Site na mmepe nke obodo ọgbara ọhụrụ kwupụta multi-functionalization, nhazi obodo na-aghọwanye mgbagwoju anya, na e nwere ọtụtụ narị narị, narị otu narị, ma ọ bụ ọbụna ọtụtụ puku ebe nlekota ala.Iji hụ na ngalaba na-arụ ọrụ nwere ike ịghọta ezigbo oge, ihe ngosi vidiyo doro anya na nke dị elu ozugbo enwere ike, gosi esemokwu nke akụrụngwa fiber optic.Ọzọkwa, n'ime ọrụ obodo mepere emepe na-esiwanye ike na mgbagwoju anya taa, itinyeghachi eriri fiber-optic abụghị naanị ọnụ ahịa dị oke ọnụ, mana nhazi n'etiti ndị otu niile na-esikwa ike karị.N'ihi nke a, otu esi edozi nsogbu ndị dị n'elu?
N'ezie, otu nsogbu ahụ nwetara n'iwu FTTH (Fiber to the Home) site n'aka ndị na-ahụ maka mgbasa ozi.Iji dozie nsogbu a, nye egwuregwu zuru oke na uru bandwidth nke eriri anya, dozie ụkọ akụrụngwa fiber optic, ma melite ntụkwasị obi nke netwọkụ, ndị na-ahụ maka nkwukọrịta ahọrọla teknụzụ PON (passive optical network).Enwere ike itinye teknụzụ a na nlekota netwọk nchekwa.
PON (PassiveOpticalNetwork) bụ netwọk ngwa anya na-agafe agafe.Netwọk ngwa anya na-agafe agafe na-agụnye ọdụ eriri anya (OLT) arụnyere n'ọdụ ụgbọ mmiri etiti, yana nhazi nke nkeji netwọk anya anya (ONU) arụnyere n'ime ụlọ onye ọrụ.Netwọk nkesa anya (ODN) n'etiti OLT na ONU nwere eriri anya na ihe nkesa ngwa anya na-agafe agafe ma ọ bụ ndị mmekọ.
Netwọk anya na-agafe agafe enweghị ngwaọrụ ọ bụla na-arụ ọrụ site na etiti gaa na netwọk ndị bi.Kama nke ahụ, a na-etinye ngwa ngwa ngwa anya n'ime netwọk ahụ ma na-eduzi okporo ụzọ a na-ebufe site na ikewapụ ike nke ogologo wavelength anya n'akụkụ ụzọ ahụ dum.Ndochi a na-ewepụ mkpa ọ dị ndị ọrụ ịnye ma jikwaa ngwaọrụ na-arụ ọrụ n'ime loop nnyefe, nke na-echekwa ụgwọ ọrụ onye ọrụ nke ukwuu.Ndị na-ekesa ngwa anya na-agafe agafe na ndị na-emekọ ihe na-arụ ọrụ naanị na-ebufe na ịmachi ọkụ, adịghị mkpa ọkụ ọkụ na nhazi ozi, ma nwee oge na-enweghị njedebe n'etiti ọdịda, nke nwere ike ibelata ụgwọ ọrụ nlekọta n'ụzọ niile.
Uru nke teknụzụ PON na-egosipụta nke ọma n'akụkụ ndị a:
1. Netwọk ịnweta eriri anya bụ ihe ngwọta kachasị mma maka mmepe n'ọdịnihu, karịsịa nkà na ụzụ PON egosila na ọ bụ ụzọ dị oke ọnụ ahịa na ịnweta brọdband jikọtara ugbu a.
2. N'ihi iji teknụzụ PON, netwọk nkesa nkesa anya dum na-agafe agafe, na netwọk anya na-agafe agafe dị ntakịrị na nha ma dị mfe na akụrụngwa.Tụnyere netwọk eriri ọla kọpa, PON nwere ike ibelata mmezi na ụgwọ ọrụ, wee zere nnyonye anya elektrọnik na nnyonye anya ọkụ.
3. The passive ONU (optical network unit) nke PON adịghị mkpa ike ọkọnọ, nke ọ bụghị nanị na-ewepụ a usoro nke nsogbu nke ike ọkọnọ, ma nweekwa ntụkwasị obi ka mma karịa na-arụ ọrụ akụrụngwa.
4. N'ihi na a na-eji ihe ndị na-eme ihe na-eme ihe na-emepụta ihe na-ekerịta ihe ntanetị anya, ego ntinye ego nke netwọk anya dum dị ala.
5. PON na-apụta ìhè na usoro nnyefe ejiri ruo n'ókè ụfọdụ, ọ dịkwa mfe ịkwalite.
Teknụzụ PON abụrụla nhọrọ mbụ nke ụlọ ọrụ maka fiber-to-the-home (FTTH).Teknụzụ PON na-eji topology point-to-multipoint, yana downlink na uplink na-ebufe data site na TDM na TDMA n'otu n'otu.Ebe dị n'etiti OLT na ONU nwere ike iru 20km, ọnụego nnyefe bụ 1Gbps symmetrical, na oke nkewa kachasị na-akwado 1:32 ma ọ bụ karịa.Enwere ike kewaa ya n'otu ọkwa ma ọ bụ ọtụtụ nkewa na cascade.
Iji teknụzụ PON nwere ike dozie bandwidth nlekota netwọkụ na oke anya.A na-etinye ngwá ọrụ OLT dị n'akụkụ ụlọ ọrụ n'ime ụlọ ọrụ dị n'akụkụ ụlọ ọrụ.A na-eji nkewa anya ọtụtụ ọkwa dị iche iche iji ghọta ngbanwe nke ntinye isi.A na-eji igwefoto netwọk ONU + dị ka nchikota ọnụ.ONU nwere ike ịbụ ngbanwe PoE nwere ọrụ PON.Gaa n'ọnụ ụlọ nlekota ndị ahịa na ihe nkesa nchekwa.Enwere ike nyochaa ya n'ime ụlọ nlekota n'oge na-adịghị anya, a na-ezigakwa data vidiyo na ihe nkesa nchekwa n'otu oge ahụ, nke na-eme ka nchịkọta ihe àmà mgbe eziokwu gasịrị.
Taa, "ọganihu anya na mwepụ ọla kọpa", ngwa ngwa nke teknụzụ PON dị oke mkpa.Fengrunda weputara akụrụngwa OLT na ONU, yana ịkwado ihe nchekwa nchekwa PON, wee bu ụzọ wepụta mgbanwe PoE na ọrụ PON, nke mebere oghere nke ONU na-enweghị PoE n'ahịa ugbu a.Sistemụ nleba anya vidiyo dịpụrụ adịpụ site na iji teknụzụ PON na-edozi nsogbu nke isi ihe nleba anya dị mgbagwoju anya yana akụrụngwa eriri siri ike na obodo ọgbara ọhụrụ.Ọ nwere uru na-enweghị atụ n'ọtụtụ akụkụ dị ka nhazi netwọkụ, akụrụngwa fiber, ogo vidiyo, na ntụkwasị obi.Mmepe nke ọrụ nlekota vidiyo dịpụrụ adịpụ nke azụmahịa na-enye ngwọta netwọk kacha mma.