Tam sim no, optical fiber ntau bandwidth yog siv nyob rau hauv cov ntaub ntawv kis tau tus mob nyob rau hauv peb lub teb chaws. Lub bandwidth uas yuav kis tau thiab nqa los ntawm fiber ntau yog dav, tab sis cov ntaub ntawv kis tau tus mob yog txwv, uas ua rau ib tug tsawg siv tus nqi ntawm fiber broadband, uas yog tsawg tshaj li 10 feem pua ntawm tag nrho cov bandwidth nyob rau hauv ntau qhov teeb meem, ua rau ntau tshaj. khib nyiab. Los ntawm kev siv DWDM thev naus laus zis, cov ntaub ntawv tau ua tiav tag nrho hauv ib qho kev kho qhov muag fiber ntau, kom cov fiber ntau optical bandwidth tuaj yeem siv tag nrho, uas tsis tuaj yeem txhim kho tag nrho cov kev siv tus nqi ntawm optical fiber bandwidth, zoo txo cov khoom pov tseg thiab cov khoom siv. poob, tab sis kuj txo tus nqi ntawm kev lag luam kev lag luam. Tam sim no, kev lag luam hauv tsev DWDM hauv kuv lub tebchaws tuaj yeem xa 49.6 lab hu xov tooj. Nrog rau txoj kev loj hlob ntawm kev tshawb fawb thiab thev naus laus zis, DWDM thev naus laus zis tau maj mam txhim kho, txhim kho kev ua haujlwm ntawm DWDM thev naus laus zis, nthuav dav lub peev xwm ntawm DWDM thev naus laus zis, thiab nce qhov chaw rau nqa lub peev xwm infinitely.
Los ntawm kev siv DWDM thev naus laus zis, tus naj npawb ntawm optical fibers tau maj mam txo. Los ntawm kev ua tiav cov teeb liab ua ntej, kev ua haujlwm raug txo qis, cov nqi khiav lag luam tau txais kev cawmdim, thiab kev siv tus nqi ntawm optical fiber bandwidth tau zoo tuaj. Hauv cov txheej txheem kev sib tham, daim ntawv thov ntawm DWDM thev naus laus zis tuaj yeem txo cov nqi sib txuas thiab cov nqi lag luam ua haujlwm. Piv nrog rau cov tsoos division multiplexing technology, nws cov qauv network feem ntau yog siv DWDM thev naus laus zis. Lub network qauv yog ruaj khov, lub network hierarchy yog qhov tseeb, lub network txheej txheem yog yooj yim, lub network ib puag ncig yog optimized, thiab lub zuag qhia tag nrho yooj ntawm lub network yog txhim kho.
Qhov kis ceev ntawmDWDMtsis muaj feem xyuam nrog cov txheej txheem, uas yog qhov tseem ceeb kom zoo duaDWDM. Cov ntaub ntawv xa tawm raws li DWDM network feem ntau siv IP raws tu qauv, ATM, Ethernet raws tu qauv, SONET / SDH rau kev sib kis, thiab tswj cov ntaub ntawv khiav hauv 2.5Gb / s. Lub network raws li DWDM tuaj yeem xa cov ntaub ntawv sib txawv ntawm qhov sib txawv ntawm qhov ceev ntawm laser channel. Hauv cov txheej txheem kev sib kis, qhov teeb meem uas tsis tas yuav tsum tau txiav txim siab yog nws tus kheej lub teeb liab tus nqi thiab cov ntaub ntawv tus yam ntxwv, kom cov ntaub ntawv tuaj yeem sib cais thiab sib xyaw ua ke.
Lub network raws li DWDM tuaj yeem hloov kho tsis tu ncua kom nthuav dav nws lub peev xwm thiab ua rau nws qhov chaw elastic nce infinitely. Thaum ua tau raws li cov kev xav tau ntawm cov neeg siv, cov haujlwm tshiab yav tom ntej tuaj yeem txaus siab thiab lav rau ntawm txoj kev txhim kho. Kev khiav hauj lwm ceev thiab kev pabcuam teeb liab hom DWDM thev naus laus zis sib txawv, kom tag nrho lub network muaj qhov pom tseeb.
(5) Kev sib txawv ntawm kev pabcuam network.
DWDM tsis muaj dab tsi ua nrog raws tu qauv thiab kis tus nqi. DWDM network tuaj yeem cuam tshuam nrog SDH, ATM, IP thiab lwm yam teeb liab raws li qhov ua kom pom tseeb, txhawm rau muab ntau yam kev pabcuam rau lub network.
