Methods and apparatus for identifying a passive optical network failure
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United States of America Patent
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Feb 1, 2011
Grant Date -
Oct 11, 2007
app pub date -
Sep 1, 2006
filing date -
Apr 5, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
A method and corresponding apparatus is disclosed for determining a particular Optical Network Terminal (ONT) in a Passive Optical Network (PON) is malfunctioning by sending a continuous stream of light up a shared fiber, which results in adversely affecting communications between the ONT and an Optical Line Terminal (OLT). The example embodiment verifies the failure is due to a faulty optical transmitter in the ONT and not a different network fault, such as a fiber optic line cut or power outage. Through the use of the example embodiment, a service provider can determine in an automated manner which specific ONT of a PON is malfunctioning.
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