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- 3 Sep 2017
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In the morning I'll be helping an elderly neighbour trying to identify which of 4 wires from the telephone half of the broadband/telephone cable fitted years ago by NTL should connect to the 3 wires to the phone socket. The phone crackles and dialling out doesn't work. Calling the number gives no ringing tone, just taking me to straight to voicemail, which she doesn't have on her phone and I presume is her phone provider's.
AFAIK the terminals on the phone socket should be:
2: Blue with White bands, for speech (and ringing?) at ~38-48V DC.
3: Orange with White bands, for ringing at ~75V AC.
4: White With Orange bands, not used here but often connected for neatness.
5: White with Blue bands, for speech (and ringing?) at ~38-48V DC.
I had a quick look at the supply cable and the colours seem to be:
Orange: connected to Blue with White bands (ie to terminal 2)
Orange with White Stripe: connected to White with Blue bands (ie to terminal 5)
Blue: unconnected
White: unconnected
It looks as if the ringing wires have become detached and I can't see which of those 2 supply wires should connect to the terminal 3 O/W wire.
I won't have much time in the morning to pfaff around and my research has drawn a blank on which of those 2 supply wires I should use. Does anyone know which wire I should use and/or how I can test with a multimeter?
AFAIK the terminals on the phone socket should be:
2: Blue with White bands, for speech (and ringing?) at ~38-48V DC.
3: Orange with White bands, for ringing at ~75V AC.
4: White With Orange bands, not used here but often connected for neatness.
5: White with Blue bands, for speech (and ringing?) at ~38-48V DC.
I had a quick look at the supply cable and the colours seem to be:
Orange: connected to Blue with White bands (ie to terminal 2)
Orange with White Stripe: connected to White with Blue bands (ie to terminal 5)
Blue: unconnected
White: unconnected
It looks as if the ringing wires have become detached and I can't see which of those 2 supply wires should connect to the terminal 3 O/W wire.
I won't have much time in the morning to pfaff around and my research has drawn a blank on which of those 2 supply wires I should use. Does anyone know which wire I should use and/or how I can test with a multimeter?