CDR moos cov ntaub ntawv rov qab muaj nuj nqi plays lub luag haujlwm tseem ceeb hauv cov txheej txheem ntawmkho qhov muag moduleteeb liab kis tau tus mob, hnub no, peb yuav qhia rau koj seb yog dab tsi yog CDR moos cov ntaub ntawv rov qab.
CDR lub npe tag nrho yog Clock thiab Data Recovery, txhais ua moos cov ntaub ntawv rov qab, tuaj yeem nkag siab yooj yim xws li: lub receiver sab ntawm cov teeb liab kho qhov muag rau hauv lub teeb liab hluav taws xob, los ntawm txoj kev, lub zog hluav taws xob ntawm lub shaping thiab moos rov qab. CDR muaj ob lub luag haujlwm tseem ceeb, thawj zaug yog muab lub receiver sab ntawm lub moos teeb liab; Qhov thib ob yog lub teeb liab tau txais rau kev txiav txim, los pab txhawb kev rov qab los ntawm cov ntaub ntawv teeb liab thiab kev ua haujlwm tom qab.
Vim hais tias cov teeb liab optical kis tau tus mob mus rau ib qho kev ncua deb, feem ntau nyob rau hauv qhov kev ncua deb, lub waveform yuav tshwm sim ib tug degree ntawm distortion, lub teeb liab tau txais nyob rau hauv lub receiver kawg yog ib tug mem tes teeb liab ntawm qhov sib txawv ntev, lub sij hawm no ntawm lub receiver kawg, peb yuav tsis tau. tau cov ntaub ntawv peb xav tau. Yog li ntawd, lub sij hawm no yuav tsum muaj lub teeb liab regeneration, teeb liab regeneration muaj nuj nqi rau re-amplification, re-shaping thiab re-lub sij hawm, qhov twg lub sij hawm re-time hais txog CDR moos cov ntaub ntawv rov qab.
Hauv luv luv, CDR moos cov ntaub ntawv rov qab ua haujlwm hauvkho qhov muag moduleyog lub luag haujlwm loj tshaj plaws yog ua kom lub teeb liab ntawm qhov kawg tau txais thiab xa qhov kawg ntawm lub teeb liab kom tswj tau qhov sib xws. Feem ntau yuav siv rau CDR kho qhov muag module, feem ntau yog qee qhov kev kub ceev, qhov ntev ntawm kev sib kis ntawm optical module, piv txwv li: 10G SFP ntxiv rau ER / 10G SFP ntxiv rau ZR feem ntau yuav siv, kev siv CDR nti optical module yuav raug xauv tus nqi, tuaj yeem tsis raug siv los txo qis.
