METHODS AND APPARATUS TO TEST A CENTRAL OFFICE DIGITAL SUBSCRIBER LINE MODEM
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United States of America Patent
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Issued Date -
Oct 8, 2009
app pub date -
Apr 3, 2008
filing date -
Apr 3, 2008
priority date (Note) -
Abandoned
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Abstract
Methods and apparatus to test a central office (CO) digital subscriber line (DSL) modem are disclosed. An example line termination module for a DSL access multiplexer (DSLAM) comprises a printed circuit board, a plurality of DSL terminal unit-central (DTU-C) modems implemented on the printed circuit board, a DSL terminal unit-remote (DTU-R) modem implemented on the printed circuit board to test the DTU-C modems, and a switch implemented on the printed circuit board to selectively couple the DTU-R modem to a tested one of the DTU-C modems or to a subscriber line.
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