Ko te OLT he tauranga raina whatu, ko te ONU he wae whatunga whatu (ONU), he taputapu hononga whatunga tuku whatu katoa.E rua nga waahanga e tika ana i roto i te PON: PON (Passive Optical Whatunga: whatunga whatu hāngū).PON (whatunga whatu hāngū) e pā ana ki (whatunga tohatoha whatu) kahore he taputapu hiko, me te supply mana hiko, tito ODN te o ngā pūrere hāngū pērā i whati splitter (Splitter), e kore e rapu utu taputapu hiko kaha.Kei roto i te whatunga whatu hāngū he kāpeka raina whatu (OLT) i whakauruhia ki te teihana whakahaere pokapū, me te roopu o nga wae whatunga whatu (ONU) tautoko i te pae kaiwhakamahi.Kei roto i te whatunga tohatoha whatu (ODN) i waenga i te OLT me te ONU nga muka whatu me nga whakawehe hāngū, hononga hono ranei.
Ko nga pouara me nga whakawhiti he taputapu whakawhiti raraunga.
Ko te ODN (Optical Distribution Network) he whatunga taura whatu FTTH i runga i nga taputapu PON.Ko tana mahi he whakarato hongere tuku whatu i waenga i te OLT me te ONU.Mai i te tirohanga mahi, ka taea te wehea te ODN ki nga wahanga e wha: ko te punaha taura whatu kai whangai, ko te tohatoha o nga punaha taura whatu, ko te taura o roto o te taura taura whatu me te punaha kapeka muka whatu mai i te pito o te tari ki te mutunga o te kaiwhakamahi.
Ko te ONT tetahi waahanga nui o te ONU.
FTTB “te muka whatu ki te whare”, 16 ONU ka whakanohoia ki roto i te pouaka wae i te kauhanga.E 16 nga ONT kei roto i te ONU.Ka whakaputahia e ia ONT he taura whatunga (tohu hiko) ka tae ki ia pito kaiwhakamahi ma te taura whatunga i te kauhanga.
FTTH “fiber-to-the-home”, hoatu he wehenga 1 ki te 16 ki roto i te pouaka wae i roto i te kauhanga, ka tae ki ia kaiwhakamahi ma te muka hipoki i te kauhanga, ka whakamutua e ia kaiwhakamahi he ONT.He rite ki te wetewete i te ONU, kia tata tonu nga taputapu kapeka ki te kaiwhakamahi.
Ka taea te mohio ko ONT he ONU me te tauranga kotahi anake.