc1-ca.pugleaf.net!legba.synergy.net!usenet From: Matt Stoner <mlstone@nppd.com> Newsgroups: demon.tech.pc,comp.periphs.scsi,comp.periphs Subject: Re: SEAGATE ST15150ND Barracuda...Is this a Differential?? Date: Sat, 20 Apr 1996 21:38:17 -0700 Organization: Nebraska Public Power District Message-ID: <3179BBB9.4249@nppd.com> References: <829083915snz@longley.demon.co.uk> <829091313snz@longley.demon.co.uk> <316B23B9.313C@cris.com> <31748175.5059017@news.cris.com> <4l59b5$o51@neptun.DVS-Hannover> NNTP-Posting-Host: cgohpx02.nppdnet.com Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Mailer: Mozilla 2.0 (Win16; I)