I-ONU(iyunithi yenethiwekhi yokukhanya) i-optical node.I-ONU yohlulwe kwiyunithi esebenzayo yenethiwekhi ye-optical network kunye nelayibrari ye-passive optical network unit.Ngokubanzi, izixhobo ezixhotyiswe ngokujongwa kwenethiwekhi kubandakanya i-optical receiver, i-uplink optical transmitter kunye ne-multiple bridge amplifiers ibizwa ngokuba yi-optical node.

Umsebenzi we-ONU

1. Khetha ukufumana idatha yosasazo ethunyelwe yiOLT;
2. Phendula kuluhlu kunye nemiyalelo yolawulo lwamandla ekhutshwe yiOLT;kunye nokwenza uhlengahlengiso oluhambelanayo;
3. Cache idatha ye-Ethernet yomsebenzisi kwaye uyithumele phezulu kwifestile yokuthumela eyabiwe yiOLT.

Izixhobo ze-ONU

Ukuthobela ngokupheleleyo IEEE 802.3/802.3ah

·Ukufumana ubuntununtunu ukuya kuthi ga -25.5dBm

·Dlulisa amandla ukuya kuthi ga ku -1 ukuya +4dBm

·I-PON isebenzisa i-fiber eyodwa yamehlo ukudibanisa kwi-OLT, kwaye emva kokoOLTidibanisa kwi ONU.I-ONU ibonelela ngeenkonzo ezifana nedatha, i-IPTV (okt. inethiwekhi yonxibelelwano kamabonakude), ilizwi (usebenzisa i-IAD, oko kukuthi iDivayisi yokuFikelela eDityanisiweyo) kunye nezinye iinkonzo, ukuqonda ngokwenene usetyenziso lwe-"play-triple"

·Ixabiso eliphezulu le-PON: i-symmetrical 1Gb / s idatha ephezulu kunye nesezantsi, ilizwi leVoIP kunye neenkonzo zevidiyo ze-IP

·I-ONU"Plag kunye nokuDlala" ngokusekwe ekufumaneni okuzenzekelayo kunye noqwalaselo

·Umgangatho ophezulu wenkonzo (QoS) imisebenzi esekelwe kwisivumelwano somgangatho wenkonzo (SLA) ukubiza

·Izakhono zolawulo olukude ezixhaswa yimisebenzi etyebileyo nenamandla ye-OAM

·Ukufumana ukukhanya okunovakalelo oluphezulu kunye nokusetyenziswa kombane wokukhanya okuphantsi

·Inkxaso Dying Gasp umsebenzi