Passive optical network protection method, switchover control device, and passive optical network protection system
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United States of America Patent
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Apr 23, 2013
Grant Date -
Dec 29, 2011
app pub date -
Aug 31, 2011
filing date -
Aug 31, 2011
priority date (Note) -
Withdrawn
status (Latency Note)
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Abstract
The present invention discloses a passive optical network (PON) protection method, a switchover control device, and a PON protection system. In embodiments of the present invention, a protection optical line terminal (OLT) is connected to optical links of at least two working OLTs through the switchover control device; when a working OLT or working optical link fails, the switchover control device replaces the working OLT through the protection optical link, thus ensuring smooth communication. In addition, by using the networking mode of multiple working OLTs and one protection OLT, the embodiments of the present invention greatly saves the networking cost and facilitates the application of the PON technology.
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