Patent ID: 7450608

Claim:
A subscriber distribution network apparatus having a backplane board which includes a network switch and a plurality of subscriber line units (SLUs), the network switch switching both Ethernet data and broadcasting data, and the plurality of subscriber line units being provided between the network switch and subscriber set-tops so as to provide data from the network switch to a corresponding subscriber set-top, and to provide data transmitted from the subscriber set-tops back to the network switch, wherein the network switch comprises a switch chipset and a first differential driver which converts serial signals of Ethernet data and broadcasting data outputted from the switch chipset into differential signals, and wherein each SLU includes a second differential driver, a signal converter, a time division multiplexing processing unit, and an optical transceiving module, the second differential driver being connected to the first differential driver through a connector and restoring the differential signals into serial signals, the signal converter converting the serial signals outputted from the second differential driver into parallel signals, the time division multiplexing processing unit multiplexing Ethernet signal and broadcasting signal outputted in parallel to each other from the signal converter and converting the multiplexed signal into a voltage signal having a predetermined level, the optical transceiving module converting the voltage signal into an optical signal, outputting the optical signal to the subscriber set-tops, and providing the second differential driver with signals transmitted from the subscriber set-tops.