求翻译：端口有效连接存在，相应端口的连接指示灯会亮起，例如通过网线侦测到远端网络设备。如果指示灯未亮起请参考附录3查找问题原因。是什么意思？

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There is port connection is valid, the port of the connection indicator will light up, for example via a network cable to the remote detection network devices. If the indicator is not lit please refer to the appendix 3 find the cause of the problem.

The port effective connection existence, the corresponding port connection instruction lantern festival shines, for example detects the far-end network equipment through the mesh wire.If the indicating lamp has not shone please do refer to the appendix 3 search question reason.

Port a valid connection exists, the corresponding port connection light lit, for example by a wired remote network device was detected. If the led is not lit refer to Appendix 3 to find the cause of the problem.

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