Xaiv lus
Lub tsev ua tiav cov cuab yeej siv fiber ntau fiber ntau dua qub {}}}}}}} {{2 .
Peb muab CWDM thev naus laus zis, uas yog qhov zoo rau cov neeg ua haujlwm me thiab nruab nrab
Dense wavelength-division multiplexing (DWDM) is an optical fiber multiplexing technology that increases the bandwidth of fiber networks. DWDM combines data signals from sources over a single pair of optical fibers and it maintains separation of the data streams. A separate light wavelength carries each signal.
Nce bandwidth
DWDM thev naus laus zis ua rau kev sib kis cov ntaub ntawv ntau yam, nthuav dav ntawm cov neeg tau txais kev pab, ua kom tau txais kev sib tw ntawm cov neeg tau txais kev pab, thiab cov yeeb yaj kiab nrawm nrawm, thiab cov yees duab du,.
Rau pob tshab
Vim tias DWDM yog nrog lub cev txheej txheem kev kos duab, nws muaj peev xwm pab txhawb ob qho tib si TDM thiab cov ntaub ntawv epernet, escon, thiab fiber ntau channel nrog cov txheej txheem lub cev .
Kev loj
DWDM tuaj yeem rub tawm cov kev nplua nuj ntawm cov chaw tsaus nti hauv ntau qhov chaw muaj peev xwm ua tau rau kev siv lub ntsiab lus thiab ntawm cov sonet uas twb muaj lawm.
Tus Nqi Muaj Zog
Los ntawm maximizing cov ntaub ntawv kis tau muaj peev xwm dhau ntawm DWDM, ISPS tuaj yeem zam cov txheej txheem roj ntsha roj uas tsis muaj kev cuam tshuam ntxiv rau cov khoom siv hluav taws xob uas twb muaj lawm thaum muaj kev hloov kho tshiab thaum ub.
Yooj yooj
Nrog DWDM, ISPS tuaj yeem yooj yim ntxiv lossis tshem tawm wavelengths kom haum rau kev hloov kho yav tom ntej tsis muaj kev nthuav dav infrastructure.
Kev Kis Mus Nqis Ntev
DWDM thev naus laus zis ua rau cov ntaub ntawv sib kis ntev dhau ntawm FTH network, tso cai rau cov neeg siv khoom tseem ceeb thiab tsis muaj kev cuam tshuam rau cov kev pabcuam zoo tshaj plaws.
DWDM tseem nce lub peev xwm ntawm cov khoom siv kho tshiab los ntawm ntau lub wavelengths (channel) ntawm ib qho kev sib tw ntawm cov ntaub ntawv concurrently .
DWDM yog qhov dav dav nyob rau hauv ntev log thiab metropolitan optical networks los pab cov chaw muab kev pab cuam sib kis tau kom muaj kev pheej hmoo mus rau cov cheeb tsam txuas ntxiv {}}
DWDM tau ua haujlwm hauv DCI txhawm rau txuas cov chaw ntsuas hluav taws xob ntau dua {}}} nws yooj yim sib txuas ntawm cov chaw nruab nrab ntawm thaj chaw {}}
Kev pab cuam hauv xov tooj siv rau DWDM hauv lawv lub pob zeb caj qaum ua haujlwm ntev, cov ntaub ntawv sib txawv thiab cov cheeb tsam sib txawv thiab cov cheeb tsam.
Raws
CWDM thiab DWDM channel raws li International Pinecommun cov qauv koom ua ke ntawm chardm ntawm 0 {} 8nm lossis 0 {}} 4nm. Qhov no txhais tau tias CWDM tuaj yeem txhawb nqa txog 18 raws thiab nrog DWDM nws yog qhov ua tau kom haum 40, 80 lossis txog 96 raws cov khub zoo li qub.
Ntau zaus
Cov chands rau ntawm CWDM yog nyob rau zaus ntawm 1271nm txog 1611nm, whereas uas feem ntau siv yog feem ntau ntawm cov khoom siv ntawm qhov ... 1565nm - 1530N5nm - 1530n5nm - 1530.
Lasers
Raws li cov kev siv hluav taws xob ntau dua, lawv xa cov hluav taws xob sib zog ntau dua li ntawm cov teeb meem uas muaj qhov sib nrug ntawm cov teeb meem no lub sij hawm . lub cav rau qhov no yog cov nqi ntau dua, tsis tau muaj tus nqi ntau dua, nrog cov nqi ntau dua, nrog rau cov nqi uas tau tsim los ntawm CWDM thiab DWDM yog ntau los ze dua {5 5}}
Ncav cuag
CWDM cov cim tsis tuaj yeem ua rau pom tseeb, tab sis cov paib tuaj yeem nqa tau ntawm txhua qhov kev ua haujlwm ntawm kev ua haujlwm ntawm 3000KM, tsim nyog rau kev ua haujlwm rau kev ua haujlwm ntev dua 3000km, tsim nyog rau kev tsim kho ntawm lub sijhawm ntev thiab hiav txwv cable Tshuab . Txawm li cas los xij, thiab thaum lub teeb liab tseem ceeb heev rau nws tau ua tau ntau zaus nws tseem tuaj yeem tawm tsam thaum nws tuaj txog Nyob rau lwm kawg . Muaj lwm txoj kev sib tw ntev ntev, yuav pib sib xyaw ua ke, nws yuav pib sib txawv, nws yuav pib sib txawv, nws yuav pib sib txawv "{{10}
Bandwidth
DWDM tuaj yeem nqa ntau bandwidth ib channel tshaj cwdm {{mumpgable transceivers, yog tias koj yuav tsum tau nqa cov kab ke ntau dua yog 100 li Xav txog .
