The telephone extension wiring here appears to be a bit odd. One of the extensions, with the wire buried in plaster, died recently - I suspect it got wet with the recent flooding, and we started getting noise on the line. It's currently been disconnected from the master, and the line is all nice and clear at the moment, phones connected elsewhere happily ringing away. I was going to put another wire in, which would be a simple enough process. Except when I've pulled off the faceplate (genuine BT extension plate, not the master socket type with the removable front), I've discovered it's got the capacitor, resistor and surge protector of a master socket. I'm now wondering if I should : a) Just wire it in with pins 2,3,4,5 as normal and not worry b) Get a plain faceplate c) Modify this one by disconnecting the various components leaving just pins 2+5 connected. Any thoughts? (ADSL is filtered off at the master socket with a faceplate - can't be doing with having individual filters for each phone and the potential for any dodgy extension wiring to screw up the broadband)

it doesn't matter if you have a master faceplate used as a secondary, either way works fine Usually cable is ok after flood, it's waterproof after all, except the ends which may need a clean & reconnect. NT

Telephone extension - two ringing caps?

Jan 31, 2016 23 Replies

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tabbypurr 10 years ago

no :) Cleaning & rewiring both take time.

it doesn't. I'm excluding co-ax here.

You don't get corrosion in dry cables. You get dry cables quickly by heating them - if they're in ducts that can be done with current.

total makework

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Blanco 10 years ago

Bet that was because customers would demand the stuff that didn't get wet just because they could and the insurance would cover it all, rather than bother to decide what was fine and what wasn't.

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Clive George 10 years ago

I think I have remembered why my phone cable might not be waterproof. The patter of little tiny feet in that boxed pipe run containing the cable is a clue...

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tabbypurr 10 years ago

If they had mice chewing through cables they'd surely do something about it quickly, they're destructive little buggers. And in a large corporate install take preventive measures.

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