Sechizvarwa chitsva che optical fiber access tekinoroji, XPON ine zvikomborero zvakakura mu-anti-interference, bandwidth maitiro, kusvika kure, kugadzirisa uye kutarisira, nezvimwewo.XPON optical access tekinoroji yakura EPON uye GPON ese ari maviri anoumbwa nepakati hofisi OLT, mushandisi-parutivi ONU michina uye passive optical kugovera network ODN.Pakati pavo, ODN network nemidziyo chikamu chakakosha cheXPON yekubatanidza kuwana, inosanganisira kuumbwa uye kushandiswa kweiyo itsva optical fiber network.Inoenderana ODN midziyo uye networking mutengo zvave zvakakosha zvinhu zvinomisa XPON application.
Pfungwa
Parizvino, indasitiri yakajairika ine tariro xPON matekinoroji anosanganisira EPON neGPON.
GPON (Gigabit-CapablePON) tekinoroji ndiyo yazvino chizvarwa chebroadband passive optical integrated access standard yakavakirwa paITU-TG.984.x mwero.Iyo ine akawanda mabhenefiti akadai seyakakwira bandwidth, kushanda kwepamusoro, kufukidzwa kukuru, uye hupfumi hwevashandisi.Vashandi vanozviona se tekinoroji yakakodzera kuona Broadband uye shanduko yakazara yekuwana network masevhisi.Chiyero chepamusoro chekudzika kweGPON i2.5Gbps, mutsara wekumusoro i1.25Gbps, uye huwandu hwepakati hwekuparadzanisa i1:64.
EPON imhando yechiri kusimukira yebroadband yekuwana tekinoroji, iyo inoziva iyo yakasanganiswa sevhisi yekuwana data, inzwi uye vhidhiyo kuburikidza neayo imwe optical fiber yekuwana system, uye ine hupfumi hwakanaka.EPON ichava tekinoroji yekupinda mubroadband.Nekuda kwehunhu hweiyo EPON network chimiro, mabhenefiti akakosha ekuwana Broadband kumba, uye yakasikwa organic musanganiswa nemakomputa network, nyanzvi pasi rese dzinobvuma kuti passive optical network kuzadziswa kwe "matatu network mune imwe" uye. mhinduro kumugwagwa mukuru wemashoko.Iyo yakanakisa nzira yekufambisa ye "maira yekupedzisira".
Chizvarwa chinotevera PON network system xPON:
Kunyangwe EPON neGPON vaine matekinoroji avo akasiyana, vane network yakafanana topology uye yakafanana manejimendi manejimendi chimiro.Iwo ese ari maviri akatariswa kune imwecheteyo yekuwana network application uye haasi asina-convergence.Iyo inotevera-chizvarwa PON network system xPON inogona kutsigira panguva imwe chete.Aya maitiro maviri, kureva, xPON michina inogona kupa maitiro akasiyana ePON yekuwana zvichienderana nezvinodiwa zvakasiyana zvevashandisi, uye kugadzirisa dambudziko rekusapindirana kwehunyanzvi huviri.Panguva imwecheteyo, iyo xPON sisitimu inopa yakabatana network manejimendi chikuva chinogona kubata akasiyana bhizinesi zvido, kuziva yakazara-sevhisi (kusanganisira ATM, Ethernet, TDM) kugona kwekutsigira neQoS garandi yakasimba, uye inotsigira yakadzika tambo yeTV kutapurirana kuburikidza neWDM;panguva imwe chete, inogona kuona otomatiki EPON, GPON Access kadhi inowedzerwa uye inobviswa;inonyatso enderana neEPON neGPON network panguva imwe chete.Kune maneja emanetiweki, manejimendi ese uye zvigadziriso ndezvebhizinesi, zvisinei nemusiyano wehunyanzvi pakati peEPON neGPON.Izvi zvinoreva kuti, kushandiswa kwehunyanzvi kweEPON neGPON kuri pachena kune network manejimendi, uye mutsauko pakati pezviviri unodzivirirwa uye unopiwa kune yekumusoro-layer yakabatana interface.Iyo yakabatana network manejimendi chikuva ndeimwe yemabhenefiti makuru eiyi sisitimu, iyo inonyatso ziva kubatanidzwa kwemaviri akasiyana ePON matekinoroji pane network manejimendi level.
Main parameters uye technical zviratidzo
Iwo makuru ma parameter eiyo xPON network ndeaya anotevera:
● Multi-service support capabilities: kuzadzisa zvizere-sevhisi (kusanganisira ATM, Ethernet, TDM) simba rekutsigira neQoS yakasimba garandi, yebhizimusi optimization, tsigira downlink cable TV transmission kuburikidza neWDM;
● Kuzvizivisa otomatiki uye manejimendi eEPON neGPON makadhi ekuwana;
● Tsigira 1:32 unyanzvi hwebazi;
●Kutapurirana kureba hakusi kupfuura makiromita makumi maviri;
●Kumusoro nekudzika symmetric line rate 1.244Gbit/s.Tsigira port traffic statistics basa;
● Tsigira simba uye static bandwidth allocation basa.
