Apparatus and method for controlling initialization of a DMT system

摘要

An apparatus for controlling initialization of a discrete multi-tone (DMT) system is provided in which a connection between first and second devices is acknowledged by using a plurality of connection acknowledgment tone frequencies to thereby improve the reliability of the activation/acknowledgment procedure. The method includes transmitting a first connection acknowledgment tone signal at a predetermined frequency from the first device to the second device; detecting a first response tone signal transmitted from the second device; transmitting a second connection acknowledgment tone signal to the second device if the first response tone signal is not detected for a predetermined time; and detecting a second response tone signal inputted from the second device to thereby acknowledge a connection to the second device.