Digital multiplex hierarchy: Difference between revisions

Revision as of 05:38, 30 March 2022

Revision as of 05:39, 30 March 2022

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In [[telecommunication]]s, a '''digital multiplex hierarchy''' is a hierarchy consisting of an ordered repetition of [[tandem]] [[digital multiplexer]]s that produce signals of successively higher [[data]] rates at each level of the hierarchy.<ref name="Weik 2000">{{cite book|title=Computer Science and Communications Dictionary|publisher=[[Springer Publishing]]|___location=[[Boston]], [[United States]]|isbn=978-0-387-33556-8|doi=10.1007/1-4020-0613-6|url=https://link.springer.com/referencework/10.1007/1-4020-0613-6|first=Martin H.|last=Weik|chapter=digital multiplex hierarchy|year=2000}}</ref>

Digital [[multiplexing]] hierarchies may be implemented in many different configurations depending on; (a) the number of channels desired, (b) the [[Signalling (telecommunication)|signaling]] [[system]] to be used, and (c) the [[bit rate]] allowed by the [[telecommunication|communications]] media.<ref name="Weik 2000" />

Some currently available digital multiplexers have been designated as [[Digital Signal Designation|Dl-, DS-, or M-series]], all of which operate at [[T-carrier]] rates. <ref name="Weik 2000" />

In the design of digital multiplex hierarchies, care must be exercised to ensure [[interoperability]] of the multiplexers used in the hierarchy.