Xov xwm
RJ-45 PoE: Fais fab koj qhov kev sib txuas Ethernet
2024-04-21 17:47:29 dr hab
RJ-45 Ethernet chaw nres nkoj yog lub cev sib cuam tshuam uas ua rau muaj kev sib txuas ntawm cov khoom siv sib txuas uas siv cov kab sib tw twisted. Nws yog tsim los kom haum rau yim xov hlau, uas yog siv rau kev xa thiab tau txais cov ntaub ntawv. Qhov chaw nres nkoj feem ntau pom nyob rau sab nraum qab ntawm cov khoom siv sib txuas thiab siv los tsim kom muaj kev sib txuas nrog rau ib cheeb tsam hauv cheeb tsam (LAN) lossis hauv internet.
Fais fab dhau Ethernet (PoE) yog ib lub tshuab uas tso cai rau tib lub sijhawm xa cov ntaub ntawv thiab hluav taws xob hluav taws xob hla tib lub Ethernet cable. Qhov no yog ua tau los ntawm kev siv cov xov hlau tsis siv nyob rau hauv Ethernet cable los nqa hluav taws xob hluav taws xob, tshem tawm qhov xav tau ntawm lub zog hluav taws xob sib cais. Cov khoom siv uas txhawb nqa PoE tuaj yeem siv ncaj qha los ntawm Ethernet chaw nres nkoj, ua kom yooj yim txhim kho thiab txo qhov xav tau rau cov hluav taws xob ntxiv.
Thaum nws los txog rau RJ-45 PoE, qhov chaw nres nkoj Ethernet tsis yog siv rau kev xa cov ntaub ntawv nkaus xwb tab sis kuj tseem xa lub zog rau cov khoom siv sib xws. Qhov no yog qhov tshwj xeeb tshaj yog muaj txiaj ntsig zoo rau cov khoom siv xws li IP koob yees duab, cov ntsiab lus nkag wireless, thiab VoIP xov tooj, uas tuaj yeem siv tau yooj yim siv ib qho Ethernet cable. RJ-45 PoE yog tus qauv raws li IEEE 802.3af thiab IEEE 802.3at, uas txhais cov kev qhia tshwj xeeb rau kev xa hluav taws xob hla Ethernet.
Thaum ua ke nrog PoE thev naus laus zis, nws dhau los ua ntau yam interface uas tuaj yeem xa lub zog rau cov khoom siv sib xws, ua kom yooj yim rau kev teeb tsa thiab txo cov kab sib txuas. Txawm hais tias koj tab tom teeb tsa lub network hauv tsev lossis kev lag luam kev lag luam, RJ-45 PoE muaj cov kev daws teeb meem yooj yim thiab muaj txiaj ntsig rau kev siv hluav taws xob rau koj cov khoom siv Ethernet.