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Good clock from DSL
Has anybody investigated extracting a clock from a DSL link?
It wouldn't tell you the time of day, but it might be a stable
frequency source if it's derived from the telco master clock.
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 hmurray
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6/25/2003 5:16:57 AM |
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hmurray@suespammers.org (Hal Murray) wrote in message news:<vfic29q751l517@corp.supernews.com>...
> Has anybody investigated extracting a clock from a DSL link?
>
> It wouldn't tell you the time of day, but it might be a stable
> frequency source if it's derived from the telco master clock.
I don't think it would necessarily be tied to the telco master clock. It's
not as if the DSL signals are muxed and demuxed; AFAIK the concentration is
done through a technology more similar to a regular ethernet switch.
That said, it*might* be derived from a master clock. Maybe I should measure
my SDSL clock with my Z3801A as a reference...
Tim.
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shoppa
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6/25/2003 6:31:00 PM
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