Shintshanisa amasheya PoEisho iswishi enganikeza amandla enethiwekhi kumatheminali asebenza kude ngentambo yenethiwekhi. Kuyidivayisi evamile yokuphakelwa kwamandla kumasistimu okunikezwa kwamandla e-PoE. Kodwa-ke, uma iswishi ingenawo umsebenzi we-POE, ingabe imojula eyengeziwe yokuphakela amandla e-poe ingezwa ukuze inike amandla i-AP ngokushintsha? Eqinisweni, kungenzeka. Kungabhekwa kuphela njengokusebenzisa amafidi angama-4578 ekhebula lenethiwekhi endaweni yenethiwekhi engu-100M ukudlulisa amandla. Lokho kuwukuxhuma isihlanganisi se-POE (esaziwa nangokuthi ugesi we-POE) phakathi kweswishi ne-AP, kodwa isisekelo sincike ekutheni i-AP yakho iyakusekela yini ukuthola amandla e-POE.

Imodi yokunikeza amandla yokushintsha i-PoE eyodwa

Ngakho-ke uma une-AP engenantambo efakwe kusilingi, iningi labo liyayisekela. Esinye isiphetho ikhebula lenethiwekhi elisuka kumbobo yenethiwekhi, kanti enye ingxenye intambo yenethiwekhi kanye nepulaki ye-DC, exhunywe embobeni yenethiwekhi ye-AP kanye nembobo yamandla. Yilokho kuphela. Kodwa-ke, kulokhu, kunezindlela ezimbili zokusebenzisa i-POE ukuze unikeze amandla ku-AP, kodwa isihlukanisi se-POE esingeziwe esingu-48V kuya ku-12V sengezwa ku-AP.

Lolu hlobo lwesihlukanisi se-POE empeleni luyi-DC48V ukuya ku-12V transformer. Esinye isiphetho ikhebula lenethiwekhi elisuka kumbobo yenethiwekhi ukuze lixhume i-POE, kanti enye ingxenye iyikhanda lekhebula lenethiwekhi kanye nepulaki yamandla ye-DC, axhunywe embobeni yenethiwekhi ye-AP kanye nembobo yamandla.

Imodi yokunikeza amandla ye-PoE yesibili

Esinye isiphetho ipulaki yekhebula yenethiwekhi, eshuthekwa kupulaki yodonga lwenethiwekhi eholela ku-AP. Iyafana naleyo esendleleni yokuqala. Uma imanuwali ingabhali ukusekela i-POE, ngokuvamile ayisekelwe, ngoba ukwengeza le ngxenye yesekethe kudinga amashumi ama-yuan. Izindleko. Xhuma ikhebula lenethiwekhi kusuka kusishintshi kanye ne-adaptha yamandla engu-12V ku-AP yakho, kodwa ayikho ingxenye yesiguquli; uxhumano lweDATHA lungaxhunywa ku-AP. Uma isekelwa, imojula yokunikezela amandla engu-48V POE ingaxhunywa phakathi kweswishi ne-AP. Kunezimbobo ezimbili zenethiwekhi kumojula yokuphakela amandla ye-POE, futhi iswishi exhunywe ku-DATA ibhaliwe. Imbobo ye-DATA ixhunywe kukhebuli yenethiwekhi ukusuka ekushintsheni, futhi imbobo ye-DATA&MANDLA ixhunywe kukhebula yenethiwekhi eholela ku-AP. Khona-ke ikhebula lenethiwekhi ekupheleni kwe-AP lixhunywe ku-POE splitter noma i-splitter, ebuye isekelwe, kodwa ukunikezwa kwamandla kuzinzile futhi ubude bekhebula lenethiwekhi buvunyelwe ukufinyelela amamitha angu-100 noma ngaphezulu. Le ndlela inezindleko eziphansi kakhulu, kodwa uma ikhwalithi yekhebula lenethiwekhi impofu kakhulu noma iyinde kakhulu, izobangela ukunikezwa kwamandla okwanele kwe-AP.

Amathiphu wokushintshwa kwe-POE

Indlela yokuqala iyabiza futhi idinga i-AP ukuthi isekele ukunikezwa kwamandla ka-Poe. Uma ungayisekeli, awukwazi ukusebenzisa le ndlela yokuxhuma. Uma kungenjalo, kulungile uma ifakwe ukutholwa okuzenzakalelayo kwedivayisi eyamukela amandla. Uma imojula ye-POE iphoqeleka ukuthi inikeze amandla, izoshisa i-AP. Ngokuvamile, isihlanganisi esilula emakethe yileso esinomkhawulo owodwa. Imbobo yenethiwekhi eyodwa nesixhumi esisodwa sowesifazane we-DC. Ukuthi isekela imanuwali izobhalwa (noma buza umthengisi), isibonelo, kubhaliwe ukuthi isekela i-IEEE 802.

Imbobo yesifazane ye-DC kusihlanganisi ixhunywe ku-adaptha yamandla ye-AP, futhi ifanele indawo yenethiwekhi engu-100M kuphela. Uma ixhunywe kunethiwekhi ye-Gigabit, izoshisa idivayisi. Le ndlela ayiyona ingxenye ye-POE ejwayelekile. Uma ungayixhumi odongeni, kufanele uthenge lolo hlobo lwesihlanganisi se-modular. Abanye abakhiqizi bazoba nobuvila futhi babhale nje ukuthi basekela ukunikezwa kwamandla ka-POE. 3af noma i-IEEE 802.3at, okusho ukuthi bayayisekela.