| 摘要 | This Recommendation outlines minimum requirements for timing devices used in synchronizing network equipment that operate according to the principles governed by the Synchronous Digital Hierarchy (SDH).This 2003 revision of G.813 includes, in addition to a few editorial points, two technical points:-An update in section 8.2.b of the jitter tolerance for option 2 that has already been published in the G.813 Corrigendum1 in 2001.-The introduction of STM-64 jitter generation values for options 1 and 2 in section 7.3.
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