I/O card with RS-232 interface consists of D/A, A/D, I/O, high-speed light-coupled, electric level transition, RS-232 interface and micro-controller, and its testing functions are realized with LabWin/CVI.

• 含RS-232接口的I/O卡由D/A、I/O、高速光隔、电平转换、RS-232串口和微控制器组成,其测试功能由LabWin/CVI软件实现。