摘要
TTU-T自1994年以来制定了一些有关SDH的建议,并对1994年以前制定的建议进行了修订.我国从1994年开始引进SDH,在网络建设和运行方面已积累了不少有益的经验.我国不断地从网络节点接口、传送网结构、网络性能、光接口、设备和线路系统、网同步和网络管理等七个方面对国际建议进行跟踪研究,并结合我国SDH建设中遇到的问题,在两方面都取得了新的进展.文章将分三次连载SDH标准研究七个方面的最新进展.
Since 1994, ITU-T has formulated a series of SDH recommendations and some amendments have been made to those formulated before 1994. Our country started to introduce SDH since 1994 and has accumulated a wealth of experience on network construction and operation. Combined with the problems confronted in the SDH construction in our country, the international SDH recommendations are researched from the following seven aspects: network node interface, transport network architecture, network performance, optical interface, equipment and line system, network synchronization and network management. The new advance in this research is presented in this paper.
出处
《现代电信科技》
1999年第6期36-43,共8页
Modern Science & Technology of Telecommunications
