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UN 232-MPI连屏适配器，延长MPI端的话，延长针脚为哪几个

Time： 2016-07-26

2、3、7、8，适配器需要CPU为其供电，

2（24V电源地）、7（24V电源正）给适配器提供24V电源，

3、8是RS485通讯针脚

  


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