| 摘要 |
PURPOSE: A digital subscriber line of a communication system is provided to have an LAN interface device and a V.35 interface device in an HDSL(High-speed Digital Subscriber Line) for remote communication using a cooper wire, thereby enabling high-speed data communication. CONSTITUTION: Interfaces(100-300) interface inputted signals. An I/O signal selector(400) inputs the interfaced signals, and selectively connects the signals. A serial to parallel data converter(500) converts a serial data stream into parallel data. An HDSL module(700) converts the parallel data into an HDSL signal, and converts a signal of a DSL interface(800) into parallel data. The DSL interface(800) interfaces the converted HDSL signal to transmit the signal to a subscriber line, and interfaces a signal of the subscriber line to transmit the signal to the HDSL module(700). A controller(600) controls to perform HDSL data communication.
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