A USB2.0 -compatible digital input / output unit that extends the input / output function of the digital signal on a personal computer.It supports the input / output of 12VDC digital signals.Equipped with 16 points of photocapula insulation input (current sink output) 16 points and photocapula insulating open collector output (current sink type).Up to 16 of the input signals can be used as interrupts.In addition, it is equipped with a power supply for driving a photocoupler (12VDC), a digital filter function, and a protective circuit of the output transistor (surge voltage protection, overcurrent protection).- [Extended module] Bus specification USB 2.0 Size X type 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) 200μSec (max.) Response speed (output) 200μSec (max.) Operate voltage (input) 12VDC Operate voltage (output) 12VDC 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