Kev piav qhia ntawm cov duab kos
Daim Duab 1 yog daim duab qhia txog txoj kev rau onu los hloov kho rau 10g/10g symmetry thiab 10g/1g asymmetry hauv ib qho piv txwv ntawm kev tsim kho tshiab no.
Cov kev qhia ntxaws
Qhov kev tsim kho tshiab no yuav raug piav qhia ntxiv hauv qab no nrog rau cov duab kos thiab cov qauv siv uas nrog los.
Lub onu hauv qhov kev siv ntawm qhov kev tsim kho tshiab no hloov kho rau 10g/10g symmetry thiab 10g/1g asymmetry, thiab siv rau hauv 10gepon scenario.
Raws li qhov no, raws li tau pom hauv Daim Duab 1, lub onu hauv qhov kev siv ntawm qhov kev tsim kho tshiab no hloov kho rau 10g/10g symmetry thiab 10g/1g asymmetry, suav nrog cov kauj ruam hauv qab no:
s1: Thaum lub onu pib, tau txais hom optical module ntawm onu. Yog tias lub optical module yog ib qho symmetrical optical module, nws txhais tau tias tam sim no onu muaj peev xwm ua haujlwm hauv ob qho tib si symmetrical hom thiab asymmetrical hom. Lub sijhawm no, mus rau s2. Yog tias lub optical module yog Lub asymmetric optical module txhais tau tias tam sim no onu tsuas muaj peev xwm ua haujlwm hauv hom asymmetric. Lub sijhawm no, lub onu tsuas yog hloov kho rau 10g / 10g symmetric hom, yog li nws xaus ncaj qha los txo cov nqi khiav lag luam thiab txhim kho kev ua haujlwm zoo.
s2: Thaum lub onu hloov ntawm lub xeev tsis muaj teeb mus rau lub xeev teeb, rov qab tau hom optical module ntawm onu. Yog tias lub optical module yog symmetrical optical module, mus rau s3 (qhov laj thawj yog tib yam li s1). Yog tias lub optical module yog asymmetrical optical module, Ces xaus ncaj qha (qhov laj thawj yog tib yam li s1).
Lub hauv paus ntsiab lus ntawm s2 yog: qhov laj thawj vim li cas lub onu hloov ntawm lub xeev tsis muaj teeb mus rau lub xeev teeb yog: lub optical module hauv onu raug hloov, yog li hom optical module yuav tsum tau txais dua kom ntseeg tau tias lub peev xwm ntawm onu kom paub tseeb. Tsis tas li ntawd, vim tias muaj qhov xwm txheej uas lub onu tau qhib thaum nws txuas nrog lub fiber ntau optical, lub onu yeej ib txwm tau txais lub teeb downlink xa los ntawm olt, thiab tej zaum yuav tsis tuaj yeem ntes tau qhov xwm txheej uas hloov ntawm lub xeev tsis muaj teeb mus rau lub xeev teeb. Yog li ntawd, txhawm rau kom ntseeg tau tias s2 tuaj yeem saib xyuas tias lub onu hloov ntawm lub xeev tsis muaj teeb mus rau lub xeev teeb. Nws yog qhov tsim nyog los tua lub luag haujlwm txais lub teeb ntawm lub optical module thaum lub sijhawm pib ntawm onu hauv s1, thiab tom qab ntawd tig rau lub luag haujlwm txais lub teeb ntawm lub optical module tom qab lub onu pib ua tiav. Tsim ib qho xwm txheej uas onu hloov ntawm lub xeev tsaus ntuj mus rau lub xeev teeb.
Cov txheej txheem ntawm kev tau txais hom ntawm lub teeb pom kev zoo onu hauv s2 yog: nyeem rov qab cov npe ntawm lub teeb pom kev zoo los ntawm i2c (ib qho yooj yim, ob txoj kev ob-xaim synchronous serial bus tsim los ntawm Philips lub tuam txhab) kom tau txais cov ntaub ntawv hom ntawm lub teeb pom kev zoo (tus cwj pwm tsim khoom thiab tus qauv cim). Tau txais hom teeb pom kev zoo sib xws raws li cov ntaub ntawv hom. Cov txheej txheem tshwj xeeb yog: teeb tsa lub teeb pom kev zoo database hauv zos. Lub teeb pom kev zoo module database suav nrog cov ntaub ntawv hom ntawm lub teeb pom kev zoo module thiab hom sib xws. Hom sib xws yog siv ua hom ntawm lub teeb pom kev zoo.
