LAN Cable Kis Rau Nruab Nrab

LAN Cable Kis tau tus kab mob

daim ntawv thov

Optical fiber ntau yog ib qho kev cog lus nruab nrab rau kev sib kis network. Tab sis vim hais tias tus nqi tam sim no kim kim, qhov chaw ua haujlwm me me thiab qhov nruab nrab tsis tsim nyog tau xaiv nws. Lub ntsiab lus ntawm cov khoom siv fiber ntau yog siv los ua cov kab hauv loj hauv LAN. Tab sis nrog rau cov nqi txo, yav tom ntej, lub fiber ntau rau lub tsev, mus rau lub qhov rooj, yuav txawm ntev mus rau lub desktop, muab peb ib tug tag nrho tshiab high-ceev kev.

Twisted-pair editing

kev faib tawm

Twisted-pair (Twisted Pair) tau muab faib ua ob sab (Shielded Twisted Pair, STP) thiab Unshielded (Unshielded Twisted Pair, UTP) ob hom.

shielding

Qhov sib tsoo hu ua rau sab nraud ntawm lub teeb liab ntawm lub xov tooj cua yog qhwv rau hauv ib lub hlau mesh, sab nraum lub shielding txheej yog lub rwb thaiv tsev daim tawv, tus txheej txheem shielding tuaj yeem cais tawm sab nrauv electromagnetic teeb liab.

Lub npe keeb kwm

UTP yog ib qho ntawm cov nquag siv tes hauj lwm hauv LAN. Cov xov hlau tau them rau yim lub teeb tsa kab hauv cov yas insulating sheath. Lawv muaj yim xim. Lawv yog: dawb txiv kab ntxwv, txiv kab ntxwv, xim ntsuab, xiav, dawb xiav, ntsuab, dawb xim av thiab xim av (568B kev sib lawv liag). Txawm tias muaj yim kab, tsuas plaub yog qhov tseem ceeb. Lawv yog: dawb txiv kab ntxwv, txiv kab ntxwv, dawb ntsuab thiab ntsuab. Txhua tus ntawm lawv yog twined ua ke, sib sau ib tug tag nrho ntawm plaub khub, li no lub npe ntawm tus khub twisted.

Lub hom phiaj ntawm intertwining

Lub hom phiaj ntawm nkawm twisted yog siv lub electromagnetic teb los ntawm qhov tam sim no nyob rau hauv tooj liab hlau mus rau counteract lub cuam tshuam ntawm cov neighboring txoj kab thiab txo qhov cuam tawm sab nraud. Txhua tus kab ntawm txhua tus neeg hauv txhua nti ntev pes tsawg tus txiav txim siab txog kev muaj peev xwm los tiv thaiv kev sib txuas lus thiab kev sib txuas lus zoo, kev sib zog, qhov ntau dua qhov zoo ntawm kev sib txuas lus, network tuaj yeem txhawb siab dua tus nqi hloov ntaub ntawv, ntawm chav kawm, siab dua tus nqi ntawm nws yog. Thoob ntiaj teb hluav taws xob thiab kev sib txuas lus, EIA / TIA? Hauv Kev Lag Luam Koom Tes / Kev Lag Luam Hauv Tsev Lag Luam Koom Tes tau tsim cov qauv thoob ntiaj teb thiab raws li kev siv ntawm UTP cable nws muab faib ua tsib Pawg (Pawg los yog CAT), txhua pawg ntawm cable manufacturers hauv insulating sheath ntawm yam, xws li CAT - 5 los yog Pawg - 5, peb yuav tsum them nyiaj rau thaum xaiv thiab yuav.

Siv qhov ntev

CAT - 3 thiab CAT - 5 yog siv ntau hom computer network, tsis muaj kev sib txuas hauv lwm qhov txuas network (xws li lub hub), raws li ib lub sijhawm ntawm CAT - 3, CAT - 5 siab tshaj plaws siv sijhawm ntev yog 100 metres, 100 puag - TX enhanced network yog tsawg tshaj 220 meters. Lub npe hu ua super - tsib kab, uas yog feem ntau tau hais, yog CAT - 5 tus qauv uas lub khw tau tsim tsa kom muaj kev sib txuas lus, thiab tsis tau lees paub los ntawm EIA / TIA.

RJ 45 siv lead ua taub hau -

UTP cable siv RJ - 45 siv lead ua lub taub hau mus txuas, RJ45 connector yog ib hom kev ruaj ntseg tsuas tau ntxig thiab txiav kom tiv thaiv tsis tau cov yas connectors, cables hauv txhua lub hauv paus teeb liab kab xav siv tshwj xeeb kab pressing pliers ua kom zoo zoo nrog RJ - 45 cuag, raws li kev sib txawv network ceev thiab txheem network qauv, cheej nyob ntawm kev sib txuas nrog kev twb kev txuas cable kuj sib txawv.