1. Chii chinonzi XGS-PON?
Zvese zviri zviviriXG-PONuye XGS-PON ndezveGPONKubva pachirongwa chehunyanzvi, XGS-PON ndiyo shanduko yehunyanzvi yeXG-PON.
XG-PON neXGS-PON zvese zviri 10G PON, musiyano mukuru ndewekuti: XG-PON iPON isina kuenzana, mwero weuplink/downlink wePON port i2.5G/10G; XGS-PON iPON yakaenzana, mwero weuplink/downlink wePON port. Mwero wacho i10G/10G.
Matekinoroji makuru ePON ari kushandiswa parizvino iGPON neXG-PON, ese ari maviri asina kufanana PON. Sezvo data remushandisi rekumusoro/pasi risingaenzaniswi, tichitarisa rimwe guta rekutanga semuenzaniso, avhareji yekufambisa kweOLT kumusoro i22% chete yekufambisa kwepasi. Saka, hunhu hwehunyanzvi hwePON isina kufanana hunoenderana nezvinodiwa nevashandisi. Zvinonyanya kukosha, mwero wekuwedzera wePON isina kufanana wakaderera, mutengo wekutumira zvikamu zvakaita semalaser muONU wakaderera, uye mutengo wemidziyo wakadererawo saizvozvo.
Zvisinei, zvinodiwa nevashandisi zvakasiyana-siyana. Nekuwedzera kwemabasa ekuparadzira nhau mhenyu uye ekutarisa mavhidhiyo, kune zviitiko zvakawanda apo vashandisi vanoteerera zvakanyanya bandwidth ye uplink. Mitsetse yakatsaurirwa mukati inofanirwa kupa maseketi e uplink/downlink akafanana. Mabhizinesi aya anokurudzira kudiwa kweXGS-PON.
2. Kugara pamwe chete kweXGS-PON, XG-PON neGPON
XGS-PON ndiyo shanduko yetekinoroji yeGPON neXG-PON, uye inotsigira mukana wakasiyana wemhando nhatu dzeONU: GPON, XG-PON uye XGS-PON.
2.1 Kugara pamwe chete kweXGS-PON neXG-PON
Kufanana neXG-PON, downlink yeXGS-PON inoshandisa nzira yekuparadzira, uye uplink inoshandisa nzira yeTDMA.
Sezvo wavelength yekudzika kwemvura uye mwero wekudzika kweXGS-PON neXG-PON zvakafanana, kudzika kweXGS-PON hakusiyanisi pakati peXGS-PON ONU neXG-PON ONU, uye optical splitter inoparadzira downstream optical signal kune imwecheteyo ODN link. Kune yega yega XG(S)-PON (XG-PON neXGS-PON) ONU, yega yega ONU inosarudza kugamuchira signal yayo uye inorasa mamwe masignal.
Kubatana kweXGS-PON kunoita kuti data ritumirwe zvichienderana nenguva, uye ONU inotumira data munzvimbo dzinotenderwa neOLT. OLT inogovera nguva zvichienderana nezvinodiwa netraffic yeONU dzakasiyana uye rudzi rweONU (ndiyo XG-PON here kana XGS-PON?). Munguva yakatarwa kuXG-PON ONU, data rinokwanisa kutumirwa 2.5Gbps; munguva yakatarwa kuXGS-PON ONU, data rinokwanisa kutumirwa 10Gbps.
Zvinogona kuonekwa kuti XGS-PON inotsigira mukana wakasanganiswa wekupinda nemarudzi maviri eONU, XG-PON neXGS-PON.
2.2 Kugara pamwe chete kweXGS-PON neGPON
Sezvo wavelength yeuplink/downlink yakasiyana neyeGPON, XGS-PON inoshandisa mhinduro yeCombo kugovera ODN neGPON. Kuti uwane musimboti wemhinduro yeCombo, tarisa chinyorwa chinoti "Kukurukurirana pamusoro pemhinduro yekuvandudza kushandiswa kwezviwanikwa zveXG-PON kweBhodhi reVanonyoresa reCombo".
Iyo Combo optical module yeXGS-PON inobatanidza GPON optical module, XGS-PON optical module uye WDM multiplexer.
Munzira yekukwira, mushure mekunge chiratidzo che optical chapinda muXGS-PON Combo port, WDM inosefa chiratidzo cheGPON nechiratidzo cheXGS-PON zvichienderana newavelength, uye yozotumira chiratidzo kune nzira dzakasiyana.
Munzira yedownlink, masaini anobva kuGPON channel neXGS-PON channel anowedzerwa kuburikidza neWDM, uye masaini akasanganiswa anobviswa akabatana neONU kuburikidza neODN. Sezvo marefu ewavelength akasiyana, mhando dzakasiyana dzeONU dzinosarudza marefu ewavelength anodiwa kuti agamuchire masaini kuburikidza nemafirita emukati.
Sezvo XGS-PON ichitsigira kugara pamwe chete neXG-PON, mhinduro yeCombo yeXGS-PON inotsigira kupinda kwakasiyana kweGPON, XG-PON neXGS-PON mhando nhatu dzeONU. Iyo Combo optical module yeXGS-PON inonziwo three Mode Combo optical module (XG-PON's Combo optical module inonzi two-mode Combo optical module nekuti inotsigira kupinda kwakasiyana kweGPON neXG-PON mhando mbiri dzeONU).
3. Mamiriro eMusika
Zvichikanganiswa nemutengo wemidziyo uye kukura kwemidziyo, mutengo wemidziyo weXGS-PON wakakwira zvakanyanya kupfuura weXG-PON. Pakati pazvo, mutengo weyuniti yeOLT (kusanganisira Combo user board) wakakwira ne20%, uye mutengo weyuniti yeONU wakakwira ne50%.
Kunyangwe mitsetse yakatsaurirwa inobound ichifanira kupa ma "uplink/downlink symmetrical circuits", traffic chaiyo yemitsetse yakatsaurirwa inobound ichiri kudzorwa nemaitiro anotevera. Kunyangwe paine zviitiko zvakawanda apo vashandisi vanoteerera zvakanyanya bandwidth yeuplink, hapana kana chiitiko chemasevhisi asingakwanise kuwanikwa kuburikidza neXG-PON asi anofanira kuwanikwa kuburikidza neXGS-PON.
Nguva yekutumira: Kubvumbi-12-2023