Ngophuhliso oluqhubekayo lwetekhnoloji ye-PoE, iiswitshi ze-PoE okwangoku zikwinqanaba eliqolileyo kakhulu, nangona kunjalo, ngenxa yemarike yangoku yokubeka iliso phantsi koxinzelelo lweendleko, umgangatho wokutshintsha kwe-PoE okanye iintambo ezikhethiweyo ziphantsi kakhulu, okanye uyilo lwesikimu ngokwalo. akukho ngqiqweni, nto leyo eya kukhokelela kumthwalo onzima ngokukodwa wokulungiswa kweeprojekthi zobonelelo lombane lwe-PoE. Iprojekthi yokubeka iliso yenethiwekhi yahlukile kwi-wiring eqhelekileyo yothungelwano oludibeneyo, umthamo wokuhanjiswa kwedatha uphezulu, amandla aphezulu, kwaye ifuna umsebenzi ongaphazamisekiyo ubusuku nemini, ngoko umbono wokuba umbane we-PoE awuzinzile. Kodwa ngaba unikezelo lwamandla lwe-POE aluzinzanga ngokwenene? Makhe sazise ukuba iiswitshi ze-PoE zinokudityaniswa njani ngokuzinzileyo kwaye zeziphi iingenelo zokhuseleko lokutshintsha kwe-PoE? Makhe sijonge!

Ukuqinisekisa njani uqhagamshelo oluzinzileyo lokutshintsha kwePoE?

① Sebenzisa iiswitshi ezisemgangathweni zePoE. Iiswitshi ze-PoE ezingekho semgangathweni azinayo i-IEEE802.3af okanye i-IEEE802.3at protocol. Kungakhathaliseki ukuba isixhobo se-terminal siyayixhasa unikezelo lwamandla e-PoE, ukunyanzelisa unikezelo lwamandla ombane we-48V kuya kusonakalisa isixhobo se-terminal. Ngoko ke, ukusetyenziswa kokutshintsha kwe-PoE okusemgangathweni yinyathelo lokuqala lokuqinisekisa ukusebenza okuzinzileyo kwenkqubo yenethiwekhi.

②Sebenzisa intambo yesiziba esemgangathweni.Kuphephe ukuthenga iintambo ezingezizo ezikumgangatho ofanelekileyo. Ngenxa yokuba aziveliswanga ngokungqongqo ngokuhambelana neemfuno zeentambo zenethiwekhi eziqhelekileyo, i-copper-clad steel / aluminium / iron ingenzeka. Ngoko ke, ukuchasana kwentambo yenethiwekhi kuya kuba enkulu kwaye ayifanelekanga ukunikezelwa kwamandla e-PoE.

③Misela ukusetyenziswa kwamandla kwesixhobo setheminali. Imigangatho yokutshintsha kwe-PoE ehlukeneyo inamandla ahlukeneyo okuphuma, njengale: IEEE802.3af umgangatho we-POE wokutshintsha unokubonelela ngombane kwizixhobo ezinobuninzi bokusetyenziswa kwamandla angekho ngaphezu kwe-15.4W; Iswitshi ye-PoE ehambelana nomgangatho we-IEEE802.3at inokubonelela ngombane kwizixhobo ezona setyenziso luphezulu lwamandla lungagqithiyo kwi-30W. Ngokomgama wothumelo kunye nokulahleka kwezinto, usetyenziso lwamandla oluphezulu olunokuthi lunikezelwe lunokuba luphantsi.

④Cacisa inani lezixhobo zetheminali. Ngaphantsi komgangatho we-IEEE802.3af, ukuba umbane opheleleyo we-PoE we-24-port ye-PoE switch ifikelela kwi-370W, inokubonelela ngee-ports ze-24 (370 / 15.4 = 24),; Kodwa ukuba ibalwa ngokwe-IEEE802.3at kumgangatho we-single-port ubuninzi bonikezelo lwamandla lwe-30W, kwangaxeshanye, inokubonelela kuphela amandla kumazibuko ali-12 kakhulu (370/30=12).

⑤ Misela umgama wothumelo. Umgama wonikezelo lwamandla wokutshintsha kwe-PoE uchongwa ngumgama wokuhanjiswa komqondiso wedatha. Xa izinga lokuhambisa liyi-100Mbps, umgama ophezulu apho isignali yedatha inokudluliselwa yi-100m. Ngoko ke, ukugweba umgama wothumelo olusekelwe kwizinga lokuhambisa ngenye yezinto eziqinisekisa uxhulumaniso oluzinzileyo lwe-PoE switch.

⑥Ine-IETF RFC2544 esemgangathweni. Lo mgangatho unokubonelela ngenkonzo yokuphazamiseka kwebenchmark yokuvavanya indlela yokuvavanya i-throughput yesixhobo soqhagamshelwano lwenethiwekhi, inani lezakhelo zokubuyela emva, izinga lokulahleka kwepakethi kunye nokulibaziseka kokusebenza, kunye nokubeka iliso uxhulumaniso oluzinzileyo lokutshintsha kwe-PoE.