[AusNOG] Cable length limits?

[Joshua D'Alton]

Over 90m a change to say 40c would actually lengthen the cable by about 2%,
so a couple meters, probably not a whole lot, but could be borderline. Most
of the results should be from those trying to flog higher priced but same
performing cables, nothing new there. If there were to be issues, it would
be due to being so close to normal cat5e/6 limits, not temperature
differences. As in, you shouldn't run it that close to spec in the first
place.


On Tue, Mar 4, 2014 at 9:52 PM, Paul Gear <ausnog at libertysys.com.au> wrote:

> Hi all,
>
> I'm working on a project involving a new facility being built in
> Townsville.  A consultant on the project mentioned to me today that he had
> heard some discussions which suggested that the maximum distance of 90m on
> a Cat5e/Cat6 run applies to environments where the ambient temperature is
> around 20 degrees, and that higher temperatures can actually require lower
> length limits.
>
> Can anyone confirm or deny, and/or point to some relevant references?
>  Google seems to have some relevant hits, but discerning the wheat from the
> chaff is tricky - many of the first few hits for the searches I did were
> from companies trying to sell higher grade cabling.
>
> Thanks in advance,
> Paul
>
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