But you'll still have a bridge tap

But if the bridge tap comes before the master socket then I thought the bridge tap wouldn't have any interference as it's effectively a proper master socket?

Nope. It isn't.

The 2 sockets are wired in parallel. If you use one, the other is the bridge tap.

I get it now... God I know naff all!

Will search for the BT66 tomorrow.

Agreed.

In reply to a post by BatBoy:

The 2 sockets are wired in parallel.

That assumes that the one in the bedroom isn't actually the "entry point", and the "master" is wired from it.

Our old house, circa 1996, was wired this way. Until the original ADSL installer fed the incoming line through to the final extension with jelly crimps, and turned that one into the new master with ADSL faceplate.

Curious routing from an underground feed: Enters house on the outside wall of the living room, next seen in the front bedroom, then routes down to the hall, then back to an upstairs bedroom at the back.

Is there a way I can disconnect the bedroom socket, and then test the "master" socket, to see if the master is tapped off of the bedroom socket?

Assuming that the bedroom socket has a "plain" full-size face-plate, and doesn't have the split faceplate of an NTE-5...

The simplest thing to do is to take the cover off that bedroom socket, and see what wires are in there.

If there is one cable with (probably) 2 or 3 wires connected to the faceplate, then it is at the far end of a spur, and the joint is somewhere else.

If there are 2 cables, each with (probably) 2 or 3 wires connected to the faceplate, then this bears more investigation.

If there is anything other than these 2 cases, it also bears more investigation.

Here is all I can find on the side of the house:
http://cl.ly/image/2K420D0n252M/Screen%20Shot%202014...

Yup, you see that right. One of the old (101?) covers bearing the older than old BT logo. My Googling shows that this is over 22 years old - on a house finished in December 2007!

My neighbour's house has the same thing.

The white cable next to this grey cover is a power supply to external plug sockets. So I have some lovely electrical interference to contend with too...

Am I authorised to remove the capping to investigate?

On the other side of the wall, where you can see in the image the copper cable enters the building, nothing can be seen. So I think this is the bridge tap up to the bedroom.

This setup is especially weird as my master socket is on completely the opposite side of the house to this drop-wire. The bedroom socket (the one running off the bridge tap), is on the same side of the house as this drop-wire.

The fault-finding system you (Zarjaz) mentioned in an older post has already flagged up that our line is not performing as well as expected and Plusnet are aware.

Edited by deleted (Thu 13-Feb-14 16:37:39)