<<<September 6, 1996 - Mr. Kim Maxwell (Chairman of the ANSI T1E1.4 Committee) says CAP coffin nailed shut as far as ANSI standard adding second line code. Who is she? (18)
John --
*Mr.* (may be Dr. or Prof. for all I know) Kim Maxwell is chairman of the ADSL Forum.
His essay on Cable vs. ADSL can be read at:
adsl.com
One quote:
<<<Most CATV systems today are not HFC. Rather they are tree and branch compositions of coaxial cable, sometimes serving as many as 10,000 customers from a single headend, with one-way amplifiers that preclude any upstream data flow. Since 1993 many CATV lines have
been installed with two-way amplifiers, creating an upstream path from 5 to 45 MHz. However, the sheer size of these networks and the noise and channel problems with so many subscribers attached to a common line make high speed upstream channels unattainable after a few subscribers have joined the line.
Upgrading a coax system from unidirectional to bi-directional may be accomplished by physically replacing amplifiers, at a cost around $25 per home passed. Upgrading from coax to HFC requires more work -- laying fiber, installing ONUs, rerouting any coax not convenient to the ONU, and replacing the few remaining coax amplifiers (they cannot be eliminated altogether). Costs vary, but $200 per home passed seems to be a decent operating assumption. >>>
Kim Maxwell represented the ADSL Forum at the FCC hearings earlier in the year so if anyone has questions, he's your man. [KimMaxwell@aol.com]
Regards,
Pat
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