1. Iyini i-XGS-PON?
KokubiliXg-ponfuthi i-xgs-pon ingeyakhoIzithombeUchungechunge. Ukusuka kwi-Technical RoadMap, i-XGS-PON ukuvela kwezobuchwepheshe kwe-XG-PON.
Zombili i-xg-pon ne-xgs-pon zingama-10g pon, umehluko omkhulu yile: xg-pon yi-asymmetric pon, isilinganiso se-oplink / phansi se-pon port yi-2.5g / 10G; I-XGS-PON iyi-symmetric pon, isilinganiso se-uplink / phansi se-POP Port Izinga lingu-10g / 10g.
Ubuchwepheshe obukhulu be-PON Technologies njengamanje basebenzise i-GPON kanye ne-xg-pon, bobabili okuyi-asymmetric pon. Njengoba idatha ye-Upstream / DownLink ebanzi ngokuvamile i-asymmetrical, ithatha idolobha elithile le-tier yokuqala njengesibonelo, isilinganiso esisezingeni eliphakeme se-OLT singama-22% kuphela amathrafikhi aphansi. Ngakho-ke, izici zobuchwepheshe ze-Asymmetric Pon zihlobene ngokuyisisekelo ngezidingo zabasebenzisi. Qondanisa. Okubaluleke kakhulu, isilinganiso se-asynkmetric pon siphansi, izindleko zokuthumela izingxenye ezifana nama-lasers e-Onu ziphansi, futhi intengo yemishini iphansi.
Kodwa-ke, izidingo zomsebenzisi zihlukahlukene. Ngokukhuphuka kwezinsizakalo zokusakaza bukhoma kanye nevidiyo, kunezimo eziningi neziningi lapho abasebenzisi benaka kakhulu ku-upkwink bandwidth. Imigqa ye-inbound ezinikezele idinga ukuhlinzeka ngemibuthano ye-symmetrical uplink / downlink. Lawa mabhizinisi akhuthaza isidingo se-XGS-PON.
2. Ukuhlalisana kwe-XGS-PON, XG-PON NO-GON
I-XGS-PON ukuvela kwezobuchwepheshe kwe-GONGN kanye ne-XG-PON, futhi kusekela ukufinyelela okuxubile kwezinhlobo ezintathu ze-Onus: GON, XG-PON ne-XGS-PON.
2.1 Ukuhlaziya kwe-XGS-PON ne-XG-PON
Njenge-XG-PON, i-DownLink ye-XGS-PON amukela indlela yokusakaza, futhi i-Uplink yamukela indlela ye-TDMA.
Kusukela i-wavestream waveleng kanye nesilinganiso esiphansi se-xgs-pon kanye ne-xg-pon bayafana, ukwehla kwe-xgs-pon akuhlukanisi phakathi kwe-xgs-pon, futhi i-xg-pon kanye ne-xg-pon ne-xgs-pon) U-Onu, i-ONU ngayinye ikhetha ukuthola isiginali yayo futhi ilahle ezinye izibonakaliso.
I-Uplink ye-XGS-PON yenza ukuhanjiswa kwedatha ngokuya nge-Time Slots, futhi i-Onu ithumela idatha ngesikhathi Slots esivunyelwe ngu-OLT. I-OLT ihlanganisa isikhathi esishukumisayo ngokwesikhathi ngokuya ngezidingo zethrafikhi ze-ONSUS ehlukile nohlobo lwe-Onu (yi-XG-PON noma i-XGS-PON?). Ngesikhathi slot sabiwe ku-XG-PON ONU, izinga lokudlulisa idatha lingama-2.5Gbps; Ngesikhathi slot enikezwe i-XGS-PON ONU, isilinganiso sokudlulisa idatha siyi-10GBPS.
Kungabonakala ukuthi ngokwemvelo i-XGS-PON kusekela ukufinyelela okuxubile nezinhlobo ezimbili ze-onus, i-XG-PON ne-XGS-PON.
2.2 ukuhlangana kwe-xgs-pon futhiIzithombe
Njengoba i-wavenk / downlink wavenwength ihlukile kulokho kwe-GPON, i-XGS-PON isebenzisa isisombululo se-combo ukwaba u-Odn nge-GONG. Ngomgomo wesisombululo se-combo, bhekisa esihlokweni esithi "Ingxoxo kwisixazululo sokwenza ngcono izinsizakusebenza ze-XG-PON Supplization yeBhodi Yababhalisile yeCombo".
Imodyuli ye-combo optical of xgs-pon ihlanganisa imodyuli ye-GPons, i-XGS-PON Optical module kanye ne-WDM Multiplexer.
Esiqondisweni esisezingeni eliphezulu, ngemuva kokuthi isiginali ye-Optical ingena echwebeni le-XGS-PON Combo Port, izihlungi ze-WDM i-Gons isinali kanye ne-xgs-pon isinali ngokuya ngeziteshi ezihlukile.
Eqinisweni le-DownLink, amasiginali avela esiteshini sase-GPon kanye nesiteshi se-XGS-PON angena kwi-WDM, futhi isiginali exubile idluliselwe phansi ku-ONN. Njengoba ama-wavelength ahlukile, izinhlobo ezahlukene ze-onus zikhetha ama-wavelength adingekayo ukuthola amasiginali ngokusebenzisa izihlungi zangaphakathi.
Njengoba i-XGS-PON ngokwemvelo isekela ukuhlangana ne-xg-pon, isixazululo se-combo se-xgs-pon isekela ukufinyelela okuxubile kwe-GONGON, i-XG-PON kanye ne-XGS-PON izinhlobo ezintathu ze-Onus. Imodyuli ye-combo ye-XGS-PON ibizwa nangokuthi imodi emithathu ye-combo ye-combo stickical module (module ye-xg-pon's combo optical module ngoba isekela ukufinyelela okuxubekile kwe-GONNs kanye ne-xg-pon izinhlobo ezimbili ze-onus).
3. Isimo semakethe
Ukuthinteka kwezindleko zemishini nokuvuthwa kwemishini, intengo yamanje ye-XGS-PON iphakeme kakhulu kunaleyo ye-XG-PON. Phakathi kwazo, intengo yeyunithi ye-OLT (kufaka phakathi ibhodi lomsebenzisi we-combo) lingama-20% aphezulu, kanti intengo yeyunithi yeyunithi ye-ONU ingaphezulu kwama-50% ngaphezulu.
Yize imigqa engaphakathi ye-inbounder enikele idinga ukuhlinzeka ngemibuthano ye-uplink / downlink Symmetrical, ithrafikhi yangempela yemigqa eminingi ezinikezelwe ngaphakathi isebuswa yile ndlela yokuziphatha elandelayo. Yize kunezimo eziningi futhi eziningi lapho abasebenzisi benaka kakhulu ku-upkink bandwidth, cishe akukho mali yezinsizakalo ezingenakutholwa nge-xg-pon kodwa kufanele zitholakale nge-xgs-pon.
Isikhathi Sokuthumela: APR-12-2023