Kana simba rekufambisa rechiteshi chemuviri rakakwirira kudarika kudiwa kwechiratidzo chimwe, chiteshi chinogona kugoverwa nezviratidzo zvakawanda, semuenzaniso, trunk line yenharembozha inowanzova nezviuru zvezviratidzo zvinopfuudzwa mune imwe fiber. Multiplexing tekinoroji yekugadzirisa maitiro ekushandisa chiteshi kutumira masaini akawanda panguva imwe chete. Chinangwa chayo ndechekushandisa zvizere bhendi yefrequency kana zviwanikwa zvenguva yemugero uye kuvandudza chiyero chekushandiswa kwechiteshi.Kune nzira mbiri dzakajairika dzechiratidzo chemultiplexing: Frequency division multiplexing (FDM) uye Time division multiplexing (TDM). Nguva yekuparadzanisa multiplexing inowanzoshandiswa pakuwandisa kwezviratidzo zvemadhijitari uye ichakurukurwa muChitsauko 10. Frequency division multiplexing inonyanya kushandiswa pakuwanda kwezviratidzo zveanalogi, asi inogonawo kushandiswa kune zviratidzo zvemagetsi. Ichi chikamu chichakurukura misimboti uye mashandisirwo eFDM.
Frequency division multiplexing inzira yemultiplexing inokamura machaneli zvichienderana ne frequency. MuFDM, bandwidth yechiteshi yakakamurwa kuita akawanda asingapindire ma frequency mabhendi (subchannels), uye chiratidzo chimwe nechimwe chinotora imwe yema subchannels, uye panofanira kunge paine isina kushandiswa frequency mabhendi (yekudzivirira mabhendi) pakati pematanho kudzivirira kupindirana kwechiratidzo. Pakupera kwekugamuchira, iyo yakakodzera bandpass sefa inoshandiswa kuparadzanisa akawanda masaini, kuitira kuti adzorere masaini anodiwa.
Iyo dhizaini pazasi inoratidza iyo block dhizaini yeiyo frequency division multiplexing system. Pakupera kwekutumira, imwe neimwe baseband izwi siginecha inotanga kupfuura nepasi-pass sefa (LPF) kuitira kudzikamisa iyo yakanyanya frequency yechiratidzo chega chega. Zvadaro, chiratidzo chega chega chinogadziridzwa kune chakasiyana chinotakura frequency, kuitira kuti chiratidzo chega chega chifambiswe kune chayo frequency bhendi renji, uye yobva yagadzirwa muchiteshi chekufambisa. Pakupera kwekugamuchira, nhevedzano yebhendi-pass mafirita ane akasiyana epakati frequency anoshandiswa kupatsanura masaini akagadziridzwa, uye anowirirana baseband masaini anodzoserwa mushure mekunge aderedzwa.
Kuti udzivise kupindirana pakati pezvikwangwani zvepedyo, mutakuri f_c1,f_c2, f_cn anofanirwa kusarudzwa kuti asiye rimwe bhendi redziviriro pakati peimwe modulated chiratidzo spectrum.
Zviri pamusoro ndeShenzhen HDV Phoelectron Technology Ltd. kuti ikuunze nezve "frequency division multiplexing" tsananguro yeruzivo, tariro yekukubatsira, uye Shenzhen HDV Phoelectron Technology Ltd.ONUseries, transceiver series,OLTdzakatevedzana, asiwo dzinogadzira module dzakatevedzana, dzakadai se: Kukurukurirana optical module, optical communication module, network optical module, communication optical module, optical fiber module, Ethernet optical fiber module, nezvimwewo, inogona kupa iyo inoenderana mhando sevhisi kune akasiyana vashandisi 'zvido , gamuchirai kushanya kwenyu.