Importance

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Abstract

The present invention provides an efficient way to implement ADSL over long distances by combining a repeater for ADSL with a pair gain system, whereby the pair gain system remotely provides DC power to the repeater over the same pair as that for transmission of DSL and ADSL signals. The invention allows telecom operators to save huge costs in implementing ADSL over long distances, without sacrificing the quality of signal transmission. According to an embodiment of the invention, a telecommunication system comprises a central office system, a customer premise system and a repeater unit. The central office system provides and receives digital subscriber line (DSL) and asymmetrical DSL (ADSL) signals over a first pair of wires. The central office system also provides DC power to the repeater unit via the first pair. The customer premise system receives and sends DSL and ADSL signals over a second pair of wires. The repeater unit is coupled between the first and second pairs of wires for receiving an ADSL signal from the central office system via the first pair and providing a repeated ADSL signal to the customer premise system via the second pair. The repeater unit also receives an ADSL signal from the customer premise system via the second pair and provides a repeated ADSL signal to the central office system via the first pair.

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First Claim