Tsarin gani shine mabuɗin kayan aikin kayan masarufi don gane haɗin yanar gizo na gani a cibiyar bayanai.Tare da karuwar lambar tashar tashar jiragen ruwa da yawa, farashin kayan aikin gani zai yi lissafin kusan rabin farashin cibiyar sadarwa na gani a cibiyar bayanai. A halin yanzu, an yi amfani da fasahar haɗin gwiwar 100G a cikin sababbin cibiyoyin bayanai na manyan kamfanonin Intanet. da kuma fasahar haɗin gwiwar 400G za a yi amfani da su sosai a cikin shekaru 1-2 na gaba. Saboda haka, fasahar aiwatarwa na 400G na gani na gani ya zama mayar da hankali ga masana'antu.
Dangane da tsayin igiyoyin haske, 400G na'urar haske za a iya raba zuwa Multi-mode (MM) da kuma guda-yanayin (SM) . Dangane da yanayin daidaitawar sigina, ana iya raba shi zuwa NRZ da PAM4 modulation (PAM4 shine babban abu). A halin yanzu). Dangane da nisan watsawa, 400G na gani na gani za a iya raba zuwa SR, DR, FR da LR.Daga nau'in marufi, 400G na gani na gani za a iya raba zuwa CDFP, CFP8, OSFP, qsfp-dd da sauransu.A ƙasa akwai rarrabuwar fasaha na 400G na gani na gani.
Na'urar gani ta farko ta 400G ta yi amfani da 16-tashar 25Gbps NRZ aiwatarwa (kamar 400g-sr16), ta amfani da fakitin CDFP ko CFP8.Amfanin NRZ shine cewa ana iya aro shi daga fasahar 25G NRZ mai balagagge akan 100G na gani na gani, amma rashin amfani shine cewa yana buƙatar tashoshi 16 na sigina don watsa layi ɗaya, tare da babban amfani da ƙarfi da ƙarar, wanda bai dace da aikace-aikacen cibiyar bayanai.
A halin yanzu 400G na gani module, 8-tashar 53GbpsPAM4 (400g-sr8,FR8,LR8) ko 4-tashar 106GbpsPAM4 (400g-dr4, FR4, LR4) aka yafi amfani da cimma 400G siginar watsa a cikin Tantancewar tashar jiragen ruwa gefen, da kuma 8. Ana amfani da siginar lantarki ta tashar 53GbpsPAM4 a gefen tashar wutar lantarki, ɗaukar nau'in marufi na OSFP ko qsfp-dd.Dukansu fakitin OSFP da QSFP-DD suna samar da musaya na siginar lantarki ta tashar 8. A kwatanta, girman fakitin qsfp-dd ya fi ƙanƙanta (mai kama da na al'ada na 100G na gani QSFP28 kunshin), wanda ya fi dacewa da aikace-aikacen cibiyar bayanai.Girman kunshin OSFP ya ɗan fi girma, saboda yana iya samar da ƙarin amfani da wutar lantarki, don haka ya fi dacewa da aikace-aikacen sadarwa.
Adadin da ke gaba yana nuna aiwatar da 400g-fr8 / LR8 da 400g-fr4 bi da bi.
(Reference:Bayanin OSFPMSA don OSFP OCTAL SMALLFORM FACTOR PUGGABLE MODULE.)Ana iya ganin cewa gefen dubawa shine siginar 8-tashar 53Gbps PAM4.Don 400g-sr8 / FR8 / LR8 da sauran kayayyaki,
CDR (maidowa agogo) da lantarki/na gani ko jujjuyawar gani/lantarki ana yin su ne kawai a cikin na'urar gani.Sabili da haka, gefen tashar tashar tashar tashar tashar tashar tashar tashar tashar 8-tashar 53Gbps PAM4, kamar ma'aunin tashar wutar lantarki.Domin 400g-dr4 / FR4/LR4 da sauran kayayyaki, akwai kwakwalwan kwamfuta na Gearbox a cikin na'urar gani wanda ke ninka shigarwar biyun. tashar jiragen ruwa zuwa cikin sigina ɗaya kuma yana daidaita shi zuwa haske, don haka saurin gefen tashar tashar tashar ta ninka sau biyu na gefen tashar, wato, siginar 106GbpsPAM4.
