Xaiv Txoj Cai Kom Ncaj Ncees Kom Tawm rau MTP System
Txawm nyob hauv cheeb tsam network (LAN) chaw kawm ntawv lossis chaw qiv ntawm chaw khaws ntaub ntawv, peb nyob hauv txoj kev taug kev mus rau qhov chaw sib tw kom muaj zog kom tau raws li qhov kev xav tau ntawm qhov kev pabcuam thiab ua kom muaj kev sib txuas mus rau qhov sib txuas uake network. Muaj ntau lub network designers tig mus rau MTP lub cev pob tw cable rau hnub no tus fiber ntau kis tau tus mob thiab muab kev yoojyim txoj kev migration rau yav tom ntej cov ntaub ntawv uas yuav siv tib seem optics xws li 40/100G Ethernet. Yuav kom ntseeg tau tias kev ruaj siab MTP system zoo li kev yooj yim ntawm installation, txij nkawm thiab reconfiguration, xaiv qhov zoo polarity txoj kev yog qhov tseem ceeb heev. Hauv no ncej, peb yuav tsum qhia peb MTP kev coj ua polarity rau koj siv.
Polarity yog lub ntsiab lus siv hauv TIA-568 qauv los piav txog fiber ntau (xaim) kom paub tseeb tias txhua lub transmitter txuas nrog ib tus txais receiver ntawm lwm qhov kawg ntawm lub tshuab fiber ntau. Yuav kom meej meej, raws li peb txhua tus paub, cov qhov muag fais fab ntawm qhov txuas tau feem ntau yuav tsum tau muaj ob daim txiag kom ua tiav ib Daim Ntawv Cuam Tshuam Tag Nrho. Optical transceivers muaj ib qhov sib tshuam thiab tau txais sab, thiab feem ntau muab lub duplex fiber connector ua qhov interface. Nyob rau hauv kev siv installation, nws tseem ceeb heev kom ntseeg tau tias optical transmitter ntawm ib kawg yog txuas mus rau optical receiver ntawm lwm. Qhov kev txuam ntawm cov teeb liab ntawm txav (Tx) rau cov khoom siv tau txais (Rx) ntawm ob qho tag nrho ntawm qhov sib txuas ntawm fiber ntau yog raug xa mus ua polarity.
Yuav kom nkag siab zoo dua txhua txoj kev tuaj yeem, nws yog qhov tseem ceeb kom ua kom meej meej rau MTP connector qauv.
Txhua tus connector MTP muaj qhov tseem ceeb ntawm ib sab ntawm lub cev sib txuas. Thaum tus yuam sij tso saum toj, qhov no yog hu ua qhov tseem ceeb ntawm txoj hauj lwm, ntawm qhov tawm tsam, thaum lub ntsiab tseem ceeb nyob hauv qab, peb hu nws qhov tseem ceeb. Txhua qhov ntawm cov qhov txuas ntawm qhov sib txuas ntawm tus xov tooj yog nyob hauv kab tawm ntawm sab laug mus rau sab xis, thiab peb hu rau cov ntsiab lus no yog qhov tseem ceeb, los yog P1, P2, etc. Dhau li ntawm, muaj cov lus qhia dawb hauv qab ntawm lub cev sib txuas rau txoj hauj lwm 1 sab ntawm lub connector thaum nws tau txhaws. Feem ntau, MTP multi-fiber connector yog tus pin thiab qhov txuas sib txuas-ntxiv ntawm ib tug txiv neej sab thiab ib tug poj niam sab (txiv neej sab pins, thaum cov poj niam tsis muaj lub koob) raws li qhia hauv qab no. Cassette thiab hydra cable sibtham yog feem tsim nrog ib tug txiv neej connector, thaum lub cev pob zeb sib txuas ua ke feem ntau txhawb tus poj niam tus txiv neej.
Kev txhais los ntawm TIA / EIA-568-B.1-7, muaj peb txoj kev polarity rau MTP system-txoj txuj A, hom B thiab hom C. Cov hau kev no txhais cov kev txhim kho thiab kev tswj hwm polarity, thiab muab kev taw qhia hauv kev xa cov hom ntawm MTP fiber ntau txuas. Thaum ib txoj kev xaiv raug xaiv lawm, cov kev xyaum ua haujlwm no yuav tsum muab tso rau hauv qhov chaw kom muaj qhov qhia kom zoo rau txhua qhov chaw.
