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- Plesiochronous_digital_hierarchy abstract "The plesiochronous digital hierarchy (PDH) is a technology used in telecommunications networks to transport large quantities of data over digital transport equipment such as fibre optic and microwave radio systems. The term plesiochronous is derived from Greek plēsios, meaning near, and chronos, time, and refers to the fact that PDH networks run in a state where different parts of the network are nearly, but not quite perfectly, synchronised.PDH is typically being replaced by synchronous digital hierarchy (SDH) or synchronous optical networking (SONET) equipment in most telecommunications networks.PDH allows transmission of data streams that are nominally running at the same rate, but allowing some variation on the speed around a nominal rate. By analogy, any two watches are nominally running at the same rate, clocking up 60 seconds every minute. However, there is no link between watches to guarantee they run at exactly the same rate, and it is highly likely that one is running slightly faster than the other.".
- Plesiochronous_digital_hierarchy wikiPageID "38512".
- Plesiochronous_digital_hierarchy wikiPageRevisionID "586573190".
- Plesiochronous_digital_hierarchy hasPhotoCollection Plesiochronous_digital_hierarchy.
- Plesiochronous_digital_hierarchy subject Category:Multiplexing.
- Plesiochronous_digital_hierarchy subject Category:Telecommunications_standards.
- Plesiochronous_digital_hierarchy comment "The plesiochronous digital hierarchy (PDH) is a technology used in telecommunications networks to transport large quantities of data over digital transport equipment such as fibre optic and microwave radio systems.".
- Plesiochronous_digital_hierarchy label "Hiérarchie numérique plésiochrone".
- Plesiochronous_digital_hierarchy label "PDH".
- Plesiochronous_digital_hierarchy label "Plesiochrone Digitale Hierarchie".
- Plesiochronous_digital_hierarchy label "Plesiochrone digitale hiërarchie".
- Plesiochronous_digital_hierarchy label "Plesiochronous Digital Hierarchy".
- Plesiochronous_digital_hierarchy label "Plesiochronous Digital Hierarchy".
- Plesiochronous_digital_hierarchy label "Plesiochronous Digital Hierarchy".
- Plesiochronous_digital_hierarchy label "Plesiochronous digital hierarchy".
- Plesiochronous_digital_hierarchy label "Плезиохронная цифровая иерархия".
- Plesiochronous_digital_hierarchy label "准同步数字体系".
- Plesiochronous_digital_hierarchy sameAs Plesiochronní_digitální_hierarchie.
- Plesiochronous_digital_hierarchy sameAs Plesiochrone_Digitale_Hierarchie.
- Plesiochronous_digital_hierarchy sameAs Jerarquía_digital_plesiócrona.
- Plesiochronous_digital_hierarchy sameAs Hiérarchie_numérique_plésiochrone.
- Plesiochronous_digital_hierarchy sameAs Plesiochronous_Digital_Hierarchy.
- Plesiochronous_digital_hierarchy sameAs Plesiochronous_Digital_Hierarchy.
- Plesiochronous_digital_hierarchy sameAs Plesiochrone_digitale_hiërarchie.
- Plesiochronous_digital_hierarchy sameAs Plesiochronous_Digital_Hierarchy.
- Plesiochronous_digital_hierarchy sameAs PDH.
- Plesiochronous_digital_hierarchy sameAs m.09lfk.
- Plesiochronous_digital_hierarchy sameAs Q51832.
- Plesiochronous_digital_hierarchy sameAs Q51832.
- Plesiochronous_digital_hierarchy wasDerivedFrom Plesiochronous_digital_hierarchy?oldid=586573190.
- Plesiochronous_digital_hierarchy isPrimaryTopicOf Plesiochronous_digital_hierarchy.