David Hansen wrote:
On Mon, 19 May 2008 11:16:14 +0100 someone who may be The Natural
Philosopher wrote this:-

A distance of say 40m in a straight line between buildings is not
good for connecting by copper data cables, for the reasons others
have given. There are precautions which can be taken, but these add
to the cost.

Gosh: you had better tell BT that, since most of the country is fed by
copper cables in excess of a kilometer long.

Gosh: I never knew that [1].

See my last thirteen words. I will expand on my last thirteen words
by saying that one of the items included in a telephone master
socket is a surge arrestor which adds (a little) to the cost
compared to a secondary socket. The reason this is included is as a
precaution against one of the things others mentioned by other
people.

Nice try, but you have made a fool of yourself again. Whether you
want to continue to do so is up to you.



[1] note for the stupid, there is a fair degree of sarcasm in those
words.

Overhead phone lines use a GDT at each end. The cost of adding
one is trivial, and theyre widely available (remove from a phone
socket). The cost of a cut price version (a spark gap) is zero.


NT