SYSTEM AND METHOD FOR EXTENDING THE RANGE OF XDSL SERVICES

摘要

A system and method for extending the distance that xDSL services are able to be provided to subscribers (310a-310e). A DSLAM (300) located at a Central Office (301) is connected to a general-purpose network, such as the Internet. The DSLAM (300) is additionally connected to a first fiber optic transceiver. The first fiber optic transceiver (302) is connected via a fiber optic link (316)to a second fiber optic transceiver (306) located proximate to the subscribers' premises, preferably in a street cabinet (305). Each subscriber premise's equipment (310a-310e) is connected to the broadband transceiver (306) via subscriber lines (308a-308e). Electrical signals to be transmitted between the Central Office (301) and the subscribers' premises are utilized to form a frequency division multiplexed signal. The frequency division multiplexed signal is used to modulate a light subcarrier for transmission across the fiber optic link (316). At the respective receiving transceiver, the frequency division multiplexed signal is reconverted to the electrical signals, which are then applied to the subscriber premises equipment or DSLAM (300) depending upon the direction of communication.