Gukoresha Ikoranabuhanga rya EPON muri FTTx Umuyoboro

Ikoranabuhanga rya EPON rishingiye kuri FTTx rifite ibyiza byo kwaguka kwinshi, kwizerwa cyane, igiciro gito cyo kubungabunga, hamwe nikoranabuhanga rikuze.Icya kabiri, itangiza uburyo busanzwe bwo gukoresha bwa EPON muri FTTx, hanyuma igasesengura ibintu byingenzi byikoranabuhanga rya EPON mubisabwa ikanasesengura EPON.Ibyiza birasesengurwa.Ibibazo bitatu by'ingenzi byaOLTibikoresho byumuyoboro uhagaze, uburyo bwamajwi ya serivise yuburyo, hamwe nuburyo bwo gucunga imiyoboro yububiko muri EPON ishingiye kuri FTTx yo kwinjira.

1 analysis Isesengura rya porogaramu ya EPON

Ikoranabuhanga rya EPON kuri ubu nigikorwa nyamukuru cyo gukoresha umurongo mugari wa optique hamwe na FTTx.Urebye ibiranga ikoranabuhanga rya EPON, gukura, ikiguzi cyishoramari, ibisabwa mubucuruzi, irushanwa ryamasoko nibindi bintu, uburyo bukuru bwikoranabuhanga rya EPON burashobora kugabanywa muburyo bukurikira:

FTTH (Fibre to Home), FTTD (Fibre to desktop), FTTB (Fibre to the Building), FTTN / V, nibindi. uburebure bwumugozi wumuringa winjira, hamwe nurwego rwabakoresha bitwikiriwe numutwe umwe, Menya aho umwanya wa fibre ugera kandiONUmuri X muri FTTx.Binyuze mu kohereza FTTx zitandukanye kugirango ugere kuri fibre optique, intego nyamukuru ya FTTH yo kuzamura fibre optique murugo, FTTB / FTTN nuburyo bwo kohereza ubukungu muri iki cyiciro.

EPON ifata Ethernet nkuwitwaye, ifata ingingo kugirango igabanye imiterere nuburyo bwo kohereza fibre optique.Igipimo cyo kumanura gishobora kugera kuri 10Gbit / s kuri ubu, kandi uplink yohereza amakuru yimiterere muburyo bwo guturika kwa Ethernet.Kugeza ubu, Ikoranabuhanga rya EPON ryakoreshejwe henshi muburyo bwubwubatsi bwa "optique mumuringa hanze".Duhereye ku bwihindurize bw'igihe kirekire FTTx y'urusobe, isura ya 10G EPON Technology nayo itanga igisubizo cyiza kubakoresha 'FTTx umuyoboro mwiza.

FTTx ikoresha fibre optique nkibikoresho byohereza, bifite ibyiza byubushobozi bunini bwo kohereza, ubuziranenge bwo hejuru, ubwizerwe buhanitse, intera ndende yohereza, hamwe no kurwanya amashanyarazi.Nicyerekezo cyiterambere cyogukoresha umurongo mugari.

(1) Uburyo bwa FTTH

FTTH, cyangwa fibre-to-home-home, irakwiriye ahantu abakoresha batuye ugereranije, nka villa, aho abayikoresha bafite ibyifuzo byinshi byumuyoboro mugari, kandi abitezimbere bagira uruhare mukubaka imiyoboro.FTTH ibona "uburyo bwiza bwo kubona, nta muringa mu nzira yose ”.Umutwe umwe uhuye numukoresha umwe.Umukoresha abona umurongo mugari hamwe nubushobozi bwubucuruzi, ariko ikiguzi cyo kubaka nacyo kiri hejuru.

