This product is a PCI Express bus compatible board that extends the input / output function of the digital signal on a personal computer.It is equipped with 16 non -insulating TTL level input and 16 non -insulated open collector output, and can be used as interrupts.In addition, it is equipped with a digital filter function that prevents incorrect recognition of input signal.A Windows/Linux driver is attached.- [Extended module] Bus specification PCI Express Size Short size Used connector D-SUB 37-pin (female) [Digital input/output] number of input points 16 points Output points 16 points two -way score - Response speed (input) 200nsec (max.) Response speed (output) 200nsec (max.) Operate voltage (input) 5VDC-TTL Operate voltage (output) 5VDC-TTL input circuit Non -insulated TTL level input (negative portion) Output circuit Non -insulated TTL Open Collector Output (negative theory) Built -in power supply -