CDRismainlytoextractthedatasequencefromthereceivedsignal, andrestoretheclocktimingsignalcorrespondingtothedatasequence, yog li kev tiv thaivthespecificinformationreceived.
CDRbandwidthisanimportantindicatorofCDR.Itmainlyaffectsthedatalocktimeandjitterindexoftheopticalmodule, uas yog hom kev pab cuam rau cov neeg tsis paub ua haujlwm.
ThedifferencebetweenDWDMwithCDRandwithoutCDR:
(1) ThetransceiverwithCDRhasthefunctionsofclockretimingandsignalshaping, sothesignalwillbebetter.
(2) Feem ntau, CDRaremostlyusedinhigh-ceev, ntev-distancetransmissionopticalmodules.
Yog li no, bydefaultSFP + modulesdon' thaveCDR, andXFPmodulesmusthaveCDR.
(3) Fortransceiversusedonaswitch, thereislittledifferencebetweenthetwo.YoucanchoosewithCDRorwithoutCDR.
