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Iyo PON system inotora nguva-division multiplexing tekinoroji mune iyo uplink direction, uye ONU inotumira datagraphs kune iyo uplink direction zvinoenderana nenguva yechitambi yakagoverwa neOLT. Kana ONU ikaburitsa mwenje isina kupa chitambi chenguva, inopokana nemasaini ekuburitsa eimwe pa...

Nekuvandudzwa kwemaoptical communication systems ane chinhambwe chakareba, hukuru hukuru, uye kukurumidza kukurumidza, kunyanya kana imwe wave wave ichishanduka kubva pa40g kusvika 100g kana kunyange super 100g, chromatic dispersion, nonlinear effects, polarization mode dispersion, uye mamwe maitiro ekutapurirana mukati. ..

Kodhi yekuona kukanganisa (parity check code): parity check code ine n-1 bit information unit uye 1 bit check element. Iyo N-1 bit information unit idata rinoshanda muruzivo rwatinotumira, uye 1-bit cheki unit inoshandiswa pakuona kukanganisa uye redundancy kodhi. Odd cheki: kana iyo n...

Mhoro, Vaverengi. Muchikamu chino ndichakurukura nezve OSI-Data Link Layer Error Control netsananguro. Ngatitangei… Kuti tinzwisise kufambiswa kweiyo data link layer ngatitorei muenzaniso, kana mudziyo weA uchifanira kutaurirana neB mudziyo, chinongedzo chekutaurirana ...

Mhoro Vaverengi, Muchinyorwa chino tichadzidza kuti chii chinonzi Kukanganisa Kudzora uye kukanganisa kutonga kurongeka. Mukuita kwekufambiswa kwedata, nekuda kwekupesvedzera kweruzha pachiteshi, iyo waveform yechiratidzo inogona kukanganiswa kana ichiendeswa kune anogamuchira, re...

Mune yedhijitari nguva yekuparadzanisa kuwanda kwekukurukurirana system, kuti inyatso kupatsanura nguva slot masaini, iyo yekupedzisira yekutumira inofanirwa kupa mucherechedzo wekutanga wefuremu yega yega, uye maitiro ekuona nekuwana iyi chiratidzo pamagumo ekugamuchira anonzi furemu synchr. .