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Kodi mungasiyanitse bwanji mwayi wamaintaneti OLT, ONU, ODN, ONT?

Network yolumikizira ndi netiweki yolumikizira yomwe imagwiritsa ntchito kuwala ngati njira yotumizira, m'malo mwa mawaya amkuwa, ndipo imagwiritsidwa ntchito kufikira banja lililonse. Kuwala kulumikiza. Ma network olumikizira ophatikizika amakhala ndi magawo atatu: kuwala kwa ma chingwe OLT, makina opangira mawonekedwe ONU, makina ogawira opangira ODN, omwe OLT ndi ONU ndizofunikira kwambiri pazowonera.

Kodi OLT ndi chiyani?

Dzina lathunthu la OLT ndi Optical Line Terminal, optical line terminal. OLT ndi malo opangira makina opangira ma telefoni. Amagwiritsidwa ntchito kulumikiza mizere yamagetsi yamagetsi. Imagwira ngati lophimba kapena rauta pamaneti yolumikizirana. Ndi chida pakhomo lolowera maukonde akunja komanso polowera maukonde amkati. Oyikidwa kuofesi yayikulu, ntchito zofunika kwambiri ndi kukonza magalimoto, kukonza buffer, ndi kupatsa ogwiritsa ntchito makina ochezera aukazitape osagwiritsidwa ntchito ndi magawikidwe a bandwidth. Kunena mwachidule, ndiko kukwaniritsa ntchito ziwiri. Kwa okwera kumtunda, imamaliza kufikira kumtunda kwa netiweki ya PON; ya kutsika, zomwe zapezeka zimatumizidwa ndikugawidwa kuzida zonse za ogwiritsa ntchito za ONU kudzera pa netiweki ya ODN.

Kodi ONU ndi chiyani?

ONU ndi Optical Network Unit. ONU ili ndi ntchito ziwiri: imangolandira mosakira wailesi yomwe imatumizidwa ndi OLT, ndipo imayankha OLT ngati zidziwitso ziyenera kulandiridwa; amatenga ndikusokoneza deta ya Ethernet yomwe wogwiritsa ntchitoyo amafunika kutumiza, ndikuitumiza kwa OLT malinga ndi zenera lomwe latumizidwa Tumizani zomwe zalembedwa.

Pa intaneti ya FTTx, njira zosiyanasiyana zopezera njira za ONU ndizosiyana, monga FTTC (Fiber To The Curb): ONU imayikidwa m'chipinda chapakatikati chamakompyuta; FTTB (Fiber To The Building): ONU imayikidwa mu FTTH (CHIKWANGWANI Kunyumba): ONU imayikidwa kwa wogwiritsa ntchito kunyumba.

Kodi ONT ndi chiyani?

ONT ndi Optical Network Terminal, unit of terminal kwambiri ya FTTH, yotchedwa "modem Optical", yomwe ikufanana ndi modem yamagetsi ya xDSL. ONT ndi malo opangira mawonekedwe, omwe amagwiritsidwa ntchito kwa ogwiritsa ntchito kumapeto, pomwe ONU amatanthauza makina opangira mawonekedwe, ndipo pakhoza kukhala ma netiweki ena pakati pake ndi wogwiritsa ntchito kumapeto. ONT ndi gawo limodzi la ONU.

Kodi pali ubale wotani pakati pa ONU ndi OLT?

OLT ndiye malo oyang'anira, ndipo ONU ndiye malo; ntchito yothandizira ONU imaperekedwa kudzera mu OLT, ndipo awiriwa ali pachibwenzi ndi akapolo. Ma ONU angapo amatha kulumikizidwa ndi OLT imodzi kudzera mwa ziboda.

Kodi ODN ndi chiyani?

ODN ndi Optical Distribution Network, network yogawa mawonekedwe, ndiye njira yolumikizira opatsirana pakati pa OLT ndi ONU, ntchito yayikulu ndikumaliza njira ziwiri zoperekera ma siginecha, makamaka ndi zingwe zamagetsi, zolumikizira, ma splitter opangira ndi kukhazikitsa kwa kulumikiza izi Chigawo cha zida zothandizira chipangizocho, chinthu chofunikira kwambiri ndikutambasula kwamawonekedwe.

How to distinguish optical access network OLT, ONU, ODN, ONT?


Post nthawi: Oct-15-2021