Lee Nowell wrote:

You may have spotted a problem in my plan. Rather than have the slave
socket I was going to connect directly to he patch panel. So in essence
that is a direct connection from the 2 wires the phone needs in the RJ11
to the patch panel,across to the phone bit of the patch panel and then
back to the wired end in the master socket. Hence why I was thinking I
need to know which pins/ colours the phone would use in the RJ11.

The flaw seems to be that I have forgotten about the broadband router's
which also needs to be connected to the patch panel phone connectors. So
need some way of splitting filtered Vs unfiltered. At the moment the
phones are directly wired into the back of the slave socket and the router
connected via one of those filter things in the faceplate. Having now said
this it sounds a bit odd. It was something I quickly knocked together to
get something working during building works

I assume phone is unfiltered and the modem and alarm are filtered?

No, the phone and alarm should be filtered, and the modem unfiltered.
But note that the separate so-called "filters" you buy consist of normal
telephone plug going directly (unfiltered!) to female RJ11 and via a
low pass filter to a standard telephone socket. If you use the
filtered faceplate the RJ11 on the front is unfiltered and the telephone
sociket on the front goes via a low pass filter. Both connections are
also available as IDC connectors on the back. Possibly you will need
separate runs to the patch panel for each if the modem is not near the
master socket. You can run the unfiltered line to the patch panel and
use plug in filters for the phone and alarm, but this is a waste of the
filtered faceplate and leads to more plugs and sockets than necessary.
You may have to look at the rules for the alarm (rules written by
insurers or alarm companies) as they may demand a hard wired connection
(i.e. no plugs and sockets) from the master socket to the alarm.

--

Roger Hayter