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philip1936
new user
Reg'd: Thu
Posts: 1
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I have recently had problems with my Broadband,i could get BB using the BT test socket,when the face plate was replaced no BB the phone was OK.i checked all my extension wiring for shorts and continuity all OK, searching the net i obtained some info, namely terminals 2 & 5 have -48v & 0volts.I also had -48v on the Bell terminal (3), i removed this wire orange with white bands, and now everthing works, i do not need an extension phone so a bell line is not necessary.Should there be a voltage on terminal three, this was measured from an extension socket after the face plate was replaced.Any helpful BT Engineers who might be able to answer this problem, would appreciate any help thank you. Phil
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ianm
regular
Reg'd: Fri
Posts: 347
Loc: Colchester
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The bell works between pins 3 and 5, these should have no voltage between them, what happens when the phones rings the voltage changes to about 75v ac, this voltage is on pins 2 and 5 but there is a capacitor between pins 2 & 3 allowing the AC voltage to get onto the bell circuit.
If you don't require any extension sockets then your best bet would be to take off everything on the front plate, there is no exact science as to why adding one extension or as in your case taking off a bell wire makes any difference,
I work as a BT engineer but am not a broadband engineer, however I have very close involvement with them and the first thing they do is fit a filtered front plate to the main socket, about 70% of the time this sorts out connection issues.
Cheers
Ian
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