Jono wrote:
> JC wrote:
>> Have I got this right. Are you saying I should replace this face plate
>> with an ordinary BT main socket one and either have the filtered face
>> plate on the ext socket I wish to use or use an ordinary phone socket
>> and a microfilter?
> Pretty much so, yes.
No! No! No! No! No! A hundred times No!
A filtered faceplate only fits a master socket.
You shouldn't really fit extra master sockets (although doing so
shouldn't break things, it's not spec). Fitting extra master sockets may
increase snr and adversely affect adsl speeds, and without knowing the
electrical layout of extension phone sockets in the house, it's not safe
to say that simply putting a splitter faceplate on the socket where you
want to use the router will work.
I already posted a simple diagram, and a link to a page with a good
layman's writeup.
Please refer back to my diagram at
http://homepage.ntlworld.com/anne-ma...ones/adsl1.gif
Blue line in from BT goes to the master socket backplate, passes through
the line protection and bell module in the backplate, and is fed to the
splitter faceplate from the backplate socket to the faceplate plug, in
the faceplate the adsl and voice signals are seperated by filters.
The voice signal is available (a) on the front panel BT style socket,
and (b) on the rear of the faceplate on a connection section for voice
extensions. All the telephone extensions of this line in the premises
are fed directly or indirectly from this connection section.
The adsl signal is only available on the rj45 connection on the front of
the faceplate. To extend this connection to the location that you want
the adsl modem, you have to extend the adsl connection using a suitable
twisted pair. BT internal cable eg cw1308 should be suitable, and it
really only needs to use 1 pair, although using cat5 also means that
people won't get confused in future.
At present you have a master socket in the garage with a splitter
faceplate, and extension telephony sockets wired to the extension
connector, what you need to do is get the adsl signal from the splitter
faceplate to the adsl modem.
The correct, best and proper way to do this (method 1 above) is to
install a twisted pair (ideally cat 5) run from the faceplate to the
adsl modem, with a patch cable to the faceplate and the adsl modem
plugged in at the other end. The twisted pair cable would be the light
green one on my diagram, and the patch cable the light blue / cyan one.
As I said before, you might get away with using telephony cable, and the
adsl signal at this point is only on one pair, but I don't know which pair.
The alternative (method 2 above) is to use the original master faceplate
and not the splitter faceplate at the master socket in the garage, and
use a microfilter in every telephone socket in the house to split adsl
and telephony signals. Using this method you will probably get poorer
adsl performance but it should work. Also using this method you only use
1 pair (normally the blue pair) of the extension wiring cable to connect
the "2" and "5" terminals of the master faceplate to the 2 and 5
positions of the extension sockets.
Trying to do other things may lead to (a) adsl and / or telephony not
working properly on some or all sockets and (b) possibly damaged
equipment (although I've personally never heard of it happening) from
exposure to wrong frequency signals.
Also, doing anything else is a total bodge job, and the problem with
such bodge jobs is that you need a really good understanding of how it
all works and what should be happening to troubleshoot them when they
don't work.
Denis McMahon