What is ONU

Lydiazhu 15 views 3 slides Feb 23, 2023

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An optical network unit (ONU) is used on the user side and designed to meet the requirements of the broadband access network. It provides high-speed internet access, voice, IPTV/CATV, and Wi-Fi service. This article provides some knowledge about ONU.

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Anopticalnetworkunit(ONU)isusedontheusersideanddesignedtomeettherequirementsofthe
broadbandaccessnetwork.Itprovideshigh-speedinternetaccess,voice,IPTV/CATV,andWi-Fiservice.
ThisarticleprovidessomeknowledgeaboutONU.
WhatisONU?
ONUistheopticalterminaldeviceintheEPON(ethernetpassiveopticalnetwork)fiberaccess
network,whichprovidesuserswithmultipleserviceinterfaces.ThenetworksideofONUisthe
opticalinterface(PONport,SCadapter),andtheusersideistheelectricalinterface(RJ45,CATV
female).

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AnONUisdividedintoanactiveopticalnetworkunitandapassiveopticalnetworkunit.The
activeopticalnetworkunitONUismainlyusedintheintegrationofthethreenetworks.Passive
opticalnetworkunitONUisauser-sidedeviceofaGEPON(gigabitpassiveopticalnetwork)
systemandisusedtoterminateaservicetransmittedfromanOLTthroughanEPON(passive
opticalnetwork).
HowDoesONUWork?
AnONUconvertsopticalsignalstoelectricalsignalsviaafiberopticcable.AnONUorganizesand
optimizesdifferenttypesofdatacomingfromcustomerstoefficientlysenditupstreamtothe
opticallineterminal(OLT).
FeaturesandBenefits
ONUprovidesdualmode,plug-and-play,auto-detecting,auto-configuration,autofirmware
upgrade,supports802.11nWiFi(2T2R)function,richQinQVLANfunctions,NAT,firewallfunction,
IPv4andIPv6dualstack.Inaddition,ONUprovidesahighbandwidth,highreliability,high

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flexibility,lowcost,andeasymanagement.
Applications
ONUisusedinFTTHaccessnetworks,telecommunicationnetworks,localareanetworks(LAN),
datacenters,etc.
Conclusion
ONUprovideshigh-performanceforwardingcapabilitiestoensureanexcellentexperiencewith
VoIP,Internet,andHDvideoservices.ONUprovideshighbandwidth,highflexibility,highstability,
andhighqualityofservice(QoS).SunTelecomspecializesinprovidingone-stoptotalfiberoptic
solutionsforallfiberopticapplicationindustriesworldwide.Contactusifanyneeds.