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?

* 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.

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

-- [ solarwind ] -- http://solar-blogg.blogspot.com/
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