论文部分内容阅读
目前,接入网已经变成电信网的重要一环,它不仅在投资中所占的比重不断加大,而且直接影响着电信的普及和未来的发展.为了充分利用原有资源,同时兼顾经济性和对未来技术进步及业务发展的适应性,很多国家相继提出了发展接入网的目标、措施和步骤.在我国,接入网技术及其发展受到了各地邮电部门较大的关注,特别是大城市接入网的建设已在进行当中.
At present, the access network has become an important part of the telecommunications network, which not only continues to increase the proportion of investment, but also directly affects the popularization of telecommunications and future development.In order to make full use of existing resources, taking into account the economy And adaptability to future technological progress and business development, many countries have put forward the goals, measures and steps for the development of the access network in succession.In our country, the access network technology and its development are greatly concerned by the post and telecommunications departments all over the world, especially The construction of a metropolitan access network is already in progress.