Ngokuthuthuka okuqhubekayo kobuchwepheshe be-PoE, ukushintsha kwe-PoE okwamanje asesigabeni esivuthiwe kakhulu, nokho, ngenxa yemakethe yokuqapha yamanje ngaphansi kwengcindezi yezindleko, ikhwalithi yokushintshwa kwe-PoE ekhethiwe noma izintambo ziphansi kakhulu, noma umklamo wohlelo ngokwalo. kungenangqondo, okuzoholela ekuthwaleni umsebenzi onzima ikakhulukazi wokunakekela amaphrojekthi okuphakelwa kukagesi we-PoE. Iphrojekthi yokuqapha inethiwekhi ihlukile kuzintambo ezididiyelwe zenethiwekhi ezijwayelekile, ivolumu yokudluliswa kwedatha iphezulu, amandla aphezulu, futhi idinga umsebenzi ongaphazamiseki ubusuku nemini, ngakho umbono wokuthi ukunikezwa kwamandla kwe-PoE akuzinzile. Kodwa ingabe ukunikezwa kwamandla kwe-POE akuzinzile ngempela? Ake sethule ukuthi amaswishi e-PoE angaxhunywa kanjani ngokuzinzile futhi yiziphi izinzuzo zokuphepha zokushintshwa kwe-PoE? Ake sibheke!

Ungaqinisekisa kanjani ukuxhumana okuzinzile kokushintshwa kwe-PoE?

① Sebenzisa amaswishi e-PoE ajwayelekile. Amaswishi e-PoE angajwayelekile awanawo amaphrothokholi e-IEEE802.3af noma i-IEEE802.3at. Kungakhathalekile ukuthi idivayisi yetheminali iyakusekela yini ukuphakelwa kwamandla kwe-PoE, ukuphoqelela ukunikezwa kwamandla okukhiphayo okungu-48V kuzolimaza idivayisi yetheminali. Ngakho-ke, ukusetshenziswa kokushintsha kwe-PoE okujwayelekile ukuze kuxhunywe kuyisinyathelo sokuqala sokuqinisekisa ukusebenza okuzinzile kwesistimu yenethiwekhi.

②Sebenzisa intambo yesichibi efanelekayo.Gwema ukuthenga izintambo zesichibi ezingajwayelekile zekhwalithi engafaneleki. Ngenxa yokuthi azikhiqizwa ngokuhambisana ngokuqinile nezidingo zezintambo zenethiwekhi ezijwayelekile, insimbi egqoke ithusi/i-aluminium/insimbi ingase ivele. Ngakho-ke, ukumelana kwekhebula lenethiwekhi kuzoba kukhulu futhi akufanelekile ukunikezwa kwamandla ka-PoE.

③Nquma ukusetshenziswa kwamandla kwemishini yetheminali. Izindinganiso zokushintshwa kwe-PoE ezihlukene zinamandla ahlukene okukhiphayo, njengalokhu: I-IEEE802.3af ukushintsha okujwayelekile kwe-POE kunganikeza amandla kumishini esebenzisa amandla amakhulu angeqi ku-15.4W; Iswishi ye-PoE evumelana nezinga le-IEEE802.3at inganikeza amandla kumadivayisi lawo amandla awo aphezulu angeqi ku-30W. Ngokuya ngebanga lokudlulisela nokulahlekelwa kwempahla, ukusetshenziswa kwamandla okuphezulu okunganikezwa kungase kube phansi.

④Cacisa inani lemishini yetheminali. Ngaphansi kwezinga le-IEEE802.3af, uma isamba samandla we-PoE weswishi ye-PoE enezimbobo ezingama-24 ifinyelela ku-370W, ingahlinzeka ngezimbobo ezingama-24 (370/15.4=24),; Kodwa uma ibalwa ngokwezinga le-IEEE802.3at lokunikezwa kwamandla okukhulu kwembobo eyodwa okungu-30W, ngesikhathi esifanayo, inganikeza amandla kuphela ezimbobeni eziyi-12 kakhulu (370/30=12).

⑤ Thola ibanga lokudlulisela. Ibanga lokuphakelwa kwamandla kweswishi ye-PoE linqunywa ibanga lokudlulisela lesiginali yedatha. Uma izinga lokudlulisa lingu-100Mbps, ibanga eliphakeme elingadluliswa isignali yedatha ngu-100m. Ngakho-ke, ukwahlulela ibanga lokudlulisela ngokusekelwe kuzinga lokudlulisela kungenye yezinto eziqinisekisa ukuxhumana okuzinzile kwe-switch ye-PoE.

⑥Ine-IETF RFC2544 ejwayelekile. Leli zinga lingahlinzeka ngendlela yokuhlola ibhentshimakhi yokuphazamiseka kwesevisi ukuze kuhlolwe ukusebenza kwempahla yokuxhumanisa inethiwekhi, inani lamafreyimu abuyela emuva, izinga lokulahlekelwa kwephakethe nokusebenza kokubambezeleka, nokuqapha ukuxhumeka okuzinzile kwamaswishi e-PoE.