Video: GPON ONT yog dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
GPON sawv cev rau Gigabit Passive Optical Networks. GPON yog txhais los ntawm ITU-T kev pom zoo series G. 984.1through G. 984.6. GPON Lub network muaj xws li ob yam khoom siv hluav taws xob, uas yog- Optical Line Termination (OLT) thiab Optical Network Unit ( ONU ) lossis Optical Network Termination ( ONT ).
Ib yam li ntawd, tib neeg nug, GPON yog dab tsi thiab nws ua haujlwm li cas?
A GPON network muaj peev xwm ntawm transmittingethernet, TDM (Lub Sijhawm Division Multiplexing) nrog rau ATM tsheb. A GPON network tuaj yeem ncav cuag li 20 km thiab muab kev pabcuam txog 64 tus neeg siv kawg. GPON siv ob qho tib si ntws thiab downstreamdata los ntawm txoj kev ntawm Optical Wavelength Division Multiplexing (WDM).
Kuj Paub, qhov txawv ntawm OLT thiab ONT yog dab tsi? Yuav piav qhia yooj yim, OLT txhais tau tias Optical LineTerminal. ONU yog Optical Network Unit. ONT txhais tau tias OpticalNetwork Terminal. OLT siv fiber ntau cables, adapters thiab lwm yam txuas nrog ONU thiab ONT , txhawm rau tsim ODN (OpticalDistribution Network).
Cov lus nug tseem yog, ONT fiber ntau yog dab tsi?
ONT sawv rau Optical Network Terminal . Qhov ONT (tseem hu ua modem) txuas rau TerminationPoint (TP) nrog ib qho optical fiber ntau kab. Nws txuas rau koj lub router ntawm LAN / ethernet cable thiab txhais cov teeb liab ntawm lub teeb fiber ntau optic kab los ntawm koj TP rau hauv hluav taws xob signals tias koj lub router tuaj yeem nyeem tau.
GPON system yog dab tsi?
GPON sawv cev rau Gigabit Passive Optical Networks. GPON yog point-to-multi point access mechanism. Nws cov yam ntxwv tseem ceeb yog kev siv cov passive splitters hauv lub network fibredistribution, ua rau ib qho kev pub noj fiber ntau los ntawm tus muab kev pabcuam hauv nruab nrab los ua haujlwm rau ntau lub tsev thiab kev lag luam me.
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