Re: Network Cabling

[KoReE <koree@ameth.org>]

I was actually talking about the color of the cable....not the pinout :D
I know how to crimp 'em/punch 'em down :D  Thanks, though.

Koree

______________________________________________
Koree A. Smith  | Co-Administrator, ameth.org
koree@Ameth.org | http://www.koree.net/
koree@koree.net | Linux Rules!
NT < *IX        | I Corinthians 2:1-5

Nous pensons que Linux représente à terme une menace pour Windows.


On Sat, 19 Aug 2000, Tim Gimmel wrote:

> Yep, thars meaning in the madness.  It comes from the telephone Industy.  In a 25 pair cable there
> are 5 groups of 5 colors: blue, orange, green, brown, slate, and 5 'tracer' colors: white, red,
> black, yellow and violet.  white/blue is the first wire which is tip and blue/white is ring, w/o is
> tip, o/w is ring.  This pattern repeats through all the colors.  Then if you have 100 pairs in a
> cable, each group of 25 will have 2 ribbons, a white/blue ribbon and a white/orange ribbon.  This
> repeats with all the groups of 25 pair bundles.
> 
> So.  In your average eth cable there are 4 pairs, w/b b/w, w/o o/w, w/g g/w, w/b b/w. If you look
> at your cat5 cable thats the colors in the cable.  Now..
> 
> pins 1 and 2 white blue PAIR
> Pins 3 and 6 white green PAIR
> pins 4 and 5 white orange PAIR
> pins 7 and 8 white brown PAIR
> 
> (In ethernet pins 1,2 and 3,6 are the trasmits and receives, I can't remember which is which)
> This is a 'straight' cable, PC to Hub, but for a cable going from hub to hub you need to reverse
> the w/b pair and the w/g pair on ONE end, this is a crossover cable.
> 
> The key to all this is the word "PAIR".  If you just randomly pick wires you might split pairs. 
> This isn't a problem is the cable is only a couple of feet long.  But if its 200 ft long and
> running 100mb you can forget it!  You need the balance of twisted pairs.
> 
> Sorry for the long winded answer.
> 
> Tim
> 
> 
> KoReE <koree@ameth.org> wrote:
> > I've never really used any standard cabling color coding.  I've been
> > curious if there is a standard of some sort for this.  For example if a
> > crossover patch cable has a certain standardized color, etc.  This may
> > sound lame, but I'm just deciding if I'm going to use such a system.  Up
> > until now, I've used gray cable and labels because they actually say what
> > the cable is and how it's wired :D
> > 
> > Koree
> > 
> > ______________________________________________
> > Koree A. Smith  | Co-Administrator, ameth.org
> > koree@Ameth.org | http://www.koree.net/
> > koree@koree.net | Linux Rules!
> > NT < *IX        | I Corinthians 2:1-5
> > 
> > Nous pensons que Linux représente à terme une menace pour Windows.
> > 
> > 
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