ONU (Optical Network Unit) Optical network unit, ONU ua vaevaeina i le vaega o feso'ota'iga opitika galue ma le iunite feso'ota'iga opitika passive.E masani lava, o meafaigaluega ua fa'apipi'iina i mea fa'apipi'i mata'itusi, fa'asalalauga fa'apipi'i uplink, ma le tele o alalaupapa mo le mata'ituina o feso'otaiga e ta'ua o le node opitika.O le PON e faʻaaogaina se fiber opitika se tasi e faʻafesoʻotaʻi i le OLT, ona faʻafesoʻotaʻi lea o le OLT i le ONU.ONU o loʻo tuʻuina atu auaunaga e pei o faʻamatalaga, IPTV (Interactive Internet TV), leo (faʻaaogaina le IAD, Integrated Access Device), ma iloa moni "taʻi tolu-taʻaloga" talosaga.
I le aotelega, o masini ONU e mafai ona fa'avasegaina e tusa ai ma fa'aaliga fa'aoga eseese e pei ole SFU, HGU, SBU, MDU, ma le MTU.
1. SFU ituaiga ONU deployment
O le lelei o lenei auala faʻapipiʻi o le tele o punaoa o fesoʻotaʻiga, ma e talafeagai mo aiga tutoʻatasi i le FTTH scenario.E mafai ona fa'amautinoaina o lo'o i ai i le tagata fa'aoga le fa'aogaina o feso'ota'iga alalaupapa, ae e le aofia ai galuega lavelave ole faitoto'a ile fale.O le SFU i lenei si'osi'omaga e lua ituaiga masani: tu'uina atu uma Ethernet ports ma POTS ports;ma tuʻuina atu naʻo Ethernet ports.E tatau ona maitauina o le SFU i ituaiga uma e lua e mafai ona tuʻuina atu galuega faʻapipiʻi coaxial e faʻafaigofie ai le faʻataunuʻuina o auaunaga CATV, ma e mafai foi ona faʻaogaina i faitotoa o fale e faafaigofie ai le tuʻuina atu o auaunaga faʻaopoopo tau.O lenei faʻataʻitaʻiga e faʻaoga foi i pisinisi e le manaʻomia le fesuiaʻiina o faʻamatalaga TDM
2. HGU ituaiga ONU deployment
Ole ta'iala ole fa'apipi'iina ole ituaiga ole HGU ole ONU e tutusa ma le ituaiga SFU, se'i vagana ai o galuega a le ONU ma le RG o lo'o tu'ufa'atasia i meafaigaluega.Faʻatusatusa i le SFU, e mafai ona iloa sili atu le lavelave pulega ma galuega tau pulega.I lenei faʻataʻitaʻiga faʻataʻitaʻiga, o le U-foliga faʻapipiʻi ua fausia i totonu o le masini faʻapitoa ma e le tuʻuina atu se atinaʻe.Afai e manaʻomia meafaigaluega xDSLRG, e tele ituaiga fesoʻotaʻiga e mafai ona faʻafesoʻotaʻi saʻo i le fesoʻotaʻiga fale, lea e tutusa ma se faitotoa o le fale ma se EPON uplink interface.Fa'aoga i taimi FTTH.
3. SBU ituaiga ONU deployment
O lenei fofo faʻapipiʻiina e sili atu ona talafeagai mo le fausiaina o fesoʻotaʻiga o tagata faʻaoga tutoʻatasi i le faʻaogaina o le FTTO, ma o se suiga tau atinaʻe e faʻavae i luga o le SFU ma le HGU faʻataʻitaʻiga faʻataʻitaʻiga.O le fesoʻotaʻiga i lalo o lenei siosiomaga faʻapipiʻiina e mafai ona lagolagoina le faʻaogaina o fesoʻotaʻiga telefoni feaveaʻi ma tuʻuina atu i tagata faʻaoga le tele o fesoʻotaʻiga faʻamatalaga e aofia ai le El interface, Ethernet interface, ma le POTS interface, lea e mafai ona fetaui ma manaʻoga o atinaʻe i fesoʻotaʻiga faʻamatalaga, fesoʻotaʻiga leo, ma le TDM tumaoti auaunaga laina.Fa'aoga mana'oga.O le U-foliga faʻaoga i totonu o le siosiomaga e mafai ona tuʻuina atu pisinisi i se fausaga faʻavaa ma uiga eseese, ma o le galuega e matua malosi lava.
4. MDU ituaiga ONU deployment
O lenei fofo faʻapipiʻi e talafeagai mo le fausiaina o fesoʻotaʻiga i lalo ole tele-faʻaogaina auala e pei ole tele-tagata faʻaoga FTTC, FTTN, FTTCab, ma FTTZ.Afai e le manaʻomia e le aufaipisinisi-tulaga auaunaga TDM, e mafai foi ona faʻaogaina lenei fofo mo le faʻaogaina o fesoʻotaʻiga EPON.O lenei polokalame fa'apipi'i e mafai ona tu'uina atu ai le tele o tagata fa'aoga i feso'ota'iga feso'ota'iga feso'ota'iga feso'ota'iga e aofia ai auaunaga Ethernet/IP, auaunaga VoIP, ma auaunaga CATV ma isi auala e tele-au'aunaga, ma o lo'o i ai le malosi o fa'asalalauga fa'amatalaga.E mafai ona fa'atusa uma ona ports feso'ota'iga ma se tagata fa'aoga feso'ota'iga, o lea pe a fa'atusatusa, e maualuga atu lona fa'aogaina o feso'otaiga.
5. MTU ituaiga ONU deployment
O lenei fofo faʻapipiʻiina o se suiga faʻapisinisi e faʻavae i luga o le MDU deployment solution.E mafai ona tu'uina atu ai le tele o pisinisi fa'aoga i le tele o feso'ota'iga feso'ota'iga e aofia ai feso'ota'iga Ethernet ma feso'ota'iga POTS, ma e mafai ona fa'afeiloa'i auaunaga eseese e pei o le leo, fa'amaumauga, ma le TDM lisi lisi auaunaga a pisinisi.mana'omia.Afai e faʻaogaina le faʻatulagaina o le faʻatulagaina o le slot-type, e mafai ona faʻataunuʻuina galuega faʻapisinisi sili atu ma sili atu ona mamana.
Taimi meli: Iul-20-2023