论文部分内容阅读
这里介绍一种简单的电路来监控RS-232C的接收和发送数据的工作的方法(如图1所示)。此电路由两个双向开关组成,每个开关由有两个并联但方向相反的光电耦合器和两个二极
Here is a simple circuit to monitor the RS-232C to receive and send data to work (as shown in Figure 1). The circuit consists of two bidirectional switches, each switch consists of two parallel but opposite direction of the optocoupler and two diodes