RE: Re: RJ45 CAT5e plugs

["Martin" <ukha@xxxxxxx>]

amongst many things do not untwist the pairs by more than 13mm this will
help achieve performance. If you've used the correct ends, normally the
same manufacturer at each end, patch panel and outlet, this forms the
basis of your cat5 or cat5e circuit. The patch lead is a relatively
short link in the circuit and if made in up following the correct pairs
rarely causes any problems.

Cheers
Martin

PS A good crimp tool is essential - one that crimps at right angles to
the plug.

-----Original Message-----
From: mark_harrison_uk2 [mailto:mph@xxxxxxx]
Sent: 12 March 2003 21:53
To: ukha_d@xxxxxxx
Subject: [ukha_d] Re: RJ45 CAT5e plugs


Well, CAT5e and CAT5 specify a MINIMUM set of standards, therefore a
well-made CAT5 (not e) cable MIGHT be OK if it's actually made "well
in excess".

It does make a difference, but only really once you get to gigabit
ethernet (and the faster ATM speeds.)

At 100Mb/sec you should be OK with CAT5 most of the time.

The biggest issue, AIUI, is interference on the _untwisted_ part of
the cables where the noise rejection can't happen. This untwisted
part is unfeasibly small for full CAT5e certification (like, you
won't believe how little slack you're allowed - hint: use a good
quality crimping tool.)

Regards,

Mark

--- In ukha_d@xxxxxxx, "Stuart Worrall" <stuart@s...>
wrote:
> Yup, the brand is Philex and its got cat5e plastered all over the
> packaging.
>
> Not sure if it really matters with plugs though. Can anyone on the
list
> comment on the standards for cat5e and if it matters for the rj-45
> plugs??
>



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