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 ngathi lunokhetho olusebenzayo ngenxa yeendleko zabo ezinokuba sezantsi, abanakho ukusebenzisana kunye nokuthembeka kokutshintsha kwePOE okusemgangathweni. Kubalulekile ukuqonda umahluko phakathi kwezi zimbini kunye nobungozi obunokubakho obunxulumene 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 banokungaboneleli ngamaqondo ombane afunwa sisixhobo sakho okanye kunokubangela ukuba isixhobo singasebenzi kwangaphambi kwexesha.

Enye indlela yokwahlula phakathi kokutshintsha kwe-POE okusemgangathweni kunye nokungasetyenziswanga kukuthembela kubavelisi bezixhobo zenethiwekhi abathembekileyo. 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, sele 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;