Fiber-optic communication(FTTx) yagara ichionekwa senzira inovimbisa yeBroadband yekuwana mushure mekuwana DSL Broadband. Kusiyana neakajairika akamonyoroka kutaurirana, ine yakakwirira yekushanda frequency uye yakakura hukuru (inogona kuve yakavakirwa kune vashandisi vanoda kukwidziridza kune yakasarudzika bandwidth ye10-100Mbps), kushomeka kudiki, hapana kupindira kwemagetsi kwakasimba, simba rekurwisa-electromagnetic pulse kugona, kuvanzika kwakanaka uye zvichingodaro.
Fiber Broadband Communications (FTTx) inosanganisira akasiyana mafomati ekuwana akadai seakajairwa FTTP (Fiber to the Presise, FiberToThePremise), FTTB (Fiber to Building, FiberToTheBuilding), FTTC (Fiber to Roadside, FiberToTheCurb), FTTN (Fiber to the Neighbourhood, FiberToTheNeighborhood), FTTZ (Fiber kuZone, FiberToTheZone), FTTO (Fiber kuHofisi, FiberToTheOffice), FTTH (Fiber Kumba kana Fiber Kumba, FiberToTheHome).
FTTH ndiyo yakanakisa sarudzo yekuti fiber ipinde mumba zvakananga
Kune vazhinji vashandisi vepamba, FTTH ndiyo yakanakisa sarudzo. Iyi fomu inogona kubatanidza optical fiber uye optical network unit (ONU) kumba chaiko. Iyo yakasiyana-siyana ye fiber Broadband yekuwana kunze kweFTTD (fiber kune desktop, FiberToTheDesk). Iyo fomu yefiber access iri padyo nemushandisi.Nekuwanda kwechimiro chefiber Broadband access, zvinofanirwa kucherechedzwa kuti ikozvino FTTH Broadband access haingorevi faibha kumba, uye kazhinji yakataura kune dzakasiyana siyana fiber. -kusvika-kumba-mafomu ekuwana akadai seFTTO, FTTD, uye FTTN.
Pamusoro pezvo, muverengi anofanirwa kutarisisa mutsauko uripo pakati peyazvino "FTTx + LAN (fiber + LAN)" Broadband access scheme mukunzwisisa FTTH.FTTx + LAN ndeye Broadband access solution inoshandisa "100Mbps kune cell kana kuvaka, 1 -10Mbps kuenda kumba” uchishandisa fiber +5 yakamonyoroka pair mode -chinjauye hofisi yepakatichinjauye optical network unit (ONU) Yakabatanidzwa, sero rinoshandisa Category 5 twisted pair cabling, uye mushandisi wekuwana chiyero anogona kusvika 1-10Mbps.
Kusiyana neiyo yemhuri-yega yakasarudzika bandwidth chirongwa cheFTTH, iyo bandwidth yeFTTx + LAN inogovaniswa nevakawanda vashandisi kana mhuri. Kana paine vazhinji vashandisi vakagovaniswa, bandwidth kana network kumhanya kweFTTx + LAN kwakaoma kuvimbisa.
FTTH tekinoroji mwero
Parizvino, zvinoratidzika kuti bandwidth-yakasarudzika ADSL2 + uye FTTH yave nzira huru yekukura kwebroadband mune ramangwana.Muhunyanzvi hweFTTH, mushure meAPON (ATMPON), pane parizvino GPON (GigabitPON) chiyero chakagadziridzwa neITU/ FSAN, uye miviri miviri yeEPON (EthernetPON) yakagadzirwa neIEEE802.3ah boka rinoshanda riri kukwikwidza.
GPON tekinoroji ichizvarwa chitsva Broadband passive optical integrated access standard yakavakirwa paITU-TG.984.x mwero. Iyo inowanikwa bandwidth ndeye 1111 Mbit / s. Kunyangwe iyo tekinoroji yakaoma, ine yakakwira bandwidth, kushanda kwepamusoro, kufukidzwa kukuru uye vashandisi. Mabhenefiti eakapfuma maficha anotariswa nevamwe vekuEurope neAmerica vanoshanda seyakanaka matekinoroji ebroadband yekuwana network masevhisi.
EPON mhinduro ine scalability yakanaka uye inogona kuona nzira dzakasiyana siyana dzefiber-to-the-imba
EPON (Ethernet Passive Optical Network) imhando nyowani yefiber access network tekinoroji. Iyo inoshanda uplink transmission bandwidth ndeye 1000 Mbit/s. Iyo inotora point-to-multipoint chimiro uye passive optical fiber kutapurirana, uye inogona kupa akawanda marudzi paEthernet. Bhizinesi rinobatanidza zvakanakira zvePON tekinoroji uye tekinoroji yeEthernet, ine mutengo wakaderera, yakakwira bandwidth, yakasimba scalability, kugarisana kwakanaka neEthernet iripo, uye manejimendi ari nyore. Inoshandiswa muAsia, seChina neJapan. Zvakawanda zvakanyanyisa.
Hazvina mhosva kuti PON fiber system inoumbwa neiOLT(Optical Line Terminal, Optical Line Terminal), POS (Passive Optical Splitter),ONU(Optical Network Unit) uye network yayo manejimendi system .Izvi zvikamu zvakaiswa neISP installer panguva yekuisa, uye vashandisi vemba ivo pachavo kazhinji havana mamiriro ekumisa ivo pachavo.
