I roto i ngā hoahoanga FTTx me PON, he nui haere te mahi a te wehewehe whatu ki te waihanga i ngā whatunga whatu miro maha-ira. Engari e mōhio ana koe he aha te wehewehe muka whatu? Inaa, he taputapu whatu kore mahi te wehewehe muka whatu ka taea te wehewehe i te hihi mārama e pā ana ki ngā hihi mārama e rua, neke atu rānei. Ko te tikanga, e rua ngā momo wehewehe muka e whakarōpūtia ana e tā rātou kaupapa mahi: te wehewehe taper biconical fused (FBT splitter) me te wehewehe ara iahiko ngaru mārama papatahi (PLC splitter). Tērā pea he pātai āu: he aha te rerekētanga i waenganui i a rāua, ā, me whakamahi tātou i te wehewehe FBT, PLC rānei?
He aha te meaWāwāhi FBT?
Ko te whakawehewehe FBT e hangai ana ki te hangarau tuku iho, he momoĀtaahuaPāwhiri Whatunga, e uru ana ki te hanumitanga o ētahi muka mai i te taha o ia muka. Ka whakaritea ngā muka mā te whakamahana i a rātou ki tētahi wāhi me te roa motuhake. Nā te ngoikore o ngā muka kua hanumi, ka tiakina rātou e tētahi ngongo karāhe i hangaia ki te paura epoxy me te silica. Muri iho, ka hipokina te ngongo karāhe o roto e tētahi ngongo kowiri tira, ā, ka hiritia ki te silicon. I te whanaketanga tonu o te hangarau, kua tino pai ake te kounga o ngā wehewehe FBT, ā, he otinga utu-pai. Kei te ripanga e whai ake nei ngā painga me ngā ngoikoretanga o ngā wehewehe FBT.
| Ngā Painga | Ngā ngoikoretanga |
|---|---|
| Whai hua te utu | Ngaronga Whakaurunga Teitei Ake |
| He iti ake te utu mō te hanga | Ka pā ki te mahi whānui o te pūnaha |
| Rahi Kiato | Te Whakawhirinakitanga ki te Roanga Ngaru |
| He māmā ake te tāutanga i ngā wāhi kuiti | Ka rerekē pea te mahi puta noa i ngā roangaru |
| Ngāwari | Te Whakawhanuitanga Iti |
| Te tukanga hanga māmā | He uaua ake te whakawhanui mō ngā putanga maha |
| Ngāwari ki te Wehewehe i ngā Tauwehenga | Mahi Tino Pono |
| Ka taea te hoahoa mō ngā ōwehenga rerekē | Kāore pea e whakarato i te mahi pumau |
| He pai te mahi mō ngā tawhiti poto | Te aro ki te pāmahana |
| He whai hua i roto i ngā tono tawhiti poto | Ka pāngia te mahi e ngā huringa pāmahana |
He aha te meaWāwāhi PLC?
Ko te wehewehe PLC e hangai ana ki te hangarau ara iahiko ngaru mārama papatahi, he momoĀtaahuaPāwhiri WhatungaE toru ngā paparanga: he papa, he arataki ngaru, me te taupoki. He mahi nui tā te arataki ngaru i roto i te tukanga wehewehe e āhei ai te tuku i ngā ōrau mārama motuhake. Nō reira ka taea te wehewehe ōrite i te tohu. Hei tāpiri, kei te wātea ngā wehewehe PLC i roto i ngā ōwehenga wehewehe, tae atu ki te 1:4, 1:8, 1:16, 1:32, 1:64, me ētahi atu. He maha hoki ngā momo, pērā i te wehewehe PLC tahanga, te wehewehe PLC kore poraka, te wehewehe PLC fanout, te wehewehe PLC momo mono-mai iti, me ētahi atu. Ka taea hoki e koe te tirotiro i te tuhinga E hia ngā mea e mōhio ana koe mō te wehewehe PLC? mō ētahi atu kōrero mō te wehewehe PLC. Kei te ripanga e whai ake nei ngā painga me ngā ngoikoretanga o te wehewehe PLC.
| Ngā Painga | Ngā ngoikoretanga |
|---|---|
| Ngaronga Whakaurunga Iti | Te utu teitei ake |
| He iti ake te ngaronga tohu i te nuinga o te wā | Ko te tikanga he nui ake te utu ki te hanga |
| Te Mahi Whānui o te Roangaru | Rahi Nui Ake |
| Ka mahi tonu puta noa i ngā roangaru maha | He nui ake te rahi i ngā wehewehenga FBT |
| Te Pono Teitei | Tukanga Hanga Uaua |
| Ka whakarato i te mahi pumau mō ngā tawhiti roa | He uaua ake te hanga ki te whakataurite ki ngā wehewehe FBT |
| Ngā ōwehenga wehewehe ngāwari | Te Uauatanga o te Tatūnga Tuatahi |
| Kei te wātea i roto i ngā whirihoranga rerekē (hei tauira, 1xN) | Tērā pea me tino tupato te tāutanga me te whirihoranga |
| Te Pūmautanga o te Pāmahana | Te ngoikore pea |
| He pai ake te mahi puta noa i ngā rerekētanga pāmahana | He tairongo ake ki te kino tinana |
Te Wehewehe FBT me te Wehewehe PLC: He aha ngā Rerekētanga?(Kia mōhio atu ai mōHe aha te rerekētanga i waenga i te Passive Network Tap me te Active Network Tap?)
