Hi there, Community friends! This time, I will share with you about PoE. Hope you
like it!
Power over Ethernet (PoE) provides power through the Ethernet. It is also called Power over LAN (PoL) or active Ethernet.
PoE involves the following devices:
PSE: Power-sourcing Equipment
PD: Powered Device
With wide application of IP phones, network video monitoring, and wireless Ethernet networks, the power supply requirements on the Ethernet become urgent. In most situations, access point devices need DC power supply, but access point devices are often installed on the ceiling that has a long distance from the ground. The nearby proper power socket is difficult to find. Even if the proper power socket is available, the network administrator finds it hard to install the converter of the AC and DC power required by access point devices. On large-scale LANs, the administrators need to manage multiple access point devices that require uniform power supply and management. In this case, power supply management is difficult. The PoE function addresses this problem.
The PoE technology is used on the wired Ethernet and is most widely used on LANs. This technology transmits power coupled with data to terminals through cables or transmits power without data through idle lines.
This technology provides power on the 10Base-T, 100Base-TX, or 1000Base-T Ethernet at a distance of up to 100 m. PoE can be used to effectively provide centralized power for terminals such as IP phones, Access Points (APs), chargers of portable devices, POS machines, cameras, and data collection devices. Terminals are powered when they access the network. Therefore, the indoor cabling of power supply is not required.
The costs on the cabling of power supply are saved. The power supply for IP cameras, video servers, and code converters, can be installed flexibly. In addition, the Uninterruptible Power Supply (UPS) ensures uninterrupted power supply for the devices.
That's all, I welcome everyone to leave a message and exchange in the comment area!