(2) Uburyo bwa FTTD

Uburyo bwa FTTD burakwiriye kuri ssenariyo aho inyubako zo mu biro zo mu rwego rwo hejuru hamwe n’abandi bakoresha zikoreshwa cyane kandi zigasaba umurongo mwinshi, kandi biranakenewe kuri ssenariyo aho serivisi zagutse cyane nka IPTV zitezwa imbere ahantu hatuwe cyane.Uburyo rusange bwo guhuza imiyoboro ni ugukuramo umugozi wa optique uva muri OLT ku biro bikuru ukageza ku nyubako, ugashyira ibice bya optique mu cyumba cyohererezamo cyangwa koridoro y’inyubako, hanyuma ukabihuza na desktop y’umukoresha ukoresheje insinga ya optique cyangwa igitonyanga umugozi.Muri iki kibazo, birakenewe guhitamo niba washyira optique ya optique muri koridor cyangwa mucyumba cyohererezamo inyubako ukurikije ubukana bwabakoresha.Mugihe kimwe, urebye uburyo bworoshye bwo kwishyiriraho, tekinoroji ikonje ikwiye gukoreshwa bishoboka mugihe ushyirahoONUkuruhande rwabakoresha.

(3) Uburyo bwa FTTB

Uburyo bwa FTTB burakwiriye kuri ssenariyo aho umubare ugereranije wabakoresha munzu imwe yubucuruzi ari nto kandi ibisabwa byumuvuduko ntabwo ari byinshi.FTTB imenya "fibre ku nyubako, umuringa ntusohoka mu nyubako" .Umugozi wa optique wa operateri ugera ku nyubako, kandi inzira yo kwinjira ikoherezwa muri koridor.Binyuze kuri iyi node, ubucuruzi bukenewe kubakoresha bose mu nyubako burapfukiranwa, kandi abakoresha bakoresha umurongo mugari hamwe nubushobozi bwubucuruzi bikomeza kuba hejuru cyane, nigisubizo nyamukuru kubaturage bashya;

(4) Uburyo bwa FTTN / V.

FTTN / V ahanini ni "fibre kumuryango (umudugudu), umuringa ntushobora kuva mumuryango (umudugudu)", uwukoresha akoresha umugozi wa fibre optique mumuryango (umudugudu), agashyiraho umubare muto cyangwa ndetse nu node gusa muri icyumba cya mudasobwa cyangwa inama yo hanze yabaturage (umudugudu), Kugirango ugere kubucuruzi kubakoresha mugace kose (umudugudu), kandi umurongo wacyo nubushobozi bwubucuruzi ni ntege nke.Nibisubizo nyamukuru byo kwiyubaka mumijyi no mucyaro "umwiherero wumuringa".

Uburyo butandukanye bwo guhuza ibikorwa bigira ingaruka muburyo bwubaka bwa ODN hamwe nigenamiterere rya sisitemu ya sisitemu ya PON.Uburyo bukwiye bwo guhuza imiyoboro bugomba guhitamo ukurikije ibikenewe.Urubuga rwa FTTx rusangiwe nabakiriya batandukanye hamwe nuburyo butandukanye bwo gukoresha imiyoboro ya FTTx burashobora gushirwaho mukarere kamwe.

2 analysis Isesengura ryibibazo bya EPON mubisabwa

2.1 Ingingo z'ingenzi za EPON mugutegura umushinga

EPON yibanze cyane kubintu 4 mugutegura umushinga: gutegura imiyoboro ya optique,OLTaho ushyira, optique ya splitter yububiko, nubwoko bwa ONU.

Igishushanyo mbonera cya kabili ya optique, inzira yo kwinjira murugo, hamwe no guhitamo umugozi wa optique / fibre nibibazo bikomeye cyane mugikorwa cyo guhuza imiyoboro ya EPON, bizagira ingaruka kuburyo butaziguye ishoramari rusange, gukoresha insinga ya optique, gukoresha ibikoresho n'umuyoboro. ikoreshwa.Gukoresha tekinoroji ya PON ishyira ibyifuzo byinshi kubakoresha ubu optique ya kabili ya neti ya rezo ya rezo, cyane cyane muburyo bw'imiyoboro ya optique ya kabili muri selire.Niba insinga ya fibre optique ikoreshwa kuri buri mukoresha, hasabwa umubare munini winsinga za fibre optique muri selire, izakoresha umutungo munini wumuyoboro muri selire, bigatuma ibiciro byiyongera kubakoresha.Niyo mpamvu, birakenewe gukora akazi keza mugutegura imiyoboro ya kabili ya optique mugihe cyambere cyo kubaka, harimo umugozi wa optique ya kabili ya optique, numero yibanze, nibindi, kugirango wirinde gutakaza umutungo bishoboka.

