Momwe mungasiyanitsire netiweki ya Optical access OLT, ONU, ODN, ONT?

Optical access network ndi njira yofikira yomwe imagwiritsa ntchito kuwala ngati njira yotumizira, m'malo mwa mawaya amkuwa, ndipo imagwiritsidwa ntchito kuti ifike kunyumba iliyonse.Optical access network.Optical access network nthawi zambiri imakhala ndi magawo atatu: optical line terminal OLT, optical network unit ONU, Optical distribution network ODN, yomwe OLT ndi ONU ndizo zigawo zikuluzikulu za optical access network.

Kodi OLT ndi chiyani?

Dzina lonse la OLT ndi Optical Line Terminal, optical line terminal.The OLT ndi optical line terminal ndi chapakati ofesi zida za telecommunication.Amagwiritsidwa ntchito kulumikiza mizere ya thunthu la optical fiber.Imagwira ntchito ngati chosinthira kapena rauta mu netiweki yolumikizirana yachikhalidwe.Ndi chipangizo pakhomo la intaneti yakunja ndi khomo la intaneti yamkati.Zoyikidwa pa ofesi yapakati, ntchito zofunika kwambiri zoyang'anira ndi kukonza magalimoto, kuwongolera ma buffer, ndikupereka mawonekedwe ogwiritsira ntchito passive optical network ndi kugawa kwa bandwidth.Kunena mwachidule, ndiko kukwaniritsa ntchito ziwiri.Kwa kumtunda, kumamaliza kumtunda kwa intaneti ya PON;kwa kutsika, zomwe zapezedwa zimatumizidwa ndikugawidwa kuzipangizo zonse za ONU zogwiritsa ntchito kudzera pa netiweki ya ODN.

Kodi ONU ndi chiyani?

ONU ndi Optical Network Unit.ONU ili ndi ntchito ziwiri: imalandira mwapadera mauthenga otumizidwa ndi OLT, ndikuyankha OLT ngati deta ikufunika kulandiridwa;imasonkhanitsa ndikusunga deta ya Efaneti yomwe wogwiritsa ntchito akufunika kutumiza, ndikuitumiza ku OLT malinga ndi zenera lotumiziridwa Tumizani deta yosungidwa.

Mu maukonde a FTTx, njira zosiyana zotumizira za ONU ndizosiyananso, monga FTTC (Fiber To The Curb): ONU imayikidwa mu chipinda chapakati cha makompyuta cha anthu ammudzi;FTTB (Fiber To The Building): ONU imayikidwa mukhonde FTTH (Fiber To The Home): ONU imayikidwa mwa wogwiritsa ntchito kunyumba.

Kodi ONT ndi chiyani?

ONT ndi Optical Network Terminal, gawo lalikulu kwambiri la FTTH, lomwe limadziwika kuti "optical modem", yomwe ndi yofanana ndi modemu yamagetsi ya xDSL.ONT ndi optical network terminal, yomwe imagwiritsidwa ntchito kwa wogwiritsa ntchito kumapeto, pomwe ONU imatanthawuza gawo la optical network, ndipo pakhoza kukhala maukonde ena pakati pake ndi wogwiritsa ntchito.ONT ndi gawo lofunikira la ONU.

Kodi pali ubale wotani pakati pa ONU ndi OLT?

OLT ndi malo oyang'anira, ndipo ONU ndi terminal;kutsegulira kwa ntchito kwa ONU kumaperekedwa kudzera mu OLT, ndipo awiriwa ali paubwenzi wa mbuye ndi akapolo.Ma ONU angapo amatha kulumikizidwa ku OLT imodzi kudzera pa chogawa.

Kodi ODN ndi chiyani?

ODN ndi Optical Distribution Network, kuwala kugawa maukonde, ndi kuwala kufala kufala thupi njira pakati OLT ndi ONU, ntchito yaikulu ndi kukwaniritsa njira ziwiri kufala kwa zizindikiro kuwala, kawirikawiri ndi zingwe kuwala CHIKWANGWANI, zolumikizira kuwala, ziboda kuwala ndi unsembe kuti. gwirizanitsani izi Chigawo cha chipangizo chothandizira zipangizo, gawo lofunika kwambiri ndilo gawo la kuwala.