EPON (Ethernet Purnical Netical Netical)
Shabakadda indhaha ee Ethernet-ka ee Ethernet waa tikniyoolajiyad pon oo ku saleysan Ethernet. Waxay u qaadataa hal dhibic qaab dhismeedka qaabdhismeedka badan iyo gudbinta fiber-ka ee fiber-ka, oo bixiya adeegyo badan oo ku saabsan Ethernet. Teknolojiyadda EPON waxaa habeeya kooxda shaqada ee IEE802.3. Bishii Juun 2004, kooxda shaqada ee IEEE802.3.3.3.3.302.3.3.3.3005 Heerka 2005).
Heerkan, Ethernet iyo Technolojiyadda Ponnet waa la isku daraa, oo leh tikniyoolajiyadda Pon ee loo adeegsado lakabka jirka iyo borotokoolka Ethernet ee loo adeegsado lakabka xogta, iyadoo la adeegsanayo topology-ka ee PON-ga si loo gaaro marin-u-helidda Ethernet. Sidaa darteed, waxay isku daraysaa faa'iidooyinka tikniyoolajiyada Teknolojiyadda iyo Ethernet, qaali, xad-dhaaf sarreeya, isbadal xoog leh, oo la jaan qaadaya Ethernet, maamulka ku habboon, iwm.
GPON (Gigabit-Awoodda-Pon)
Teknolojiyaddu waa jiilkii ugu dambeeyay ee jilbiska ballaaran ee is-dhexgalka optical ee is dhexgalka ee ku saleysan heerka ay ku taal ITU-TG.984. X Heerka, oo leh faa iidooyin badan sida xayndaab aad u sarreeya, hufnaan sare, aag ballaaran oo daboolida, iyo adeegsiyada hodanka ah ee hodanka ah. Waxaa loo arkaa howlgalada badankood inay yihiin tikniyoolajiyadda ugu habboon ee lagu gaarayo isbeddelka ballaadhan iyo isbeddelka dhameystiran ee adeegyada shabakadda. GPON ayaa markii ugu horreysay ee ay soo jeedisay ururka FSAN bishii Sebtember 2002.
Tiknolojiyadda GPON ayaa ka timid heerka tikniyoolajiyada ATMPON ee si tartiib tartiib ah loo sameeyay 1995, iyo Pon waxay u taagan tahay "shabakad indhaha ah oo visical" oo Ingiriis ah. GPON (Gigabit Captiol Sevical Shabakad Difaac ah) ayaa markii ugu horreysay ee ay soo jeedisay ururka FSAN bishii Sebtember 2002, haddana waa bishii Maarso 2003, 3-da Febraayo iyo Juun 2004, ugu dambeyntiina waa la sameeyay. Qaab-dhismeedka aasaasiga ah ee ku saleysan tikniyoolajiyadda GPON waxay la mid tahay pon-ka jira, oo ka kooban Olt (shabakadda toosan ee Terminal-ka) ee ka kooban apple-ka-qaniinyada (fiber-ka indhaha) iyo kala-goynta shabakadda ee isku xidhka, iyo nidaamka maaraynta shabakadda ee isku xirta labada aaladaha.
Farqiga u dhexeeya EPON iyo GPON
GPON waxay u isticmaashaa tikniyoolajiyada warshadeed (WDM) oo lagu suuro geliyo siligga isku mar oo soo degsan. Badanaa, side tolida optical ee 1490m ayaa loo isticmaalaa soo dejinta, halka 1310m-ka ugu habboon ee loo xusho in la soo geliyo. Haddii calaamadaha TV-ga ay u baahan yihiin in la kala qaado, oo ah 1550m side optical ah ayaa sidoo kale la isticmaali doonaa. In kasta oo ONU kasta uu gaari karo xawaaraha soo dejisan ee ah 2.488 Grits / S, GPON sidoo kale waxay u isticmaashaa waqtiga qaybinta fara badan (TDMA) si loogu qoondeeyo waqti cayiman isticmaale kasta oo ku saabsan astaamaha marxalad kasta.
Heerka ugu badan ee Download ee XGPON waa ilaa 10Gbits / s, oo heerka ugu hooseysa ayaa sidoo kale ah 65gbit / s. Waxay sidoo kale adeegsataa tikniyoolajiyadda WDM, iyo mawjadaha waaweyn ee xargaha kor ku xusan iyo xambaarkooda indhaha ee ugu hooseeya ee ka hooseeya waa 1270NM iyo 1577Nm, siday u kala horreeyaan.
Qiyaasta kor u qaadista ee kordhay awgeed, inbadan oo laga soo saaro ayaa loo kala qaybin karaa iyadoo loo eegayo isla qaabkii xogta, oo leh ugu badnaan masaafada ugu badan ee 20km. In kasta oo xgpon aan weli si weyn loo korsaday weli, waxay siisaa dariiqa kor u qaadista wadiiqoolka wanaagsan ee hawl wadeenada isgaarsiinta indhaha.
