[AusNOG] Cable length limits?

[Jake Anderson]

Media converters can be had pretty cheap these days, I'd be looking in 
to perhaps running those if you are on a budget.
Otherwise put in smaller switches spread about the place with a fibre 
backbone.

Worst case distribute switches and run copper back to base.
Its cheap to add margin to your links now rather than trying to work out 
why 9% of the phones are dickey in 8 months time.

I'm most concerned about lightning with long copper runs, a decent 
strike along the axis  of a long run within a hundred meters or so will 
fry anything connected with the blue string.
(IE switch -----------blue string----------end point>>>>>lightning)


On 04/03/14 21:52, Paul Gear 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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