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Old school telephone wire master socket.
- Thread starter Benneh23
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Incoming line is usually green & black, or white & orange. Both if 2 lines are installed.
Internal wiring can be whatever the installer used at the time.
That outline isn't the shape of a mater socket either.
Internal wiring can be whatever the installer used at the time.
That outline isn't the shape of a mater socket either.
Its probably one of these
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Taylortwocities is correct for old school wiring, however today the new open reach master is square, they have a few versions some have two sockets one for data and one for phone and some a single socket for both, in the main they have a removable bottom section where you can connect an extension, the idea is should you get a fault you can remove the bottom section which disconnects all but the master socket and you can then test just the open reach line to see if fault is in your internal wiring or open reachs line.
The master what ever shape has spark gaps, capacitors, and resistors in it, and some times filters which store power to make old phones ring, and can split the broad band from phone. After the master you have four wires instead of two, and there are no components in the box. If you get the incoming wrong way around for cordless phones it does not matter, but for corded phone they might not ring and the fax machine may not recognise the correct ring. Not sure if you still can get two numbers for the same line with different rings so fax machine never answers phone, it has been some years since my fax machine failed and I did not replace the 19th century technology. Alexander Bain's invention did not do bad it did last over 100 years.
The master what ever shape has spark gaps, capacitors, and resistors in it, and some times filters which store power to make old phones ring, and can split the broad band from phone. After the master you have four wires instead of two, and there are no components in the box. If you get the incoming wrong way around for cordless phones it does not matter, but for corded phone they might not ring and the fax machine may not recognise the correct ring. Not sure if you still can get two numbers for the same line with different rings so fax machine never answers phone, it has been some years since my fax machine failed and I did not replace the 19th century technology. Alexander Bain's invention did not do bad it did last over 100 years.
I would guess there is a master socket downstream
It was common to have a junction where the cable came in, in the old days.
But yes check your phone rings.
It was common to have a junction where the cable came in, in the old days.
But yes check your phone rings.
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