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    Menene hanyoyin sadarwa na gani masu aiki (AON) da m (PON)?

    Lokacin aikawa: Yuli-28-2020

    Menene AON?

    AON cibiyar sadarwa ce ta gani mai aiki, galibi tana ɗaukar tsarin gine-ginen cibiyar sadarwa na aya-zuwa-maki (PTP), kuma kowane mai amfani zai iya samun keɓaɓɓen layin fiber na gani. Cibiyar sadarwa na gani mai aiki tana nufin ƙaddamar dahanyoyin sadarwa, masu haɗawa masu sauyawa, kayan aiki na kayan aiki masu aiki da sauran kayan aiki masu sauyawa tsakanin kayan aiki na ofishin tsakiya da sassan rarraba masu amfani yayin watsa sigina. Wadannan na'urori masu sauyawa suna motsa su ta hanyar wutar lantarki don sarrafa rarraba sigina da sigina na jagora ga takamaiman abokan ciniki. Kayan aiki na gani mai aiki sun haɗa da tushen haske (laser), mai karɓar gani, module transceiver na gani, amplifier na gani (amplifier fiber da amplifier na gani na semiconductor).

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    Menene PON?

    PON ita ce hanyar sadarwa ta gani mai wucewa, tsarin cibiyar sadarwa mai ma'ana zuwa-multipoint, kuma ita ce babbar fasahar FTTB/FTTH. Cibiyar sadarwa mai wucewa tana nufin ODN (cibiyar rarraba gani na gani) kawai tana amfani da filaye na gani da abubuwan da ba za a iya amfani da su ba, kuma kawai yana buƙatar amfani da kayan aiki mai rai a tushen siginar da ƙarshen karɓar sigina. A cikin tsarin PON na yau da kullun, mai rarraba na gani shine ainihin, kuma ana amfani da mai raba na gani don rarrabewa da tattara siginar gani da ake watsa ta hanyar hanyar sadarwa. Waɗannan masu rarrabawa na PON suna bin hanya biyu ne. A cikin jagorar ƙasa, ayyuka da yawa kamar bayanan IP, murya, da bidiyo suna rarraba taOLTwanda yake a cikin babban ofishin a cikin yanayin watsa shirye-shirye ta hanyar 1: N m na gani mai rarrabawa a cikin ODN Zuwa dukONUraka'a akan PON; a cikin jagorar sama, bayanan sabis da yawa daga kowaneONUana haɗe shi da fiber na gani iri ɗaya ta hanyar 1:N m mai haɗawa na gani a cikin ODN ba tare da tsoma baki da juna ba, kuma a ƙarshe aika zuwa gaOLTa babban ofishin liyafar maraba.

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    Cibiyar sadarwa mai saurin gani ta haɗa da tashar tashar layin gani (OLT) shigar a tsakiyar tashar sarrafawa, da kuma rukuni na na'urorin cibiyar sadarwa na gani da suka dace (ONU) shigar a shafin mai amfani. Cibiyar rarrabawar gani (ODN) tsakaninOLTda kumaONUyana ƙunshe da filaye na gani da masu rarrabawa ko ma'aurata. PON ya kasu kashi uku na fasaha: APON na tushen ATM (ATM PON), Ethernet-based EPON (Ethernet PON), da GPON (Gigabit PON) dangane da Babban Tsarin Tsarin Mulki.

    A cikin hanyar sadarwa ta AON, mai amfani yana da keɓaɓɓen layin fiber na gani, wanda ke da sauƙi don kula da cibiyar sadarwa na gaba, haɓaka ƙarfin aiki, haɓaka cibiyar sadarwa, da sauransu. Bugu da ƙari, cibiyar sadarwar AON ta ƙunshi nau'i mai yawa na kusan kilomita 100; hanyar sadarwar PON yawanci tana iyakance ne ga igiyoyin fiber optic har zuwa kilomita 20. AON galibi yana jagorantar siginar gani ta hanyar na'urori masu aiki, kuma PON yana amfani da na'urori masu wucewa ba tare da samar da wutar lantarki ba, wanda ke haifar da ƙarin farashi don tura cibiyar sadarwa ta AON fiye da PON.



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