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Re: Flash

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On Thu, 29 Oct 2015 19:57:38 -0400
Dennis Lee Bieber <wlfraed@ix.netcom.com> wrote:

> On Thu, 29 Oct 2015 10:21:40 +0000, The Natural Philosopher
> <tnp@invalid.invalid> declaimed the following:
> 
> >I've never seen that happen.
> >Poles down yes, wires snapped in half - no. 100 pair cables are dam,ned 
> >tough
> >
> 	Last time I saw a phone cable "fail" it was because somebody dumped hot
> charcoal into the apartment dumpster... Which then ignited and burned
> through the phone cable running above it.
> 
> 	Took a few days to get my phone service straightened out -- they
> probably matched the twisted pairs by color code, but with 4+bundles per
> cable with identical codes there is only a 25% chance that the correct pair
> was linked (we can ignore the first end of the patch, but the other end
> then has four choices for each pair)... The cable was replaced on the first
> day, and then more days were spent putting a signal injector on each pair
> at the building entry panel and going back up the street to the main
> distribution box to see where the signal came out, and swapping with the
> correct pair.

Either someone didn't know what they were doing, or standards have been
abandoned!

Phone cable is built in layers. I can't remember the colours now, but each
layer has a start pair, running pairs and an end pair - that way you know which
direction to go. Each layer is separated from the next by thin plastic tape.
That standard goes right back to the days when underground cable had bare
strands wrapped in coloured paper tape, the layers separated by a spiral of
cotton and the whole lot lead sheathed.

The engineers should be able to join hundreds of pairs without a single mistake.

