HIGH PERFORMANCE ADSL LINE CONDITIONER SYSTEM AND METHOD

摘要

A DSL line conditioner achieves high performance sufficient to simultaneouslysupport video, voice and data signalson standard telephone twisted pair lines (102, 104, 106, 108) oversubstantially greater distances than are currently available. Theline conditioner (100) automatically adjusts and sets the upstreampreamplifier (112) and downstream preamplifier (122) gains andattenuations according to the actual degradation imposed upon the upstream anddownstream signals by the twisted pair line in whichthe line conditioner is used. The line conditioner achieves high performanceby optimizing the signal-to-noise ratio and signal qualityof DSL signals, and has a low power budget that enables it to operate byderiving power from the twisted pair lines over which it isused.