This product is a USB2.0 -compatible digital input / output unit that extends digital signals and contact output functions from the USB port of the computer.It is equipped with 8 points and 8 independent common relay output (C contact) 8 points (Contact) input input input (current sink output/current source output).It supports digital signal input of 12 to 24VDC.A compact design that does not select the installation location (188.0 (W) x 78.0 (d) x 30.5 (H)), install it on the floor and walls, and easily install on the board or in the device with DIN rail mounting brackets.increase.- [Extended module] Bus specification USB 2.0 Size N type Used connector - [Digital input/output] number of input points 8 points Output points 8 points two -way score - Response speed (input) 200μSec (max.) Response speed (output) ON 10msec (max.) / OFF 5msec (max.) < / td> Operate voltage (input) 12-24VDC Operate voltage (output) ~ 240VAC / ~ 28VDC < / td> input circuit Photoba plastic insulation input (compatible with sink and source output) Output circuit Power relay contact output (SPDT C contact type) Built -in power supply -