Cov#DWDMnetwork designer yuav tsum tau scale nws tsim raws li nram no lub ntsiab yam.
1. Attenuation thiab fais fab nyiaj txiag (Tshaj tawm thiab tawm tswv yim ntawm Transponders, Ncua tseg qhov tsis muaj cov khoom siv, Fiber attenuation, Amplifier input range/gain/output)
2. OSNR laij lej (Calculation Tool and Transponders Receiving Tolerance)
3. Chromatic dispersion (Dispersion them nyiaj fiber ntau / module)
4. PMD: Polarization Hom Dispersion (Siv cov nyiaj pab PMD)
5. Nonlinearity (Kev xaiv ntawm hom transponder, qis qis zog tawm tswv yim rau fiber ntau, nthuav dav channel sib nrug, Siv lub chaw nres tsheb regenerator)
Tom qab ntawd nco ntsoov cov ntaub ntawv hauv qab no xav tau rau DWDM tsim:
1 System Capacity
Ib qho ntawm cov ntaub ntawv yuav tsum tau ua rau lub network tsim yog: thawj zaug thiab qhov kawg yuav tsum muaj peev xwm, nrog rau lub peev xwm siab tshaj plaws uas tuaj yeem ua tiav yam tsis muaj kev cuam tshuam rau kev thauj mus los hauv kev nthuav dav yav tom ntej. Tus neeg siv khoom feem ntau muab cov ntaub ntawv qhia meej txog nws cov kev xav tau rau txhua qhov ntawm txhua qhov kev pab cuam.
2 Kev pabcuam yuav tsum tau ua
Qhov kev xav tau no feem ntau yog nyob ntawm lub peev xwm ntawm lub network, (xws li: Seb puas yog 10Gbit / s network lossis 2.5Gbits ib qho). Cov tsheb matrix yuav ua rau nws yooj yim dua los taug qab cov kev sib txawv ntawm ntau hom thiab muaj peev xwm ntawm cov nodes ntawm lub network. Txawm hais tias cov kev pabcuam no yuav txawv ntawm qhov txuas mus rau lwm qhov, cov kev cai yuav suav nrog cov ntaub ntawv hom uas yuav siv tau rau yav tom ntej txuas ntxiv ntawm lub network.
3 Fiber Hom
Cov ntsiab lus no feem ntau tau teev tseg los ntawm cov neeg siv khoom lub hom phiaj, raws li nws cov kev tsim kho thiab cov kev xav tau. (piv txwv li: G.652, G.655, G.653…) Hauv peb lub network projected, tag nrho cov fiber ntau yog G.655, tab sis peb pom ib qho tseem ceeb spanof G.654 uas tau siv rau ib qho me me submarine ib feem ntawm lub network. .
4 Fiber ntev rau txhua qhov span thiab attenuation txoj cai
Ib yam li cov ntsiab lus dhau los, peb yuav tsum kawm kom paub meej cov neeg siv khoom yuav tsum paub zoo txog cov chaw ntawm node, thiab yog li hais txog qhov ntev ntawm fiber ntau thiab cov teeb liab attenuation nyob rau hauv optical network. Qhov tseeb, qhov kho qhov muag Attenuators yuav raug teeb tsa raws li ntau qhov kev ntsuas uas feem ntau cuam tshuam nrog qhov ntev, fiber ntau attenuation, nrog rau hom fiber ntau nws tus kheej.
5 Qhov chaw hom (OTM,#OADM, OLA)
Kev txiav txim siab txog hom ntawm qhov chaw yog txuas nrog qhov tseeb ntawm qhov chaw thiab qhov tseem ceeb nrog rau kev siv lub network, cov neeg siv ntawm lub xaib no, thiab lwm yam. OTM cov chaw feem ntau sawv cev rau cov chaw tseem ceeb uas yuav cuam tshuam nrog ntau lub wavelengths; koj tuaj yeem xa mus rau daim duab kos duab kom paub qhov chaw ua haujlwm raws li lub vev xaib hom.
