一,Ka'idar daukar hoto
Themai karɓa na ganiwani muhimmin bangare ne na tsarin sadarwa na fiber na gani.Asalin ka'idarsa shine canza siginar gani zuwa siginar lantarki.Babban abubuwan da ke cikin mai karɓar gani sun haɗa da na'urar gano hoto, abin da ake kira preamplifier da mai ɗaukar hoto.Lokacin da aka aika siginar gani zuwa na'urar gano hoto ta hanyar fiber na gani, mai gano hoton yana canza siginar gani zuwa siginar lantarki, sannan a kara karfin siginar a tace ta cikin na'urar tantancewa, sannan a kara sarrafa shi kuma ana watsa ta ta hanyar postamplifier.
二,Ayyukan photoreceptor
1. Canza sigina na gani zuwa siginar lantarki:Babban aikin mai karɓa na gani shine canza siginar gani da ake watsawa zuwa siginar lantarki don sauƙaƙe sarrafa sigina da watsawa na gaba.Ana yin hakan ne ta hanyar amfani da na'urar gano hoto, wanda ke gano siginar rauni mara ƙarfi kuma ya canza su zuwa siginar lantarki.
2. Ƙara sigina:Tun da ƙarfin siginar gani zai yi rauni a hankali yayin aikin watsa fiber na gani, ƙarfin siginar na iya zama mai rauni sosai lokacin da ya isa mai karɓar gani.Na'urar riga-kafi a cikin na'urar gani na gani na iya haɓaka waɗannan siginoni masu rauni ta yadda za'a iya sarrafa su da watsa su.
3. Tace sigina:Yayin aikin watsa fiber na gani, ana iya gabatar da kararraki da tsangwama iri-iri, wanda zai shafi ingancin siginar.Preamplifier a cikin mai karɓar gani yawanci sanye take da tacewa don cire waɗannan surutu da tsangwama da haɓaka ingancin siginar.
4. sarrafa sigina:Na'urar bayan amplifier na iya ƙara sarrafa siginar lantarki, kamar rarrabuwa, lalatawa, da sauransu, ta yadda za a iya mayar da ita zuwa ainihin siginar dijital ko analog.Bugu da kari, ta hanyar na'ura mai kwakwalwa, ana iya daidaita siginar lantarki da ingantawa, kamar daidaita girman girman, mita da sauran sigogin siginar, ta yadda zai iya biyan bukatun tsarin sadarwa na gaba.
5. Fitar da siginonin lantarki:Ana iya fitar da siginar lantarki da aka sarrafa zuwa wasu na'urori ko tsarin don cimma watsa bayanai da rabawa.Misali, a cikin tsarin sadarwar fiber na gani, ana iya watsa siginar lantarki da na'urar daukar hoto ta sarrafa su zuwa kwamfutoci, masu sauyawa ko wasu kayan sadarwa.
三,Gabatarwa zuwa CEITATECH FTTH mai karɓar gani na gani
1.FTTH Mai karɓa na gani (CT-2001C)Dubawa
Wannan samfurin shine mai karɓar gani na FTTH.Yana ɗaukar ƙaramin ƙarfin gani na gani da fasahar AGC mai sarrafa gani don saduwa da buƙatun fiber-to-the-gida.Yi amfani da shigarwar gani na wasa sau uku, sarrafa kwanciyar hankali ta siginar ta AGC, tare da WDM, 1100-1620nm CATV canjin siginar hoto da shirin fitarwa na USB na TV.
Samfurin yana da halaye na ƙaƙƙarfan tsari, shigarwa mai dacewa da ƙananan farashi.Yana da manufa samfur don gina USB TV FTTH cibiyar sadarwa.
Mai karɓa na gani na FTTH(CT-2001C)
l Harsashi filastik mai inganci tare da ƙimar wuta mai kyau.
l RF tashar cikakken GaAs ƙananan ƙararrawar ƙararrawa.Mafi ƙarancin karɓar siginar dijital shine -18dBm, kuma mafi ƙarancin karɓar siginar analog shine -15dBm.
l AGC iko kewayon shine -2 ~ -14dBm, kuma fitarwa ba ta canzawa.(Za a iya keɓance kewayon AGC bisa ga mai amfani).
l Ƙarƙashin ƙira mai amfani da wutar lantarki, ta yin amfani da wutar lantarki mai mahimmanci mai mahimmanci don tabbatar da babban aminci da kwanciyar hankali na wutar lantarki.Yawan wutar lantarki na injin gabaɗaya bai wuce 3W ba, tare da kewayar gano haske.
l WDM da aka gina, gane ƙofar fiber guda ɗaya (1100-1620nm) aikace-aikacen.
l SC/APC da SC/UPC ko FC/APC mai haɗin gani na gani, awo ko inch RF interface na zaɓi.
l Yanayin samar da wutar lantarki na tashar shigarwar 12V DC.
1.1Tsarin tsari
2.FTTH Mai karɓa na gani (CT-2002C)Dubawa
Wannan samfurin shine mai karɓa na gani na FTTH, ta yin amfani da ƙananan ƙarfin karɓar ƙarfin gani da fasaha na AGC mai sarrafawa, wanda zai iya biyan bukatun fiber-to-the-gida, kuma za'a iya amfani dashi tare da ONU ko EOC don cimma nasara sau uku.Akwai WDM, 1550nm CATV siginar photoelectric hira da RF fitarwa, 1490/1310 nm PON sigina kai tsaye wucewa, wanda zai iya saduwa da FTTH daya Tantancewar fiber watsa CATV + EPON.
Samfurin yana da ƙarfi a cikin tsari kuma yana da sauƙin shigarwa, kuma samfuri ne mai kyau don gina cibiyar sadarwar FTTH TV ta USB.
FTTH Mai karɓa na gani (CT-2002C)
l Harsashi filastik mai inganci tare da ƙimar wuta mai kyau.
l RF tashar cikakken GaAs ƙananan ƙararrawar ƙararrawa.Mafi ƙarancin karɓar siginar dijital shine -18dBm, kuma mafi ƙarancin karɓar siginar analog shine -15dBm.
l AGC iko kewayon shine -2 ~ -12dBm, kuma fitarwa ba ta canzawa.(AGC
Ana iya keɓance kewayon bisa ga mai amfani).
l Ƙarƙashin ƙira mai amfani da wutar lantarki, ta yin amfani da wutar lantarki mai mahimmanci mai mahimmanci don tabbatar da babban aminci da kwanciyar hankali na wutar lantarki.Yawan wutar lantarki na injin gabaɗaya bai wuce 3W ba, tare da kewayar gano haske.
l WDM ginannen, gane ƙofar fiber guda ɗaya (1490/1310/1550nm) aikace-aikacen wasa sau uku.
l SC/APC ko FC/APC mai haɗin gani na gani, awo ko inch RF interface na zaɓi.
l Yanayin samar da wutar lantarki na tashar shigarwar 12V DC.
2.2Tsarin tsari
Lokacin aikawa: Janairu-13-2024
