Nekuitwa kwe "Broadband China" uye "Speed-up uye kudzikisa-mubhadharo" nzira, China yakagadziriswa Broadband network yakagara ichivandudzwa;mushandisi Broadband yachinja kubva pa10M uye pazasi kuenda pa50M/100M/200M, uye yakashanduka yakanangana neGigabit;Broadband network Infrastructure Mutual kusimudzira nepamusoro-tsanangudzo vhidhiyo uye Internet masevhisi.
Kuti uwane kusvetuka kubva ku "100M" kuenda ku "Giga", PON tekinoroji inoda kuvandudzwa kusvika ku10G PON.Chimwe chezvipingamupinyi zvikuru pachiyero chekuendesa kwe10G PON mutengo.Mutengo we10G PON zvishandiso unosanganisira mutengo we optical modules, chipsets, uye PCD kurongedza.Mutengo we optical modules uye chipsets ndicho chinhu chikuru.
China Telecom's 2018 10G PON centralized acquisition test uye kubhidha kunosanganisira zvikamu zvitatu: GPON, 10G-EPON, uye XG-PON midziyo.China Mobile's 2018 GPON midziyo yekuunganidza inosanganisira GPON, XG-PON, XGS-PON michina.XGS-PON inguva yekutanga.
GPON inokwidziridzwa kuita XGPON1 kana XGSPON.Parizvino, mhinduro huru pamusika ndeyekunze multiplexer mhinduro.Mumhinduro iyi, masaini eGPON uye XGPON1 / XGSPON anowedzerwa muWDM modhi nekuwedzera XGPON1 / XGSPON bhodhi kadhi, uyezve yekunze multiplexer inotumirwa kune vashandisi vari kure.Nheyo yemhinduro iyi iri nyore, asi pane zvakawanda zvisingabatsiri senge nguva refu yekusimudzira yekuvhura, kudhura kwakanyanya, midziyo yakawanda inotsigira, uye hombe nzvimbo.Uyezve, kuunzwa kwekunze multiplexer kunounzawo yakawedzera optical simba kurasikirwa, izvo zvichave nemhedzisiro.Njodzi kune bhizinesi revatengi riripo.
Combo PON musanganiswa weGPON uye XGPON1 / XGSPON.Nheyo yaro ndeyekuona panguva imwe chete iyo yakazvimiririra kutapurirana uye kugamuchirwa kweGPON uye XGPON1 / XGSPON optical masaini mune optical module, uye kusanganisa mana akasiyana emutakuri wavelengths kuburikidza neyakavakwa-mukati WDM mudziyo.Inopa imwe optical fiber interface, inogona kuwirirana ne iripo GPON network masevhisi uye XGPON1 kana XGSPON masevhisi panguva imwe chete, kudzivirira shanduko kune iripo network chimiro uye kuwedzera imwe nzvimbo yekamuri, nekudaro kuwana isina musono uye inoshanda GPON kusimudzira.
Combo-PON system diagram
Quad-OSA, ina-port optical mudziyo weCombo PON OLT, inobatanidza seti mbiri dzetransceivers mune imwe optical mudziyo: yechinyakare GPON's 2.5G 1490nm DFB laser uye 1310nm APD uye XGPON's 10G 1577nm EMLnmPD yakashandiswa neA1270DmPD kubatanidza kune inobuda optical port.
Iyo Combo PON OLT protocol inosanganisira maviri seti emaprotocol, GPON neXGPON, ane akati wandei.Kune N1, N2a, D1, D2 uye mamwe maratidziro eiyo link bhajeti.Mumashoko akareruka, kuitira kuti ienderane ne28dB uye 32dB mabhajeti echinyakare GPON B + uye C + links, XG (S) -PON inoenderana neiyo imwechete yekubatanidza bhajeti ndiyo inonyanya kukonzeresa kusimudzira kwakatsetseka kweGPON kuNGPON.Iyi ndiyo D1 uye D2 yakatarwa inoenderana neCombo PON.
Mumakore mashoma apfuura, nzira yekuendesa yehybrid yakasanganiswa Combo PON network yanga ichinonoka.Chimwe chezvikonzero chikuru kukura kweiyo yekugovera ketani yeimwe-fiber bidirectional optical zvishandiso padivi reCombo PON OLT, kunyanya kukura kwepamusoro-link bhajeti optical zvishandiso.degree.Kwenguva yakareba, chiyero chegoho chemakambani e-optical device mu-high-standard Quad-OSA anga achitarisana nematambudziko makuru.Kuitira kukurudzira kushandiswa kweCombo PON, mapato ose ari mumakambani emakambani akakanganisa uye akabvuma chirongwa chekushandura chekuderedza N2a. kusvika 31db.Nekudaro, kumakambani mazhinji emagetsi ekugadzira zvigadzirwa zvePON, goho reN2a-inoenderana Quad-OSA zvigadzirwa zvichiri kumanikidzwa, uye goho re32 dB D2 optical michina yakaderera.
Kune rimwe divi, padanho rekushandisa, vashandisi vanga vachitarisira kukurumidza kukura kwepamusoro-link bhajeti optical zvishandiso / optical modules.Pa 2018 China Optical Network / FTTH Forum yakaitirwa muBeijing muna Chikumi gore rino, vanoshanda seChina Mobile neChina Telecom vachiri kuda zvakajeka kuti D2 optical devices / optical modules iumbe ane ruzivo rwakakura kuti atsigire kuzara kweCombo PON.