YD/T 1289.2-2003 Synchronous Digital Hierarchy (SDH) transport network management system technical specification part 2:Element Management System (EMS) function (English Version)
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YD/T 1289.2-2003
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2003YD/T 1289.2-2003 Synchronous Digital Hierarchy (SDH) transport network management system technical specification part 2:Element Management System (EMS) function