Transmission and Multiplexing (TM) - Generic requirements for synchronization networks - Part 4-1: Timing characteristics of slave clocks suitable for synchronization supply to Synchronous Digital Hierarchy (SDH) and Plesiochronous Digital Hierarchy (PDH) equipment (Endorsement of the English version EN 300462-4-1 V 1.1.1 (1998-05) as German standard)
传输和多路复用(TM).同步网络的一般要求.第4-1部分:适用于同步数字体系(SDH)和准同步数字体系(PDH)设备同步供应的从时钟的定时特性