ONU(optical network unit) Optical node.ONU imagawidwa kukhala yogwira ntchito optical network unit ndi library passive optical network unit.Kawirikawiri, zida zokhala ndi network monitoring kuphatikiza optical receiver, uplink optical transmitter ndi multiple bridge amplifiers zimatchedwa optical node.

Ntchito ya ONU

1. Sankhani kulandira deta yowulutsa yotumizidwa ndi aOLT;
2. Yankhani malamulo oyambira ndi owongolera mphamvu operekedwa ndi OLT;ndi kukonza zofananira;
3. Sungani deta ya Ethernet ya wogwiritsa ntchito ndikuitumiza kumtunda pawindo lotumizira loperekedwa ndi OLT.

Zida za ONU

Tsatirani kwathunthu IEEE 802.3/802.3ah

·Kulandila kukhudzika mpaka -25.5dBm

·Tumizani mphamvu mpaka -1 mpaka +4dBm

·PON amagwiritsa ntchito chingwe chimodzi cha kuwala kuti agwirizane ndi OLT, ndiyenoOLTzimagwirizana ndi ONU.ONU imapereka ntchito monga data, IPTV (mwachitsanzo, kanema wawayilesi wapaintaneti), mawu (pogwiritsa ntchito IAD, mwachitsanzo, Integrated Access Device) ndi ntchito zina, kuzindikira "sewero-katatu"

·Mtengo wapamwamba kwambiri wa PON: symmetrical 1Gb/s kumtunda ndi kumunsi kwa data, mawu a VoIP ndi makanema a IP

·ONU"Pulagi ndi Sewerani" kutengera zodziwikiratu ndi kasinthidwe

·Advanced quality of service (QoS) ntchito kutengera pa service level agreement (SLA) kulipiritsa

·Kuthekera koyang'anira kutali komwe kumathandizidwa ndi ntchito zolemera komanso zamphamvu za OAM

·Kulandira kuwala kwamphamvu kwambiri komanso kugwiritsa ntchito mphamvu zochepa

·Thandizani ntchito ya Dying Gasp