solarwind wrote:
> I've been doing some reading and research on how the analog phone
> signal + the dc power + ADSL signals all work (on a electronics &
> signals level) on the same set of copper wires. I've come across this
> document: http://www.epanorama.net/documents/telecom/adsl_filter.html
> and have a few questions.
> 
> * First question. How does this work? How do the signals NOT interfere
> with each other on the line?

Same way your local radio stations share the airwaves. 

 
> * It appears that my phone line has only two wires. Is this a twisted
> pair? I'm guessing not because I don't see a third ground line.

Twisted pair only requires two wires. 


> * If it's not twisted pair, how is ADSL able to operate at such high
> speeds (10 mbit/s) reliably?

It is twisted pair, and it's only a short distance from the central office.

Vitaliy
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