SDH网中的同步定时问题

The Synchronization and Timing of SDH Networks

随着 SDH在通信网中的大量使用 ,SDH的同步定时问题引起了人们的广泛关注。首先讨论了传输系统中引入 SDH网后对数字时钟同步网的影响及 SDH网本身的同步定时问题 ,并给出两种避免定时环路的方法。

Along with the SDH’s extensive applications in the telecommunications network,people now pay more and more attention to the SDH’s synchronization and timing.This paper discusses the SDH’s synchronization and timing and its influence on synchronous network,then gives two kinds of methods on how to avoid timing loop.