多种宽带接入方式在海南电力通信网中的应用

在论述了宽带传输专用通道（IP Over Optical）和在电力SDH上开通2M带宽专线（均利用光缆）直接实现宽带接入的方式之后，重点对仅利用现有资源和设备，通过租用中国电信2M电路和自建PCM终端接入设备复接以太网信号进行宽带传输的构想、实现原理、应用环境及工程应用实例进行了描述。该方式运行稳定，取得了较好的经济效益。

Application of several broadband access modes in Hainan electric power communication network

It is realized that the broadband signals are accessed at electric SDH directly by offering 2 M bandwidth private line service (utilized optical cable). Through utilize existing resource and equipments and rent the private lines, by self-making PCM terminal accession equipment, the idea that multiplexing the Ethernet signals to realize the broadband transmitting is achieved. The realizing principle, the application environment and the practice project are described too. This way runs steadily, has made preferable economy and productive benefit.