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电力系统通信专网的规模在日益扩大和发展 ,通信方式从音频电缆、电力载波机和模拟微波通信发展到光纤通信、数字微波通信 ,甚至采用卫星通信。话路传输方式也从纵横制交换机、模拟远动传输通道发展到数字程控交换机、数据传输远动信息、计算机 MIS数据传输。在电力系统通信专
The scale of the power system communication private network is expanding and developing. The communication mode has been developed from audio cables, power line carriers and analog microwave communication to optical fiber communication, digital microwave communication and even satellite communication. Session transmission also from the crossbar switch, analog remote transmission channel development to digital program-controlled switches, remote data transmission, computer MIS data transmission. In the power system communications