The remote monitoring system based on MODEM

This paper introduces a remote monitoring and controlling system for the power supply system linked by Public Swiched Telephone Network(PSTN).The system is composed of a main computer?modem?SPC exchange-machine and singlechip.The system is designed in distributing structure,it can monitor and control a lot of stations of the power supply at real time,and resolved the program of electric devices maintenance.The system operation is simple and credible by using monitoring system in power supply system of SPC exchange-machine basic stations and radio-communication basic stations.