Multi-port power supply multiplexing output control board card

The utility model aims to provide the multi-port power supply multiplexing output control board card which realizes input and output of switching signals, does not need to be superposed and used, and can be compatible with different input power supply specifications. The output control board card comprises a control module and an IO expansion module, a signal port of the control module is connected with a corresponding port of the IO expansion module, the control module is connected with an upper computer, and the output control board card for multi-port power supply multiplexing further comprises an input module and an output module which are connected with different voltage specifications. A plurality of IO ports of the IO expansion module are respectively connected to the input module and the output module, the input module is connected with an external sensor, and the output module is connected with an external electromagnetic valve. The control board card is applied to the technical field of control boar