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    Kedu ihe netwọk anya na-arụ ọrụ (AON) na passive (PON)?

    Oge nzipu: Jul-28-2020

    Kedu ihe bụ AON?

    AON bụ netwọk ngwa anya na-arụsi ọrụ ike, na-ejikarị ụkpụrụ netwọọdụ ebe-na-ebe (PTP), onye ọrụ ọ bụla nwere ike ịnwe eriri eriri anya raara onwe ya nye. Netwọk ngwa anya na-arụ ọrụ na-ezo aka na ntinye nkerawụta, ndị na-agbanwe agbanwe, ngwa ngwa anya na-arụ ọrụ na ihe ndị ọzọ na-agbanwe n'etiti akụrụngwa ụlọ ọrụ etiti na nkeji nkesa onye ọrụ n'oge nnyefe mgbaàmà. A na-eji ọkụ eletrik na-ebugharị ihe ọkụ ọkụ ndị a iji jikwaa nkesa mgbaàmà na akara ntụziaka maka ndị ahịa kpọmkwem. Ngwa ngwa anya na-arụ ọrụ gụnyere isi ọkụ (laser), onye na-anata anya, modul transceiver optical, amplifier anya (amplifier fiber na semiconductor optical amplifier).

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    Kedu ihe bụ PON?

    PON bụ netwọọdụ nyocha anya na-agafe agafe, nhazi netwọkụ isi-na-multipoint, yana teknụzụ bụ isi maka FTTB/FTTH. Netwọk anya na-agafe agafe na-ezo aka na ODN (netwọk nkesa ngwa anya) na-eji naanị eriri anya na ihe ndị na-agafe agafe, ọ dịkwa mkpa iji ngwa ndụ na isi iyi mgbama na njedebe nnata. N'ime usoro PON a na-ahụkarị, ihe nkesa anya bụ isi, a na-ejikwa ihe nkesa anya na-ekewa ma na-anakọta akara ngosi anya na-ebufe site na netwọk. Nkewa ndị a maka PON bụ akụkụ abụọ. N'akụkụ mgbada ala, ọtụtụ ọrụ dị ka data IP, olu na vidiyo na-ekesaOLTdị na etiti ụlọ ọrụ na ọnọdụ mgbasa ozi site na 1: N passive optical splitter na ODN Nye ndị niile.ONUnkeji na PON; na mgbago elu, ọtụtụ ozi ọrụ sitere na nke ọ bụlaONUEjikọtara ya na otu eriri anya site na 1: N pasive optical mixer na ODN na-etinyeghị aka n'etiti onwe ya, ma mesịa ziga ya naOLTn'ụlọ ọrụ etiti maka njedebe nnabata.

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    Netwọk ngwa anya na-agafe agafe gụnyere ọdụ ọdụ ahịrị anya (OLT) arụnyere n'ọdụ ụgbọ okporo ígwè etiti, yana otu nkeji netwọk anya dakọtara (ONU) arụnyere na saịtị onye ọrụ. Netwọk nkesa anya (ODN) n'etitiOLTna nkeONUnwere eriri anya na ihe nkesa na-agafe agafe ma ọ bụ ihe jikọtara ya. E kewara PON n'ụkpụrụ teknụzụ atọ: APON (ATM PON) dabere na ATM, EPON dabere na Ethernet (Ethernet PON), na GPON (Gigabit PON) dabere na General Frame Protocol.

    Na netwọk AON, onye ọrụ nwere eriri eriri anya raara onwe ya nye, nke dị mfe maka mmezi netwọk ọzọ, mgbasawanye ikike, nkwalite netwọk, wdg. Tụkwasị na nke ahụ, netwọk AON na-ekpuchi ọtụtụ ihe dị ka 100 kilomita; netwọk PON na-ejikarị eriri fiber optic ruo kilomita iri abụọ. AON na-eduzi akara ngosi anya site na ngwaọrụ ndị na-arụ ọrụ, na PON na-eji ngwaọrụ ndị na-agafe agafe na-enweghị ike, nke na-ebute ọnụ ahịa dị elu maka ntinye netwọk AON karịa PON.



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