s3: Txheeb xyuas hom kev ua haujlwm tam sim no ntawm onu. Yog tias hom kev ua haujlwm ntawm onu yog hom symmetric, nws yog qhov tsim nyog los txiav txim siab seb onu puas yuav tsum hloov mus rau hom asymmetric raws li OLT, uas yog, mus rau s4; yog tias hom kev ua haujlwm ntawm onu yog hom asymmetric, ces Yuav tsum txiav txim siab seb onu puas yuav hloov mus rau hom symmetric raws li olt, piv txwv li mus rau s5.
s4: Txheeb xyuas seb tus naj npawb ntawm lub sijhawm uas olt xa cov ntaub ntawv qhov rai hauv hom asymmetric yog siab dua qhov txwv tsis pub tshaj (ntau qhov kev txiav txim siab yog vim kev txiav txim siab ntawm kev ruaj khov, 5 zaug hauv qhov kev siv no), thiab yog tias yog, nws ua pov thawj tias olt tsuas muaj uplink 1g. Lub peev xwm, uas yog, OLT nyob rau hauv hom asymmetric, lub sijhawm no, hloov hom kev ua haujlwm ntawm ONU los ntawm hom symmetric mus rau hom asymmetric, thiab xaus; txwv tsis pub, nws ua pov thawj tias OLT tsuas muaj peev xwm ntawm uplink 10g (uas yog, ONU tau muab cov ntaub ntawv qhov rai ntawm hom symmetric), Uas yog hais tias, olt txhawb hom symmetric. Lub sijhawm no, hom kev ua haujlwm ntawm onu yog tswj hwm, thiab qhov kawg yog dhau lawm.
s5: Txheeb xyuas seb tus naj npawb ntawm cov ntaub ntawv qhov rai xa los ntawm olt mus rau hom symmetric puas tau mus txog qhov txwv tshwj xeeb (5 zaug hauv qhov piv txwv no). Yog tias yog, nws ua pov thawj tias olt muaj peev xwm uplinking 10g, thiab hloov ntawm hom asymmetric mus rau hom symmetric. Lub sijhawm no, hloov hom ua haujlwm ntawm onu los ntawm hom asymmetric mus rau hom symmetric, thiab xaus; txwv tsis pub, nws ua pov thawj tias OLT tsuas muaj peev xwm uplinking 1G, uas yog, OLT nyob rau hauv hom asymmetric, thiab lub sijhawm no, khaws hom ua haujlwm ntawm onu, thiab xaus.
Cov ntaub ntawv qhov rai ntawm hom asymmetric hauv s4 thiab cov ntaub ntawv qhov rai ntawm hom symmetric hauv s5 tau txais hauv mpcpgate thav duab uas OLT muab. Cov ntaub ntawv qhov rai ntawm hom asymmetric yog cov ntaub ntawv qhov rai uplink 1g, thiab cov ntaub ntawv qhov rai ntawm hom symmetric yog cov ntaub ntawv qhov rai uplink 10g.
Xa mus rau s1 txog s2, nws tuaj yeem pom tias qhov kev siv ntawm qhov kev tsim kho tshiab no tau txais hom onu ua ntej, thiab xa mus rau s3 txog s5, nws tuaj yeem pom tias qhov kev siv ntawm qhov kev tsim kho tshiab no tuaj yeem ntes tau hom kev ua haujlwm ntawm OLT, thiab hloov kho kom kho hom kev ua haujlwm ntawm ONU raws li hom kev ua haujlwm ntawm OLT, yog li kom paub txog kev hloov kho zoo meej ntawm OLT thiab ONU, thiab qhov tsis sib xws ntawm hom kawg hauv zos thiab hom kawg chaw taws teeb hauv cov kos duab ua ntej yuav tsis tshwm sim.
Lub onu hauv qhov kev siv ntawm qhov kev tsim kho tshiab no hloov kho rau 10g/10g symmetrical thiab 10g/1g asymmetrical systems, thiab nws yog tus cwj pwm hauv qhov ntawd: lub kaw lus suav nrog lub onu detection module, lub symmetrical mode switching module, thiab lub asymmetrical mode switching module uas teeb tsa rau ntawm onu.
