Amandla phezu kwe-Ethernet (POE)Itekhnoloji iguqule indlela esisebenza ngayo izixhobo zethu, ibonelela ngokulula, ukusebenza kakuhle kunye nokonga iindleko.Ngokudibanisa amandla kunye nokuhanjiswa kwedatha kwikhebula le-Ethernet, i-POE iphelisa imfuno yentambo yamandla eyahlukileyo, eyenza ibe yinto efanelekileyo kwiinkqubo ezahlukeneyo ezifana neekhamera ze-IP, iindawo zokufikelela ezingenazintambo, kunye neefowuni zeVoIP.Nangona kunjalo, ngaphambi kokuba wenze utyalo-mali kuso nasiphi na isisombululo sothungelwano, kubalulekile ukuqonda umahluko phakathi kokutshintsha kwe-POE okusemgangathweni kunye nokungekho semgangathweni.

Iiswitshi ezisemgangathweni ze-POE zilandela iZiko leeNjineli zoMbane kunye ne-Electronics (IEEE) 802.3af okanye imigangatho ye-802.3at.Le migangatho eqatshelweyo yoshishino ichaza amandla aphezulu ombane onokuthi utshintshe ukuhanjiswa kwizixhobo ezihambelana ne-POE.Awona mandla axhaphakileyo ekutshintsheni kwe-POE eqhelekileyo yi-48V.

Kwelinye icala, iiswitshi ze-POE ezingekho mgangathweni zinokungahambelani nale migangatho ye-IEEE.Bahlala besebenzisa iindlela zobunikazi ezitenxayo kwizithethe ezimiselweyo.Ngelixa olu tshintsho lunokubonakala lunokhetho olusebenzayo ngenxa yeendleko zabo ezinokuba sezantsi, abanakho ukusebenzisana kunye nokuthembeka kokutshintsha okusemgangathweni kwe-POE.Kubalulekile ukuqonda umahluko phakathi kwezi zimbini kunye nobungozi obunokubakho obunxulunyaniswa ne-non-standardIiswitshi zePOE.

Umehluko omnye obalulekileyo phakathi kokutshintsha kwe-POE okuqhelekileyo kunye nokungekho semgangathweni ngumbane abawunikezelayo kwizixhobo ezixhunyiwe.UmgangathoIiswitshi zePOEsebenzisa amandla e-48V.Ezi zikhetho zamkelwe ngokubanzi kwaye zixhaswa zizixhobo ezininzi ezenziwe nge-POE kwimarike.Banikezela amandla athembekileyo, azinzileyo, aqinisekisa ukusebenza okungenamthungo kunye nokusebenza kakuhle.

Ngokwahlukileyo, iiswitshi ze-POE ezingekho mgangathweni zisebenzisa iinketho zombane ngaphandle kwe-48V.Ngelixa ezinye zezi zitshintshi zibonelela ngezakhono eziphezulu zokuhambisa amandla, azihambelani nezixhobo eziphambili ze-POE.Oku kungahambelani kunokubangela imiba eyahlukeneyo, kubandakanya ukunqongophala kwamandla, ukunciphisa ukusebenza kwesixhobo, kunye nomonakalo onokwenzeka kwizixhobo eziqhagamshelweyo.

Ukwahlula phakathi kokutshintsha kwe-POE okusemgangathweni kunye nokungaqhelekanga, qalisa ngokujonga iinkcukacha zonikezelo lwamandla ezibonelelwa ngumenzi wokutshintsha.Ukutshintsha okuhambelanayo kuya kubonisa ngokucacileyo ukuba ngaba bayahambelana ne-IEEE 802.3af okanye i-802.3at standard, kunye neendlela zombane abazixhasayo.Olu tshintsho luza kuchaza ubuninzi bemveliso yamandla kwizibuko ngalinye, ukuqinisekisa ukuba unako ukuxhobisa ngokukhuselekileyo izixhobo zePOE.

Kwelinye icala, iiswitshi ze-POE ezingekho mgangathweni zinokungahambelani nale migangatho ichazwe kakuhle.Basenokunikezela ngemveliso yamandla ephezulu okanye basebenzise iinketho zombane ezingekho mgangathweni, ezifana ne-12V okanye i-56V.Lumka xa uqwalasela olu hlobo lokutshintsha njengoko basenokunganikeli ngamaqondo ombane afunwa sisixhobo sakho okanye banokubangela ukuba isixhobo singasebenzi kwangaphambi kwexesha.

Enye indlela yokwahlula phakathi kokutshintsha kwe-POE okuqhelekileyo kunye nokungaqhelekanga kukuxhomekeka kubenzi bezixhobo zenethiwekhi ezihloniphekileyo.Abavelisi abasekiweyo bavelisa iiswitshi zePOE ezithembekileyo nezisemgangathweni ezihambelana neenkcukacha zoshishino.Bavavanywa ngokuqatha ukuhlangabezana nemigangatho yomgangatho kunye nokuhambisa ukusebenza okuphezulu.

Xa ufuna iiswitshi ze-POE, ungaqhagamshelana nathi nangaliphi na ixesha.Inkampani yethu,I-JHA Tech, igxininise kwi-R & D, imveliso kunye nokuthengiswa kweenguqu ezahlukeneyo ukususela ngo-2007. Ayinayo inzuzo enkulu kakhulu kwixabiso, kodwa iqinisekisiwe kakhulu kumgangatho ngenxa yokuba sifumene izatifikethi zobungcali kunye nezigunyaziso;