Date: Fri, 30 Jun 2000 07:34:58 -0700 (PDT) From: Jamie Bowden <ragnar@sysabend.org> To: Shawn Barnhart <swb@grasslake.net> Cc: freebsd-hardware@FreeBSD.ORG Subject: Re: RJ45 Message-ID: <Pine.BSF.4.10.10006300730130.559-100000@moo.sysabend.org> In-Reply-To: <005801bfe18f$3f805090$0102a8c0@k6>
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On Thu, 29 Jun 2000, Shawn Barnhart wrote: :EIA568B Color codes (1-8): :White Orange :Orange :White Green :Blue :White Blue :Green :White Brown :Brown I use the above for all my cables. :Bandwidth-wasting trivia questions: :What purpose does the thousands (millions?) of miles of basically unused :copper connecting pins 4, 5, 7 & 8 in CAT-5 cables throughout the world :serve? Does it provide extra mojo for the signal? IEEE has stock :options in the copper mining industry? Overly optimistic gigabit :upgrade planning? The Cat-5 standard was the closest thing to carrying a :100Mhz signal on four wires and the others were just part of the cabling :spec unrelated to the 100baseT ethernet spec? You're looking at it from the wrong perspective. All this crap came out of telcos originally. Imagine an RJ-12 connector. Add a fourth pair. Jamie Bowden -- "Of course, that's sort of like asking how other than Marketing, Microsoft is different from any other software company..." Kenneth G. Cavness To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message
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