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Subject : 
RS232的特点
 
Description : 
RS232除了实现双向通信之外,RS232还能做什么?
 
Solution : 
RS232可用于自动切换、限制前面板按钮的使用以及检查每个端口的电源状态。当正在使用的端口关闭时,当前端口将切换到下一个可用端口。
 
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