Ishyirwa rya OLT na splitter bizagira ingaruka cyane kumiterere nigiciro cyishoramari ryumuyoboro wa optique.Kurugero, OLT yoherejwe kubiro bikuru izaba ifite igice cyumugozi wa optique wumugongo, kandi koherezwa mubaturage bigabanywa numutungo wibyumba byo mu biro hamwe nigiciro cyo gutera inkunga.Mu ntangiriro yiterambere, birasabwa kohereza OLT hagati biro.Mugihe uhitamo aho buri gikoresho giherereye, ikwirakwizwa ryabakoresha muri selire hamwe nibisabwa umurongo mugari wabakoresha batandukanye bigomba gutekerezwa icyarimwe, kandi itsinda ryabakoresha ryinshi hamwe nitsinda ryabakoresha batatanye bigomba gufatwa ukundi.

Ubwoko bwa ONU bugomba gutoranywa bufatanije nuburyo bwa kabili mugace kinjira.ONU zirimo ahanini POS + DSL na POS + LAN.Kurugero, mugihe insinga zinyubako mubaturage zahinduye gusa, ONU izakoresha POS + DSL, Ijwi ryinjira binyuze muri softswitch, umurongo mugari wa ADSL / VDSL;iyo kubaka insinga mu baturage byemeza Icyiciro cya 5,ONUizakoresha ibikoresho bya POS + LAN, no kububiko bwibiro, ibice, na parike hamwe nogukoresha insinga, ONUs izakoresha ibikoresho bifite interineti ya LAN.

Mubishushanyo mbonera, agaciro ntarengwa muri ODN kagomba kugenzurwa, kandi birasabwa kugenzura muri 26dB.

2.2 Ibiranga EPON murusobe rwa FTTX

Ugereranije nubuhanga gakondo bwo gukoresha, tekinoroji ya FTTx igenda ikura ishingiye kuri EPON ifite ibyiza bikurikira:

.EPON iroroshye kubaka.ODN yoherejwe mu nyubako, na ONU zoherejwe kuruhande rwabakoresha kugirango batange serivisi zitandukanye.Igihe cyo kubaka ni kigufi kandi kohereza serivisi biroroshye kandi byoroshye.

.ODN ni igikoresho cyoroshye.Biroroshye kubona ahazubakwa ODN mu nyubako, igabanya ibiciro byo kubaka, gukodesha no gufata neza icyumba cya mudasobwa.

(3) Umuyoboro ufite ubukungu kandi uzigama ibiciro byubwubatsi.Umuyoboro wa FTTx ukoresha ingingo-kuri-kugwiza imiterere, ikiza abakoresha benshi umugongo wa fibre fibre.Fibre yihuta irashobora gukorera abakoresha benshi icyarimwe, itezimbere cyane inyungu zishoramari mukubaka imiyoboro.

(4) Biroroshye kubungabunga no gucunga.Hano hari imiyoboro ya EPON ihuriweho nubuyobozi bukuru, ishobora gucunga abakoresha-ONU, byoroshye gucunga no kubungabunga kuruta modem ya HDSL cyangwa optique ya optique.

3 、 Umwanzuro

Muri make, abashoramari bahura nuburyo bukomeye bwo guhatana.Mu rwego rwo guhuza imiyoboro, gusa iyo abashoramari bahisemo uburyo bwiza bwo kugera barashobora kwemeza byimazeyo inyungu zabakora kandi bagahuza ibyifuzo byubucuruzi bigenda bihinduka. Sisitemu ya EPON nubuhanga bushya bwo kugera imbere.Sisitemu ya EPON ni urubuga rwa serivisi nyinshi kandi ni amahitamo meza yo kwimukira kumurongo wa IP yose.EPON irashobora gutanga umuvuduko mwinshi, wizewe, serivise nyinshi kandi zishobora gucungwa serivisi zihenze ugereranije nigiciro gito, ibyo nibigaragaza byuzuye kandi byemeza agaciro kubakoresha kubakoresha.