ThePoE beddelkawaa abeddelokaas oo taageera korantada fiilada shabakada. Marka la barbardhigo kuwa caadiga ahbeddelo, Terminalka korontadu (sida AP, kamarada dhijitaalka ah, iwm.) uma baahna in lagu xidho koronto, iyo kalsoonida shabakada oo dhan ayaa ka sareysa.
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 hawlgalka caadiga ah ee shabakada hadda jirta iyadoo la hubinayo amniga fiilooyinka habaysan ee jira, hoos u dhigista kharashka.
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 awooda iyo arrimaha xakamaynta nidaamka fog, oo isku xidharouter, u beddela, iyo xudunta u ah talefannada IP, nidaamyada amniga, iyo meelaha laga galo LAN-ka bilaa-waayirka ah ee 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.
