Internal wiring question - post move to digital voice

Hi all,

I have a BT 5C MK4 master socket with one extension connected, along with an RJ11 cable from the alarm panel also wired into the master socket.

Now that I’ve switched to Digital Voice, the extension and alarm panel wiring are no longer in use.

Will leaving these two pairs connected affect my broadband speeds or prevent the setup from performing optimally? Or is it best to disconnect them?

Thanks in advance.

Edited by Bobby_Valentino (Thu 08-May-25 17:00:33)

It’s only carrying voice (presumably from either your router FXS port or an ATA) so there are no ‘speeds’ involved as this wiring is no longer carrying any VDSL frequencies from the cabinet.

The OP doesn’t say that they have moved to FTTP, so it might be SOGEA .. and for this reason, I say dis off the extension and alarm wiring at the NTE. It isn’t doing any good, but might possibly do a little harm.

If they HAVE gone to FTTP…. then just leave it all in situ

In reply to a post by Zarjaz:

The OP doesn’t say that they have moved to FTTP, so it might be SOGEA .. and for this reason, I say dis off the extension and alarm wiring at the NTE. It isn’t doing any good, but might possibly do a little harm.

If they HAVE gone to FTTP…. then just leave it all in situ

I have NOT moved over to FTTP.

Great – I'll disconnect both the pairs from the BT master socket.

Great – I'll disconnect both the pairs from the BT master socket.

Go for it. The other way leaves an, albeit slim, chance of being an aerial for inducing RFI into the signal. Or a loop fault on the wiring or alarm equipment causing the circuit to seriously struggle

In reply to a post by Zarjaz:

The OP doesn’t say that they have moved to FTTP, so it might be SOGEA .. and for this reason, I say dis off the extension and alarm wiring at the NTE. It isn’t doing any good, but might possibly do a little harm.

If they HAVE gone to FTTP…. then just leave it all in situ

Must remember to actually read the OP properly and reply accordingly 🤣

But the OP doesn't say his alarm system has been discontinued, so what's going on with that? I would expect disconnecting its wire to be the same as a burglar cutting the line.

In reply to a post by pluralist:

But the OP doesn't say his alarm system has been discontinued, so what's going on with that? I would expect disconnecting its wire to be the same as a burglar cutting the line.

I beg to differ Bob.

Now that I’ve switched to Digital Voice, the extension and alarm panel wiring are no longer in use

Maybe the OP reconfigured / disabled functionality on the alarm panel - they did say another extension and wiring to the alarm were no longer in use…🤷‍♂️

Edit: oops I see @Zarjaz had replied before me.

Edited by Pheasant (Fri 09-May-25 06:31:28)

on a side note, what were you and pluralist, drinking to insure major forum blindness ?😂😂😁🤭