Hi,

A friend told me that the split needed to run phone and broadband is
made at the exchange.

But I have read that the split is made in the users home using a
splitter.

Can anyone explain.

Thanks

"species8350"  wrote in message 
news:ac3e1477-ffc9-4010-b63b-31a0d015b251@p9g2000vbl.googlegroups.com...
> Hi,
>
> A friend told me that the split needed to run phone and broadband is
> made at the exchange.
>
> But I have read that the split is made in the users home using a
> splitter.
>
> Can anyone explain.

Both actually

This would be a good place to start for an explanation.

http://www.thinkbroadband.com/guide/howitworks/

Peter Crosland

"species8350"  wrote in message 
news:ac3e1477-ffc9-4010-b63b-31a0d015b251@p9g2000vbl.googlegroups.com...
> Hi,
>
> A friend told me that the split needed to run phone and broadband is
> made at the exchange.
>
> But I have read that the split is made in the users home using a
> splitter.
>
> Can anyone explain.
>
> Thanks

In the exchange the ADSL is combined with the voice (PSTN)
service by looping  (jumpering) the subscribers pair through
the "modem", correctly called the DSLAM.

At the subscribers end a micro-filter is used to remove the ADSL
signal from the phone this is for two reasons:
1)  to prevent it causing audible noise due to demodulation by semiconductor
circuitry in the phone, fax, etc.

2) to effectively isolate the phone from the line *at ADSL frequencies*.
Typically, without a filter, the modem will lose sync when the handset goes
off hook and places a low impedance across the line.

The telephone line passes through the micro-filter unchanged via
an RJ11 connecter to the modem, for that reason I don't like
calling micro-filters "splitters"

Where there are additional extensions, the practice in this country
is to use a micro-filter on each device, with nothing plugged into
the RJ11.
This is not an ideal solution especially for marginal lines.
A better solution is to use a single central filter to feed all
the telephone sockets.There are replacement filtered faceplates
available for the NTE5 master socket that make a nice neat job of this.

-- 
Graham.

%Profound_observation%

On Sep 1, 3:26 pm, "Graham."  wrote:
> "species8350"  wrote in message
>
> news:ac3e1477-ffc9-4010-b63b-31a0d015b251@p9g2000vbl.googlegroups.com...
>
> > Hi,
>
> > A friend told me that the split needed to run phone and broadband is
> > made at the exchange.
>
> > But I have read that the split is made in the users home using a
> > splitter.
>
> > Can anyone explain.
>
> > Thanks
>
> In the exchange the ADSL is combined with the voice (PSTN)
> service by looping  (jumpering) the subscribers pair through
> the "modem", correctly called the DSLAM.
>
> At the subscribers end a micro-filter is used to remove the ADSL
> signal from the phone this is for two reasons:
> 1)  to prevent it causing audible noise due to demodulation by semiconductor
> circuitry in the phone, fax, etc.
>
> 2) to effectively isolate the phone from the line *at ADSL frequencies*.
> Typically, without a filter, the modem will lose sync when the handset goes
> off hook and places a low impedance across the line.
>
> The telephone line passes through the micro-filter unchanged via
> an RJ11 connecter to the modem, for that reason I don't like
> calling micro-filters "splitters"
>
> Where there are additional extensions, the practice in this country
> is to use a micro-filter on each device, with nothing plugged into
> the RJ11.
> This is not an ideal solution especially for marginal lines.
> A better solution is to use a single central filter to feed all
> the telephone sockets.There are replacement filtered faceplates
> available for the NTE5 master socket that make a nice neat job of this.
>
> --
> Graham.
>
> %Profound_observation%

Thank You

Best wishes.

S