At the beginning of this year, the 1200 door Tongli JP10-BTS digital SPC exchange system and its supporting equipment of the "Aerospace Information Research Institute of the Chinese Academy of Sciences" have been installed and debugged day and night by our technicians, and now they have all been put into operation and put into use, which provides the "Aerospace Information Research Institute of the Chinese Academy of Sciences" with highly reliable, stable and high-quality communication information services and communication information security, and also contributes to the development of aerospace information in China!