[Gllug] Multiple ADSL splitters

[Gundemarie Scholz]

Matthew King wrote:
> Chris Bell <chrisbell at overview.demon.co.uk> writes:
> 
>> On Tue 14 Nov, Matthew King wrote:
>>
>>> 
>>>       ___                   ___
>>> \    |   |                 |   |
>>>  \   | F |-ADSL-(nothing)  | F |-ADSL--Modem--LAN
>>> BT|--| L |                 | L |
>>>  /   | T |-POTS----+-------| T |-POTS--Telephone extensions
>>> /    |_R_|         |       |_R_|
>>>                    |
>>>                    |
>>>                    +-----More telephone extensions
>>> 
>>> So will this work and if not, why not?
>>> 
>>> I would rather know for sure one way or the other before we start
>>> digging into walls.
>>
>>    As shown the first filter is totally wrong. Filtering is only applied to
>> the phone output, and no ADSL will get through the filter.
> 
> Wrong or not, I am moderately certain that it is how it was configured.
> 
> It could be that the first filter was useless as the building's patch
> panel was connected to the ADSL side rather than the POTS side but I
> cannot check as not only have I left the company but the company has
> moved building too.

As far as I know the POTS port has the ADSL signals filtered out whereas
the ADSL port gets all signals. So that would match your description again.

Ah yes, here is one of the sources:
http://www.adslguide.org.uk/qanda.asp?faq=technical#Q217

Regards,
Gunde
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