1:N protection switching architecture for common processing units
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United States of America Patent
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Jan 28, 2003
Grant Date -
N/A
app pub date -
Apr 18, 2000
filing date -
Apr 18, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system for providing 1:n protection for common processing units in a star bus architecture multiplexer or switching system and providing one redundant protection common processing unit to protect up to n working common processing units has a pair of first and second common processing slots (C) for common processing units, a plurality of tributary interface slots (T) for tributary interface units, and at least one universal slot (U) for accommodating either an additional common processing unit or a tributary interface unit. If the working on-line common processing unit of the dedicated pair fails, the protection common processing unit takes over for the failed common processing unit. If one of the additional common processing units fails, the dedicated protection common processing unit takes over, thereby providing 1:n protection regardless of where each common processing unit is located.
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