Telephone wiring help

gerry · July 09, 2009, 08:45:44 PM

Guys looking for a bit of help of wiring the main bt line into the socket that is inside the house. I have done a bit of googling on my phone and have found out that it is a cat 5 bt lead with five main colours. Blue, green, brown, orange, grey and 5 white wires, all these colours are solid.

Any help would be great as i am at my wits end.

ardmhachaabu · July 09, 2009, 08:48:00 PM

What is it you are trying to do exactly?

gerry · July 09, 2009, 08:52:24 PM

I am trying to wire the bt black phone line that comes into your house into the white phone socket that is inside the front door of the house.

ardmhachaabu · July 09, 2009, 10:16:19 PM

I think you would need a BT engineer to be involved at some stage here

The Real Laoislad · July 09, 2009, 10:45:13 PM

If you have a voltage tester you could find out very easily,a telephone signal will produce about 50volts so by trial and error you should be able find the pair of cores which are being used as the signal cables as they will have 50volts across them..
Btw in the south here its usually blue and white

gerry · July 09, 2009, 11:36:32 PM

H was trying to avoid a bt engineer. It my sister house and she got a guy in to wire in another phone but he left it a mess.

Now she got a master bt box with a load of wires coming from it and i have no idea what way to connect them up.

WeeDonns · July 10, 2009, 10:57:00 AM

Ok, is her original phone still working and you're trying to connect up the second socket?

For voice it'll usually be the BLUE &BLUE/White pair that's used to connect it up.

By "connect another phone" do you mean a new phone line with new number different to the one already in the house?

MadMayo · July 10, 2009, 11:07:49 AM

Are you trying to do an electrician out of a job??

MadMayo · July 10, 2009, 11:16:06 AM

First question:- when you open the box is there screw terminals or krone connections!

krone connections:-

because if it is krone connections you will need one of these krone tools and you might be as well calling ur man back incase you make a balls of it:-

gerry · July 10, 2009, 11:12:37 PM

Thanks for all the advice but i gave up on fixing it.

Maybe sparks are underpaid and need to go on strike. Lol

DickyRock · July 11, 2009, 12:26:47 AM

Just a word of caution about doing anything with the by master or any cable connecting it to the outside. It is BT property & they can end up charging you a fortune if you screw you up.
In saying that - I've done it, but just want to let you know the potential consequences.

Anway - the back of a bt master socket connects to the two wires coming in from outside. These go to the A & B terminals. To wire in extra extensions you need to connect two wires to two of the terminal blocks on the front face plate. Can't remember the numbers off hand. But I'll dig them out if you want. The colour of that you connect to each of these doesn't really matter as long as you match them up correctly at the other end at the extension point.