POWERED DEVICE AND POWER DISTRIBUTION SYSTEM COMPRISING THE POWERED DEVICE

摘要

This ID describes a technique for a Power over Ethernet PD (Powered Device) to discover the port injection voltage the PSE (Power Providing Equipment) is using. This is required to determine the maximum current the PD will be able to draw without being cut off by the PSE. This in turn is used to extract the maximum possible power from the PSE.