I-PoE ubuchwepheshe obuhlinzeka ngamandla kanye nokudluliswa kwedatha ngezintambo zenethiwekhi.Kudingeka ikhebula lenethiwekhi eyodwa kuphela ukuze uxhume endaweni yekhamera ye-PoE, ngaphandle kwesidingo sezintambo zamandla ezengeziwe.
Idivayisi ye-PSE iyithuluzi elinikeza amandla kudivayisi yeklayenti le-Ethernet, futhi lingumphathi wawo wonke amandla e-POE phezu kwenqubo ye-Ethernet.Idivayisi ye-PD ingumthwalo we-PSE othola amandla, okungukuthi, idivayisi yeklayenti yohlelo lwe-POE, njengefoni ye-IP, ikhamera yokuphepha yenethiwekhi, i-AP, umsizi womuntu siqu wedijithali noma ishaja yeselula kanye namanye amadivayisi amaningi e-Ethernet (empeleni, noma iyiphi idivayisi enamandla angaphansi kuka-13W ingathola amandla ahambisanayo kusokhethi i-RJ45).Laba ababili basungula ukuxhumana kolwazi okusekelwe kuzinga le-IEEE 802.3af mayelana nesimo sokuxhuma, uhlobo lwedivayisi, ileveli yokusetshenziswa kwamandla, nezinye izici ze-PD yedivayisi yokugcina eyamukelayo, futhi zisebenzisa lokhu njengesisekelo se-PSE ukunika amandla i-PD nge-Ethernet.
Lapho ukhetha ukushintshwa kwe-PoE, amaphuzu alandelayo adinga ukucatshangelwa:
1. Amandla embobo eyodwa
Qinisekisa ukuthi amandla embobo eyodwa ahlangabezana namandla amakhulu anoma iyiphi i-IPC enamathiselwe kuswishi noma cha.Uma kunjalo, khetha izicaciso zeswishi ngokusekelwe kubukhulu bamandla e-IPC.
Amandla e-PoE IPC evamile aweqi ku-10W, ngakho-ke iswishi idinga kuphela ukusekela okungu-802.3af.Kodwa uma isidingo samandla seminye imishini yebhola enesivinini esiphezulu sicishe sibe ngu-20W, noma uma amandla amanye ama-APs okufinyelela angenantambo engaphezulu, khona-ke iswishi idinga ukusekela u-802.3at.
Okulandelayo amandla okukhipha ahambisana nalobu buchwepheshe obubili:
2. Ukunikezwa kwamandla okuphezulu kwesishintshi
izidingo, futhi ucabange amandla ayo yonke i-IPC ngesikhathi sokuklama.Umkhawulo wamandla ophumayo weswishi udinga ukuba mkhulu kunesamba sawo wonke amandla e-IPC.
3. Uhlobo lokuphakelwa kwamandla
Asikho isidingo sokucabangela ukusebenzisa intambo yenethiwekhi eyisishiyagalombili ukuze udlulise.
Uma kuyintambo yenethiwekhi ewumongo emine, kuyadingeka ukuthi uqinisekise ukuthi iswishi iyawasekela yini amandla e-Class A noma cha.
Ngamafuphi, lapho ukhetha, ungacabangela izinzuzo nezindleko zezinketho ezihlukahlukene ze-PoE.
Isikhathi sokuthumela: Jun-05-2021