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In order to facilitate remote upgrade and maintenance of equipment, and improve the test efficiency, a method is present to design a generalized target range TT C system based on remote dynamic reconfiguration. Modules required are integrated in the front-end TT C unit equipment by PXI bus, and controlled by the back-end control computer. Telemetry data are processed by the back-end data processing computer in real time. The remote dynamic reconfiguration of some modules in the TT C unit equipment is realized on the System-on-a-Programmable-Chip, so that the same equipment could adapt to different RS422 communication protocols and adapt to the different TT C structures such as frequency modulation and spread spectrum modulation. The test result shows that the system has high reliability and the modules are reconfigured rapidly. This method is able to save resources effectively and has broad application prospects.