6 wire extension to BT socket and linking to original wiring

[Gazzer1uk]

Hi folks,

I want to use the pre-existing cables for the BT phone sockets in the house. Last we had things done, as I had wireless phones, I only had the install to the main socket and the wiring in the house was not connected up. I bought an extension cable and a double socket so that in theory I could use the double socket from the main BT socket, I cold then cut the extension cord, and solder the wires to the existing installation.... Only the colour systems and number of wires are different!

On the extension cable there are 6 wires Pink, Green. Brown, white yellow and grey. On the existing cabling there are 4 wires, white/blue - blue/white - orange/white - white/orange......

Does anyone know which ones should connect to which?

To make it more complicated there is another 5 cable extension which also features green!!!

Any thoughts/input would be really appreciated, thanks,

Gazzer

[Keith_Beddoe]

@Gazzer1uk 

Who provides your phone and broadband connection?

[Gazzer1uk]

Why BT of course!

[imjolly]

Are you just trying to create more phone socket outlets so you can connect more phone or are you hoping to use sockets for broadband?

Which master do you have

[Gazzer1uk]

Hi Imjolly,

Its the no 7 style and just want to use the sockets believe it or not for an old dial type phone not for broadband!

[imjolly]

The  colour of the wires is immaterial just make sure they are connected to the correct terminals 2&5 which are visible to the left of master when faceplate is removed 

[Gazzer1uk]

Thanks or your help here

[Starwire]

Never come across telephone cabling with those colour codes. Sounds more like the kind of cabling used in alarm systems, which wouldn’t do your Broadband any favours.

[Gazzer1uk]

All I can say is that the already installed wiring originally worked with BT and the extension cable would have worked if I had not cut it in two to link up......

[Starwire]

It’s quite common to come across Alarm Cabling being used as Telephone Cabling.

Don’t know if it’s cheaper but best guess is it’s usually done by, ‘I know a guy who will do it for less’.