Izithwici zikaPoE ezinobukhulu: Isisindo sokuphatha amandla futhi uthwale imininingwane

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Isithwici esine-PoE (Power over Ethernet) sibonisa ukuphumelela kwesilikonke esinamathiko, kuhlanganisa izindawo zokusebenza nezindawo zokunikeza amandla. Le siliko esifakiwe ngokuhle kudatha ukuthumela data futhi nikel amandla okusebenza kumadivayisi akhiphayo ngokusetena kwekabeli ye-Ethernet. Lapho sebenza kwi-data link layer, le sihwitchi sinezindawo ezingu-8 kuze kube ngu-48, nezinganye engena iyonke ukunikeza ukuxhumeka kwenethiwekhi ne-amanqaku abalulekileyo kumadivayisi amane amane kangcono IP cameras, iphoni le-VoIP, nezindawo zokuxhumeka kwe-wireless. Lo tekinoloji ye-PoE lisenza singasingathi sokubaleka kwekabeli yamandla, kakhulu kuyakhe kabusho lokufaka futhi uyahlise izindleko zokuvikela silikonke. Izihwitchi ezi-PoE eziphephile zilandela izimo eziningi ezingu-IEEE 802.3af, 802.3at (PoE+), ne-802.3bt (PoE++), zinikeza amandla aphezulu kuma-15.4W kuze kube ngu-90W ngasinye isindawo. Le siliko senekelwa kakhulu kusimame amandla owaweyo ongene kumadivayisi ayakhiwa ukuze uvikele amandla apholile kanye nokunikeza amandla ngendlela efanele kuzo zonke izindawo. Ngokwendala, zinezinhloso zokuplanisha amandla ngendlela iqondile, ekuvumela abasebenzisi ukulawula ukunikeza amandla basebenzisa izikhathi eziyisicathami noma imigomo ethile, ngaleso wayo kuyakha kakhulu ukusebenzela kwezimali futhi uyahlise izindleko zokusebenza.

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Ukusebenzisa imishini enenxa we-PoE ikulela izintu eziyisithunziwe kakhulu ekuthathweni kwamanqakubo nasekuphileni kwebandla. Okokuqala, le miphumela isusa ngokuphelelwa ukugcina nokuthulaselwa kwezimali ngokungasiza ukuthi kudingekwe amanye amaphoyinti wamandla nawe amagwire elekthirikhi. Le solushoni yomkhombandlela engxenye into esenza ukusetha okungenjalo futhu ikulela ukuvikela okuningi ekubekeni amadivayisi, njengoba amadivayisi wamanqaku angasetshwa lapho kube khona i-Ethernet cable, akukho lutho lokhu kudingeka ukuthi kune-socket yamandla. Imigomo yokuphatha amandla ekutendelweni iyavumela abasebenzisi manqaku ukulondoloza nokuphatha amandla owaweyo kuma-divayisi, ukwenzela ukusekela nokuphila okungenjalo ngaphandle kokuhamba phesha. Izinkinobho zokuphatha amandla zikulela ukuncipiswa kwezindleko zokusebenza ngokuzilungiselela ukususa amandla kuma-divayisi lapho awudingekiwe. I-Surge protection nezinhlelo zokuphatha amandla ezifundekileyo ziyajabula ukuthi amadivayisi atholwe amandla aphakathi, ukungavimbeli ukwehliswa kwezinto ngokwezinga lezindleko. Le mishini nayo ikhansela ukuthuthukiswa kwebandla, njengoba amadivayisi amaningi a-PoE angeniswa ngokulula kwi-infrastructure yakhiwe ngaphambili ngeke kudingekwe ukuguqula izinhlelo zokusebenza. Ubucophele bakho be-PoE buvumela ukuthi kuthunyelwe kakhulu nezinye izinhlelo zebandla, futhu le ndawo ya-PoE edlule ikhansela ukuxhumana nezinto eziphume amandla amaningi, ukwenzela ukuthi kuthunyelwe nezinto eziphume amandla amaningi njengekamera yepan-tilt-zoom nezinhlelo zokuxhumana ne-WiFi. Ngokokudla, ukuthunyelwa komkhombandlela nezincomo kuphela kumkhombandlela engxenye into esenza ubandla obulandelene futhu ikulela ukunciphisa izindawo ezinezinkinga.

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Ukuphatha Noma Kumkeli We-Energy

Inkampani yokuphatha i-energy engakumbi enqatshelwe kwi-switches ze-PoE iyinkanyezi ephambili kwinkqubo yokugoverna inkqubo yejenelo. Le nkqubo inikeza ukulondoloza nokulandela ukuhlukelelwa kwe-energy kumntu ngamnye oqhagamshelwe, uyilo lokusebenza okuphezulu ngenxa yokuvikela amanqakwana. Abakhankatha bakhonza ukuseta i-priority yezinhloko ezahlukene, uyilo lokuba izinto eziphambili ziphile i-energy lapho kunezikhathi zokudinga ngaphezulu. Inqanawa inemigomo yokudeteka i-energy ngokuzenzekelayo eyaziwa ukuthi yini i-energy ehlukile esidinga yomntu oqhagamshelwe fakwe ukuhlukelela ngendlela ehambisana, uvikela ukwehluka kwe-voltage ngaphandle kokuhamba ngokushesha. Le nto ethintelwe yokuphatha i-energy kunayo indawo yokuvikela amathiphu apholile okuthi kungenzeka ukuthi kubuyiselwe i-energy uma ipoti ithinte noma kudinga ukulungiswa.

Ukubaluleka kwenethiwekhi nokusekela

Izishitshi zokungenisa amandla (PoE) zifaka phakathi imilawuli engqo yokuqukatha ukubaluleka kwenethiwekhi nokusekela. Isisitemu sokunikeza amandla ifaka phakathi izinkomba zokulungisa izinto ezixhunywa kumaqondo amathathu, okuphazamiseka ngokukhulu ukwehliswa kwezinto. Lezi zishitshi nazo zinezinhlelo yokugcina amandla edlula ukwazi ukuthola nokuphendula izinkinga eziphakathi kwezimali ngaphambi kokuba zithinte isebenza senethiwekhi. Ukuphatha amandla ngendawo enkulu kuvumela ukuthi kudluliselwe amandla kuzo izinto ezingenayo ngokushesha, ukunciphisa isikhathi esizodwa nokunceda ukuxazulula izinkinga. Ngaphezulu, lezi zishitshi zinezinhlelo zokusekela engenza ukuthola izinto ezingavumelekile eziphetjiswa ukuxhuma kwenethiwekhi ukuthola amandla.

Ukufakwa nokuhlelwa ngemali encinane

Imiphumano yokusebenzisa izithwici zikaPoE ziyaphezulu kakhulu ngemva kokunyakelwa ngokuqala. Ngokukhuphela ukudinga kweyinfra yesiko, izinhlelo zingathula ngokubaluleka imali yokuthola fomu nezindleko zokusebenzela. Iyinfra yezilayisha esimplithewe ayithuli kuphela isikhathi nezindleko yokunyakelwa kodwa futhi iyahlula ubudala bokulungiswa futhi kungcinwe amaphuzu okungagqigi. Imikhwelo yokuphatha amandla ekuseni kuvumela ukulungisa amaphutli futhi ukulayisha kabusha amandla, lokhu kuyahlula ukudinga kwezilayisho zokusebenzela ekuhlaleni. Iziphazamiso zokusebenzisa amandla ngokuholela, kanye nezokuphatha amandla ngokuhle, ziyakunyeza imiphumano yokusebenzela ngokuthula ngokuthula kwezikhwama zokulayisha.