From owner-freebsd-hardware Fri Jun 30 7:31:59 2000 Delivered-To: freebsd-hardware@freebsd.org Received: from moo.sysabend.org (moo.sysabend.org [209.0.55.68]) by hub.freebsd.org (Postfix) with ESMTP id DDC9A37BB29 for ; Fri, 30 Jun 2000 07:31:53 -0700 (PDT) (envelope-from ragnar@sysabend.org) Received: by moo.sysabend.org (Postfix, from userid 1004) id 760C675B3; Fri, 30 Jun 2000 07:34:58 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by moo.sysabend.org (Postfix) with ESMTP id 690EE1DA9; Fri, 30 Jun 2000 07:34:58 -0700 (PDT) Date: Fri, 30 Jun 2000 07:34:58 -0700 (PDT) From: Jamie Bowden To: Shawn Barnhart Cc: freebsd-hardware@FreeBSD.ORG Subject: Re: RJ45 In-Reply-To: <005801bfe18f$3f805090$0102a8c0@k6> Message-ID: Approved: yep X-representing: Only myself. X-badge: We don't need no stinking badges. X-obligatory-profanity: Fuck X-moo: Moo. MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hardware@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org 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