Txoj Kev A: Hauv txoj kev, nws yuav tsum tau muaj ob hom A cassettes nrog cov key-up rau qhov tseem ceeb-down adapters, ncaj-los ntawm qhov tseem ceeb-mus rau MTP lub cev ntim ntawm qhov tseem ceeb xws li ob chav cab. Qhov no, qhia hauv qab tswj npe rau Fiber 1 thoob plaws hauv qhov kho qhov muag Circuit Court. Fiber 1 nyob rau hauv qhov kawg ntawm kab cassette mates rau Fiber 1 hauv lub cev pob zeb sib tov, uas sib koom ua ke rau Fiber 1 hauv cov chaw taws teeb hauv tej thaj chaw deb. Lub tshuab hluav taws xob yog ua tiav los ntawm kev siv ib qho "A-rau-A" ib qho rau ntawm qhov pib thiab "A-rau-B" thaj chaw khi kom muaj txoj hauv kev zoo rau kev xa tawm.
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Pros: Nws muab qhov yooj yim txiag, ua haujlwm rau ib hom thiab multimode raws, thiab yooj yim txhawb network extensions.
Cov Lus Cog Tseg: Yuav tsum muaj "pre-configured" A-rau-A "lub thaj ua haujlwm, los yog kev teeb tsa ua ib yam nkaus.
Hom B: Hom Polarity txoj kev, txoj kev B lub cev yuav tsum muaj qhov tseem ceeb-mus rau lub tshuab xa mus txuas rau txuas los yog MTP pob tw hom kab hlau txuas B. Lub tshuab hluav taws xob yog tiav los ntawm kev siv ncaj nraim "A-rau-B" thaj chaw nyob ntawm thaum pib thiab qhov kawg ntawm qhov txuas, thiab tag nrho cov neeg siv khoom ntes yuav tsum muaj qhov tseem ceeb-tu rau qhov tseem ceeb. Hom tshuaj mesh no muaj peev xwm ua kom muaj kev sib tw, lub ntsiab lus uas Fiber ib tug sib tham nrog Fiber kaum ob, Fiber ob yog mated nrog Fiber kaum ib, thiab lwm yam. Kom ua kom zoo khiav lag luam nrog cov qauv no, ib lub cassette xav tau cev nqaij daim tawv hauv tsev, ces Fiber kaum ob yog mated nrog Fiber ib qhov kawg ntawm qhov link.
Cov Luag Haujlwm: Nws yuav tsum tau ib qhov chaw rau cov khoom thiab "A-rau-B" thaj twj thaj nkaus xwb. Dhau li ntawd, nws yog ib tus qauv uas muab txoj kev tsiv mus rau kev sib luag ntawm txoj kev sib tw.
Cov Lus Ceeb Toom: Qhov no tseem ceeb rau txoj kev ua kom tau tus kheej yuav tsum tau npaj theem qis tshaj kom thiaj li tswj tau qhov polarity ntawm cov kev sib txuas, thiab kom paub qhov twg qhov kev cuam tshuam qhov twg yuav tsum tshwm sim. Ntxiv mus, nws tsuas yug cov tshuab fiber ntau multimode.
Hom C: Tus qauv C qhia hauv qab no, nrog qhov tseem ceeb-tu rau qhov tseem ceeb-down adapter nyob rau hauv lub cassette, zoo li lub hom A. Txawm li cas los xij, qhov txawv ntawm hom no thiab hom A yog tias qhov hlua khi tsis tshwm hauv qhov hlua khi kawg, tab sis nyob rau hauv cov khoom cable nws tus kheej. Hauv qhov no, cov fibre ntawm txoj hauj lwm 1 ntawm ib kawg ntawm qhov cable yog pauv mus rau txoj hauj lwm 2 ntawm lwm qhov kawg ntawm kab ntawv. Cov fiber ntau ntawm txoj hauj lwm 2 ntawm ib kawg yog txav mus rau txoj hauj lwm 1 ntawm qhov kawg, thiab lwm yam.
Tshaj: Qhov qauv no yuav tsum muaj ib hom ntawv cassette, yooj yim los tsim thiab yuav khoom, thiab nws tuaj yeem pab txhawb tib leeg tib hom thiab cov tshuab fiber ntau multimode.
Cov Lus Coj: Ib qho kev cuam tshuam ntxiv rau hom no yog tias nws tsis txhawb qhov sib txuam ntawm qhov muag thiab tsis muaj kev ntseeg dua li hom A.
Peb tau sib tham txog peb txoj kev polarity rau MTP system, thiab qhia tus tshaj tawm thiab pom ntawm txhua tus. Kev xaiv txoj kev kom zoo rau MTP system, koj yuav tsum nyhav ob qhov zoo thiab qhov tsis zoo.
