Mailinglist Archive: opensuse (1517 mails)

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Re: [opensuse] Moving to IPv6
  • From: Ilya Chernykh <neptunia@xxxxxxx>
  • Date: Tue, 14 Sep 2010 17:05:30 +0400
  • Message-id: <201009141705.30588.neptunia@xxxxxxx>
On Tuesday 14 September 2010 16:37:09 James Knott wrote:

Loading coils were used to make phone links work better over longer
cable runs, by equalizing frequency response in the voice bandwidth.
However, those coils also kill ADSL.

Yes, and also in this country most of telephone wiring historically was made
not with twisted pair but with cables with parallel conductors (like this: )

Also in older outlets a saw capacitors which effectively filter out not only
high frequency but even the frequencies of modem data transfer.

This may require re-wiring in order to have full speed ADSL.

ADSL over telephone line is not better in any way than other exotic solutions
on the market like ADSL over mains power outlets. Some ADSL providers
advertise ADSL solutions based on new lines, which is nothing more expensive
for the user than using existing telephone lines (i.e. the connection in both
cases is free, and of course there is no evident advantage over Ethernet as
in both cases new wiring is required).
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