[wplug] Cat5 wiring between buildings

DK wplug at curlynoodle.com
Mon May 25 17:38:38 EDT 2009


I agree with Russ, you may want to consider running fiber rather than
CAT5.  A point-to-point wireless bridge is another idea.

If you still want to keep using the CAT5, see
http://www.provantage.com/tripp-lite-dnet1~7TRPS00J.htm for a surge
suppressor.

Dave



On Mon, May 25, 2009 at 4:07 PM, Eric Cooper <ecc at cmu.edu> wrote:
> I have Ethernet switches in 2 buildings connected by a long run of
> Cat5 cable, running through a buried conduit.  Normally this has been
> working fine, but after yesterday's thunderstorm I found that the
> switch port on one end of this connection had been fried.  (The rest
> of that switch was fine, as was the one on the other end of the link.)
> I've had one other switch completely fail after a storm, too.
>
> So, for any of you EEs out there: am I right in assuming that the long
> run of cable picked up a voltage spike during the storm?  If so, is
> there any kind of isolation or lightning protection I can use on the
> inter-building link that won't cost more than simply replacing the
> switch every couple of years?
>
> --
> Eric Cooper             e c c @ c m u . e d u
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