"David Bradley" <(E-Mail Removed)7> wrote in message
news:(E-Mail Removed)...
>
> Something that has made me think long and hard is whether each
> analogue piece of equipment actually requires an individual filter or
> if two way adapters could be used on the outhput side of the ADSL
> filter. My impression is that with some filters this would be OK but
> I would like a definative answer from an expert within this group.
>
There's no reason why 2-way adapters cannot be used on the 'phone outlet
side of a microfilter.
The only reason why it's done that way (as far as I can see) is ease of
installation (pull the jack out - fit a filter - put the jack back in--- at
each installation site).
Doing it once (at the point of entry after the BT Master socket) would
require two cable runs to the ADSL modem site (1 for the [now filtered]
modem, and 1 for the [now filtered phone which {presumably} was there
aswell).
So, to sum up, you COULD filter at the BT Master, but all phones, Sky boxes,
etc. would then need to hang off one side of the filter, and the modem from
the other. For the cost of the filters, I don't think its worth the effort
(and hassle) in re-cabling.
HTH
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