CWDM, tseem hu ua Coarse Wavelength Division Multiplexing, yog cov txheej txheem siv hauv kev sib txuas lus kho qhov muag kom muaj peev xwm ntawm cov fiber ntau optic cables uas twb muaj lawm.
A CWDM mux and demuxyog cov cuab yeej siv rau multiplex thiab demultiplex ntau lub wavelengths ntawm lub teeb ntawm ib qho fiber ntau optic cable. Lub mux, los yog multiplexer, sib txuas cov wavelengths ntawm ntau lub teeb liab mus rau hauv ib qho kev sib txuas teeb liab, thaum lub demux, los yog demultiplexer, cais cov wavelengths rov qab mus rau hauv ib tug neeg cov teeb liab ntawm lwm kawg ntawm cable.
CWDM mux thiab demux li feem ntau yog siv rau hauv point-to-point lossis point-to-multipoint applications, xws li chaw taws teeb sib txuas, cov ntaub ntawv chaw sib cuam tshuam, thiab cov chaw hauv tsev kawm ntawv. Lawv tso cai rau ntau lub teeb liab kis tau los ntawm ib qho fiber ntau optic cable, yog li txo tus nqi tag nrho thiab qhov nyuaj ntawm lub network.
Ib qho txiaj ntsig tseem ceeb ntawm CWDM mux thiab demux thev naus laus zis yog lub peev xwm los txhawb ntau yam kev cai thiab cov ntaub ntawv tus nqi ib txhij. Qhov no tso cai rau ntau hom tsheb khiav, xws li lub suab, yees duab, thiab cov ntaub ntawv, xa mus rau tib lub network infrastructure.
Lwm qhov zoo dua ntawm CWDM mux thiab demux li yog lawv qhov scalability. Raws li kev lag luam network nce, cov wavelengths ntxiv tuaj yeem ntxiv rau hauv lub network yam tsis tas yuav hloov cov fiber ntau optic cable uas twb muaj lawm. Qhov no tso cai rau tus nqi tsim nyog thiab hloov pauv tau yooj yim uas tuaj yeem ua raws li kev loj hlob yav tom ntej thiab nthuav dav.
Hauv kev xaus, CWDM mux thiab demux thev naus laus zis yog cov txheej txheem tseem ceeb thiab siv dav rau kev ua kom muaj peev xwm hauv network thiab txhim kho kev ua haujlwm hauv network. Los ntawm kev tso cai rau ntau lub teeb liab kis tau los ntawm ib qho fiber ntau optic cable, cov cuab yeej no muab cov kev daws teeb meem zoo thiab muaj peev xwm ua kom tau raws li qhov xav tau ntawm cov ntawv thov kev siv bandwidth niaj hnub no.