Ukuze sazi ibanga eliphakeme lokudluliswa kwe-PoE, kufanele siqale sithole ukuthi yiziphi izinto ezibalulekile ezinquma ibanga eliphakeme.Eqinisweni, ukusebenzisa izintambo ezijwayelekile ze-Ethernet (ipheya esontekile) ukudlulisa amandla e-DC kungathwalwa ngebanga elide, elikhulu kakhulu kunebanga lokudlulisela lamasignali edatha.Ngakho-ke, ibanga eliphezulu lokudluliswa kwedatha liyisihluthulelo.

1. Ibanga eliphezulu lokudluliswa kwedatha yentambo yenethiwekhi

Sazi okwengeziwe mayelana nenethiwekhi siyazi ukuthi ipheya esontekile inebanga "elingenakunqotshwa" lokudlulisela "amamitha ayi-100".Kungakhathaliseki ukuthi ukupheya okusontekile kweSigaba 3 esinezinga lokudlulisela elingu-10M, ukupheya okusontiwe kweSigaba 5 esinezinga lokudlulisela elingu-100M, noma ukupheya okusontekile kweSigaba 6 esinezinga lokudlulisela elingu-1000M, ibanga elide kunawo wonke elisebenza ngempumelelo lingamamitha angu-100.

Ekucacisweni kwezintambo ezihlanganisiwe, kuyadingeka futhi ngokucacile ukuthi i-wiring enezingqimba akufanele idlule amamitha angu-90, futhi ubude obuphelele besixhumanisi akufanele budlule amamitha angu-100.Sekushiwo lokho, amamitha ayi-100 angumkhawulo we-Ethernet enezintambo, okuwubude besixhumanisi esisuka ekhadini lenethiwekhi ukuya kudivayisi yehabhu.

2. Ulithole kanjani ibanga elingamamitha ayi-100?

Yini ebangele umkhawulo ongaphezulu webanga lamamitha ayi-100 wokudlulisa wepheya esontekile?Lokhu kudinga ukucwiliswa okujulile ezimisweni ezijulile zomzimba zepheya elisontekile.Ukudluliswa kwenethiwekhi empeleni kungukudluliswa kwesignali yenethiwekhi kulayini wokubhanqa osontekile.Njengesignali ye-elekthronikhi, lapho idluliselwa emgqeni wokubhanqa osontekile, kufanele ithonywe ukumelana namandla, okuholela ekunciphiseni nasekuhlanekeni kwesignali yenethiwekhi.Lapho ukuncishiswa noma ukuhlanekezela kwesignali kufinyelela ezingeni elithile, ukudluliselwa okuphumelelayo nokuzinzile kwesiginali kuzothinteka.Ngakho-ke, ipheya esontekile inomkhawulo webanga lokudlulisela.

3. Ubuningi bebanga lekhebula ngesikhathi sokwakhiwa kwangempela

Kungabonakala kulokhu okungenhla ukuthi kungani ubude obukhulu bekhebula lenethiwekhi akufanele budlule amamitha angu-100 uma usebenzisa ukunikezwa kwamandla kwe-PoE.Kodwa-ke, ekwakhiweni kwangempela, ukuze kuqinisekiswe ikhwalithi yephrojekthi, ngokuvamile kuthatha amamitha angu-80-90.

Sicela uqaphele ukuthi ibanga lokudlulisela lapha libhekisela kusilinganiso esiphezulu, esifana ne-100M.Uma izinga lehliswa libe ngu-10M, ibanga lokudlulisela ngokuvamile linganwetshwa libe ngamamitha angu-150-200 (ngokuya ngekhwalithi yekhebula lenethiwekhi).Ngakho-ke, ibanga lokudlulisa amandla e-PoE alinqunywa ubuchwepheshe be-PoE, kodwa ngohlobo nekhwalithi yekhebula lenethiwekhi.