This product is an interface board based on the PCI Express bus that performs a two -way input / output of LVTTL -level digital signals.Up to 48 points can be input / output with one piece.You can select input or output in eight -point units with application software.By using the attached driver library [API-PAC (W32)], you can create Windows application software in various programming languages that support Win32api functions such as Visual Basic and Visual C ++.- [Extended module] Bus specification PCI Express Size Low Profile Used connector 1x 0.8mm pitch 68-pin (female) [Digital input/output] number of input points - Output points - two -way score 48 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 -