1-11 PoE ConfigurationWhen configuring PoE, go to these sections for information you are interested in:z PoE Overviewz PoE Configuration Task Listz Configuring the PoE Interfacez Configuring PoE Power Managementz Configuring the PoE Monitoring Functionz Upgrading PSE Processing Software Onlinez Configuring a PD Disconnection Detection Modez Enabling the PSE to Detect Nonstandard PDsz Displaying and Maintaining PoEz PoE Configuration Examplez Troubleshooting PoEPoE OverviewIntroduction to PoEPower over Ethernet (PoE) means that power sourcing equipment (PSE) supplies power to powereddevices (PD) such as IP telephone, wireless LAN access point, and web camera from Ethernetinterfaces through twisted pair cables.Advantagesz Reliable: Power is supplied in a centralized way so that it is very convenient to provide a backuppower supply.z Easy to connect: A network terminal requires only one Ethernet cable, but no external powersupply.z Standard: In compliance with IEEE 802.3af, and a globally uniform power interface is adopted.z Promising: It can be applied to IP telephones, wireless LAN access points, portable chargers, cardreaders, web cameras, and data collectors.CompositionA PoE system consists of PoE power, PSE, and PD.z PoE powerThe whole PoE system is powered by the PoE power, which includes external PoE power and internalPoE power.z PSEPSE detecting that a PD is unplugged, the PSE stops supplying power to the PD.An Ethernet interface with the PoE capability is called PoE interface. Currently, a PoE interface can bean FE or GE interface.z PD
