It is a USB2.0 -compatible digital input and output terminal that easily performs a two -way input / output of the digital signal (LVTTL (3.3V) level) by connecting to a USB interface of a personal computer.Up to 24 points can be used for digital signals and output.By using the attached driver library [API-USBP (WDM)], you can create application software for Windows using various programming languages that support Win32api functions such as Visual Basic and Visual C ++.。- [Extended module] Bus specification USB 2.0 Size Y type Used connector 2X Screw terminal stand 14-pin [Digital input/output] number of input points - Output points - two -way score 24 points Response speed (input) 200nsec (max.) Response speed (output) 200nsec (max.) Operate voltage (input) 3.3VDC-LVTTL Operate voltage (output) 3.3VDC-LVTTL input circuit Non -insulated LVTTL level input (positive logic) Output circuit Non -insulation LVTTL level output (positive logic) Built -in power supply -