Lapho umthamo wokudlulisela wesiteshi esingokoqobo uphakeme kunesidingo sesiginali eyodwa, isiteshi singabelwa amasignali amaningi, isibonelo, umugqa we-trunk wesistimu yocingo uvame ukuba nezinkulungwane zamasignali adluliswa ngefayibha eyodwa. I-Multiplexing ubuchwepheshe bokuxazulula indlela yokusebenzisa isiteshi ukudlulisa amasignali amaningi ngesikhathi esisodwa. Inhloso yawo uwukusebenzisa ngokugcwele ibhendi yefrikhwensi noma izinsiza zesikhathi zesiteshi nokuthuthukisa izinga lokusebenzisa isiteshi.Kunezindlela ezimbili ezivamile zokuphindaphinda isignali: I-Frequency division multiplexing (FDM) kanye ne-Time division multiplexing (TDM). Ukuphindaphinda kokuhlukaniswa kwesikhathi kuvame ukusetshenziselwa ukuphindaphindeka kwamasignali edijithali futhi kuzoxoxwa ngakho eSahlukweni 10. Ukuphindaphinda kokuhlukaniswa kwe-frequency kusetshenziswa ngokuyinhloko ekuphindaphindeni kwamasignali e-analog, kodwa kungase futhi kusetshenziselwe amasignali edijithali. Lesi sigaba sizoxoxa ngezimiso kanye nokusetshenziswa kwe-FDM.
I-Frequency division multiplexing iyindlela yokuphindaphinda ehlukanisa iziteshi ngokuya ngobuningi. Ku-FDM, umkhawulokudonsa wesiteshi uhlukaniswe waba amabhendi amafrikhwensi amaningi angadluleli (amashaneli angaphansi), futhi isignali ngayinye ithatha enye yeziteshi ezingaphansi, futhi kufanele kube namabhendi amafrikhwensi angasetshenzisiwe (amabhendi okuvikela) phakathi kwamashaneli ukuze kuvinjelwe ukunqwabelana kwesignali. Ekupheleni kokwamukela, isihlungi se-bandpass esifanele sisetshenziswa ukuhlukanisa amasignali amaningi, ukuze kutholwe amasignali adingekayo.
Umdwebo ongezansi ubonisa umdwebo webhulokhi wesistimu ye-multiplexing ye-frequency division. Ekupheleni kokudlulisela, isignali yezwi ngayinye ye-baseband iqala idlule kusihlungi se-low-pass (LPF) ukuze kukhawulwe imvamisa enkulu yesignali ngayinye. Bese, isignali ngayinye ihlelwa imvamisa yenkampani yenethiwekhi ehlukile, ukuze isignali ngayinye ihanjiswe kububanzi bayo bebhendi yefrikhwensi, bese ihlanganiswa esiteshini ukuze idluliselwe. Ekupheleni kokwamukela, uchungechunge lwezihlungi ze-band-pass ezinamaza amaphakathi ahlukene asetshenziswa ukuhlukanisa amasignali ashintshiwe, futhi amasignali e-baseband ahambisanayo ayatholwa ngemva kokwehliswa kwawo.
Ukuze uvimbele ukugxambukela phakathi kwamasignali aseduze, amaza enkampani yenethiwekhi f_c1,f_c2, f_cn kufanele akhethwe ngokunengqondo ukuze kushiye ibhande elithile lokuvikela phakathi kwe-spectrum yesiginali eshintshiwe ngayinye.
Okungenhla yi-Shenzhen HDV Phoelectron Technology Ltd. ukuze ikulethele mayelana nencazelo yolwazi "ye-frequency division multiplexing", ngethemba lokukusiza, kanye ne-Shenzhen HDV Phoelectron Technology Ltd. ngaphezu kwalokhoI-ONUuchungechunge, uchungechunge lwe-transceiver,OLTuchungechunge, kodwa futhi ukukhiqiza uchungechunge module, ezifana: Ukuxhumana module optical, optical zokuxhumana module, inethiwekhi module optical, zokuxhumana module optical, optical fibre module, Ethernet optical fibre module, njll, anganikeza isevisi izinga elihambisana izidingo zabasebenzisi ezahlukene ' , wamukele ukuvakashelwa kwakho.