1. Roangaru Whakahaere
E toru noa ngā roangaru e tautokona ana e te wehewehe FBT: 850nm, 1310nm, me te 1550nm, ā, kāore e taea te mahi i runga i ētahi atu roangaru. Ka taea e te wehewehe PLC te tautoko i ngā roangaru mai i te 1260 ki te 1650nm. Mā te whānuitanga o te roangaru ka taea te whakarerekē ka pai ai te wehewehe PLC mō ngā tono maha atu.
2. Te Ōwehenga Wehewehe
Ko te ōwehenga wehewehe ka whakatauhia e ngā tāuru me ngā putanga o te wehewehe taura whatu. Ko te ōwehenga wehewehe mōrahi o te wehewehe FBT he 1:32, ko te tikanga ka taea te wehewehe i te kotahi, i te rua rānei o ngā tāuru ki te putanga mōrahi o te 32 muka i te wā kotahi. Heoi, ko te ōwehenga wehewehe o te wehewehe PLC he 1:64 - kotahi, e rua rānei ngā tāuru me te putanga mōrahi o te 64 muka. Haunga, ka taea te whakarite i te wehewehe FBT, ā, ko ngā momo motuhake ko te 1:3, 1:7, 1:11, me ētahi atu. Engari kāore e taea te whakarite i te wehewehe PLC, ā, he putanga paerewa anake pērā i te 1:2, 1:4, 1:8, 1:16, 1:32, me ētahi atu.
3. Te Wehewehe i te Whakaōrite
Kāore e taea te wehewehe ōrite i te tohu e tukatukahia ana e ngā kaiwehewehe FBT nā te korenga o te whakahaere i ngā tohu, nō reira ka pāngia pea tōna tawhiti tuku. Heoi, ka taea e te kaiwehewehe PLC te tautoko i ngā ōwehenga kaiwehewehe ōrite mō ngā peka katoa, ka taea ai te whakarite i tētahi tuku whatu pumau ake.
4. Te Auau o te Rahunga
Ko te wehewehe FBT te mea e whakamahia ana mō ngā whatunga e hiahia ana kia iti iho i te 4 ngā wehewehenga o te wehewehe. Ko te nui ake o te wehewehenga, ko te nui ake o te tere rahunga. Ina nui ake tōna ōwehenga wehewehe i te 1:8, ka nui ake ngā hapa ka puta, ā, ka nui ake te tere rahunga. Nō reira, ka herea ake te wehewehe FBT ki te maha o ngā wehewehenga i roto i te hononga kotahi. Engari he iti ake te tere rahunga o te wehewehe PLC.
5. Ngaronga e whakawhirinaki ana ki te pāmahana
I ētahi wāhi, ko te pāmahana te mea nui e pā ana ki te ngaronga whakaurunga o ngā wāhanga whatu. Ka taea e te wehewehe FBT te mahi pumau i raro i te pāmahana -5 ki te 75℃. Ka taea e te wehewehe PLC te mahi i te whānuitanga pāmahana whānui ake i waenganui i te -40 ki te 85℃, e whakarato ana i te mahi pai i ngā wāhi tino āhuarangi.
6. Utu
Nā te uaua o te hangarau hanga o te wehewehe PLC, he nui ake te utu i te wehewehe FBT. Mena he māmā noa iho tō tono, ā, he iti hoki ngā moni, ka taea e te wehewehe FBT te whakarato i tētahi otinga whai hua. Heoi anō, kei te whakawhāiti haere te rerekētanga utu i waenga i ngā momo wehewehe e rua i te mea kei te piki haere tonu te hiahia mō ngā wehewehe PLC.
7. Rahi
He nui ake, he matotoru ake hoki te hoahoa o ngā wehewehenga FBT i ngā wehewehenga PLC. He nui ake te wāhi e hiahiatia ana e rātou, ā, he pai ake mō ngā tono kāore te rahi e whakawhāiti. He iti te āhua o ngā wehewehenga PLC, e ngāwari ai te whakauru ki roto i ngā kete iti. He tino pai rātou mō ngā tono he iti te wāhi, tae atu ki ngā panera papaki o roto, ngā pito whatunga whatu rānei.
Wā tuku: Whiringa-ā-rangi 26-2024
