The communication management machine has multiple downstream communication interfaces and one or more upstream network interfaces, which are equivalent to front-end computers, used to organize and summarize the communication data of all intelligent monitoring/protection devices in a substation, and then send them to the upper-level master in real time. Station system, complete remote signaling and remote measurement functions. On the other hand, it receives the commands issued by the background and forwards them to the intelligent series units in the substation to complete the remote control of the opening and closing of the switchgear in the plant station or the parameter setting of the device, and realize the functions of remote control and remote adjustment. At the same time, it should also be equipped with multiple serial interfaces to communicate with other smart devices in the factory. The communication management machine is generally used in substations, dispatching stations, and the communication management machine controls the downstream equipment through the control platform to realize the collection of information such as remote signaling, telemetry, and remote control.