Na a dijitalụ oge nkewa multiplexing nkwurịta okwu usoro, iji n'ụzọ ziri ezi ikewa oge oghere n'ókè, na-ezipụ ọgwụgwụ ga-enye mmalite akara nke ọ bụla frame, na usoro nke ịchọpụta na inweta akara a na njedebe na-anata na-akpọ frame mmekọrịta.Enwere ụdị mmekọrịta etiti abụọ: mmalite-nkwụsị usoro mmekọrịta na fanye usoro otu koodu mmekọrịta pụrụ iche.
Ụzọ mmekọrịta mmalite-nkwụsị:Otu koodu n'onwe ya nwere ozi nchịkọta nke ya site na iji koodu mmebe koodu pụrụ iche na njedebe izipu.
Ịtinye usoro otu koodu mmekọrịta pụrụ iche:Ọ na-ezo aka n'itinye ọtụtụ koodu mmekọrịta maka mmekọrịta etiti n'usoro akara ebutere.
Enwere isi n'ụdị ntinye etiti etiti na ntinye etiti oge. Ntinye etiti etiti, nke a makwaara dị ka ntinye n'otu n'otu, chọrọ ka mmekọrita okpokolo agba pụrụ iche nwere ezigbo njirimara akpaaka. Otu koodu mmekọrịta etiti a na-ejikarị bụ koodu Barker. Ntinye etiti oge. Amarakwa dị ka ntinye ekesa, a na-ejikarị usoro cyclic dị mfe dị ka koodu mmekọrịta etiti, ma na-etinye ya n'otu n'otu na iyi koodu ozi.
Ihe kpatara oyi akwa njikọ data na-ejikọta ibe n'ime okpokolo agba ma na-ebufe ha bụ na mgbe njehie mere, ọ bụ naanị etiti nwere njehie nwere ike ibugharị ya, ọ dịghịkwa mkpa ịnyeghachi data niile, si otú a na-emeziwanye arụmọrụ. A na-agbakọkarị checksum maka etiti ọ bụla. Mgbe etiti rutere ebe a na-aga, a na-agbakọ checksum ọzọ, ma ọ bụrụ na ọ dị iche na checksum mbụ, enwere ike ịhụ njehie.
Nke a dị n'elu bụ nkọwa ihe ọmụma nke "OSI-Data Link Layer-Frame Synchronization Function" nke Shenzhen HDV photoelectric Technology Co., Ltd wetara. Ngwaahịa nkwurịta okwu nke ụlọ ọrụ na-emepụta:
Otu modul: ngwa anya eriri modul, Ethernet modul, ngwa anya eriri transceiver modul, ngwa anya eriri ohere modul, SSFP ngwa anya modul, naSFP ngwa anya eriri, wdg.
ONUudi: EPON ONU, AC ONU, eriri anya ONU, CATV ONU, GPON ONU, XPON ONU, wdg.
OLTklas: Mgbanwe OLT, Ọnụ ego nke GPON OLT, Ọnụ ego nke EPON OLT, nzikọrịta oziOLT, wdg.
Ngwaahịa modul dị n'elu nwere ike inye nkwado maka ọnọdụ netwọk dị iche iche. Otu ọkachamara na R & D siri ike nwere ike inyere ndị ahịa aka na nsogbu teknụzụ, na otu ndị ahịa na-eche echiche na ndị ọkachamara nwere ike inyere ndị ahịa aka inweta ọrụ dị elu n'oge ndụmọdụ tupu oge na ọrụ mmepụta ihe. Nabata gị kpọtụrụ anyị maka ụdị ajụjụ ọ bụla.
