论文部分内容阅读
上海－南京５６５Ｍｂ／ｓ光缆通信工程建成沪宁地区随着国民经济建设的迅速发展，迫切需要建立超高速、超大容量的通信传输系统。邮电部决定将上海一无锡的５６５Ｍｂ／ｓ光缆通信系统延伸至南京，在五次群系统基础上进行必要的技术改造和扩充，建设技术先进的上海－南京...
Shanghai - Nanjing 565Mb / s optical fiber communications project built Shanghai-Nanjing area With the rapid development of the national economy, there is an urgent need to establish ultra-high speed, large capacity communication transmission system. The Ministry of Posts and Telecommunications decided to extend the Shanghai-Wuxi 565Mb / s optical fiber communication system to Nanjing and carry out the necessary technological transformation and expansion on the basis of five-group systems to build a technologically advanced Shanghai-Nanjing ...