Poe? (Power supply by Ethernet) refers to the use of IP-based terminals (such as IP phones, wireless LAN access points AP, webcams, etc.). ) without changing the existing Ethernet Cat.5 wiring infrastructure.

While transmitting data signals, DC power supply technology can also be provided for such equipment. POE is also called power supply system based on LAN or active Ethernet, sometimes referred to as Ethernet power supply for short.

This is the latest standard specification for simultaneous transmission of data and power by using the existing standard Ethernet transmission cable, and maintains compatibility with existing Ethernet systems and users.

Extended data:

System composition of POE: A complete POE system includes two parts: power supply terminal equipment and power receiving terminal equipment. PSE devices are devices that supply power to Ethernet client devices. At the same time, it is also the manager of the whole POE Ethernet power supply process.

PD devices are PSE loads that receive power supply, that is, the client devices of POE system, such as IP phones, network security cameras, AP, PDA or mobile phone chargers and other Ethernet devices.

Based on IEEE 802.3af standard, they establish information connection about the connection, device type and power consumption level of the receiving device PD, and supply power to the PD through Ethernet according to PSE.