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Re: ADSL + PSTN over CAT5 cable
- Subject: Re: ADSL + PSTN over CAT5 cable
- From: "Slavo" <slavo@xxxxxxxxxxx>
- Date: Tue, 19 Sep 2006 07:06:57 -0000
--- In ukha_d@xxxxxxx, Jim Noble <yahoo-groups@...> wrote:
>
> Des Gibbons wrote:
> > The PSTN line goes into the faceplate on the master socket, and
then the
> > unfiltered adsl 'line' and the filtered PSTN 'line' go up the
cat5.
> > (I don't use the ring wire on the PSTN line, hence why I use a
single pair)
> >
>
> Is that because your phones don't ring, or because they don't need
the
> ring signal? :-)
>
> Jim
>
If you have microfilters (i.e. you are using ADSL) you don't need the
ring wire. There are countless articles on the inet desribing the bad
effect of ring wire (also acting as antenae channeling all the
electrical noise into the line). All microfilters generate their own
ring signal. You can actually improve your SNR (sometimes quite
signifficantly depending on the instalation you have) by disconnecting
ring wire from all sockets.
Slavo
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