The invention discloses a TV,
broadband and telephone
transmission system based on a cable TV HFC network, including backbone equipment, corridor unit equipment and user home equipment; the backbone equipment room is connected to the corridor unit, and the corridor unit is connected to the The user's home equipment; the backbone computer room equipment converts the HDTV IP
signal into an optical
signal of an
intermediate frequency signal, and the corridor unit equipment will receive the CATV optical signal, the optical signal of the
intermediate frequency signal and the IP signal and convert the CATV optical signal
Signal and the optical signal of the
intermediate frequency signal are converted into respective
radio frequency signals, and the optical signal of the IP signal is modulated into EOC signals, 3G signals and WIFI signals, and the corridor unit equipment mixes and distributes CATV
radio frequency signals and intermediate frequency signals according to users The
radio frequency signal, the EOC signal, the 3G signal and the WIFI signal, the user home equipment distributes the mixed signal transmitted by the corridor unit equipment according to the room, and can realize the transmission of TV on the cable TV HFC network at the same time ,
broadband, and telephone signals, so that the previous three networks can realize the integration of three networks in one function, and the construction cost of the network
system is greatly reduced.