Operation Manual – PoEH3C S7500 Series Ethernet Switches Chapter 1 PoE Configuration1-1Chapter 1 PoE ConfigurationWhen configuring PoE, go to these sections for information you are interested in:z PoE Overviewz PoE Configurationz Displaying PoE Configurationz PoE Configuration Example1.1 PoE Overview1.1.1 Introduction to PoEPower over Ethernet (PoE) uses 10BaseT, 100Base-TX, and 1000Base-T twisted pairsto supply power to the remote powered devices (PD) in the network and implementpower supply and data transmission simultaneously.I. Advantages of PoEz Reliability: The centralized power supply provides backup convenience, unifiedmanagement, and safety.z Easy connection: Network terminals only require an Ethernet cable, but noexternal power supply.z Standard: PoE conforms to the 802.3af standard and uses a globally uniformpower interface;z Bright application prospect: PoE can be applied to IP phones, wireless accesspoints (APs), chargers for portable devices, card readers, cameras, and datacollection.II. PoE componentsz Power sourcing equipment (PSE): PSE is comprised of the power and the PSEfunctional module. It can implement PD detection, PD power information collection,PoE, power supply monitoring, and power-off for devices.z PD: PDs receive power from the PSE. PDs include standard PDs andnonstandard PDs. Standard PDs conform to the 802.3af standard, including IPphones, WLAN APs, and network cameras.z Power interface (PI): PIs are RJ45 interfaces, which connect PSE/PDs withnetwork cables.
