Txuas Cov Yav Tom Ntej Nrog FTTH Cables
Muaj ntau thiab ntau dua FTTH (Fiber rau lub tsev) tes hauj lwm tau thiab yuav raug ntsia hauv cov neeg rau hauv lub tsev vim tias kev cog qoob loo xav tau ntau dua li bandwidth thiab kho kom zoo dua ntawm lawv cov thev naus laus zis. Ntau yam ntawm FTTH cables raug raws li tsim muaj xws li feeder cable, faib cable, poob cable, thiab lwm yam. Niaj hnub no, kab lus no yuav qhia peb hom FTTH cables hauv cov ntsiab lus. Ua ntej piav cov peb FTTH cable, ua ntej koj yuav tsum paub lawv ua haujlwm li cas hauv FTTH network.
Cable Segment hauv FTTH Network
Nkag mus rau Network Sab Nraum Tsob Nroj (OSP) cabling tuaj yeem muab faib ua peb ntu, hu ua feeder cable, faib cable, xa cable. Daim duab 1 muab qhov kev pom yooj yim ntawm FTTH network infrastructure hais txog.
Los ntawm daim duab saum toj no, peb paub tias cov khoom noj me me cable feem ntau txuas nrog ntawm Access Node mus rau Primary Fiber Concentration Point (FCP) los muab cov khoom tsim nyog fiber ntau tuaj yeem ua haujlwm rau thaj tsam FTTH. Nws feem ntau yog siv ob peb kilometer nrug. Cov xa xov hluav taws xob tsuas yog nyob deb ntawm tsawg dua 1 km khiav ntawm FCP txuas ntxiv mus rau hauv FTTH network. Thaum kawg, qhov poob cable ua qhov kawg txuas sab nraud txuas rau cov neeg txuas thiab sau los ntawm lub davhlau ya nyob twg mus rau cov neeg lag luam nrog qhov kev txwv nrug rau tsawg dua 500 m thiab feem ntau muaj tsawg dua nyob rau hauv qhov chaw siab. Kev ua haujlwm ntawm peb txoj kab hluav taws xob hauv FTTH network tau nthuav qhia luv luv rau koj nyob rau hauv cov ntawv sau saum toj no, thov nyeem rau kom paub ntau ntxiv txog lawv.
Feeder Cable
Hauv FTTH network, pub rau cable pom nyob hauv daim duab 2 feem ntau yog txuas nrog lub nplhaib topology txuas ntawm lub chaw haujlwm mus rau Central Convergence Point (LCP) los muab cov kev sib txuas rau ib lossis ntau qhov chaw xa khoom hluav taws xob. Ib qho feeder cable feem ntau pab rau ntau lub xov tooj xa hluav taws xob uas yuav txo qis tus nqi ntawm cov kho qhov muag cable, uas muab cov nqi qis kawg ntawm kev txhim kho FTTH network. Txoj kab xev no, tseem hu ua pob tw cable, muaj qhov ntim zoo tshaj plaws, txij li txhua cov fibers raug nteg hauv kab, feem ntau ntawm 12 fibers, thiab nteg rau saum ib leeg. Nws feem ntau siv lub nplhaib txheej txheem, uas yooj yim rau kev nthuav dav ntawm thaj chaw npog thaum lub hauv paus kom paub tseeb tias kev ruaj ntseg network.
Faib Cable
Hauv FTTH system, cov xaib hluav taws xob (daim duab 3) pib los ntawm LCP thiab khiav mus rau kev nkag mus hauv cov neeg zej zog. Lawv yog cov kab txuas nruab nrab txuas txuas rau feeder cable cov kab ke thiab cov xaim poob haujlwm hauv kem. Nws tau zoo dua txais yuav cov qauv ntoo nrog cov txheej txheem fiber ntau kom txuag tau qhov kev ua lag luam engineering. Raws li pom hauv daim duab 2, cable xa tuaj yog nrov tshaj plaws FTTH sab hauv cable rau nws qhov loj me me thiab lub teeb yuag. Nws muaj ob peb txoj hlua khi uas muaj lub ntsej muag nyob hauv tib lub tsho nrog Kevlar lub zog thiab qee zaum cov pas nrig fiberglass txuas ntxiv txhav txhav txhav rau hauv lub cable thiab tiv thaiv kinking. Cov xaim hluav taws xob no tau siv rau kev siv luv, qhov rooj khiav nrawm, riser thiab plenum kev siv.
Tee Cable
FTTH poob cable (daim duab 4) txuas Network Access Point (NAP) rau cov neeg siv khoom. Tso cov xaim hluav taws xob yog tsim nrog cov cwj pwm xws li hloov tau yooj yim, hnyav dua me me, txoj kab taub me dua, kev nkag mus yooj yim rau fiber ntau thiab txiav. Lawv cov qauv thiab ua tiav lawv cov kev ua tau zoo tau tsim kho kom muaj peev xwm ua haujlwm nrog ntau yam FTTH thov. Tso cov xaim hluav taws xob tsuas yog muaj 1 lossis 2 kab hluav taws xob rau kev sib txuas ntawm cov xov hluav taws xob thiab tej zaum muaj cov fibers ntxiv rau thaub qab lossis rau lwm qhov laj thawj network. Cov hlau no muaj cov xov tooj fiber ntau thiab muab qhov txuas rau cov tub luam, tsis muaj kev sib txawv hauv network. Tso tseg cov xov tooj tuaj yeem tau muab faib ua 3 hom: ncaj qha faus cable, tshuab cua fiber ntau cable thiab xov cable rau saum nruab ntug.
Nws yog qhov tseem ceeb tshaj plaws tias cov khoom siv hluav taws xob tau siv nyob rau hauv txoj kev xws li kev tsim qauv, kev tsim kho, kev tu thiab kev ua haujlwm rau FTTH tau tiav. Yog li, txhawm rau xaiv cov fiber ntau haum rau FTTH yog qhov tseem ceeb. FOCC muab ntau yam ntawm FTTH fiber ntau kho qhov txuas nrog rau FTTH feeder cable, FTTH poob cable, FTTH faib cable, thiab lwm yam Yuav kom txiav cov khoom siv nqi thiab ceev cov txheej txheem kev teeb tsa rau peb cov neeg siv khoom, FOCC's FTTH cable tsim yuav yooj yim rau koj qhov project.