OPTICAL SUBSCRIBER NETWORK SYSTEM, ESPECIALLY RELATED TO SUPPORTING AN INTEGRATED BROADCASTING/COMMUNICATION SERVICE USING AN FTTH(FIBER TO THE HOME) NETWORK

摘要

PURPOSE: An optical subscriber network system is provided to enable an optical transmitter and an optical receiver to bidirectionally transceive a video signal and a high-speed Ethernet communication signal by using a single LD(Laser Diode) and a PD(Photo Diode), thereby reducing the number of parts. CONSTITUTION: An OLT(10) comprises as follows. An Ethernet switch(16) is disposed between an Ethernet first physical unit(15) and the second physical unit(17). A TDM(Time Division Multiplexer)(11) integrates an Ethernet communication signal with an MPTS(MPEG2 multi Program Transport Stream) signal, and time division-multiplexes the integrated signals. The first LD(12) converts the multiplexed signals into optical signals to transmit the optical signals to an ONU(20) through an optical fiber(30). The second PD(13) receives the Ethernet communication signal from the ONU(20).