So, just what is Power over Ethernet?

So, what is Power over Ethernet?

This question was answered by Akshay Thakur, business development manager of the industries and IoT product group at Cisco.

Power over Ethernet (PoE) is the ability to deliver 48 VDC of power over the same copper cable as is used for Ethernet networks to drive low-power devices such as LED luminaires.

The two primary elements that are required in order to implement PoE are:

  • Power sourcing equipment (PSE) - the LAN (local area network) switch or other network switch that provides the source power delivered over the Ethernet network.
  • The powered device (PD) - the end device, such as a luminaire, that requires the power from the Ethernet cable for its operation.

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