I roto i ngā whatunga PON (Whatunga Whatu Āhuakore), inā koa i roto i ngā āhua matatini o te PON ODN (Whatunga Tohatoha Whatu) pūwāhi-ki-maha, he nui ngā wero mō te aroturuki tere me te tautuhi i ngā hapa muka. Ahakoa he taputapu whānuitia te whakamahi i ngā ine whakaata rohe wā whatu (OTDR), i ētahi wā kāore i te rawaka te aro ki te kite i te whakaiti tohu i roto i ngā muka peka ODN, i ngā pito muka ONU rānei. Ko te tāuta i tētahi whakaata muka whiriwhiri-roaroa iti te utu ki te taha ONU he mahi noa e taea ai te ine tika i te whakaiti o ngā hononga whatu.
Ka mahi te whakaata muka mā te whakamahi i tētahi whatu muka whatu hei whakaata i te pāoro whakamātautau OTDR me te tata ki te 100% whakaata. I taua wā, ka haere te roangaru mahi noa o te pūnaha whatunga whatu kore mahi (PON) mā te whakaata me te iti o te whakaiti nā te mea kāore e tutuki i te tikanga Bragg o te whatu muka. Ko te mahi matua o tēnei huarahi ko te tatau tika i te uara ngaronga whakahoki o ia huihuinga whakaata o te peka whakamutunga ONU mā te kite i te aroaro me te kaha o te tohu whakamātautau OTDR whakaata. Mā tēnei ka taea te whakatau mēnā kei te mahi tika te hononga whatu i waenga i te taha OLT me te ONU. Nō reira, ka tutuki te aroturuki wā-tūturu o ngā pūwāhi hapa me te tātaritanga tere, tika hoki.
Mā te whakamahi ngāwari i ngā whakaata hei tautuhi i ngā wāhanga ODN rerekē, ka taea te tere o te kimi, te kimi i te rohe, me te tātari i te pūtake o ngā hapa ODN, ka whakaiti i te wā whakatau hapa me te whakapai ake i te pai o te whakamātautau me te kounga tiaki raina. I roto i te horopaki wehewehe tuatahi, ko ngā whakaata muka kua tāutahia ki te taha ONU e tohu ana i ngā raruraru ina whakaatu te whakaata o te peka i te nui ake o te ngaronga hokinga mai ki tōna turanga hauora. Mena ka whakaatu ngā peka muka katoa kua whakauruhia ki ngā whakaata i te ngaronga hokinga nui i te wā kotahi, he tohu tēnei kei roto i te muka matua.
I roto i tētahi horopaki wehewehe tuarua, ka taea hoki te whakarite i te rerekētanga o te ngaronga whakahokinga hei tohu tika mēnā ka puta ngā hapa whakaiti i roto i te wāhanga muka tohatoha, i te wāhanga muka taka rānei. Ahakoa i roto i ngā horopaki wehewehe tuatahi, tuarua rānei, nā te hekenga ohorere o ngā tihi whakaata i te mutunga o te pihi whakamātautau OTDR, kāore pea e taea te ine tika i te uara ngaronga whakahokinga o te hononga peka roa rawa atu i roto i te whatunga ODN. Nō reira, me ine ngā huringa o te taumata whakaata o te whakaata hei pūtake mō te ine me te tautuhi hapa.
Ka taea hoki te whakatakoto i ngā whakaata muka whatu ki ngā wāhi e hiahiatia ana. Hei tauira, mā te tāuta i tētahi FBG i mua i ngā wāhi urunga muka-ki-te-Kāinga (FTTH) me te muka-ki-te-Hanga (FTTB), kātahi ka whakamātautau ki tētahi OTDR, ka taea te whakataurite i ngā raraunga whakamātautau ki ngā raraunga turanga hei tautuhi i ngā hapa muka o roto/o waho, o roto/o waho rānei o te whare.
Ka taea te whakanoho raupapa i ngā whakaata muka whatu ki te pito kaiwhakamahi. Ko te roa o te ora, te pono pumau, ngā āhuatanga pāmahana iti, me te hanganga hononga urutau ngāwari ētahi o ngā take he kōwhiringa pai rawa atu ēnei mō te aroturuki hononga whatunga FTTx. Kei a Yiyuantong ngā whakaata muka whatu FBG i roto i ngā momo takai, tae atu ki ngā ringaringa anga kirihou, ngā ringaringa anga whakarewa, me ngā āhua hiku poaka me ngā hononga SC, LC rānei.
Wā tuku: Hepetema-11-2025