Izindaba
I-RJ-45 PoE: Inika Amandla Uxhumo Lwakho Lwe-Ethernet
2024-04-21
Imbobo ye-RJ-45 Ethernet iyisixhumi esibonakalayo esivumela ukuxhumana kwamadivayisi enethiwekhi kusetshenziswa izintambo eziphothiwe. Iklanyelwe ukuthwala izintambo eziyisishiyagalombili, ezisetshenziselwa ukudlulisa nokwamukela idatha. Imbobo ngokuvamile itholakala ngemuva kwemishini yokuxhumana futhi isetshenziselwa ukusungula uxhumano lwezintambo kunethiwekhi yendawo (LAN) noma i-inthanethi.
Amandla phezu kwe-Ethernet (PoE) ubuchwepheshe obuvumela ukudluliswa kwedatha kanye namandla kagesi ngekhebula ye-Ethernet efanayo. Lokhu kwenziwa kwenzeke ngokusebenzisa izintambo ezingasetshenzisiwe kukhebula ye-Ethernet ukuze kuthwale amandla kagesi, okuqeda isidingo sekhebula lamandla elihlukile. Amadivayisi asekela i-PoE anganikwa amandla ngokuqondile kusukela kumbobo ye-Ethernet, enze ukufakwa kube lula futhi kuncishiswe isidingo sezindawo zokuphuma zikagesi ezengeziwe.
Uma kukhulunywa nge-RJ-45 PoE, imbobo ye-Ethernet ayisetshenziselwa ukudlulisa idatha kuphela kodwa futhi nokuletha amandla kumadivayisi ahambisanayo. Lokhu kubaluleke kakhulu kumadivayisi afana namakhamera we-IP, izindawo zokufinyelela ezingenantambo, namafoni e-VoIP, anganikwa amandla kalula kusetshenziswa intambo ye-Ethernet eyodwa. I-RJ-45 PoE ilinganiswe ngaphansi kwe-IEEE 802.3af ne-IEEE 802.3at, echaza imininingwane yobuchwepheshe yokuletha amandla nge-Ethernet.
Uma ihlanganiswe nobuchwepheshe be-PoE, iba isixhumi esibonakalayo esisebenza ngezindlela eziningi esingaletha amandla kumadivayisi ahambisanayo, senze ukufakwa kube lula futhi kunciphise ukufutha kwekhebula. Kungakhathaliseki ukuthi usetha inethiwekhi yasekhaya noma ingqalasizinda yezohwebo, i-RJ-45 PoE inikeza isixazululo esilula nesisebenzayo sokunika amandla amadivayisi akho axhumeke ku-Ethernet.