"Bill Kearney" <wkearney99@hotmail.com> wrote in message
news:B6mdncUIA9sY-granZ2dnUVZ_vKunZ2d@speakeasy.net...
> As Jeff points out you can 'abuse' the distances but need to make sure to
> manually lock the port configuration. And have equipment that can
actually
> be configured to do this, many cheapie switches will not. To say nothing
of
> crappy drivers on various PC network cards. Know what your gear can and
> can't do reliably.
>
> > Note that the 100meter limit is between switches. You can add as many
> > ethernet switches as needed along the line to deal with regenerating
> > the signal. I've done 1500ft that way with 3 switches between
> > endpoints.
>
> I was a bit suprised to see the old 3-4-5 rule has less applicability
> (none?) with switches. I'd still want to avoid stringing things along
> through too many devices, if just to avoid debugging nightmares. But a
> typical residential setting (or even a small office) isn't likely to run
> into things like arp cache overflows and the like.
>
> > Sigh. We don't get much lightning in California, but the few
> > lightning bolts that hit a local tower managed to blow up most of my
> > media converters. Fiber works much better.
>
> At least the damage stopped there, not followed along the wire and to the
> computers themselves.

1) I seem to remember a 1500 ft. limit for 10Mb. - not certain if that's
10BaseT or 10base2.

2) For underground, one can always run it inside a buried metal pipe.
Theoretically, the pipe will isolate all static electricity (including
lightening) to its outside. Note that this is for METAL pipe, so don't use
ABS or PVC and think the same thing. 1/2" galvanized water pipe will do.