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IEVref:704-20-07ID:
Language:enStatus: Standard
Term: digital multiplex hierarchy
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Definition: series of levels of digital multiplexing in which each level is characterized by a defined bit rate, and in which each level handles a digital signal assembled by multiplexing signals whose bit rate is that of a lower level

Note 1 to entry: The Standardization Sector of ITU has standardized two digital multiplex hierarchies, the plesiochronous digital hierarchy (PDH) and the synchronous digital hierarchy (SDH).


Publication date:2019-10
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Replaces:704-20-07:1993-08
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