Sometimes it's not possible/practical/convenient to filter all your phone extensions with a centralised BT ADSL adaptor unit for your BT Master socket. Traditionally your only alternative has been dangly plug-in microfilters.

Well, here's our complete range of professional quality secondary telephone extension sockets with completely INTEGRATED ADSL filter units.

On this page...
Overview
Is this a permanant job? Absolutely.
What about sockets where I DO want ADSL access?
Which one(s) should I buy?
What about the BT Master line box?
Installation
BUY your filtered extension sockets



NOTE: If you want to know more about WHY ADSL filters are necessary at all, read THIS article



Overview
Every telephone socket needs to be filtered when ADSL is operating on the phone line. There are several approaches to doing this. If you have an NTE5-type BT Master socket, you can use one of the official BT ADSL Adaptor Faceplates for it, which removes the ADSL noise from all your extension wiring in one go, and provides connection for dedicated ADSL (unfiltered) extensions to be installed for ADSL access at locations other than at the master.

But sometimes re-jigging wiring might pose a bother, or indeed you may not actually HAVE an NTE5 style BT socket. So the usual solution has been to use plug-in microfilters at each and every telephone point where telephone equipment is plugged in. The bummer with this is if course that you then have a dangly little box hanging out of the wall in each location.

Plug-in microfilters have been proven to be incompatible with; The Dog, The Brats, The Wife, and of course give you no pride in a neat and complete Job Well Done.

Hence this helpful new line of ADSL installation equipment we now bring to you.

Is this a permanant job? Absolutely.
Once these sockets are in place, they can happily remain there for good. If you ever have ADSL service terminated, you don't need to RE-fit your old socket fronts. These contain a top-quality performance microfilter unit, whose sole function is to REMOVE the ADSL noise from telehone sockets so that all your normal telephone equipment including phones, dialup modems, SKY boxes and so forth can operate as normal. If ADSL is ever removed from the line, the filters are simply redundant and don't do anything. And of course if you (or a subsequent resident) resubscribes to ADSL services, the sockets are already prepared and ready. Of course it's entirely up to you if you take them with you when you leave - depends how tight you are I suppose...




What about sockets where I DO want ADSL access?
See the LJ4 version. It provides both a filtered telephone socket, AND an unfiltered RJ11 socket providing clean, untampered ADSL signal.



Which one(s) should I buy?
Oh I get it, you want us to plan your installation for you for free eh? Heh. Well, here's all you need to know to figure out which ones to use: In a typical installation, you would fit an LJ2F or LJ3F (depending on which size line box you want/already have) at all phone points where you will NOT need ADSL access available, and an LJ4F at any telephone points where you DO want to be able to plug your ADSL Modem/Router in. It's that simple. Decide where you do or don't want the ADSL signal to be available, and figure out which size you want for the non-ADSL locations and that's about it.



n or else fit an LJ2/3/4F extension unit beside the master and NOT use the master socket itself at all (it could still be used as an ADSL socket). You absolutely under NO CIRCUMSTANCES can use any of these secondary products on a BT Master socket unit directly, they must be used for EXTENSION SOCKETS ONLY.

Just in case anyone (and there's always SOMEone) had the smart idea of using an LJ3F or LJ4F to REPLACE the BT Master unit, well... the world of shit you would open up would be astronomically bad, so push that thought FAR from your mind. Trust The Clarity on this matter.




Installation
It really is as simple as it sounds. These are to be treated just like any normal, ordinary telephone wall socket.

The wiring connections are industry standard IDC "Krone" type punch-down terminals, for which you need an inserter tool. We sell everything from one-off cheapo ones to the real Krone tool on this site, so make sure you have one.

You can fit a completely new ADSL filtered linebox from scratch, or you can replace the faceplate of your existing extensions with one of these (assuming suitable depth of existing back box/flushmount box). We have both the standard extension socket sizes (LJ2 compact size and LJ3/4 standard size) catered for, so choose what you need. They're even made from of plastic type and colour which exactly matches original BT line boxes too.

LJ2 size units are supplied with a back box, for surface mounting. If you're just replacing an existing LJ2 linebox, then just replace the faceplate - the new ADSL/LJ2F will fit on your currently fitted surface mount box.

LJ3/LJ4 (85mm) standard size units don't come with a back box - unless you're flush-fitting the unit, be sure to order yourself an 18mm or deeper surface-mount back box too.

We think you'll be able to find a screwdriver OK on your own...