Lam ua
Thaum kawg, yog tias koj xav txwv kev siv hluav taws xob hauv koj txoj kev siv tsheb khiav ceev, tab sis nrog kev xaiv cov kev kub siab, tab sis kev kub siab . hauv kev sib piv rau nquag multiplexing, passive multipeXing yog yooj yim los qhia ntxiv, yooj yim}} High {}} binex thiab tsis muaj opex.
DWDM tau nthuav dav dav dav hlau uas yuav pab kom haum rau cov tshuab hluav taws xob ntau dua 40} Nws tau yooj yim rau hauv C-band ntau tshaj li {}}
Dense wavelength-faib multipxing hauv khoos kas kho qhov muag tau zoo dua qub, cov cab kuj yuav pab tau tus nqi qis dua li kev txhim kho cov fiber ntau dua li kev txhim kho fiber ntau dua {{5
DWDM wavelength Raws tuaj yeem ua tiav los ntawm infrared laser kab teeb meem thiab tsis txhob cuam tshuam nrog txhua lwm yam vim muaj cov khoom muaj zog thib ob, txhua lub channel tuaj yeem siv cov ntaub ntawv sib txawv Tawm tswv yim thiab kis ntawm cov ntaub ntawv sib txawv.
Wavelengthing channel sib haum (wavelength xaiv)
● Channel nrug: Xyuas kom cov kab sib txuas ntawm Waverm los ntawm koj cov kev sib tw network {}}}}}}}}}}} kev sib tsoo .
● Wavelength Assignment: Ensure that the DWDM transceivers align with the specific wavelength channels in your DWDM system. DWDM typically operates in the C-band (1528-1561 nm) and L-band (1577-1603 nm). Check that the transceivers' wavelengths match the available Raws .
Kev Sib Kis Txog Kev Txiav Txim Siab
Kev ncua deb: Txiav txim qhov kev ncua deb uas koj xav tau los xa cov ntaub ntawv hauv koj cov kev xaiv ntev, thiab cov ultras-ntev kev hloov pauv ntawm .
● Cov kev ua kom rov muaj dua tshiab, xav txog qhov kev xav tau ntawm kev xaiv ntawm kev xaiv ntawm transceivers thiab tag nrho cov qauv network.
Network cov ntaub ntawv cov ntaub ntawv yuav tsum tau ua
● Cov ntaub ntawv tus nqi sib piv: txiav txim cov ntaub ntawv xav tau rau koj lub network {}}} dwdm transceivers, SFP +, QSFP 28.
● Cov ntawv pov thawj yav tom ntej: Xav txog yav tom ntej ruaj khov thiab xaiv kev hloov cov ntaub ntawv nyob rau yav tom ntej cov lus qhia thaum xav tau .
Lub hwj huam TX thiab txais cov kev ntsuas rhiab
● TX muaj zog: lub teeb-emitting ua rau pom muaj zog ntawm lub zog hloov kho kho qhov muag tau tawm los ntawm Transceal
● Txais kev paub txog qhov tau txais kev hloov kho qhov kev hloov kho kom pom kev zoo siab rau kev tuaj yeem lees paub txog kev tos txais, txawm tias tsis muaj kev tos txais cov phiajcim
Tshaj siab Fec Raws Cai
FEC yog qhov ua yuam kev kho cov txheej txheem uas muaj cov ntaub ntawv kis tau los ntawm kev sib kis cov ntaub ntawv hla kev, tshwj xeeb tshaj plaws los ntawm kev cuam tshuam nrog kev cuam tshuam nrog cov teeb meem ntev kev cia siab ntawm network cov ntaub ntawv kis {{3}
Dispersion ntawm txawv DWDM wavelengths
● Kev Discovery DWRANCE nyob rau hauv DWDM Modules tau hais txog qhov tsis tsim nyog rau hauv DWDM cov cim, yog qhov tseem ceeb rau kev khaws cia, yog li ua kom muaj kev ntseeg tau Cov ntaub ntawv kis tau, tshwj xeeb thoob plaws kev hloov kho valve .
● Kev tswj hwm kev tshem tawm: Ntsuas seb cov kev pab tswj hwm kev tsis lees paub, cov nyiaj rho tawm ntawm cov kev sib cais ntawm cov teeb liab zoo {}}
Txog tam sim no, FB-txuas tau txais dhau 65 patents rau kev tsim tawm, thiab ntau dua 90 qhov kev tsim kho hauv tebchaws ntau dua li ob peb zaug.
FB-txuas muaj cov pab pawg ua ke nrog cov kws tshaj lij kev tsim kho, CSP, thiab cov kev tswj hwm loj thiab cov kev daws teeb meem loj
Raws li ib qho ntawm cov thawj coj DWDM tuam ntxhab thiab cov muag khoom hauv Suav teb, peb sov siab tos txais cov khoom lag luam ntawm cov khoom lag luam ntawm cov nqe lus thiab cov piv txwv dawb.
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