Date: Fri, 21 Nov 1997 19:43:39 +0100 (MET) From: Wilko Bulte <wilko@yedi.iaf.nl> To: obrien@NUXI.com Cc: luomat@peak.org, freebsd-scsi@FreeBSD.ORG Subject: Re: SCSI chain problems (probably me) Message-ID: <199711211843.TAA02907@yedi.iaf.nl> In-Reply-To: <19971120215226.20748@relay.nuxi.com> from "David E. O'Brien" at Nov 20, 97 09:52:26 pm
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As David E. O'Brien wrote... > > > So your choices are DB-50, Centronics-50, Mini-50 (is there a more proper > > > term for this one?), etc. Mini 50 is also called the 'high density' connector, or the 'Honda' connector (after a vendor). > > Well it's not entirely meaningless, since I have ordered cables and gotten > > them by using that reference. Could be they just knew what I was talking > > about even if it wasn't technically correct (or what most people wanted > > Not to arguing, but this is from the SCSI FAQ: > > In an extensive survey of cables available in the US and Europe, we > found that more than half of the cables available have single-ended > impedances in the 65 to 80 Ohm range -- below the 90 to 132 Ohms > specified in the SCSI-2 spec. It seems that some (not all) cable > vendors do not understand the specification, describing their cables They probably understand them but opt for el-cheapo cable instead to get higher margins.. :( > as SCSI-2 compliant when they are not. A common misconception is that > SCSI-2 means a high-density connector. In fact, there are several > connector options. _ ______________________________________________________________________ | / o / / _ Bulte email: wilko@yedi.iaf.nl http://www.tcja.nl/~wilko |/|/ / / /( (_) Arnhem, The Netherlands - Do, or do not. There is no 'try' ---------------- Support your local daemons: run [Free,Net]BSD Unix --Yoda
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