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68 posts

Master Geek

Topic # 7398 12-Apr-2006 09:19
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I was wondering if someone could please help!! - I am trying to repair an old telephone jack point so that I can use it to plug in my ASDL - however the wiring is a bit different from other telephone jack points that I have connected.  This one has 3 wires - 1 green, 1 blue and 1 wire that is connected in a loop (colours are red - yellow and black, all joined with these little clear connector thingys??).  The loop wire was connected to the broken jack point - and broke when I pulled it out (if this wire is not connected together then the other telephones in the house do not work).  The other two wires were not connected, so I don't know where they go.  If someone could please help me with this (where do the wires go in the slots of a new master jackpoint) - then that would be greatly appreciated!!

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Ultimate Geek
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Reply # 32854 12-Apr-2006 09:51
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Working for Service Plus -

Authorised Service Agent for Apple, BenQ, Navman, Sony, and Toshiba - warranty & non-warranty repairs.

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Biddle Corp

Reply # 32855 12-Apr-2006 09:52
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I don't understand your question exactly but if you're trying to install a new additional jackpoint you obviously have an old 3 wire master. Old BT jackpoints used to have a Master socket and then extension sockets, the 3rd wire was an anti tinkle and was generated by the master socket and then ran to each extension. New 2 wire sockets only use the 2 wires throughout the house which should be blue/white & white/blue for the primary line which go to terminals 2 and 5. You should also not use 2 fire sockets in line with an old master socket as it can cause lots of problems, all the sockets need to ideally be replaced with 2 wire ones.


55 posts

Master Geek

Reply # 32868 12-Apr-2006 13:14
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Try - or go back to the archives section of their website and look through other newsletters to find relevant articles - lots of useful info about premises wiring etc.

68 posts

Master Geek

Reply # 32876 12-Apr-2006 15:40
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Thanks - I have already seen that UK telephone website.  To explain my situation further - this is the master jack point - but we didn't use it because it was broken - I think our landlord pulled the cover off as he was going to replace it (the cover had a crack in it) - saw that it was a 3 wire jackpoint and so never reconnected it.  I just need to know which wires go where (the red loop wire, the blue wire and the green wire).  The other phone jacks around the house are 2 wire ones - so don't know if this will cause any issues. - Thanks for your help guys!

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Master Geek

Reply # 32877 12-Apr-2006 15:44
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sbiddle - with regards to replacing this Master socket - the landlord won't forkout the cost to get it rewired - and I don't know if I can use the existing wires with a new 2 wire jackpoint???

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Ultimate Geek
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Reply # 32884 12-Apr-2006 18:21
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Since there's only really 2 essential wires, just try hooking them to the relevant connector and then plug a phone in to see if you have dialtone. If no dialtone, try swapping them.

There looks to be a schematic of the 3wire version (with tinkle/bell wire) at:

Connector 2 & 5 on the back of the jack are the ones to try.


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Authorised Service Agent for Apple, BenQ, Navman, Sony, and Toshiba - warranty & non-warranty repairs.

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