Ka ọ dị ugbu a, n'ihe gbasara teknụzụ netwọkụ fiber optic access, a na-eji nwayọọ nwayọọ dochie ohere ịnweta eriri narrowband site na ịnweta brọdband, na-emecha nweta ụlọ fiber. The brọdband ngwa anya eriri nke ohere netwọk na-aghọ ihe a na-apụghị izere ezere, na PON technology ga-aghọ teknụzụ hotspot nke brọdband ohere netwọk n'ọdịnihu n'ihi na multi-ọrụ, obere ego na mmezi mfe.
Kedu ihe bụ netwọk ịnweta eriri?
Netwọk ịnweta eriri anya na-ezo aka na netwọk ohere nke mgbasa ozi bụ eriri anya. Enwere ike kewaa netwọkụ eriri anya n'ụzọ teknụzụ ụzọ abụọ: netwọkụ anya na-arụ ọrụ (AON, Active Optical Network) na netwọkụ anya na-agafe agafe (PON, Passive Optical Network).
Enwere ike kewaa netwọk anya na-arụ ọrụ n'ime AON dabere na SDH na AON dabere na PDH;
Enwere ike ikewa netwọkụ anya na-agafe agafe na PON dị warara na brọdband PON.
Kedu ọrụ netwọk nnweta na-arụ n'ịwube netwọk?
Netwọk ozi mejupụtara netwọkụ bụ isi, netwọk mpaghara mepere emepe, netwọk ohere, na netwọk ebe ndị ahịa. Netwọk nnweta dị na àkwà mmiri nke netwọkụ mpaghara mepere emepe / netwọk azụ.
Ka ọ dị ugbu a, sayensị na nkà na ụzụ na-aga n'ihu site n'ịwụli elu na njedebe, a na-emepụtakwa ọtụtụ faịlụ eletrọnịkị mgbe niile. Site na ijikọ ụwa ọnụ n'ụzọ akụ na ụba na mmụba nke mgbasa ozi ọha na eze, a na-agbasawanye ịntanetị n'ọtụtụ ebe, ọrụ data etoola nke ukwuu, na ụdị ọrụ nkwukọrịta gara n'ihu na-abawanye. Ụdị azụmahịa. Netwọk ohere dị warara abụrụla ihe mgbochi na-egbochi mmepe nke netwọkụ na brọdband. Ahịa netwọk ịnweta nwere nnukwu ikike, na teknụzụ ọhụrụ na-apụta mgbe niile iji gboo mkpa nke ndị ọrụ. Netwọk ịnweta bụ ihe na-elekwasị anya na isi na mmepe nke akụrụngwa ozi mba. Teknụzụ ịnweta netwọkụ aghọwo ebe a na-elekwasị anya na ntinye ego nke ụlọ ọrụ nyocha, ndị na-ere nkwurịta okwu, ụlọ ọrụ mgbasa ozi na ngalaba ọrụ.
Uru nke PON
1. Nwere ike ịnye brọdband transperent na ikike nnyefe dị ọnụ ala.
2. N'iji ya tụnyere netwọk ngwa anya na-arụ ọrụ, ntinye ya, ntinye ọrụ na ịrụ ọrụ na-akwụ ụgwọ dị ala, na usoro ahụ bụ nke a pụrụ ịdabere na ya ma kwụsie ike, ya mere netwọk ịnweta na-etinye ọnụ ọgụgụ buru ibu nke usoro PON.
3. N'ihi na PON na-anabata ọnọdụ ohere-na-multipoint, ọnụ ahịa akụrụngwa nke itinye eriri anya n'etiti ụlọ ọrụ etiti na ndị ọrụ na-ebu ndị ọrụ, nke nwere ike ịbawanye nlọghachi na ntinye ego na nrụpụta netwọkụ. E jiri ya tụnyere usoro nke ịhazi eriri anya nke njedebe na njedebe maka onye ọrụ ọ bụla, olu nke ngwá ọrụ PON na-eme ka ọrụ dịkwuo mma maka ọnụ ọgụgụ ndị ahịa dị ntakịrị ma na-ewe obere ohere na ụlọ ọrụ etiti.
4. PON na-akwado ma ọrụ ọdịnala (ọrụ ekwentị ọdịnala POTS, TV analog) na ọrụ brọdband (nfefe olu IP, IPTV, ohere ịntanetị brọdband, wdg).
5.PON na-akwado ndị ọrụ niile bi (iji POTS, analog TV na data data) na ọtụtụ ndị ọrụ azụmahịa (iji T1 / E1 na Ethernet ọrụ) kesaa netwọk ohere (gụnyere oyi akwa anụ ahụ na protocol Layer) na-enweghị iji ohere dị iche iche. Ịnweta netwọk na-enye ha ọrụ, si otú ahụ belata ọnụ ọgụgụ nke netwọk ohere gbasasịrị.