1. Yintoni i-XGS-PON?
ZombiniXG-PONkunye ne-XGS-PON zeze-GPONuthotho.Ukusuka kwimephu yendlela yobugcisa, i-XGS-PON yindaleko yetekhnoloji ye-XG-PON.
Bobabini i-XG-PON kunye ne-XGS-PON yi-10G ye-PON, umahluko omkhulu kukuba: I-XG-PON i-PON e-asymmetric, i-uplink/downlink rate ye-PON port yi-2.5G/10G;I-XGS-PON yi-PON ye-symmetric, i-uplink / downlink rate ye-port ye-PON Ireyithi yi-10G / 10G.
Obona buchwepheshe be-PON busetyenziswayo ngoku yi-GPON kunye ne-XG-PON, zombini zi-asymmetric PON.Ekubeni idatha yomsebenzisi enyukayo / ezantsi i-asymmetrical, ithatha isixeko esithile sokuqala njengomzekelo, i-avareji ye-traffic enyukayo ye-OLT yi-22% kuphela ye-traffic esezantsi.Ke ngoko, iimpawu zobugcisa ze-PON ye-asymmetric zihambelana ngokusisiseko neemfuno zabasebenzisi.umdlalo.Okubaluleke ngakumbi, izinga lokunyuka kwe-PON ye-asymmetric liphantsi, iindleko zokuthumela amacandelo afana ne-lasers kwi-ONU iphantsi, kwaye ixabiso lezixhobo liphantsi ngokuhambelanayo.
Nangona kunjalo, iimfuno zabasebenzisi ziyahluka.Ngokunyuka kosasazo oluphilayo kunye neenkonzo zokucupha ividiyo, kukho iimeko ezininzi nangakumbi apho abasebenzisi banikela ingqalelo ngakumbi kwi-uplink bandwidth.Imigca ezinikeleyo engaphakathi kufuneka ibonelele nge-symmetrical uplink/downlink circuits.La mashishini akhuthaza imfuno ye-XGS-PON.
2. Ukuhlalisana kwe-XGS-PON, i-XG-PON kunye ne-GPON
I-XGS-PON yi-teknoloji ye-GPON kunye ne-XG-PON, kwaye ixhasa ukufikelela okuxubileyo kweentlobo ezintathu ze-ONU: i-GPON, i-XG-PON kunye ne-XGS-PON.
2.1 Ukuhlalisana kwe-XGS-PON kunye ne-XG-PON
Njenge-XG-PON, i-downlink ye-XGS-PON ithatha indlela yokusasaza, kwaye i-uplink ithatha indlela ye-TDMA.
Ukusukela ukuba i-wavelength esezantsi kunye nesantya esisezantsi se-XGS-PON kunye ne-XG-PON ziyafana, umlambo osezantsi we-XGS-PON awuhluli phakathi kwe-XGS-PON ONU kunye ne-XG-PON ONU, kwaye i-optical splitter isasaza umqondiso wokukhanya osezantsi ikhonkco elifanayo le-ODN Kwi-XG (S)-PON nganye (i-XG-PON kunye ne-XGS-PON) i-ONU, i-ONU nganye ikhetha ukufumana umqondiso wayo kwaye ilahle ezinye iimpawu.
I-uplink ye-XGS-PON yenza ukuhanjiswa kwedatha ngokweendawo zokubeka ixesha, kwaye i-ONU ithumela idatha kwixesha elivunyelwe yi-OLT.I-OLT inika iindawo zokubeka ngokuguqukayo ngokweemfuno zendlela yee-ONU ezahlukeneyo kunye nodidi lwe-ONU (ngaba yi-XG-PON okanye i-XGS-PON?).Kwisithuba sexesha esabelwe i-XG-PON ONU, izinga lokudluliselwa kwedatha yi-2.5Gbps;kwixesha elibekwe kwi-XGS-PON ONU, izinga lokudluliselwa kwedatha yi-10Gbps.
Ingabonwa ukuba i-XGS-PON ixhasa ngokwemvelo ukufikelela okuxubileyo kunye neentlobo ezimbini ze-ONU, i-XG-PON kunye ne-XGS-PON.
2.2 Ukuhlalisana kwe-XGS-PON kunyeGPON
Ekubeni i-uplink/downlink wavelength ihluke kwi-GPON, i-XGS-PON isebenzisa isisombululo se-Combo ukwabelana nge-ODN ne-GPON.Ngomgaqo wesisombululo se-Combo, bhekisa kwinqaku elithi "Ingxoxo ngeSicombululo sokuphucula ukusetyenziswa kwe-XG-PON yoMthombo weBhodi yabaSebenzi be-Combo".
Imodyuli ye-Combo optical ye-XGS-PON idibanisa i-GPON imodyuli ye-optical, i-XGS-PON imodyuli ye-optical kunye ne-WDM multiplexer.
Kwindlela ekhuphukayo, emva kokuba isignali ye-optical ingena kwi-port ye-XGS-PON Combo, i-WDM ihlunga isignali ye-GPON kunye ne-XGS-PON yesignali ngokwe-wavelength, kwaye emva koko ithumela isignali kumajelo ahlukeneyo.
Kwisalathiso se-downlink, iimpawu ezivela kwisiteshi se-GPON kunye nesiteshi se-XGS-PON ziphindaphindwe nge-WDM, kwaye isignali edibeneyo iyancipha kwi-ONU nge-ODN.Ekubeni i-wavelengths yahlukile, iindidi ezahlukeneyo ze-ONU zikhetha ubude obufunekayo ukufumana iimpawu ngokusebenzisa izihlungi zangaphakathi.
Ekubeni i-XGS-PON isekela ngokwemvelo ukuhlalisana kunye ne-XG-PON, isisombululo se-Combo se-XGS-PON sixhasa ukufikelela okuxubileyo kwe-GPON, i-XG-PON kunye ne-XGS-PON ezintathu iintlobo ze-ONU.Imodyuli yeCombo yeCombo ye-XGS-PON ikwabizwa ngokuba yimodyuli ye-Combo ye-Combo ye-Combo (i-modyuli ye-Combo ye-Combo ye-Combo ebizwa ngokuba yi-modyuli ye-Combo ye-optical mode ezimbini kuba ixhasa ukufikelela okuxubileyo kwe-GPON kunye ne-XG-PON iindidi ezimbini ze-ONU).
3. Isimo seMarike
Ukuchatshazelwa yindleko yezixhobo kunye nokuvuthwa kwezixhobo, ixabiso langoku lezixhobo ze-XGS-PON liphezulu kakhulu kune-XG-PON.Phakathi kwabo, ixabiso leyunithi ye-OLT (kubandakanywa nebhodi yomsebenzisi we-Combo) malunga ne-20% ephezulu, kwaye ixabiso leyunithi ye-ONU ingaphezulu kwe-50% ephezulu.
Nangona imigca ezinikeleyo engaphakathi kufuneka ibonelele nge-uplink/downlink symmetrical circuits, eyona ndlela yokugcwala i-traffic yeyona migca mininzi izinikeleyo isalawulwa yindlela yokuziphatha elandelayo.Nangona kukho iimeko ezininzi nangakumbi apho abasebenzisi bahlawula ingqalelo ngakumbi kwi-bandwidth ye-uplink, kukho phantse akukho meko yeenkonzo ezingenakufikeleleka nge-XG-PON kodwa kufuneka zifikeleleke nge-XGS-PON.
Ixesha lokuposa: Apr-12-2023