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Dab tsi yog "UTP, FTP, SFTP" network cable?

UTP — Unshielded Twisted Paired Twisted Paired.

STP - Shielded Twisted Pair Shielded network cable.

FTP - Foiled Twisted Pair aluminium foil shielding network cable.

aaaj 1

Qhov txawv ntawm "UTP, FTP, SFTP" hauv network cable:

UTP: Unshielded Twisted Pair.UTP tsis muaj hlau thaiv cov khoom thiab tsuas yog ib txheej ntawm insulating roj hmab npog.Nws yog pheej yig thiab hloov tau yooj yim rau network.Qhov zoo ntawm nws txoj hlua hluav taws xob yog cov nplaim hluav taws zoo thiab tsis tshua muaj hluav taws kub.

STP: Shield network cable;FTP yog aluminium foil shielded network cable; Lub qub yog ib lub npe dav, thaum lub tom kawg yog lub npe nqaim.Tab sis qhov tseeb, tam sim no shielding network kab yog aluminium foil shielding network kab, yog li, STP, FTP yog tiag tiag tib yam. Nyob rau hauv sib piv rau UTP, FTP / STP tsuas yog ib txheej ntxiv ntawm txhuas ntawv ci nyob rau sab nraud ntawm cov tub ntxhais hlau, thiaj li yuav txo tau cov teeb liab attenuation.Kev ua lag luam tsis tshua nyiam.

SFTP: Dual shielded network cable.Cov qauv ntawm cov hlau no yog ua los ntawm FTP / STP aluminium ntawv ci, ntxiv rau ib txheej ntawm tinned tooj liab braided net, feem ntau sab nraud yog PVC txheej quilt.Vim yog ib txheej ntawm tinned tooj liab braided net, tuaj yeem txo qhov sib nqus sab nraud, teeb liab. Kev cuam tshuam, kuj tuaj yeem txo qhov attenuation ntawm lub teeb liab sab hauv, nce qhov nro ntawm lub cable.Qhov tsis zoo yog tias cov xov zoo li no tsis zoo, tus nqi yog kim; Cov kab no feem ntau raug nqi ob zaug ntau npaum li UTP.Cov hlau zoo li no tsuas yog siv rau hauv cov xwm txheej tshwj xeeb xwb.


Post lub sij hawm: Jan-23-2021