EPON waxay si buuxda ula jaan qaadayaan heerarka kale ee Ethernet, sidaa darteed looma baahna in la beddelo ama la xakameeyo marka lagu xidho shabakadaha ku saleysan Ethernet, oo leh culeyskiisu yahay 1518 baruur. EPon uma baahna habka Helitaanka CSMA / CD ee noocyada qaarkood ee Ethernet. Intaa waxaa sii dheer, maadaama gudbinta EtherNe ay tahay habka ugu weyn ee gudbinta shabakadda ee shabakadda deegaanka, looma baahna in la beddelo shabakadda shabakadda ee shabakadda inta lagu gudajiro isku-xirnaanta shabakadda deegaanka.
Waxa kale oo jira nooc 10 gtri / s ah oo loogu talagalay nooca ethernet ah oo loogu talagalay 802.3AV. Xawaaraha xariiqda dhabta ahi waa 10.3125 grits / s. Qaabka ugu weyn waa 10 gbits / s fromplinks / s heer hoose, oo leh xoogaa adeegsanaya 10 gbits / s Sentlink iyo 1 Gitlink-ka.
Nooca Git / S ayaa adeegsanaya hirarkii ugu lugeeya indhaha ee fiber, oo leh mawjad hoos udhac ah oo ah 1575-1580nm iyo mawjad saqaf ah oo ah 1260-1280m. Sidaa darteed, nidaamka 10-ka ee Git / S ee Nidaamka 1Garbit / s Nidaamka ayaa noqon kara mowqif badan oo isku mid ah fiber isku mid ah.
Saddex-geesood isku-dhafan
Isku-darka sedex shabakad ayaa ka dhigan in geedi socodka isbeddelka shabakadda isgaarsiinta, shabakadda raadiyaha iyo shabakadda ee isku xirka, iyo in lagu siiyo adeegsiyo, oo ay ku siin karaan isticmaaleyaasha, xog-ururinta, iyo telefishanka, raadiyaha iyo adeegyada kale. Saddex-geesood miduhu macnaheedu maahan is dhexgalka jirka ee saddexda shabakadood ee waaweyn, laakiin badanaa waxaa loola jeedaa furitaanka codsiyada ganacsiga heerka-sare ah.
Is dhexgalka seddexda shabakadood ayaa si weyn loogu isticmaalaa qaybo kala duwan sida galka caqliga leh, ilaalinta deegaanka, shaqada dowladda, amniga dadweynaha, iyo guryaha aaminka ah. Mustaqbalka, taleefannada gacanta ayaa daawan kara telefishanka oo internetka, TV-ga ayaa wicitaan taleefan ku sameyn kara isla markaana internetka, oo internetka ah, kombuyuutarrada ayaa sidoo kale sameyn kara wicitaan taleefan oo ay daawadaan telefishanka.
Is dhexgalka seddexda shabakadood ayaa lagala falqaadan karaa fikradaha kala duwan ee aragtiyaha kala duwan iyo heerarka, is dhexgalka tikniyoolajiyada, is dhexgalka ganacsiga, is dhexgalka warshadaha, is dhexgalka bulshada, iyo is dhexgalka shabakadda.
Teknolojiyadda ballaaran
Jirka ugu weyn ee tikniyoolajiyadda ballaaran waa tikniyoolajiyadda isgaarsiinta fiber optic optic. Mid ka mid ah ujeeddooyinka isku-darka shabakadda ayaa ah in la bixiyo adeegyo mideysan oo loo maro shabakad. Si loo bixiyo adeegyo mideysan, waxaa lagama maarmaan ah in la helo shabakad shabakad oo taageeri kara gudbinta adeegyada kaladuwan ee kala duwan (saxaafadda ee isku-darka ah) sida maqalka iyo fiidiyowga.
Astaamaha ganacsiyadan ayaa ah baahi ganacsi oo sarreeya, mugga xog ballaaran, iyo shuruudaha tayada tayada sare, sidaa darteed waxay guud ahaan u baahan yihiin xayndaab aad u weyn inta lagu guda jiro gudbinta. Intaas waxaa sii dheer, aragti dhaqaale, qiimaha waa inuusan noqon mid aad u sarreeya. Sidan, tikniyoolajiyadda isgaarsiinta fiber ee optic-ka ee is-waafajinta filitaanka ee optic-ka Horumarinta tikniyoolajiyadda ballaaran, gaar ahaan tikniyoolajiyadda isgaarsiinta indhaha ee lagama maarmaanka u ah, tayada gudbinta, iyo qiimaha jaban ee gudbinta macluumaadka ganacsi ee kala duwan.
Iyada oo ah tikniyoolajiyadda tiir ee galka wada xiriirka casriga ah, tikniyoolajiyadda isgaarsiinta indhaha ayaa ku soo koraya sicirka 100 jeer koritaanka 10 sano ee kasta. Gudbinta Fiber Optic-ka oo awood weyn leh waa ku habboon ee gudbinta ugu habboon ee loogu talagalay "Saddexda shabakadood" iyo sidaha jirka ee ugu weyn ee wadada weyn ee macluumaadka mustaqbalka. Tiknolojiyadda isgaarsiinta fiber-ka ee 'fiber optic' ayaa si ballaaran loogu dabaqay shabakadaha isgaarsiinta, shabakadaha kumbuyuutarka, iyo shabakadaha telefishanka.
Waqtiga Post: Dec - 12-2024