What does the acronym P.O.E. stand for?

The acronym P.O.E. stands for Power over Ethernet. This technology allows electrical power to be transmitted along with data over standard Ethernet cables. This is particularly useful in various applications, such as powering network devices like IP cameras, VoIP phones, and wireless access points, eliminating the need for separate power supplies for each device.

Power over Ethernet simplifies installation and reduces cabling costs by allowing one cable to handle both data and power. The technology works by using two of the four pairs of wires in a standard Ethernet cable to supply power while the remaining pairs are used for data transmission. This ability to deliver power over existing network infrastructure makes it a popular choice in many modern networking scenarios.

The other options do not represent the correct meaning of the acronym. "Power on Ethernet," "Protection over Ethernet," and "Protocol on Ethernet" do not accurately describe the functionality or purpose of the technology related to P.O.E. Therefore, the correct answer, Power over Ethernet, highlights the dual use of Ethernet cables for both data communication and power delivery, showcasing its importance in the field of networking and electrical applications.