On 03/09/2012 12:16 AM, Bob Camp wrote:
Hi
SDH/SONET generally is line timed rather than GPS locked. It's ultimate
authority is the Stratum 1 above it...
Yes, but GPS/LORAN can be used to build holdover synchronisation, and
verify the local cesiums.
Stratum 1 is the ANSI T1.101 name, also known as PRC in SDH, which is
ITU-T G.811.
Cheers,
Magnus
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