Cia peb saib RJ45. RJ45 yog ib hom kev sib txuas ntawm lub network, thiab cov ntawv luv "RJ" hauv nws lub npe yog Registered Jack, uas txhais tau tias "Registered Jack". Hom connector no ua lub luag haujlwm ntawm lub qhov (socket) cov ntaub ntawv (piv txwv li qhov hluav taws xob sib txuas lus) hauv kev sib txuas lus network. RJ45 connectors feem ntau muaj xws li plugs (connectors, siv lead ua hau) thiab sockets (modules), nrog 8 grooves thiab 8 contacts ntawm lub plug. Qhov kev tsim no tso cai rau nws los txhawb ntau lub network raws tu qauv thiab cov cuab yeej sib txuas. Daim ntawv thov dav thiab kev ntseeg siab ntawm RJ45 connectors ua cov ntaub ntawv sib kis ntawm cov khoom siv yooj yim thiab txhim khu kev qha, thiab yog cov khoom tseem ceeb rau kev tsim kom muaj kev ruaj ntseg thiab ceev network sib txuas.
Tom ntej no, cia peb tham txog CAT6. CAT6, tseem hu ua Qeb 6 cable, yog ib qho kev ua tau zoo sib tw twisted khub cable uas belongs rau hom network cable hauv computer network. Nws yog ib qho kev hloov kho tshiab ntawm CAT5e network cable, uas tuaj yeem pab txhawb kev sib kis tau zoo dua hauv kev sib txuas lus thiab txo cov teeb liab attenuation. CAT6 cables muaj plaub khub ntawm twisted khub tooj liab xov hlau thiab yog tsim los nrog unshielded twisted khub cables. Txawm hais tias lawv tsis tuaj yeem tiv thaiv kev cuam tshuam li qee lwm hom cable, lawv qhov kev ua tau zoo tseem txaus rau ntau daim ntawv thov. Lub CAT6 cable txhawb nqa ceev txog li 1 gigabit ib ob (Gbps) thiab qhov siab tshaj plaws ntawm 250 megahertz (MHz), ua rau nws tsim nyog rau kev ua tau raws li cov kev xav tau hauv network feem ntau. Tsis tas li ntawd, CAT6 cables feem ntau siv RJ-45 connectors, uas yog cov Ethernet connectors feem ntau.
Yog li, puas yog RJ45 tib yam li CAT6? Cov lus teb yog pom tseeb tsis zoo. Txawm hais tias lawv txhua tus ua lub luag haujlwm tseem ceeb hauv kev sib txuas lus hauv network, lawv cov ntsiab lus thiab cov haujlwm tseem ceeb sib txawv. RJ45 yog lub network txuas uas feem ntau txuas ntau yam khoom siv hauv lub network nrog cov cables hauv network kom ua tiav cov ntaub ntawv xa mus thiab kev sib txuas lus. CAT6, ntawm qhov tod tes, yog ib hom network cable uas feem ntau ua haujlwm xa cov ntaub ntawv ntawm cov khoom siv. Yog tsis muaj RJ45 txuas, CAT6 cables tsis tuaj yeem ua tiav kev sib txuas ruaj khov nrog lub cuab yeej; Yog tsis muaj CAT6 cables, RJ45 connectors tsis tuaj yeem ua tiav cov ntaub ntawv xa mus. Yog li ntawd, RJ45 thiab CAT6 yog kev sib koom ua ke thiab qhov tseem ceeb hauv kev tsim kev sib txuas lus network.
Tsis tas li ntawd, RJ45 thiab CAT6 kuj txawv ntawm kev ua tau zoo. Kev ua tau zoo ntawm RJ45 connectors feem ntau yog nyob ntawm yam xws li cov khoom siv hlau, kub plating thickness, thiab cov qauv tsim, uas tuaj yeem cuam tshuam rau kev sib kis ceev, kev ruaj ntseg, thiab kav ntev ntawm lub connector. Kev ua haujlwm ntawm CAT6 cables feem ntau yog nyob ntawm cov khoom siv xws li cov khoom siv hlau, cov khoom siv rwb thaiv tsev, thiab cov ntaub qhwv, uas tuaj yeem cuam tshuam rau kev sib kis ceev, txo qis, thiab tiv thaiv kev cuam tshuam ntawm cable.
Hauv cov ntsiab lus, txawm hais tias RJ45 thiab CAT6 ua lub luag haujlwm tseem ceeb hauv kev sib txuas lus hauv network, lawv tsis yog tib lub tswv yim. RJ45 yog lub network txuas siv los txuas cov khoom siv rau cov cables network; CAT6 yog ib hom network cable siv los xa cov ntaub ntawv ntawm cov khoom siv. Lawv txhua tus muaj cov qauv sib txawv thiab cov yam ntxwv ua tau zoo, tab sis lawv feem ntau yog siv ua ke hauv kev siv tswv yim los tsim kom muaj txiaj ntsig zoo thiab ruaj khov network kev sib txuas lus.
Rau network engineers thiab cov neeg siv, kev nkag siab qhov zoo sib xws thiab qhov sib txawv ntawm RJ45 thiab CAT6 yog qhov tseem ceeb. Tsuas yog los ntawm kev nkag siab tob txog lawv cov yam ntxwv thiab cov ntawv thov tuaj yeem xaiv cov cuab yeej tsim nyog thiab cov ntaub ntawv raws li qhov xav tau tiag tiag, ua kom muaj kev ruaj ntseg ntawm kev sib txuas hauv network thiab kev ua haujlwm ntawm cov ntaub ntawv xa mus.
