Nyob rau hauv lub ntiaj teb digital niaj hnub no, qhov xav tau kev sib txuas hauv internet ceev ceev thiab txhim khu kev qha yog ntau dua li yav dhau los. Qhov no yog qhov tseeb tshwj xeeb rau cov lag luam thiab cov koom haum, qhov twg kev sib txuas network ruaj khov yog qhov tseem ceeb rau kev ua haujlwm txhua hnub. Qhov no yog qhov uas Power over Ethernet (PoE) switches los ua si.
Dab tsi yog ib qhoPoE hloovkoj nug? Lawv yog cov network switches uas muab fais fab thiab xa cov ntaub ntawv hla Ethernet cables rau cov khoom siv xws li IP koob yees duab, VoIP xov tooj, thiab wireless access points. Qhov no tshem tawm qhov xav tau ntawm ib txoj hlua fais fab sib cais, ua rau kev teeb tsa thiab kev saib xyuas yooj yim dua.
Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm PoE switches yog lub peev xwm los muab hluav taws xob rau cov khoom siv hla kev deb (txog li 100 meters). Qhov no yog qhov tshwj xeeb tshaj yog rau kev teeb tsa sab nraum zoov lossis thaj chaw uas cov qhov hluav taws xob yuav tsis tshua muaj. Tsis tas li ntawd,Cov hloov PoEtuaj yeem muab qhov tseem ceeb thiab tswj kev faib hluav taws xob kom ntseeg tau tias cov khoom siv tseem ceeb tau txais hluav taws xob ua ntej.
Thaum xaiv lub PoE switch, muaj ntau yam tseem ceeb uas yuav tsum xav txog. Ua ntej, lub peev nyiaj fais fab ntawm lub switch yog qhov tseem ceeb vim nws qhia tau tias lub switch tuaj yeem muab hluav taws xob ntau npaum li cas rau cov khoom siv txuas nrog. Tsis tas li ntawd xav txog tus lej ntawm PoE ports xav tau, nrog rau qhov ceev ntawm kev xa cov ntaub ntawv ntawm lub switch thiab kev ua haujlwm ntawm lub network tag nrho.
Lwm qhov tseem ceeb uas yuav tsum xav txog yog qhov sib xws ntawm PoE switch nrog cov khoom siv uas nws muab hwj chim. Nws yog ib qho tseem ceeb kom ntseeg tau tias lub switch tuaj yeem muab cov kev xav tau fais fab rau txhua lub cuab yeej txuas nrog thiab txhawb nqa cov txheej txheem network uas xav tau.
Hais txog kev teeb tsa, PoE switches yooj yim teeb tsa heev. Lawv tuaj yeem yooj yim koom ua ke rau hauv cov tes hauj lwm uas twb muaj lawm thiab muaj ntau qhov ntau thiab tsawg thiab kev teeb tsa kom tau raws li qhov xav tau sib txawv. Feem ntau PoE switches kuj tseem muaj software tswj hwm uas ua rau nws yooj yim los saib xyuas thiab tswj cov khoom siv txuas nrog.
Ntxiv rau lawv qhov kev siv tau yooj yim, PoE switches kuj tseem tuaj yeem txuag cov nqi thiab ua kom lub zog siv tau zoo dua. Los ntawm kev siv ib txoj hlua hluav taws xob rau kev xa hluav taws xob thiab cov ntaub ntawv, cov lag luam tuaj yeem txo qhov ntau ntawm cov xov hlau uas xav tau, yog li txo cov nqi teeb tsa thiab kev saib xyuas. Tsis tas li ntawd, lub peev xwm los rov pib dua cov khoom siv los ntawm PoE switch txuag lub sijhawm thiab cov peev txheej.
Zuag qhia tag nrho, PoE switch yog ib qho kev daws teeb meem uas siv tau ntau yam thiab ua tau zoo rau kev muab hluav taws xob thiab tswj cov khoom siv sib txuas hauv network. Lawv lub peev xwm los muab hluav taws xob thiab xa cov ntaub ntawv hla ib txoj hlua Ethernet ua rau lawv zoo tagnrho rau ntau yam kev siv los ntawm cov lag luam me mus rau cov lag luam loj.
Xaus lus,Cov hloov PoEyog cov cuab yeej muaj txiaj ntsig zoo rau kev ua kom tau raws li qhov xav tau ntawm cov tes hauj lwm niaj hnub no. Lawv lub peev xwm los ua kom yooj yim rau kev teeb tsa, txo cov nqi thiab muab lub zog zoo thiab kev xa cov ntaub ntawv ua rau lawv yog qhov tseem ceeb rau txhua lub koom haum uas tab tom nrhiav kev ua kom yooj yim rau lawv cov khoom siv hauv network. Txawm hais tias muab lub zog rau lub koob yees duab IP, xov tooj VoIP, lossis cov chaw nkag mus rau wireless, PoE switches yog qhov kev daws teeb meem rau kev sib txuas lus txhim khu kev qha, tsis muaj kev txhawj xeeb.
Lub sijhawm tshaj tawm: Lub Ib Hlis-18-2024