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  • 如何构建RS232 - RS485协议转换器?

    可以利用MAX3162双模收发器实现RS232与RS485之间的协议转换,电路如下: 协议转换方向由RTS信号(连接在R1IN)控制,R1OUT控制RS485的收发使能。单端RS232接收器输入信号转换成RS485差分输出;同样,RS485差分接收信号则转换成RS232 Tx单端输出。RS-232接收数据(R2IN)转换后通过RS-485的Z、Y发送输出;RS-485在A、B接收的差分信号则转换到RS…

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