1, Optical modem shine siginar gani a cikin kayan siginar lantarki na Ethernet, modem na gani asalin ana kiransa modem, nau'in kayan aikin kwamfuta ne, yana cikin aika ƙarshen ta hanyar daidaita siginar dijital zuwa siginar analog, kuma a ƙarshen karɓar ta hanyar. lalata siginar analog zuwa siginar dijital na'ura.
Naúrar hanyar sadarwa ta gani (ONU) naúrar cibiyar sadarwa ce ta gani.An raba ONU zuwa raka'o'in cibiyar sadarwa na gani mai aiki da raka'o'in cibiyar sadarwar gani mara kyau.Ana amfani da ONU galibi don karɓar bayanan watsa shirye-shirye daga OLTs.Baya ga aikin cat mai haske, ONU kuma yana da aikin sauyawa.
2, Onu ya kasu zuwa a, b, c class, duk ukun su ne hanyar shiga ta gani, amma don samar wa masu amfani da adadin tashar jiragen ruwa, nau'ikan tashar jiragen ruwa sun bambanta, modem na gani a zahiri shine class onu.
Modem na gani, wanda kuma aka sani da cat na gani, na'urar sadarwa ce wacce ke watsa siginar gani zuwa wasu siginar yarjejeniya ta hanyar kafofin watsa labarai na fiber gani.Na'urar watsawa ce don babbar hanyar sadarwa ta gida (LAN), cibiyar sadarwa ta yankin birni (MAN), da cibiyar sadarwa mai fa'ida (WAN).Na'urar ta ƙunshi aikawa, karɓa, sarrafawa, dubawa, da wutar lantarki.Yana ɗaukar guntu haɗaɗɗun babban sikelin, kewayawa mai sauƙi, ƙarancin wutar lantarki, babban abin dogaro, cikakken yanayin ƙararrawa, da cikakkiyar aikin sarrafa cibiyar sadarwa.
Sadarwar fiber na gani ya haɓaka cikin sauri zuwa babban nau'in watsa bayanai saboda fa'idodinsa kamar faffadan mitar mitar da babban ƙarfi.Don fahimtar sadarwa ta gani, dole ne a aiwatar da daidaitawar gani da haɓaka.Saboda haka, a matsayin maɓalli na na'ura na tsarin sadarwa na fiber optic, modem na gani yana ƙara samun kulawa.Akwai nau'ikan modulator iri biyu: kai tsaye modulator da na waje na waje, da kuma na'urar tantancewa ta kasu kashi biyu: tare da ba tare da ginannun amplifier na gaba ba.Modulator kai tsaye da mai kunnawa tare da ginanniyar haɓakawa na gaba sune abin da aka mayar da hankali kan wannan aikin.Daidaitawa kai tsaye yana da fa'idodi na sauƙi, tattalin arziki da aiwatarwa mai sauƙi, yayin da demodulator tare da haɓakar haɓakawa na gaba yana da halaye na babban haɗin gwiwa da ƙananan girman.
Optical modem shine na'urar watsawa da ake iya haɗawa da Intanet tare da haɗin kebul na cibiyar sadarwa, kwatankwacin katar hasken Intanet ɗinmu, amma ƙarshen cat ɗin yana da alaƙa da kewayawa, kuma ƙarshen sama na modemis na gani yana haɗi. zuwa hanyar haske, don haka ana kiransa da kyan gani mai haske.Wani cat da aka haɗa da hanyar haske.Ƙarshen ƙarshen onu a cikin epon/GPON an haɗa shi da mai amfani.
1, Optical modem wani nau'in Onu ne, na mai amfani daya ne, modem na gani kuma ana iya cewa tebur ne.
2, babban onnu shine don ƙarin masu amfani, wato, tashar wutar lantarki tana da tashoshin pon 8 zuwa 24.Modem na gani yana da tashoshin lantarki 1-4 kawai.
Bambanci tsakanin modem na gani da ONU:
Ana amfani da modem na gani gabaɗaya lokacin manyan abokan ciniki, musamman don samun damar bayanai.
Nau'in katin modem na gani da tebur, nau'in katin gabaɗaya yana sanya ɗakin injin.
Yawancin lokaci ana sanya tebur akan abokin ciniki.Ana amfani da ONU don samun damar cibiyar sadarwar zama ta broadband.Babban bambanci shi ne daga hadedde dakin kati na gani cat zuwa abokin ciniki tebur Tantancewar cat, biyu na Tantancewar cats lissafin biyu na zaruruwa, kuma daga hadedde dakin OLT zuwa abokin ciniki mahara ONUs ma shagaltar kawai biyu na zaruruwa, da kuma tsakiyar yana tafiya ta hanyar tsagawa.Bambanci tsakanin modem na gani da ONU shine ONU tana adana albarkatun fiber core, kuma modem na gani yana da arha, kuma kuliyoyin haske guda biyu guda dari ne.Wane irin amfani ne, cikakken bincike na farashi, bisa ga halin da ake ciki.
Lokacin aikawa: Dec-14-2023