1. Te rerekētanga i waenga i ngā tuku whakawhiti muka whatu aratau-kotahi me te aratau-maha
Ko te diameter matua o te muka maha-aratau he 50 ~ 62.5μm, ko te diameter o waho o te hipoki he 125μm, ko te diameter matua o te muka aratau-kotahi he 8.3μm, ā, ko te diameter o waho o te hipoki he 125μm. Ko ngā roangaru mahi o ngā muka whatu he 0.85 μm mō ngā roangaru poto, 1.31 μm me te 1.55 μm mō ngā roangaru roa. Ko te ngaronga muka ka heke i te nuinga o te wā me te roangaru, ko te ngaronga o te 0.85μm he 2.5dB/km, ko te ngaronga o te 1.31μm he 0.35dB/km, ā, ko te ngaronga o te 1.55μm he 0.20dB/km, koinei te ngaronga iti rawa o te muka, ko te roangaru o te 1.65. Ko ngā ngaronga i runga ake i te μm ka piki haere. Nā te pānga mimiti o te OHˉ, kei te awhe o te 0.90~1.30μm me te 1.34~1.52μm ngā tihi ngaronga, ā, kāore anō kia tino whakamahia ēnei awhe e rua. Mai i te tekau tau atu i 1980, ko ngā muka aratau-kotahi te nuinga o te wā e whakamahia ana, ā, ko te roanga ngaru roa o te 1.31 μm te tuatahi i whakamahia.
muka maha-aratau
Muka Aratau Maha: He matotoru ake te matua karāhe o waenganui (50, 62.5μm rānei), ka taea te tuku mārama i ngā momo maha. Engari he nui tōna horapa i waenga i ngā momo, ka whakawhāiti i te auau o te tuku tohu matihiko, ā, ka nui ake te kino ina piki haere te tawhiti. Hei tauira: Ko te whānui o te muka 600MB/KM he 300MB anake i te 2KM. Nō reira, he poto noa te tawhiti o te tuku muka aratau maha, he torutoru kiromita noa iho te nuinga.
muka aratau kotahi
Muka Aratau Kotahi (Muka Aratau Kotahi): He tino angiangi te matua karāhe o waenganui (ko te whānui o te matua he 9, he 10 μm rānei te nuinga), ā, kotahi anake te aratau mārama ka taea te tuku. Nō reira, he iti rawa tōna mararatanga whakawhiti-a-roto, he mea e tika ana mō te whakawhitiwhiti tawhiti, engari kei reira anō hoki te mararatanga rauemi me te mararatanga arataki ngaru, nō reira he nui ake ngā whakaritenga mō te whānui me te pumau o te pūtake mārama o te muka aratau kotahi, arā, me whaiti, me pumau te whānui. Kia pai. I muri mai, i kitea i te roanga ngaru o te 1.31 μm, he pai, he kino hoki te mararatanga rauemi me te mararatanga arataki ngaru o te muka aratau kotahi, ā, he rite tonu ngā rahi. Ko te tikanga o tēnei i te roanga ngaru o te 1.31 μm, ko te mararatanga katoa o te muka aratau kotahi he kore. Mai i ngā āhuatanga ngaronga o te muka, ko te 1.31μm he matapihi ngaronga iti noa iho o te muka. Nō reira, kua noho te rohe roangaru 1.31μm hei matapihi mahi tino pai mō te whakawhitiwhiti muka whatu, ā, koinei hoki te roopu mahi matua o ngā pūnaha whakawhitiwhiti muka whatu whai hua. Ko ngā tawhā matua o te muka aratau-kotahi 1.31μm tuku iho e whakatauhia ana e te International Telecommunication Union ITU-T i roto i te taunakitanga a G652, nō reira ka kiia hoki tēnei muka he muka G652.
Kei te hangaia ngā hangarau aratau-kotahi me te aratau-maha i te wā kotahi? He pono rānei ko tēhea te mea matatau ake, ko tēhea te mea maha te mea matatau ake? I te nuinga o te wā, ka whakamahia te aratau-maha mō ngā tawhiti poto, ā, ko te aratau-kotahi anake te mea e whakamahia ana mō ngā tawhiti tawhiti, nā te mea he iti ake te utu mō te tuku me te whiwhi muka aratau-maha i te aratau kotahi.
Ka whakamahia te muka aratau-kotahi mō te tuku raraunga tawhiti, ā, ka whakamahia te muka aratau-maha mō te tuku raraunga o roto. Ka taea anake te whakamahi i te aratau-kotahi mō te tawhiti, engari kāore e tika ana kia whakamahia te aratau-maha mō te tuku raraunga o roto.
Ahakoa he muka whatu aratau-kotahi, he muka maha-aratau rānei ngā muka whatu e whakamahia ana i roto i ngā tūmau me ngā taputapu rokiroki. He maha ā rātou e whakamahi ana i te aratau-maha, nā te mea he muka whatu whakawhitiwhiti kōrero anake taku e mahi ana, ā, kāore au i te tino mārama ki tēnei take.
Me whakamahi takirua ngā muka whatu, ā, he taputapu anō kei reira pērā i ngā kaitahuri tohu muka aratau-kotahi kotahi-pōhatu?
Me whakamahi takirua te muka whatu? Ae, i te haurua tuarua o te pātai, kei te hiahia koe ki te tuku me te whiwhi mārama i runga i te muka whatu kotahi? Ka taea tēnei. Koinei te whatunga muka whatu tuara 1600G a China Telecom.
Ko te rerekētanga matua i waenga i ngā tuku whakawhiti muka whatu aratau-kotahi me ngā tuku whakawhiti muka whatu aratau-maha ko te tawhiti tuku. Ko te tuku whakawhiti muka whatu aratau-maha he tuku tohu maha-pūnga me te maha-tauranga i roto i te aratau mahi, nō reira he poto noa te tuku tawhiti tohu, engari he watea ake, ā, kāore e hiahiatia te whakamahi i te hanganga o te ipurangi ā-rohe. Ko te muka kotahi he tuku pūnga kotahi, nō reira he pai mō te tuku i ngā raina matua tawhiti-roa, ā, koinei te hanganga o te whatunga rohe-tāone nui.
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2. Me pēhea te wehewehe i ngā whakawhiti muka whatu aratau-kotahi me te aratau-maha
I ētahi wā, me whakaū tātou i te momo o te taputapu whakawhiti muka whatu, nō reira me pēhea te whakatau mēnā he aratau kotahi, he aratau maha rānei te taputapu whakawhiti muka whatu?
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1. Wehewehea mai i te pane pakira, momotuhia te taupoki puehu pane pakira muka whatu, ka tirohia te tae o ngā wāhanga atanga i roto i te pane pakira. Ko te taha o roto o ngā atanga TX me RX aratau-kotahi kua pania ki te uku ma, ā, he parauri te atanga aratau-maha.
2. Wehewehea mai i te tauira: tirohia whānuitia mēnā he S me he M kei roto i te tauira, ko te tikanga o te S he aratau kotahi, ko te tikanga o te M he aratau maha.
3. Mena kua tāutahia, ā, kua whakamahia, ka kitea te tae o te peke muka, he maha-aratau te karaka, he kotahi-aratau te kōwhai.
Wā tuku: Hepetema-01-2022