Multiplex communications – Fault recovery – Bypass an inoperative station
Reexamination Certificate
2007-01-09
2007-01-09
Nguyen, Chau (Department: 2616)
Multiplex communications
Fault recovery
Bypass an inoperative station
C370S539000, C370S406000
Reexamination Certificate
active
09909550
ABSTRACT:
A SONET/SDH architecture is disclosed that enables the multiplexing of STS-1's from different SONET/SDH rings into a single STS-N for transmission via a single optical fiber, but while maintaining the association of each of the STS-1's with its respective SONET/SDH ring. For example, when an STS-48 carries 12 STS-1's from a first SONET/SDH ring and 12 STS-1's from a second SONET/SDH ring, the STS-48 carries: the automatic protection switching channel for the 12 STS-1's from the first SONET/SDH ring (with addresses specified in the address space of the first SONET/SDH ring); and the automatic protection switching channel for the 12 STS-1's from the second SONET/SDH ring (with addresses specified in the address space of the second SONET/SDH ring).
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Limaye Pradeep Shrikrishna
Nandu Heena
Bay Microsystems, Inc.
Lee Andrew C.
Nguyen Chau
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