FTTH marongerwo
Panyaya yemabasa chaiwo, iyoOLTinoiswa paISP central office uye ine basa rekubatanidza, manejimendi, nekuchengetedza nzira yekudzora.Iyo yakanyanya kureba yekufambisa pakati peOLTuyeONUinogona kusvika 10-20km kana kupfuura. TheOLTine basa rinoita kuti riyedze kureba kunonzwisisika pakati pechimwe nechimweONUuyeOLT, uye saizvozvo, theONUinorayirwa kuti igadzirise yayo chiratidzo chekufambisa kunonoka kuita zvakasiyana. Masaini anofambiswa neONUsyechinhambwe inogona kunyatso wedzerwa pamwe chete paOLT.OLTmidziyo kazhinji ine bandwidth yekugovera basa, iyo inogona kugovera chaiyo bandwidth neOLTmaererano nezvinodiwa nevaONU. Uyezve, theOLTmudziyo une point-to-multipoint hub chimiro, uye anOLTanogona kutakura 32ONUs(uye inogona kuzowedzerwa), uye zveseONUspasi peumwe neumweOLTkugovera 1G bandwidth kuburikidza nenguva yekuparadzanisa kuwanda, kureva, imwe neimweONUinogona kupa kumusoro uye pasi Iyo yakanyanya bandwidth ndeye 1 Gbps.
A POS passive fiber splitter, inopatsanura kana kupatsanura, chinhu chinoshanda chinobatanidza iyoOLTuyeONU. Basa rayo nderekugovera iyo yekuisa (yakadzika) masaini masaini kune akawanda ekubuda madoko, achigonesa vashandisi vakawanda kune One fiber inogoverwa kugovera bandwidth; munzira yekukwira, akawandaONUoptical masaini inguva-kupatsanurwa kwakapetwa kuita imwe fiber.
ONUkazhinji ine 1-32 100M ports uye inogona kubatanidzwa kune akasiyana-siyana network terminals
TheONUchishandiso chinoshandiswa neEU kuwana mushandisi wekupedzisira kana mukotochinja. Iyo imwechete optical fiber inogona nguva-kuwanda data yeakawandaONUskune imweOLTchiteshi kuburikidza ne passive optical splitter.Nekuda kweiyo point-to-multipoint tree topology, mari yekuunganidza mudziyo inoderedzwa, uye netiweki nhanho zvakare yakajeka.ONUmidziyo ine zvimwechinjamabasa. Iyo uplink interface ndeyePON interface. Iyo yakabatana neiyo interface board yeOLTmudziyo kuburikidza ne passive optical splitter. Iyo downlink yakabatana kuburikidza ne1-32 100-Gigabit kana Gigabit RJ45 ports. Data midziyo, zvakadaiswitches, Broadbandrouters, makomputa, IP mafoni, set-top mabhokisi, nezvimwewo, gonesa point-to-multipoint deployment.
Nzira yekubatanidza sei mumhuri
Kazhinji, FTTH kuneONUmidziyo yeiyo terminal ichapa anokwana mana 100M RJ45 interfaces. Kune vashandisi vane makomputa mana akabatanidzwa newaya network makadhi, vanogona kuzadzisa zvinodiwa nemakomputa akawanda anogovera kuwana Internet mumba. Uye zvakare, kune FTTH network vachishandisa ine simba IP, vashandisi vanogona zvakare kubatana kuneswitcheskana Wireless APs yekuwedzera yewaya uye isina waya network sezvinodiwa.
Broadband yazvinoroutersinogona kutsigira zvakakwana FTTH kuwana mhinduro
Kune zviteshi zveFTTH zvinongopa 100M RJ45 interface uchishandisa yakatarwa IP, inogona kuwedzerwa nebroadband.routerkana wirelessrouter.Muchigadziro, muWEB maseting interface yerouter, tsvaga "WAN port" sarudzo, sarudza WAN port connection type se "static IP" mode, uye wozoisa IP kero uye subnet inopiwa neISP mune inotevera interface. Iyo mask, gedhi uye DNS kero zvese zvakanaka.
Mukuwedzera, vashandisi veakatengwa Broadbandrouterskana wirelessroutersinofanira kuishandisa sechinjakana isina waya AP muFTTH network. Teerera kune anotevera mapoinzi paunenge uchimisa:Kushandisa wayarouterse achinjakana isina waya AP, isa yakamonyoroka peya plug kubva paONUmudziyo wakananga mune chero interface mune router's LAN port. Mune peji rekutungamira rerouter, dzima DHCP server function yakavhurwa by default.Seta IP kero yerouteruyeONUmudziyo uchishandisa dynamic IP sechikamu chimwe chete chetiweki.
Sezvo fibre yekuwana ichipa unlimited bandwidth, Fiber kuImba (FTTH) inozivikanwa se "mambo" wenguva yebroadband uye ndicho chinangwa chekupedzisira chekusimudzira Broadband. Mushure mekunge fiber yaunzwa kumba, kasi yeInternet yemushandisi inogona kukwidziridzwa zvakare. Zvinongotora masekonzi mashoma kudhawunirodha 500MB DVD bhaisikopo, iro rinokurumidza zvakapetwa kagumi kupfuura ikozvino ADSL mhinduro. Nekuramba kuri kudzikiswa kwemutengo weFTTH erection, mwenje weimba uri kufamba kubva kuhope kuenda kuchokwadi.