1-11 PoE ConfigurationPoE OverviewIntroduction to PoEPower over Ethernet (PoE)-enabled devices use twisted pairs through electrical ports to supply powerto the remote powered devices (PD) in the network and implement power supply and data transmissionsimultaneously.Advantages of PoEz Reliability: The centralized power supply provides backup convenience, unified management, andsafety.z Easy connection: Network terminals only require an Ethernet cable, but no external power supply.z Standard: PoE conforms to the 802.3af standard and uses a globally uniform power interfaces;z Bright application prospect: PoE can be applied to IP phones, wireless access points (APs),chargers for portable devices, card readers, network cameras, and data collection system.PoE componentsPoE consists of three components: power sourcing equipment (PSE), PD, and power interface (PI).z PSE: PSE is comprised of the power and the PSE functional module. It can implement PDdetection, PD power information collection, PoE, power supply monitoring, and power-off fordevices.z PD: PDs receive power from the PSE. PDs include standard PDs and nonstandard PDs. StandardPDs conform to the 802.3af standard, including IP phones, Wireless APs, network cameras and soon.z PI: PIs are RJ45 interfaces which connect PSE/PDs to network cables.PoE Features Supported by S5100-SI/EIPoE-enabled S5100-SI/EI series Ethernet switches include:z S5100-SI/EI-8P-PWR-SIz S5100-SI/EI-16P-PWR-EIz S5100-SI/EI-26P-PWR-SIz S5100-SI/EI-50P-PWR-EITable 1-1 Power supply parameters of PoE switchesSwitchInputpowersupplyNumber ofelectricalportssupplyingpowerMaximumPoEdistanceMaximumpowerprovided byeachelectricalportTotalMaximumPoE outputpowerS5100-8P-PWR-EI AC input 8 100 m 15400 mW 65 W
