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湖南电力系统原有的数字微波通信网络实际上是许多点对点的由省调至各局、厂的ＰＣＭ基群对，是一个模拟系统。为满足会议电视系统对通信网络的技术要求，开发建设了湖南电力综合数字通信网，湖南电力综合数字通信网以数字交叉连接设备为中心，连接了８０台节点设备，全网时钟同步，实现网络管理。用很少的投资完成了由模拟通信网络向同步数字通信网络的升级。覆盖全省的会议电视系统的正常运行表明湖南电力综合数字通信网达到了ＤＤＮ的基本技术要求。
In fact, the original digital microwave communication network in Hunan Power System is a simulation system that is a lot of point-to-point PCM-based pairs transferred from provinces to offices and plants. In order to meet the technical requirements of the teleconferencing system for communication networks, the Hunan Electric Power Integrated Digital Communication Network was developed and built. Hunan Digital Integrated Communication Network, with digital cross-connect equipment as the center, connected 80 sets of node equipment, clocked the entire network and realized network management. With a small investment to complete the analog communications network to the synchronous digital communications network upgrade. The normal operation of the conferencing TV system covering the whole province shows that Hunan Electric Power Integrated Digital Communication Network has reached the basic technical requirements of DDN.