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synchronous digital hierarchy

Title English: 
synchronous digital hierarchy
Acronym English: 
SDH
Definition English: 
SDH (Synchronous Digital Hierarchy) is a standard technology for synchronous data transmission on optical media. It is the international equivalent of Synchronous Optical Network. Both technologies provide faster and less expensive network interconnection than traditional PDH (Plesiochronous Digital Hierarchy) equipment.
Title Arabic: 
تراتب رقمي متزامن
المجال الأحصائي: 
Information Technology
الموضوع: 
ICT Indicators
InformationType: 
Term
SourceSymbol: 
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