This product is a PCI bus -based interface board that performs digital signals input and output.12-24 VDC digital signals can be input and output with an inverted digital input / output board.You can input up to 16 points and output up to 16 points with one piece.This product is a photocapula insulating input (current source output compatible) for input, and a photocoupler insulating output (current sorrel type) for output.Attached Windows version, Linux version driver (API-PAC (W32)).- [Extended module] Bus specification PCI Size Short size 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) 12-24VDC Operate voltage (output) 12-24VDC input circuit Photoba plastic insulation input (source output compatible) Output circuit Photoba plastic insulation output (source type) Built -in power supply -