Qhov zoo ntawm DWDM
DWDM khiav ntawm lub network ntawm cov neeg ua haujlwm loj hauv tsev? Yuav luag txhua qhov qhib DWDM tshuab tau siv dav, tab sis qhov tseeb, kev sib xyaw ua ke wavelength txoj kev muaj nws tus kheej ntau yam zoo:
1. Lub mixer thiab demultiplexer ntawm kev sib xyaw DWDM system yog siv cais ntawm qhov kawg xa tawm thiab qhov kawg tau txais, uas yog, tsuas muaj ib qho multiplexer ntawm qhov kawg xa tawm, thiab tsuas yog ib qho khoom demultiplexing ntawm qhov kawg tau txais. Cov khoom siv hloov pauv OTU (qhov no raug nqi ntau dua)? Yog li ntawd, kev nqis peev ntawm DWDM cov cuab yeej siv tau tuaj yeem txuag tau ntau dua 60 feem pua.
2. Cov kev sib xyaw ua ke DWDM tsuas yog siv cov khoom siv passive (xws li multiplexers lossis demultiplexers) ntawm qhov kawg tau txais thiab qhov kawg xa tawm. Cov tswv lag luam hauv xov tooj tuaj yeem txiav txim ncaj qha los ntawm cov tuam txhab tsim khoom kom txo cov khoom sib txuas thiab cov nqi qis, yog li txuag cov khoom siv. .
3. Lub network tswj kev tswj hwm ntawm qhov qhib DWDM yog lub luag haujlwm rau kev saib xyuas OTM (tsuas yog OTU), OADM, OXC, thiab EDFA, thiab nws cov cuab yeej siv peev nyiaj txog li 20 feem pua ntawm tag nrho cov peev ntawm DWDM system; Thaum lub DWDM kev sib koom ua ke tsis xav tau cov cuab yeej siv OTM, nws Lub network tswj tsuas yog lub luag haujlwm rau kev saib xyuas ntawm OADM, OXC, thiab EDFA, thiab ntau lub tuam txhab tuaj yeem tsim kev sib tw, thiab cov nqi tswj xyuas network tuaj yeem txo los ntawm ib nrab piv. nrog qhib DWDM network tswj.
4. Txij li cov khoom siv multiplexing / demultiplexing ntawm kev sib xyaw DWDM system yog ib qho khoom siv passive, nws yog qhov yooj yim los muab ntau yam kev pabcuam thiab ntau tus nqi sib cuam tshuam, tsuav yog lub wavelength ntawm optical transceiver ntawm cov khoom lag luam kawg ua tau raws li qhov yuav tsum tau ua. ntawm G. 692 tus qauv, uas yog, nws tuaj yeem nkag tau los ntawm txhua qhov kev pabcuam xws li PDH, SDH, POS (IP), ATM, thiab lwm yam, thiab txhawb PDH, SDH ntawm ntau tus nqi xws li 8M, 10M, 34M, 100M, 155M, 622M, 1G, 2.5G, 10G, ATM thiab IP Ethernet? Zam kev qhib DWDM vim yog OTU, tab sis tsuas yog siv SDH, ATM lossis IP Ethernet cov cuab yeej uas nws qhov hluav taws xob optical wavelength (1310nm, 1550nm) thiab tus nqi sib kis tau txiav txim siab los ntawm kev yuav DWDM system? Nws tsuas yog tsis tuaj yeem siv lwm cov interfaces.
5. Yog tias cov khoom siv laser modules ntawm cov khoom siv kho qhov muag xws li SDH thiab IP routers yog uniformly tsim raws li tus pins nrog cov qauv geometric qhov ntev, cov interfaces yog standardized, uas yog ib qho yooj yim los tswj thiab ntsaws, thiab kev sib txuas yog txhim khu kev qha. Nyob rau hauv txoj kev no, cov neeg ua haujlwm saib xyuas tuaj yeem hloov pauv lub laser lub taub hau ntawm cov xim tshwj xeeb raws li qhov xav tau ntawm lub wavelength ntawm DWDM system, uas muab cov xwm txheej yooj yim rau kev ua txhaum ntawm lub taub hau laser, thiab zam qhov tsis zoo ntawm tag nrho pawg thawj coj saib. yuav tsum tau hloov los ntawm cov chaw tsim khoom yav dhau los. cov nqi kho mob siab.
6. Cov xim wavelength lub teeb tam sim no tsuas yog me ntsis kim dua li qhov zoo tib yam 1310nm thiab 1550nm wavelength teeb qhov chaw. Piv txwv li, 2.5G tus nqi xim wavelength lub teeb qhov chaw tam sim no ntau dua 3, 000 yuan kim dua, tab sis thaum nws txuas nrog DWDM system, nws tuaj yeem ua rau Tus Nqi Them Nqi ntawm lub kaw lus raug txo los ntawm ze li ntawm 10 lub sij hawm, thiab nrog rau qhov loj-scale daim ntawv thov ntawm cov xim wavelength lub teeb qhov chaw, nws tus nqi yuav nyob ze rau qhov zoo tib yam lub teeb qhov chaw.
7. Cov khoom siv DWDM sib xyaw ua ke yog qhov yooj yim hauv cov qauv thiab me me, tsuas yog ib feem tsib ntawm qhov chaw nyob los ntawm qhov qhib DWDM, txuag cov khoom siv hauv computer.
Txhawm rau ua kom tiav, kev sib koom ua ke DWDM yuav tsum tau siv dav hauv ntau cov kab ke DWDM, thiab maj mam hloov qhov tseem ceeb ntawm qhov qhib DWDM system. Xav tias muaj ntau cov khoom siv kho qhov muag kis tau tus mob nrog cov teeb pom kev zoo tam sim no siv hauv lub network, nws raug nquahu kom siv DWDM hybrid uas sib xyaw ua ke thiab sib xws nrog cov tshuab qhib, uas tau tiv thaiv thawj zaug peev.
