DIN EN 300462-5-1-2000 传输和多路复用.同步网络的一般要求.第5-1部分:同步数字体系(SDH)设备适用的从属时钟的计时特性
Transmission and Multiplexing (TM) - Generic requirements for synchronization networks - Part 5-1: Timing characteristics of slave clocks suitable for operation in Synchronous Digital Hierarchy (SDH) equipment (Endorsement of the English version EN 300462
The document contains requirements for timing devices used in synchronizing networks equipment that operates according to the principles governed by the synchronous digital hierarchy.