FIELD: electrical engineering.
SUBSTANCE: invention relates to the field of power technologies over an Ethernet network. Power method and a powered device for automatically adjusting the level of the power load, the method comprising: recognizing the power supply (PSE) to the powered device (PD) after the process of determining the level and obtaining the recognition result; when the recognition result is that there is no power supply to the PD, the PD power level is lowered.
EFFECT: embodiment of the present invention improves the determination of the power level of the power system over an Ethernet network (POE), achieves the goal of automatically adjusting the power level according to the power supply power of the PSE, maximizes the use of power PSE power supply, allows you to work more number of terminal devices and increases the utilization rate of the entire POE system.
10 cl, 6 dwg
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