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No! If the down-link port of the main body is directly connected to the PC, it is easy to burn the PC network card. If you really need to connect to the PC for testing, you can turn off the PoE function before connecting to the PC. The command to disable the power supply function of the down-link port of the main unit is as follows: [WX2510H-wlan-ap-1020]poe wtu-port 2 disable //2 is the down-link port number