摘要
为在工程实践中ＳＯＮＥＴ（同步光缆网）和ＳＤＨ（同步数字系列）设备的有效互通提供理论依据，本文在传输速率、复用结构、映射方式、开销字节等方面对ＳＯＮＥＴ和ＳＤＨ之间的差异作了比较和研究，结果表明，ＳＯＮＥＴ和ＳＤＨ虽是不相同的数字传输系列，但两者间是相互兼容可以互通的。
The differences and compatibility between SONET and SDH are major prob-lems at present in synchronous transmission networking and equipment selec-tion. For providing a theoretical basis on effectively interworking between SONET and SDH in engineering practice. This paper compares and analyses the differences and compatibility between SONET and SDH in transport rates;multiplexing structure; payload mappings and overhead bytes,the results show that although SONET and SDH are not identical digital hierarchies,they are compatible and interworkable.
出处
《长春邮电学院学报》
1995年第2期37-41,共5页
Journal of Changchun Post and Telecommunication Institute
关键词
同步光缆网
同步数字系列
比较
multiplex
synchronous optical networks
transmission rate:map-ping
overhead
payload
