A auxiliary device for issued appliances program and upgraded

The utility model discloses an auxiliary device for issued appliances program and upgraded, this auxiliary device include a serial module, the 2nd serial module, treater, memory and stepup transformer, a serial module's first end links to each other with the output of outside host computer, and the second end links to each other with the first end of treater, the second end of treater links to each other with the memory, and the third end links to each other with the 2nd serial module's first end, the 2nd serial module's second end links to each other with the first end of the equipment of waiting to upgrade, the output of stepup transformer links to each other with the power source of the equipment of waiting to upgrade, the utility model provides an auxiliary device combines outside hostcomputer can realize in any place of having the internet, need not tear the machine open and to carry out program upgrade, inquiry and modification device parameter to issue equipment, and convenientoperation need not to bur