Light source IO board

The utility model relates to a light source IO (input/output) board, which is characterized in that an Ethernet chip is respectively connected with an RJ45 network port and an MCU (microprogrammed control unit) chip, and the RJ45 network port is connected with an upper computer; the MCU chip is connected with the optocoupler isolation circuit so as to control input and output of signals. The optical coupler isolation circuit is connected with an input port and an output port of the IO equipment so as to perform level conversion between a pin of the MCU chip and the input port and the output port; the optocoupler isolation circuit is further connected with the thyristor circuit so as to be connected with the light source output port through the thyristor circuit, so that the voltage of the light source circuit is controlled, and the light source is driven. An existing light source controller and an IO board are integrated, and the functions of light source control and IO communication are achieved only through