Coaxial cable yog ib lub cable uas muaj ob lub concentric conductors thiab tus neeg xyuas pib thiab cov ntaub thaiv npog sib koom tib axis.
Hom ntau homcoaxial kabmuaj ib tug tooj liab conductor cais los ntawm ib tug insulating khoom.Nyob rau sab nraud ntawm txheej txheej ntawm rwb thaiv tsev yog lwm tus neeg xyuas pib thiab nws cov insulator, thiab tom qab ntawd tag nrho cov cable yog them los ntawm cov ntaub ntawv PVC lossis Teflon.
Baseband yog tam sim no feem ntau siv cable nrog cov ntaub thaiv npog ua los ntawm tooj liab hauv daim ntawv mesh nrog cov yam ntxwv impedance ntawm 50 (xws li RG-8, RG-58, thiab lwm yam).
Wideband coaxial cables feem ntau yog siv nrog cov ntaub thaiv npog uas feem ntau yog stamped nrog txhuas thiab muaj cov yam ntxwv impedance ntawm 75 (xws li RG-59, thiab lwm yam).
Coaxial cablestuaj yeem muab faib ua: coarse coaxial cables thiab nplua coaxial cables raws li lawv txoj kab uas hla.
Coarse cable yog tsim rau cov kev sib txuas hauv zos loj, nws muaj qhov ntev ntawm tus qauv thiab kev ntseeg siab, thiab tuaj yeem hloov kho raws li qhov xav tau ntawm lub khoos phis tawj nkag mus rau qhov chaw vim tias lub installation tsis tas yuav txiav lub cable, tab sis cov coarse cable network yuav tsum tau nruab. transceiver cable, installation yog nyuaj, yog li tag nrho cov nqi yog siab.
Ntawm qhov tsis sib xws, kev teeb tsa ntawm nyias cable yog yooj yim dua thiab tsis tshua kim, tab sis vim tias cov txheej txheem kev teeb tsa yuav tsum txiav cov cable, ob qho kawg yuav tsum tau nruab nrog cov kab txuas txuas yooj yim (BNC), thiab tom qab ntawd txuas rau ob kawg ntawm T-connector, yog li thaum muaj ntau cov connectors, nws yog ib qho yooj yim los tsim teeb meem tsis zoo, uas yog ib qho ntawm feem ntau tsis ua hauj lwm ntawm Ethernet hauv kev ua haujlwm.
Ob qho tib si tuab thiab nyias cables yog cov tsheb npav topologies, piv txwv li, ntau lub tshuab ntawm ib lub cable.Qhov kev tshawb fawb no yog qhov tsim nyog rau cov tuab ib puag ncig ib puag ncig, tab sis thaum ib qho kev tiv tauj, qhov tsis ua tiav yuav cuam tshuam txhua lub tshuab ntawm tag nrho cable hauv series.
Kev kuaj xyuas thiab kho qhov teeb meem yog qhov teeb meem, yog li ntawd, yuav maj mam hloov los ntawm unshielded twisted khub los yog fiber optic cable.
Coaxial cablesmuaj qhov zoo ntawm kev txhawb nqa high-bandwidth kev sib txuas lus ntev ntev, repeaterless kab, thaum lawv qhov tsis zoo yog pom tseeb.
Ua ntej, qhov luaj li cas ntawm ib tug loj, nyias cable txoj kab uas hla ntawm 3/8 nti tuab, coj mus rau ntau qhov chaw nyob rau hauv lub cable duct.
Qhov thib ob yog qhov tsis muaj peev xwm tiv taus tangles, kev ntxhov siab thiab kev khoov hnyav, txhua yam tuaj yeem ua rau cov qauv cable puas thiab tiv thaiv kev sib kis ntawm cov teeb liab.
Qhov kawg yog tus nqi siab, thiab tag nrho cov teeb meem no yog raws nraim li cas twisted khub tuaj yeem kov yeej, yog li nws tau pib hloov los ntawm twisted khub-raws li Ethernet lub cev txheej txheem hauv LAN ib puag ncig tam sim no.
Post lub sij hawm: Nov-03-2022