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TPS23753 并联两个网口后不能正常工作



最近在做一个POE供电的AP,用两个网口并在一起的POE供电,两个网口都可以正常工作。现在把两个AP用网线串联一起,然后再用POE交换机供电,这时候两个AP都不工作,必须先给一个供电后再串联到另一个AP才能正常工作,请问这是什么原因?谢谢 如图检测脚也不正常