The 75 and ZT Owners Club Forums - Openreach fibre cable and 50v

The 75 and ZT Owners Club Forums (https://www.the75andztclub.co.uk/forum/index.php)

- Technology Forum (https://www.the75andztclub.co.uk/forum/forumdisplay.php?f=24)

- - Openreach fibre cable and 50v (https://www.the75andztclub.co.uk/forum/showthread.php?t=307610)

Openreach fibre cable and 50v

From memory, the copper cable Openreach/BT used, to get the telephone line to houses, carried 50v to operate the phone.
Nowadays, I suspect most phones run from the mains power

If you have Broadband over copper wires do you still get the 50v?
If you have part of your phone line as fibre with or without Broadband, do you get the 50v?

Thank you

macafee2

Quote:

Originally Posted by macafee2 (Post 2834378)

From memory, the copper cable Openreach/BT used, to get the telephone line to houses, carried 50v to operate the phone.

Yes!

Nowadays, I suspect most phones run from the mains power

Yes, but the usual supply is still there from BT

If you have Broadband over copper wires do you still get the 50v?

Yes

If you have part of your phone line as fibre with or without Broadband, do you get the 50v?

Thank you

macafee2

We have fibre to the BT box down the road, then copper - we still have the same voltages as before, but with 40Mb connection. Basically the FTTC makes no difference at all, we still have what we had in the 1960's at the phone socket.