CWDM nyob rau hauv optical fiber ntau kis network ntawm cov kev daws teeb meem
SAB LAJ
1. Lub keeb kwm ntawm qhov project: Xov tooj cua thiab TV tes hauj lwm hauv kev lag luam kev lag luam yog ceev dua hauv cheeb tsam muab, yog thaj av loj hlob kev kawm siv network, vim cov khoom siv fiber ntau yav dhau los yog siv cable cable network, optical fiber Cov kev pabcuam tsis yog kev nplua nuj, ntau lub nroog rau lub nroog tsis muaj cov khoom siv hluav taws xob ntxiv, los mus nce cov ntaub ntawv ua lag luam, tam sim no xav kom nyob hauv cov kabmob ntawm fiber optic cable TV siv dua, ntxiv rau cov ntaub ntawv infomation, lossis xav mus pw tawm ntawm lwm txoj kab, puas yuav tsum ua kom daws tau ntau lub zos hauv cheeb tsam no rau thaj chaw mountainous, cable tso tsis yooj yim, xav txog ntau yam xws li cov kev pab, cov nqi, hauv xov tooj cua thiab TV tes hauj lwm tuam txhab tshwj xeeb hauv kev kho qhov muag network access technology co., LTD. Shenzhen FOCC CWDM system los mus ua ib qho kev soj ntsuam thiab cov khoom sib tw ua ke.Thiab pib hauv thaj chaw xws li kev kawm txuas mus rau Ib qhov project ntawm txhua qhov NRUAM ntau ntau cov khoom siv FOCC CWDM.
2. Network topology
Cov xov tooj cua thiab xov xwm TV ntawm CWDM qhov project tam sim no yog siv rau kev siv qhov kev kawm network (10/100 MBPS Ethernet) cov kab sib txuas sib txuas thiab kab ua lag luam hauv TV, qhov kev taw qhia tam sim no nrog yim sib ntsib sib txawv, sib koom 3 teev ntawm FOCC cov khoom CWDM.
Hauv qhov kev hloov no, Ib chav hauv chav kawm - Hloov B hauv 2 10/100 MBPS thiab A cable TV teeb liab, uas yog raws li WDM CWDM, ob 10/100 MBPS pib tom qab FOCC C5002S los ntawm Fiberstore HA - WDM multiplexer, thiab cable teebmeem hauv TV thiab rov qab siv tag nrho txoj kev mus rau Ib tus fib kis, hloov mus rau point B thaj av, nruab nrab kis ntawm 50 km, siv thiab Ethernet cable TV teeb liab ntawm cov kua CWDM ntawm kev sib kis kab sib txuas ntawm hybrid.
Ib chav - C nodes siv hiav txwv pegatron C5002S system nrog kev kub ceev thiab CWDM davhlau siab transceiver tau koom tes nrog kev siv, paub ob txoj kev 10/100 MBPS ntawm kev sib txuas ntawm hybrid Ib qho fiber ntau qhov muag.
ADE los ntawm FOCC C5004S system sib txuas ntau yam kev sib txuas ntawm kev kub ceev thiab coj tus CWDM transceiver siv 4 10/100 MBPS cov lus ceeb toom Ib qhov khoos pob optical fiberation, los ntawm txoj kev kub ceev kev sib txuas ntawm txhua tus neeg, los ntawm lub dav hlau CWDM wavelengths optical transceiver txuas nrog A kev sib txuas lus, tom qab C5004S system hauv lub computer chav 4 ntau qhov sib txawv, feem ntau nyob rau hauv ntau lub wavelengths xa mus rau txhua qhov chaw, tom qab D thawj lub tsev kawm ntawv, los ntawm kev kub ceev download lub teeb liab hauv zos, qhov seem 3 mus txuas ntxiv ntawm txoj kev teeb tsa mus rau qhov chaw ntawd.
CWDM kev nkag mus
1.Taw cov khoom siv fiber ntau CWDM (Coarse qhov chaw faib multiplexing) Coarse wavelength division multiplexing system, uas yog siv qhov sib txawv ntawm cov khoom siv fiber ntau txuas rau wavelength sib txuas; qhov kev siv fais fab tuag, kev siv fais fab rau txhua txoj kev, nyob rau tag nrho cov kev sib txuas yog nyob rau hauv qhov teeb meem ntawm cov khoom siv fiber ntau heev, cov kev txwv no, A, D, E, kev sib kis ntawm Ib tus neeg muaj fiber ntau thiab plaub 10 / 100 MBPS (kuj yog 1000 MBPS) qhov teeb meem, Ib chav tsev - B ntawm tus kab thawj cable TV teeb liab kis tau tus mob ntawm Ib tus tib roj ntim 2 10/100 MBPS cov teeb tseg, tseg Ntau ntau cov khoom siv fiber ntau. 2.Cov khoom lag luam thiab kev sib tw ntawm CWDM yog ib qho raws li qhov ua daim ntawv thov rau kev hloov pauv ntawm kev hloov raws li kev sib kis, txhawb kev lag luam ntau yam.Thaum txhua lub wavelength, kev txhawb nqa kev lag luam nrog rau 10 m / 100 m / 1000 m Ethernet , 155 m / 622 m / 2.5 G ntawm SDH, 155 m / 622 m ATM ua lag luam, thiab cov Fibre Channel ua lag luam, thiab li ntawd.Cov tag nrho lub peev xwm los ua si ob peb Gbps cov ntaub ntawv teeb liab.Ua raws li tus neeg siv kev siv bandwidth kuj qee lub sij hawm.This scenario SIV yog 10/100 MBPS kev lag luam nrog cable TV teeb liab rau kev siv kab sib txuas.
3. Ua kom zoo tshaj plaws, los pab txhawb nqa kev lag luam tshiab
CWDM system dua li tus nqi ntawm DWDM Multiplexer tseem tsawg, vim lub zog ntawm CWDM yog me me, me me ntim, yooj yim siv, yog li txhawb cov chaw, cov neeg ua haujlwm kev cob qhia thiab cov nqi txij nkawm tsis yig. ntaus qhib sai, yooj yim, yooj yooj yim network hloov dua siab tshiab, lig thiab nce ntawm teeb liab ncaj qha, los yog hloov ntau dua ntawm cov khoom, tsis tas hloov lub fiber ntau, hloov kho dua tshiab network, txo cov nqi kho nqi zog network scenario ADE, yog hloov mus rau 1000 MBPS cov ntaub ntawv tseg, lub peev xwm ntawm lub network ncaj qha mus upgrade rau 4 GBPS.
CWDM nyob rau hauv kev siv cov khoom siv hauv kev lag luam hauv kev siv cov lag luam
Nrog rau kev txhim kho tus neeg txoj sia nyob niaj hnub, niaj hnub no ib qho yooj yim nkag mus tsis tau cov neeg xav tau kev pab rau lub network tam sim no, CWDM qhov kev txhawb pab rau cov yam ntxwv ntawm kev ua lag luam ntau thiab ntau tau cov tib neeg saib xyuas, tuaj yeem muab E, FE, GE, STM 1 / 4/16 SDH thiab ATM cov phiajcim, CATV video interface thiab lwm cov lag luam xws li nkag mus rau CWDM cov kev daws teeb meem, kom tau raws li cov neeg xav tau tam sim no
