Multiway switch makes up case

The utility model relates to a multiway switch makes up case, this multiway switch makes up case comprises two data communication and DC power supply route, and every data communication and DC power supply route include that 7 ally oneself with 5 grades of mechanical switch, five direct current milliammeters and five unidirectional diode, and this 7 allies oneself with 5 grades of mechanical switch's five tunnel 7 and allies oneself with the corresponding stitch that stiff ends were connected to five 7 core communication interface respectively, five 7 five external electron pressure meters of core communication interface difference, the one end of five direct current milliammeters is external DC power supply's positive pole respectively, the other end respectively with the anodal of five unidirectional diode links to each other, five unidirectional diode's negative pole connect respectively in five 7 core communication interface's first stitch. The utility model provides a communication when power supply of electron pressure meter multichannel, current monitoring and computer and the score of many electron pressure, avoided having improved work efficiency because of switch incubator doors such as the power supply of operation electron pressure meter, playback data.