Cibiyar sadarwa ta gani ita ce hanyar sadarwa wacce ke amfani da haske azaman hanyar watsawa, maimakon wayoyi na tagulla, kuma ana amfani da ita don shiga kowane gida.Cibiyar sadarwa ta hanyar gani.Cibiyar sadarwa ta hanyar gani gabaɗaya ta ƙunshi sassa uku: OLT layin gani na gani, naúrar cibiyar sadarwa ta gani ONU, cibiyar rarrabawar gani ODN, daga cikinsu OLT da ONU sune ainihin abubuwan cibiyar sadarwar samun damar gani.
Menene OLT?
Cikakken sunan OLT shine Tashar Layin Layin gani, tashar layin gani.OLT tashar tashar layin gani ce da kayan aikin ofishi na tsakiya na sadarwa.Ana amfani dashi don haɗa layin gangar jikin fiber na gani.Yana aiki azaman mai sauyawa ko na'ura mai ba da hanya tsakanin hanyoyin sadarwa a cibiyar sadarwar gargajiya.Na'ura ce a ƙofar cibiyar sadarwa ta waje da kuma ƙofar cibiyar sadarwa ta ciki.An sanya shi a babban ofishi, mafi mahimmancin ayyukan zartarwa sune tsarin zirga-zirgar ababen hawa, sarrafa buffer, da samar da mu'amalar hanyoyin sadarwa na gani na gani mai dacewa da mai amfani da rarraba bandwidth.Don sanya shi a sauƙaƙe, don cimma ayyuka biyu ne.Don na sama, yana kammala samun damar hanyar sadarwa ta PON;na ƙasa, ana aika bayanan da aka samu kuma ana rarraba su zuwa duk na'urorin tashar masu amfani da ONU ta hanyar hanyar sadarwar ODN.
Menene ONU?
ONU Unit ne na cibiyar sadarwa na gani.ONU yana da ayyuka guda biyu: yana zaɓar watsa shirye-shiryen da OLT ya aiko, kuma yana amsawa ga OLT idan ana buƙatar karɓar bayanan;tattara da adana bayanan Ethernet wanda mai amfani ke buƙatar aikawa, kuma ya aika zuwa OLT bisa ga taga aikawa da aka sanya Aika bayanan da aka adana.
A cikin hanyar sadarwa ta FTTx, hanyoyin samun damar ONU daban-daban kuma sun bambanta, kamar FTTC (Fiber To The Curb): Ana sanya ONU a cikin tsakiyar ɗakin kwamfuta na al'umma;FTTB (Fiber Zuwa Ginin): Ana sanya ONU a cikin corridor FTTH (Fiber To The Home): Ana sanya ONU a cikin mai amfani da gida.
Menene ONT?
ONT ita ce tashar tashar sadarwa ta Optical, mafi girman rukunin FTTH, wanda aka fi sani da “modem optical”, wanda yayi kama da modem na xDSL na lantarki.ONT tashar tashar sadarwa ce ta gani, wacce ake amfani da ita ga mai amfani da ƙarshen, yayin da ONU ke nufin rukunin cibiyar sadarwa na gani, kuma ana iya samun wasu hanyoyin sadarwa tsakaninta da mai amfani da ƙarshe.ONT wani bangare ne na ONU.
Menene alakar ONU da OLT?
OLT ita ce tashar gudanarwa, kuma ONU ita ce tasha;Ana ba da kunna kunna sabis na ONU ta hanyar OLT, kuma su biyun suna cikin dangantakar maigida da bawa.Ana iya haɗa ONU da yawa zuwa OLT ɗaya ta hanyar tsaga.
Menene ODN?
ODN shine Cibiyar Rarraba Rarrabawar gani, cibiyar sadarwa ta rarraba gani, ita ce tashar watsawar gani ta zahiri tsakanin OLT da ONU, babban aikin shine don kammala watsa hanyoyin biyu na siginar gani, yawanci ta igiyoyin fiber na gani, masu haɗin gani, masu rarraba gani da shigarwa zuwa haɗa waɗannan Abubuwan da ke cikin kayan aikin tallafi na na'urar, mafi mahimmancin bangaren shine mai raba gani.
Lokacin aikawa: Oktoba-15-2021