Txawm tias muaj kev txav deb ntawm wireless technologies, ntau lub computer network nyob rau hauv lub xyoo pua 21st tseem vam khom cov cables raws li lub cev nruab nrab rau cov khoom siv los hloov cov ntaub ntawv. Muaj ntau hom kev siv network cables , txhua tus tsim tawm rau cov laj thawj.
Coaxial Cables
Yij hauv lub 1880s, "coax" zoo tshaj plaws hu ua hom kab uas txuas nrog cov TV hauv TV rau hauv tsev antennas. Coaxial cable kuj yog ib qho qauv rau 10 Mbps Ethernet cables . Thaum 10 Mbps Ethernet tau nrov tshaj plaws, thaum lub sijhawm xyoo 1980 thiab 1990, lub network feem ntau tau siv ib hom ob hom kab coax cable - thinnet (10BASE2 tus qauv) los yog thicknet (10BASE5). Cov cables no muaj xws li ib lub puab hlau tooj liab uas ua kom tuab tuab nyob ib ncig ntawm rwb thaiv tsev thiab lwm qhov thaiv. Lawv txoj kev nruj zog ua rau cov neeg saib xyuas network tsis yooj yim rau kev txhim kho thiab ua kom muaj thinnet thiab thicknet.
Twisted Pair Cables
Twisted khub nws thiaj li pib thaum lub sijhawm xyoo 1990 los ua tus qauv cab rau Ethernet , pib ntawm 10 Mbps ( 10BASE-T , kuj yog Qib 3 los yog Cat3 ), tom qab ntawd tau txais kev pom zoo rau 100 Mbps (100BASE-TX, Cat5 , thiab Cat5e ) thiab zoo dua mus nce ceev txog 10 Gbps (10GBASE-T). Ethernet twisted pair cables muaj txog yim (8) xaim hluav taws ua ke ua ke ua ke kom txhob cuam tshuam rau electromagnetic cuam tshuam.
Ob thawj hom kev sib tw ua qauv rau kev lag luam qauv tau muab piav qhia: Cov neeg tsis sib koom (UTP) thiab Shielded Twisted Pair (STP) . Cov kab hluav taws xob niaj hnub siv UTP thaiv vim nws cov nqi qis, thaum STP cabling muaj nyob rau hauv lwm hom kev lag luam xws li Fiber Distributed Data Interface (FDDI) .
Fiber Optics
Hloov cov hlau uas muaj hlau tsis muaj hluav taws xob xa tawm hluav taws xob, fiber optic network cables ua haujlwm siv cov iav thiab pulses ntawm lub teeb. Cov kab no network yog bendable txawm yog ua los ntawm iav. Lawv tau pom zoo tshwj xeeb nyob rau hauv thoob plaws cheeb tsam network (WAN) cov chaw nyob qhov twg qhov chaw nyob ntev hauv qab los yog sab nrauv cable yuav tsum tau ua thiab kuj nyob hauv cov chav ua haujlwm cov chaw uas muaj qhov ntim ntawm kev sib txuas lus.
Ob hom kev siv fiber ntau optic cable qauv txhais - ib hom (100BaseBX txuj) thiab multimode (100BaseSX txuj). Cov tes hauj lwm mus ntev ntev hauv kev sib txuas lus siv ntau hom siv rau nws cov peev xwm ntau dua, thaum lub zos cov koom tes feem ntau siv cov multimode es tsis yog vim nws qis tus nqi.
USB Cables
Feem ntau Cov Kev Siv Serial Serial Bus (USB) txuas ib lub computer nrog ib lub tshuab ntaus peripheral (keyboard los yog nas) es tsis mus rau lwm lub computer. Txawm li cas los xij, tshwj xeeb network adapters (qee zaus hu ua dongles ) kuj tso cai txuas rau Ethernet cable mus rau ib qho chaw nres nkoj USB . USB cables feature twisted khub thaiv.
Serial thiab Tshw Parallel Cables
Vim tias muaj coob tus PCs hauv xyoo 1980s thiab ntxov ntxov xyoo 1990 twb tsis muaj peev xwm Ethernet, thiab USB tsis tau tsim, tsis tau tsim thiab cov khoom siv sib txuas (tam sim no tsis ua haujlwm rau cov computers tshiab) tau qee zaum siv PC-rau-PC networking. Yog li ntawd, hu ua qauv qauv cables , piv txwv li, txuas nrog cov chaw nres nkoj ntau ntawm ob lub npav pub rau cov ntaub ntawv xa mus rau ntawm kev sib txuas ntawm 0.115 thiab 0.45 Mbps.
Crossover Cables
Cov qauv cables piv txwv yog ib qho piv txwv ntawm cov qauv ntawm kab kev hla kev . Ib qho crossover cable koom ob lub network khoom ntawm tib hom, xws li ob lub PCs los yog ob lub network keyboards .
Kev siv cov cab hluav taws xob Ethernet crossover yog tshwj xeeb tshaj rau cov laus hauv tsev laus xyoo dhau los thaum txuas ob lub PC nrog ncaj qha ua ke. Tshaj tawm, Ethernet crossover cables yuav luag zoo tib yam rau tej yam yooj yim (qee zaus kuj hu ua ncaj-ncaj qha ), qhov sib txawv ntawm qhov pom ntawm qhov xim ntawm cov xaim hluav taws xob uas pom tshwm ntawm cov kab txuas kawg. Cov kws ua lag luam feem ntau siv cov cim tshwj xeeb cov cim rau lawv cov kab kev hla mus rau qhov laj thawj no. Tam sim no, tab sis, feem ntau cov tsev tes hauj lwm siv khiav cov txheej txheem uas muaj kev sib tw ua kom tiav, tshem tawm qhov kev xav tau ntawm cov cables tshwj xeeb.
Lwm hom Network Cables
Qee cov tub txawg sib tham siv lub sij hawm ib kab ntsig kab rau xa mus rau txhua hom kab kev sib txuas ncaj nraim mus rau ib lub homphiaj rau ib ntus. Coax, twisted khub thiab fiber ntau optics ntawm thaj cab cab txhua yam nyob ua ib ke. Lawv sib koom nrog tib lub zog xws li lwm hom cables tsuas yog tias lub tswb ntim yuav yog luv luv.
Powerline network systems siv lub tsev cov qauv hluav taws xob thaiv rau cov ntaub ntawv sib txuas lus uas siv tshwj xeeb adapters txhaws rau hauv phab ntsa.