[TAG] Wiring a house with ethernet
jimregan at o2.ie
Thu Oct 13 14:00:18 MSD 2005
Rick Moen wrote:
> Quoting Jason Creighton (jcreigh at gmail.com):
>>Non-Linux hardware question here regarding wiring a new house with for
>>ethernet with Cat5e cable, which I've never done before, so I'm trying
>>to be paranoid about it so I don't get anything wrong.
> If you haven't yet bought your 1000' spool, go ahead and spring for
> Cat6, instead. One of the most common judgement errors in cabling a
> location is to save a minuscule amount of money buying for today's
> standard, instead of the standard of five years from now. Even really
> good cable costs very little, especially compared with the cost of
> re-doing it.
> Another common judgement error is to pull only as many cable runs as you
> need. Smarter is to run about four times as many cables as you need to
> each location. You do it once, four are about as easy to pull as one,
> and (again) cable is really quite cheap.
If I was to cable a building tomorrow, I'd buy a lot of coloured tape,
and colour-code each cable every foot or two. I once had to recable a
place after rats chewed through some of the cables -- it would have been
nice to have been able to tell at a glance which cables had to be
replaced, rather than having to check each of them.
>>Can you run the ethernet cables in the same holes where you've got Romex
>>carrying AC, or is there too much interference?
> 1. You have _Romex_ runs? I hope those are within the AC boxes only,
> or within grounded metal conduits, or my guess is that you're very much
> out fo compliance with building code. ;->
> 2. You can run the _ends_ of your ethernet cable close to AC components
> without harm, but always keep the runs _proper_ far away from AC (other
> than AC contained within grounded conduit).
Among the many other jobs my father had, he was an electrician at least
twice (first, working for the Irish PTT; second, a 'home' electrician);
his advice to me was to stay as far away from any cables carrying AC as
possible, because you can never tell what someone else thought was a
Then again, there's another America/Britain difference: 110 vs 220. (I
remember hearing a long lecture about that when I was 6 -- MacGuyver had
just used an exposed cable to give a heart massage.)
>>How about with the Cat5 you've got carrying telephone service? Heck,
>>what about *other* ethernet cables?
> I've never heard of problems from either of those situations.
A former supervisor of mine once had 2 RJ11s and an RJ45 on the same
cable, so I wouldn't think so.
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