Nekuenderera mberi kwekusimudzira kweindasitiri yekukurukurirana, matekinoroji matsva uye mhinduro dzekuchengetedza mari dzinoramba dzichiwana.Semuenzaniso, CWDM neDWDM zvigadzirwa zviri kuwedzera kushandiswa zvakanyanya, saka nhasi tichadzidza nezveCWDM neDWDM zvigadzirwa!
CWDM inodhura yakaderera WDM yekufambisa tekinoroji kune yekuwana layer yemetropolitan area network.Nepamoyo chengetedza zviwanikwa zvefiber uye mutengo wetiweki, inogadzirisa matambudziko maviri ekushomeka kwefiber uye kutapurirana pachena kwemasevhisi akawanda.Iyo network inogona kuvakwa uye bhizinesi rinogona kuitwa munguva pfupi.
Zvakanakira zveCWDM:
※ Kunyanya kukosha kweCWDM ndiyo yakaderera mutengo wemidziyo.
※ Inogona kuderedza mutengo wekushandisa wetiweki.
※ Inogona kuwedzera zvakanyanya simba rekutapurirana kwefiber optical uye kugadzirisa mashandisirwo eiyo optical fiber zviwanikwa.
※ Saizi diki uye yakaderera simba mashandisiro.
※ Iine yakanaka kuchinjika uye scalability
DWDM inogona kusanganisa uye kutumira mawavelengths akasiyana mufiber imwechete panguva imwe chete.Kuti ibudirire, imwe fiber inoshandurwa kuita akawanda mafibers.DWDM inowanzova nemafomu maviri ekukumbira: DWDM yakazaruka uye DWDM yakabatanidzwa.
Zvakanakira zveDWDM:
※ Iyo protocol uye yekumhanyisa kumhanya haina basa.
※ Iyo multiplexer uye splitter yeiyo yakabatanidzwa DWDM sisitimu inoshandiswa zvakasiyana pane inotumira uye inogamuchira.
※ Iyo yakabatanidzwa DWDM midziyo ine chimiro chakareruka uye vhoriyamu diki, ingangoita chikamu chimwe chete muzvishanu chenzvimbo inogarwa neDWDM yakavhurika, kuchengetedza komputa kamuri zviwanikwa.
※ Iyo yakabatanidzwa DWDM sisitimu inongoshandisa passive components (zvakadai semultiplexers kana demultiplexers) pakugamuchira uye kutumira magumo.Telecom vanoshanda vanogona kuisa maodha zvakananga kubva kune vagadziri vezvishandiso, vachidzikisa zvinongedzo zvekupa uye nemitengo yakaderera, nekudaro kuchengetedza mutengo wemidziyo.
CWDM neDWDM ese ari maviri wavelength division multiplexers, saka ndeupi musiyano uripo pakati pawo?CWDM (kureva, sparse wavelength division multiplexing) uye DWDM (kureva, dense wavelength division multiplexing), chaizvoizvo tinogona kuona musiyano pakati pezviviri: "dense" uye "sparse".Sparse Wavelength Division Multiplexing, sekureva kunoita zita, ihama yepedyo yeDense Wavelength Division Multiplexing.
Kusiyana kwavo kunonyanya kuratidzwa muzvikamu zvitatu zvinotevera:
1) CWDM carrier channel spacing yakakura, saka, chete 5 kune 6 wavelengths yemafungu echiedza inogona kuwedzeredzwa pane imwechete optical fiber, uye musiyano pakati pe "sparse" uye "dense" mazita anobva pane izvi;
2) CWDM modulated laser inoshandisa isina kunyungudutswa laser, nepo DWDM inoshandisa inotonhorera laser.Iyo laser yakatonhorera inoshandisa tembiricha tembiricha, uye iyo isina kutonhorera laser inoshandisa magetsi tuning.CWDM ikozvino yave yakakurumbira pakati pevazhinji bhizinesi application vanopa.Zvichitaurwa zviri nyore: DWDM kupatsanurwa kweCWDM.
3) Iyo midziyo yekushandisa nharaunda yakasiyana.CWDM inonyanya kushandiswa mu convergence layer uye yekuwana layer;DWDM inoshandiswa munharaunda yekufambisa njanji yekushanda.
Nguva yekutumira: Jul-03-2021