Mgbe ike nnyefe nke ọwa anụ ahụ dị elu karịa ọchịchọ maka otu mgbaàmà, enwere ike ịkekọrịta ọwa ahụ site na ọtụtụ akara ngosi, dịka ọmụmaatụ, eriri akpati nke usoro ekwentị na-enwekarị ọtụtụ puku akara na-ebufe n'otu eriri. Multiplexing bụ teknụzụ iji dozie otu esi eji ọwa na-ebufe ọtụtụ akara n'otu oge. Ebumnuche ya bụ iji zuru oke nke bandwit ma ọ bụ oge ihe onwunwe nke ọwa ma melite ọnụọgụ ọrụ nke ọwa ahụ. E nwere ụzọ abụọ a na-emekarị nke mgbagwoju anya: Frequency division multiplexing (FDM) na Time division multiplexing (TDM). Oge nkewa multiplexing na-ejikarị maka multiplexing nke dijitalụ n'ókè na a ga-atụle n'Isi nke 10. Frequency nkewa multiplexing bụ tumadi ji maka multiplexing nke analọg signals, ma ọ nwekwara ike-eji maka dijitalụ n'ókè. Akụkụ a ga-atụle ụkpụrụ na ngwa nke FDM.
Mkpokọta nkewa ugboro ugboro bụ usoro nkewa nke na-ekewa ọwa dịka ugboro ole. Na FDM, bandwit nke ọwa na-ekewa n'ime ọtụtụ eriri ugboro na-adịghị agafe agafe (subchannels), na mgbama ọ bụla nwere otu n'ime ọwa subchannel, na a ga-enwerịrị eriri ugboro (band nchekwa) na-adịghị eji n'etiti ọwa ahụ iji gbochie mgbake mgbaàmà. Na njedebe nnata, a na-eji ihe nzacha bandpass kwesịrị ekwesị iji kewaa ọtụtụ akara, ka ọ wee nwetaghachi akara achọrọ.
Eserese dị n'okpuru na-egosi eserese ngọngọ nke sistemu nkewa nkewa ugboro ugboro. Na njedebe na-ebufe, a na-ebu ụzọ gafere mgbaama olu baseband ọ bụla site na nzacha dị ala (LPF) iji kpachie ugboro kachasị nke mgbaama ọ bụla. Mgbe ahụ, a na-agbanwe akara ọ bụla ka ọ bụrụ ugboro dị iche iche nke na-ebu ya, nke mere na a na-ebugharị akara ọ bụla n'ụdị bandwit nke ya, wee tinye ya na ọwa maka nnyefe. Na njedebe nnata, a na-eji usoro ihe nzacha band-pass nke nwere oge etiti dị iche iche na-ekewapụta akara ngosi ndị a gbanwere, a na-enwetakwa akara ngosi baseband kwekọrọ mgbe emechara ha.
Iji gbochie nnyonye anya n'etiti akara n'akụkụ, f_c1,f_c2, f_cn kwesịrị ịhọrọ nke ọma ka ọ hapụ otu nchekwa nchekwa n'etiti ụdị mgbama ọ bụla agbanweela.
The n'elu bụ Shenzhen HDV Phoelectron Technology Ltd. na-ewetara gị banyere "frequency division multiplexing" ọmụma nkọwa, na-atụ anya inyere gị aka, na Shenzhen HDV Phoelectron Technology Ltd. na mgbakwunye naONUusoro, usoro transceiver,OLTusoro, ma na-emepụta modul usoro, dị ka: Communication ngwa anya modul, ngwa anya nkwurịta okwu modul, netwọk ngwa anya modul, nkwurịta okwu ngwa anya modul, ngwa anya eriri modul, Ethernet ngwa anya eriri modul, wdg, nwere ike inye kwekọrọ ekwekọ àgwà ọrụ maka dị iche iche ọrụ 'mkpa. , nabata nleta gị.