This product is a PCI Express board that performs the input / output of the external device and the digital signal.It is a 12-24VDC photocoupla instruction type equipped with 16 points of photocapula insulation input and 16 points of photocapula in insulation open collector output.All input signals can be used as interrupts.It is equipped with a power supply for driving (12VDC), a digital filter function, and a protective circuit of the output transistor (surge voltage protection, overcurrent protection).Compatible with Low Profile Size Slot, replacing the attached bracket to support the standard size slot.- [Extended module] Bus specification PCI Express Size Low Profile Used connector 1X miniature ribbon 50-pin [Digital input/output] number of input points 16 points Output points 16 points two -way score - Response speed (input) 200μSec (max.) Response speed (output) 200μSec (max.) Operate voltage (input) 12-24VDC Operate voltage (output) 12-24VDC input circuit Photoba plastic insulation input (compatible with sink output) Output circuit Photoba Plastic Insulation Open Collector Output (Sink Type) Built -in power supply 12VDC