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Posted by aemeijers on September 28, 2008, 7:52 pm
Naval Squid wrote:
> I plan on installing a new telephone demarcation box on the inside wall of
> my garage near where 2 pairs of wires come out of a conduit. The existing
> demarc box is old, ugly, and accessible from the outside where it could
> easily be opened and the wires cut. I'm thinking in terms of greater home
> security and better DSL performance.
>
> While I can isolate the house wiring from the live wires via unplugging an
> RJ11 disconnect, I will have to first move the live telephone pair from the
> old demarc to the new demarc. Is it enough to carefully use a pair of
> insulated pliers to move and connect a wire over without causing all sorts
> of havoc at the central office? Many years ago I performed a similar
> procedure by moving a jack. When I was through the telephone immediately
> rang. When I answered it was Bell Telephone saying they detected a fault on
> my line because an indicator "popped up". I'm thinking I may have
> accidentally shorted the wires. I told the woman on the phone that
> everything on my end was normal (this was back in the days when the phone
> company owned everything, including the telephone and jacks).
>
> The only other and perhaps safer way to do this is to first connect a new
> pair of telephone copper wire to the new demarc and then crimp and join the
> wire to the live pair coming out of the conduit. Is that how the pros do
> it? The only thing with this is that I'd need to find the correct crimp
> connectors. I think the telephone company uses the kind where you insert
> both wires unstripped and then squeeze down to cut the insulation and make
> the connection. I'm trying to avoid using crimp connectors though and would
> prefer to connect directly to the new demarc terminals. With each crimp
> connector comes the risk of an imperfect electrical contact with degraded
> voice and DSL performance.
>
Nobody else said it, so I will- in many areas, you do not own the demarc
box, and your telco will take a dim view of you moving/replacing it
without talking to them first, especially if you have to extend the drop
wires, which they do own. Not to mention, if they come out on a service
call, you will need to be home. The whole idea of the 2-side demarc box
was to provide a semi-secure outside box that their techs could get to
any time. They may come back and replace your butt splice with a new
demarc box, and charge you for it. You will have to run the ground wire
back outside to the same attachment point in any case.
If you truly have security concerns (like a neighborhood with lots of
breakins), I'd call and talk to them about armoring the drop in conduit
where it is within reach of the ground (unless you already have buried
service), and swapping the box out for a metal one with a security screw
or lock. They are used to that for light commercial work.
Unless your box is full of bugs and corrosion, it is unlikely to make
any difference in your DSL connection. A straight run from the demarc
box to your DSL modem, bypassing the rest of the inside wiring, is much
more likely to help.
--
aem sends...
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