ThePoE beddelkawaa furaha taageerta korantada fiilada shabakadda.Marka la barbar dhigo dareemaha caadiga ah, terminalka korontadu (sida AP, kamarada dhijitaalka ah, iwm) uma baahna in lagu xidho koronto, kalsoonida shabakada oo dhanna waa sarraysaa.
Dulmar guud ee Power Over Ethernet (POE) POE (Power Over Ethernet) waxaa loola jeedaa isticmaalka terminaalka IP-ku-saleysan (sida teleefannada IP-ga, meelaha LAN-ka ee wireless-ka ah (AP-yada, kamaradaha shabakadda, iwm.) waxay ku siin karaan tignoolajiyada korontada DC Qalabka marka la gudbinayo calaamadaha xogta Tiknoolajiyada POE waxay xaqiijin kartaa shaqada caadiga ah ee shabakada hadda jirta iyadoo la hubinayo amniga fiilooyinka habaysan ee jira, iyadoo la yareynayo kharashyada.
POE waxa kale oo loo yaqaan nidaamka sahayda korantada ee ku salaysan shabakada degaanka (POL, Power over LAN) ama Active Ethernet (Active Ethernet), mararka qaarkood sidoo kale loo yaqaan Power over Ethernet gaaban.Tani waa isticmaalka fiilooyinka gudbinta Ethernet ee jira si loo gudbiyo xogta iyo awoodda korantada isku mar Heerarka iyo qeexitaannada ugu dambeeyay, iyo in la ilaaliyo waafaqsanaanta nidaamyada iyo isticmaalayaasha Ethernet jira.IEEE
Heerka 802.3af waa halbeeg cusub oo ku salaysan POE ee nidaamka sahayda korontada ee Ethernet.Waxay ku darsataa jaangooyooyin la xidhiidha sahay koronto toos ah iyada oo loo marayo fiilada shabakadda iyada oo ku saleysan IEEE802.3.Waa kordhinta heerka Ethernet ee jira iyo heerka ugu horreeya ee awood qaybinta caalamiga ah.heerka.
IEEE waxay bilawday inay horumariso heerka 1999kii, iibiyeyaashi ugu horeyayna waxay ahaayeen 3Com, Intel, PowerDsine, Nortel, Mitel, iyo Semiconductor National.Si kastaba ha ahaatee, cilladaha heerkan ayaa xaddidayay ballaarinta suuqa.Ilaa Juun 2003, IEEE waxay ansixisay heerka 802.3af, kaas oo si cad u qeexaya ogaanshaha awoodda iyo arrimaha xakamaynta nidaamka fog, oo ku xidha router-yada, furayaasha, iyo xarumaha telefoonnada IP, nidaamyada amniga, iyo dhibcaha gelitaanka LAN ee wireless iyada oo loo marayo fiilooyinka Ethernet.Habka bixinta korantada ee qalabka waa la nidaamiyay.Horumarinta IEEE802.3af waxaa ka mid ah dadaalka khubaro badan oo shirkado ah, taas oo sidoo kale u oggolaanaysa in heerka la tijaabiyo dhammaan dhinacyada.
