Sonet data transfer protocol between facility interfaces and cross-connect
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United States of America Patent
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-
Feb 16, 1999
Grant Date -
N/A
app pub date -
May 21, 1992
filing date -
May 21, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An internal signal within a SONET element has a transport format having overhead and payload mapped in a manner similar to the Synchronous Optical Network standard mapping, except having selected overhead bytes defined differently, including a byte used for communicating odd parity calculated over an odd number of bytes of a frame of the transport format to determine correct or incorrect parity, selected bytes used for inter-module automatic protection switching, and a pointer having a selected fixed value, along with an adjusted virtual tributary pointer in a virtual tributary mode.
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