● Tsigira multicast uye multicast mabasa
Iwo makuru tekinoroji zviratidzo zvexPON network:
(1) Sistimu yesimba: Iyo system ine yakakura-yakawanda IP switching core (30G) kuti ipe 10G Ethernet network interface, uye OLT imwe neimwe inogona kutsigira 36 PON network.
(2) Multi-service interface: Tsigira TDM, ATM, Ethernet, CATV, uye inopa yakasimba QoS vimbiso, inogona kusanganisira zvizere masevhisi aripo.Inotsigira zvechokwadi kukwidziridzwa kwakanaka kwebhizinesi.
(3) Kuvimbika kwepamusoro kweSystem uye kuwanikwa zvinodiwa: Iyo sisitimu inopa sarudzo ye1 + 1 yekudzivirira yekuchinja nzira yekuzadzisa zvizere zvinodiwa netiweki yekufonera network kuvimbika, uye nguva yekuchinja iri pasi pe50ms.
(4) Network renji: inogadziriswa 10,20Km network nzira, inosangana zvizere nezvinodiwa zvetiweki yekuwana.
(5) Yakabatana system manejimendi software chikuva: Kune dzakasiyana nzira dzekuwana, iva nekubatana network manejimendi chikuva
Chimiro
Passive optical fiber network system ndeye optical fiber Broadband transmission system inoumbwa neoptical line terminal (OLT), optical distribution network (ODN), uye optical network unit (ONU), inonzi PON system.Iyo PON system reference modhi inoratidzwa muMufananidzo 1.
Iyo PON sisitimu inotora point-to-multipoint network chimiro, inoshandisa passive optical kugovera network senzira yekutapurirana, inoshandisa yekutepfenyura modhi mudownlink, uye TDM inoshanda modhi muuplink, iyo inoziva imwe-fiber bidirectional chiratidzo chekufambisa.Kuenzaniswa neyechinyakare yekuwana network, iyo PON system inogona kuderedza kudyiwa kwekupinda mukamuri yekombuta uye kuwana tambo dzemagetsi, kuwedzera kuvharika kwetiweki yenzvimbo yekupinda, kuwedzera huwandu hwekupinda, kuderedza kutadza kwemitsara nemidziyo yekunze, uye kuvandudza kuvimbika kwehurongwa.Panguva imwecheteyo, inochengetedzawo mari yekugadzirisa, saka iyo PON system ndiyo huru yekushandisa tekinoroji yeNGB nzira mbiri dzekuwana network.
Zvinoenderana neakasiyana masaini ekufambisa mafomati eiyo system, inogona kunzi xPON, senge APON, BPON, EPON, GPON uye WDM-PON.GPON neEPON zvakashandiswa zvakanyanya pasi rose, uye kune zvakare mashandisirwo makuru mukushandurwa kweredhiyo neterevhizheni nzira mbiri.WDM-PON igadziriro inoshandisa yakazvimiririra yavelength chiteshi pakati peOLT neONU kugadzira chinongedzo-kune-poinzi.Kuenzaniswa neTDM- yakadai seEPON neGPON, PON neWDM-PON ine zvakanakira zvehupamhi hwepamusoro, kujeka kweprotocol, kuchengeteka uye kuvimbika, uye scalability yakasimba.Ndivo hutungamiriri hwemangwana.Munguva pfupi, nekuda kweiyo yakaoma nheyo dzeWDM-PON, iyo yakakwirira yemidziyo mitengo, uye yakakwira system inodhura, haisati yave nemamiriro ekushandisa kukuru.
Iyo huru tekinoroji zviratidzo zvexPON
①System simba: Iyo system ine yakakura-yakawanda IP switching core (30G), inopa 10G Ethernet network interface, uye OLT yega yega inogona kutsigira 36 PONs;
②Multi-service interface: tsigira TDM, ATM, Ethernet, CATV, uye inopa yakasimba QoS vimbiso, inogona kunyatsotora bhizinesi riripo, uye inotsigira zvechokwadi kusimudzira kwebhizinesi;
③ Kuvimbika kwakanyanya kweSitimu uye kuwanikwa zvinodiwa: Iyo sisitimu inopa sarudzo ye1+1 yekudzivirira yekuchinja nzira yekuzadzisa zvizere zvinodiwa netiweki yekufonera network kuvimbika, uye nguva yekuchinja iri pasi pe50m;
④Network range: 10-20km network dhayamita inogona kugadzirwa kuti ikwane zvizere zvinodiwa netiweki yekuwana;
⑤Unified system management software chikuva: Kune dzakasiyana nzira dzekuwana, ine yakabatana network manejimendi chikuva.
HUANET inogadzira mhando dzakawanda dzexPON ONU, xPON ONT, dzinosanganisira 1GE xPON ONU, 1GE+1FE+CATV+WIFI xPON ONT, 1GE+1FE+CATV+POTS+WIFI xPON ONU, 1GE+3FE+POTS+WIFI xPON ONT.Isu tinopawo Huawei xPON ONT.
Nguva yekutumira: Jun-24-2021