-- 
W J G

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Flash Wayne Chirnside <frank@fuax.com> - 2015-10-25 22:24 +0000
  Re: Flash Mel Wilson <mwilson@the-wire.com> - 2015-10-25 23:00 +0000
    Re: Flash Roger Bell_West <roger+csrp201510@nospam.firedrake.org> - 2015-10-25 23:04 +0000
      Re: Flash Wayne Chirnside <frank@fuax.com> - 2015-10-25 23:42 +0000
        Re: Flash rickman <gnuarm@gmail.com> - 2015-10-27 22:19 -0400
          Re: Flash Martin Gregorie <martin@address-in-sig.invalid> - 2015-10-28 11:55 +0000
            Re: Flash The Natural Philosopher <tnp@invalid.invalid> - 2015-10-28 12:40 +0000
              Re: Flash rickman <gnuarm@gmail.com> - 2015-10-28 12:26 -0400
                Re: Flash The Natural Philosopher <tnp@invalid.invalid> - 2015-10-28 22:02 +0000
                Re: Flash Roger Bell_West <roger+csrp201510@nospam.firedrake.org> - 2015-10-29 00:43 +0000
                Re: Flash The Natural Philosopher <tnp@invalid.invalid> - 2015-10-29 08:40 +0000
                Re: Flash rickman <gnuarm@gmail.com> - 2015-10-29 04:57 -0400
                Re: Flash The Natural Philosopher <tnp@invalid.invalid> - 2015-10-29 10:18 +0000
                Re: Flash rickman <gnuarm@gmail.com> - 2015-10-29 13:01 -0400
                Re: Flash Tony van der Hoff <tony@vanderhoff.org> - 2015-10-29 18:29 +0000
                Re: Flash Robert Riches <spamtrap42@jacob21819.net> - 2015-10-30 02:58 +0000
                Re: Flash Tony van der Hoff <tony@vanderhoff.org> - 2015-10-30 08:42 +0000
                Re: Flash fruit <fruit@invalid.org.uk> - 2015-10-30 09:39 +0000
                Re: Flash UoScAr <oscar.gooooooooooo@gooooooooogle.it> - 2015-10-30 20:00 +0800
                Re: Flash colonel_hack@yahoo.com - 2015-10-30 09:34 -0700
            Re: Flash rickman <gnuarm@gmail.com> - 2015-10-28 12:26 -0400
            Re: Flash Mark Justice <mark@faux.com> - 2015-10-28 20:41 +0000
              Re: Flash Martin Gregorie <martin@address-in-sig.invalid> - 2015-10-29 01:02 +0000
                Re: Flash The Natural Philosopher <tnp@invalid.invalid> - 2015-10-29 08:43 +0000
                Re: Flash Dom <domafp@blueyonder.co.uk> - 2015-10-29 12:41 +0000
                Re: Flash Rob <nomail@example.com> - 2015-10-29 12:45 +0000
                Re: Flash Tim Hill <tim@invalid.org.uk> - 2015-10-29 13:26 +0000
                Re: Flash Rob Morley <nospam@ntlworld.com> - 2015-10-29 16:12 +0000
                Re: Flash Rob <nomail@example.com> - 2015-10-29 16:54 +0000
                Re: Flash Rob Morley <nospam@ntlworld.com> - 2015-10-29 17:01 +0000
                Re: Flash The Natural Philosopher <tnp@invalid.invalid> - 2015-10-29 12:45 +0000
                Re: Flash Dom <domafp@blueyonder.co.uk> - 2015-10-29 13:46 +0000
                Re: Flash fruit <fruit@invalid.org.uk> - 2015-10-29 14:35 +0000
                Re: Flash Folderol <general@musically.me.uk> - 2015-10-29 13:47 +0000
                Re: Flash The Natural Philosopher <tnp@invalid.invalid> - 2015-10-29 13:50 +0000
                Re: Flash fruit <fruit@invalid.org.uk> - 2015-10-29 14:32 +0000
                Re: Flash - Warning. Even more off topic! Folderol <general@musically.me.uk> - 2015-10-29 15:55 +0000
                Re: Flash - Warning. Even more off topic! "Kerr Mudd-John" <admin@127.0.0.1> - 2015-10-31 13:08 +0000
                Re: Flash alister <alister.nospam.ware@ntlworld.com> - 2015-10-29 15:25 +0000
                Re: Flash rickman <gnuarm@gmail.com> - 2015-10-29 13:18 -0400
                Re: Flash Rob <nomail@example.com> - 2015-10-29 15:26 +0000
                Re: Flash rickman <gnuarm@gmail.com> - 2015-10-29 13:06 -0400
                Re: Flash rickman <gnuarm@gmail.com> - 2015-10-29 05:00 -0400
                Re: Flash The Natural Philosopher <tnp@invalid.invalid> - 2015-10-29 10:21 +0000
                Re: Flash Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-10-29 19:57 -0400
                Re: Flash Folderol <general@musically.me.uk> - 2015-10-30 07:10 +0000
                Re: Flash Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-10-29 19:47 -0400
                Re: Flash Martin Gregorie <martin@address-in-sig.invalid> - 2015-10-30 12:13 +0000
            Re: Flash Wayne Chirnside <frank@fuax.com> - 2015-10-29 17:20 +0000
            Re: Flash Morten Reistad <first@last.name.invalid> - 2015-10-29 19:50 +0100
              Re: Flash druck <news@druck.org.uk> - 2015-10-29 23:42 +0000
                Re: Flash Ahem A Rivet's Shot <steveo@eircom.net> - 2015-10-30 10:12 +0000
                Re: Flash Robert Riches <spamtrap42@jacob21819.net> - 2015-10-31 00:33 +0000
                Re: Flash Dr J R Stockton <reply1500@merlyn.demon.co.uk.invalid> - 2015-10-30 22:45 +0000
  Re: Flash "M.O.B. i L." <mobil@orbin.se> - 2015-10-26 19:35 +0100
    Re: Flash Wayne Chirnside <frank@fuax.com> - 2015-10-27 23:20 +0000
      Re: Flash druck <news@druck.org.uk> - 2015-10-28 01:56 +0000
        Re: Flash rickman <gnuarm@gmail.com> - 2015-10-27 22:20 -0400
        Re: Flash Chris <c@b.a> - 2015-10-28 13:52 +1100
        Re: Flash Rob Morley <nospam@ntlworld.com> - 2015-10-28 05:01 +0000
          Re: Flash Folderol <general@musically.me.uk> - 2015-10-28 09:26 +0000

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