an interface with universal serial communication comprises a switching device , a medium device , and a data restoring device for transmitting the data and obtaining the serial communication via one signal line that is inter - strung by afore devices . by simplifying such communication device , the compatibility thereof could be enhanced . moreover , during the data transmission , computation made by an error coefficient and an error beyond value in the switching device allows the transmitted data to be kept within an acceptable noise value , so that the accuracy of the data could be assured .