Lub ONU nrhiav module siv los: tua lub teeb txais kev ua haujlwm ntawm lub optical module thaum lub sijhawm pib ntawm ONU, thiab tau txais hom optical module ntawm ONU. Yog tias lub optical module yog asymmetric optical module, tsum tsis txhob ua haujlwm; yog tias lub optical module yog symmetrical optical module, thaum ONU hloov ntawm lub xeev tsis-lub teeb mus rau lub xeev lub teeb, hom optical module ntawm ONU raug rov qab tau:
Yog tias lub optical module yog ib lub optical module symmetrical, nrhiav hom optical module ntawm onu. Thaum lub optical module yog ib lub optical module symmetrical, txiav txim siab seb hom ua haujlwm tam sim no ntawm onu. Yog tias hom ua haujlwm ntawm onu yog hom symmetrical, xa lub symmetrical mode switch mus rau lub symmetrical mode switching module Signal; yog tias hom ua haujlwm ntawm onu yog hom asymmetrical, xa lub asymmetric mode switching signal mus rau lub asymmetric mode switching module, thiab tig lub teeb pom kev ntawm lub optical module tom qab onu pib ua haujlwm;
Yog tias lub optical module yog ib qho asymmetric optical module, tsis txhob ua haujlwm.
Lub module hloov hom symmetric siv rau: tom qab tau txais lub teeb liab hloov hom symmetric, txiav txim seb tus lej ntawm cov ntaub ntawv qhov rai uas olt muab hauv hom asymmetric mus txog qhov txwv tsis pub dhau, thiab yog tias muaj, hloov hom kev ua haujlwm ntawm onu los ntawm hom symmetric mus rau hom asymmetric; Txwv tsis pub khaws hom kev ua haujlwm ntawm onu;
Lub module hloov hom asymmetric siv rau: tom qab tau txais lub teeb liab hloov hom asymmetric, txiav txim seb tus lej ntawm cov ntaub ntawv qhov rai xa los ntawm olt mus rau hom symmetric puas siab dua qhov txwv tsis pub tshaj, thiab yog tias muaj, hloov hom kev ua haujlwm ntawm onu los ntawm hom asymmetric mus rau hom symmetric; Txwv tsis pub khaws hom kev ua haujlwm onu.
Cov ntaub ntawv qhov rai ntawm hom asymmetric hauv lub symmetric mode switching module thiab cov ntaub ntawv qhov rai ntawm hom symmetric hauv lub asymmetric mode switching module tau txais hauv mpcpgate thav duab xa los ntawm OLT; cov ntaub ntawv qhov rai ntawm hom asymmetric yog cov ntaub ntawv qhov rai uplink 1g, Cov ntaub ntawv qhov rai ntawm hom symmetric hauv lub asymmetric mode switching module yog cov ntaub ntawv qhov rai uplink 10g.
Yuav tsum nco ntsoov tias thaum lub kaw lus uas muab los ntawm qhov kev tsim kho tshiab no ua kev sib txuas lus ntawm cov modules, kev faib cov modules ua haujlwm saum toj no yog siv ua piv txwv rau kev piav qhia. Hauv kev siv ua haujlwm, kev faib ua haujlwm saum toj no tuaj yeem ua tiav los ntawm cov modules ua haujlwm sib txawv raws li qhov xav tau. Ntawd yog, cov qauv sab hauv ntawm lub kaw lus raug faib ua cov modules ua haujlwm sib txawv kom ua tiav tag nrho lossis ib feem ntawm cov haujlwm piav qhia saum toj no.
Ntxiv mus, qhov kev tsim kho tshiab no tsis txwv rau cov qauv siv saum toj no. Rau cov neeg uas muaj kev txawj ntse hauv kev kos duab, yam tsis tawm ntawm lub hauv paus ntsiab lus ntawm qhov kev tsim kho tshiab no, qee qhov kev txhim kho thiab kev hloov kho kuj tuaj yeem ua tau, thiab cov kev txhim kho thiab kev hloov kho no kuj suav tias yog qhov kev tsim kho tshiab no. nyob rau hauv qhov ntau thiab tsawg ntawm kev tiv thaiv. Cov ntsiab lus tsis tau piav qhia meej hauv cov lus qhia no yog cov txuj ci ua ntej uas cov neeg txawj ntse hauv kev kos duab paub.
Lub sijhawm tshaj tawm: Lub Rau Hli-13-2023