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2010/08/14 14:05:43

SDH

Synchronous digital hierarchy. Abbreviation of Synchronous Dijital Hierarchy. Standard for high-speed optical networks of communication. Allows to create flexible, trusted and effective networks with full program control. Thanks to "the high level of standardization" this technology gives the chance to use the equipment of different producers in one network. In North America there is an analog of SDH — SONET.