Ua ntej nkag siab txog PoE keyboards, peb yuav tsum xub nkag siab tias PoE yog dab tsi.
PoE yog lub zog hluav taws xob tshaj Ethernet thev naus laus zis.Nws yog ib txoj hauv kev los muab lub zog rau cov khoom siv sib txuas (xws li Wireless LAN AP, IP Xov Tooj, Bluetooth AP, IP Lub Koob Yees Duab, thiab lwm yam) ntawm tus qauv Ethernet cov ntaub ntawv cable, tshem tawm qhov teeb meem ntawm kev txhim kho cov khoom siv hluav taws xob sib cais ntawm ib qho IP network davhlau ya nyob twg cov cuab yeej ua rau nws tsis tsim nyog rau kev xa tawm cov khoom siv hluav taws xob sib cais rau cov cuab yeej ntawm qhov chaw siv, uas tuaj yeem txo tau cov kab hluav taws xob thiab kev tswj cov nqi ntawm kev xa tawm cov khoom siv davhlau ya nyob twg thiab txhawb kev txhim kho ntawm cov chaw muaj feem xyuam.
CovPoE hloovyog raws li kev hloov pauv ntawm Ethernet ib txwm muaj, nrog rau qhov sib ntxiv ntawm PoE muaj nuj nqi sab hauv, yog li qhov hloov pauv tsis tsuas yog muaj cov haujlwm ntawm cov ntaub ntawv sib pauv, tab sis kuj tuaj yeem xa hluav taws xob los ntawm lub network cable tib lub sijhawm.Qhov no yog lub network fais fab mov hloov.Nws tuaj yeem txawv ntawm cov keyboards zoo tib yam hauv qhov tsos.PoE hloovmuaj lo lus "PoE" nyob rau pem hauv ntej ntawm lub vaj huam sib luag, qhia tau hais tias lawv muaj PoE functions, thaum zoo tib yam keyboards tsis.
1. Muaj kev nyab xeeb dua
Peb txhua tus paub tias 220V voltage yog qhov txaus ntshai heev.Cov kab hluav taws xob hluav taws xob feem ntau puas lawm.Qhov no yog qhov txaus ntshai heev, tshwj xeeb tshaj yog thaum nag xob nag cua.Thaum cov khoom siv hluav taws xob tau txais kev puas tsuaj, qhov tshwm sim ntawm kev xau yog qhov tsis muaj tseeb.Kev siv ntawmPoE hloovmuaj kev nyab xeeb dua.Ua ntej tshaj plaws, tsis tas yuav rub lub hwj chim, thiab nws muab kev nyab xeeb voltage ntawm 48V.
2. Yooj yim dua
Ua ntej qhov kev nthuav dav ntawm PoE thev naus laus zis, 220V lub qhov hluav taws xob tau siv rau kev siv hluav taws xob.Txoj kev tsim kho no yog nruj heev, vim tias tsis yog txhua qhov chaw tuaj yeem siv los yog ntsia tau, yog li qhov zoo tshaj plaws lub koob yees duab txoj hauj lwm feem ntau cuam tshuam los ntawm ntau yam, qhov chaw yuav tsum tau hloov, uas ua rau muaj ntau qhov chaw dig muag rau kev saib xyuas.Tom qab PoE thev naus laus zis loj tuaj, cov no tuaj yeem daws tau.Tom qab tag nrho, lub network cable kuj tuaj yeem siv los ntawm PoE.
3. Yooj yim dua
Txoj kev sib txuas ib txwm muaj yuav cuam tshuam rau kev sib txuas ntawm kev saib xyuas, uas ua rau tsis muaj peev xwm txhim kho kev saib xyuas hauv qee qhov chaw uas tsis haum rau kev xaim.Txawm li cas los xij, yog tias qhov hloov pauv PoE siv rau lub zog siv hluav taws xob, nws tsis txwv los ntawm lub sijhawm, qhov chaw thiab ib puag ncig, thiab txoj kev sib txuas kuj tseem yuav ua tau yooj yim heev, lub koob yees duab tuaj yeem ntsia tau arbitrarily.
4. Ntau zog txuag
Txoj kev siv hluav taws xob 220V ib txwm siv yuav tsum muaj ntau yam kev xaim.Nyob rau hauv cov txheej txheem kis tau tus mob, qhov poob yog heev loj.Qhov ntev ntawm qhov kev ncua deb, qhov poob ntau dua.Qhov tseeb PoE thev naus laus zis siv cov pa roj carbon tsawg thiab ib puag ncig tus phooj ywg thev naus laus zis nrog kev poob qis heev.Los ntawm qhov kev xav ntawm nws, kev txuag hluav taws xob thiab kev tiv thaiv ib puag ncig tuaj yeem ua tiav.
5. Zoo nkauj dua
Vim tias POE thev naus laus zis ua rau lub network thiab hluav taws xob rau hauv ib qho, tsis tas yuav xaim thiab nruab cov qhov (socket) nyob txhua qhov chaw, uas ua rau qhov chaw saib xyuas zoo dua thiab dav.Lub POE fais fab mov yog siv los ntawm lub network cable, uas yog, lub network cable uas xa cov ntaub ntawv tuaj yeem xa hluav taws xob, qhov no tsis tsuas yog ua kom yooj yim rau kev tsim kho, txo cov nqi installation, thiab muaj kev nyab xeeb dua.Ntawm lawv, POE hloov pauv tau nyiam los ntawm cov kws ua haujlwm ruaj ntseg rau lawv cov kev ua haujlwm siab, kev siv yooj yim thiab yooj yim, kev tswj xyuas yooj yim, kev sib txuas yooj yim, thiab tus nqi tsim kho tsawg.