It was the first, and gave the correct answer and what I was hoping for . So worth being thanked for.

The nte5 has a an adsl filter plate ensuring all filters / alarms etc are filtered

Thanks, just a thought about your own setup, rather than my general question.

ARe you saying you have a burglar alarm wired (indirectly) into the filtered IDCs on the faceplate?

If so surely if you ever need to remove the faceplate you will trigger the alarm control centre? Alarms should be filtered at the control panel end and wired to the BT A/B terminals.

It will all work but best practice is to only put 2 connections in to an idc termination cos the third one will tire the connection after a few fiddles .

Edited by deleted (Tue 29-Mar-11 23:27:02)

Some alarm interfaces have DSL filters built in but the ideal way is to wire from the AB terminals to a "Hardwire Filter Box" which is a filter on a faceplate but with no phone socket, just in and out IDCs. They are normally fitted using security screws too.

In reply to a post by MHC:

Some alarm interfaces have DSL filters built in but the ideal way is to wire from the AB terminals to a "Hardwire Filter Box" which is a filter on a faceplate but with no phone socket, just in and out IDCs. They are normally fitted using security screws too.

edit to add:
Clarity.it version

http://www.clarity.it/acatalog/adsl_hardwire.html

I have currently have three wires into each idc termination, behind the faceplate.
Does that mean those connectors are being weakened ? They seem to be holding
at the moment. Is it possible that one or more wires could come loose in future ?

- Alex

Yes, standard IDCs are designed for just two. Yes, they can come loose in future and the original specs say just two.

In the consumer world there are none, but there were at one time, commercial IDC terminals that would take 3 wire but no more.

Probably fine, but don't meddle. You would probably be best if installing a further socket to daisy-chain it from an existing one.

You've obviously seen the IDC terminals. Not exactly robust or capacious.