SDH光纤系统的原理及其应用

Principal and Application of SDH Optical Fiber System

文章介绍了光同步数字体系 (SyschronousDigitalHierachy)的优点及基本结构 ,以及SDH在实际应用中的最关键的设备———复用设备、交叉连接设备的工作原理、作用 ,并介绍了SDH系统的实际应用。

The paper introduces the advantage and elementary structure of syschronous digital hierachy,and the principal of the multiplexer and cross joint equipment which is the most important part of SDH in practical application,also the paper proposes the practical application of SDH system