The utility model discloses a protocol conversion ware based on contex A8 treater, including the applied scene that is used for confirming the device, gather headend equipment and export the typical application scheme module of giving the rear end main website with its conversion, a hardware architecture design module that is used for carrying out the data interaction with other modules, the power module of electric energy is provided for each module through power switching over, be used for storage operation system and application's storage, carry out the nand flash module of data interaction, the IO operation of realization data through serial bus and main control chip, a net gape module for realizing the network communication, the serial module who changes and export transmission signal, and the application software module of realization data interaction and sharing. The utility model discloses a serial module and net gape module convert a standards code into through the inside arrangement of protocol conversion ware and spread for other application system of rear end from the sub - system data of intelligent front -end collection, reach to convert off -gauge terminal equipment dispersion control into centralized monitoring.