Digital cross connect system
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United States of America Patent
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-
Feb 23, 1993
Grant Date -
N/A
app pub date -
Dec 28, 1990
filing date -
Dec 28, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A digital cross connect system includes reception interface parts for converting an input line signal into a VT signal having a VT frame format in conformance with synchronous optical network (SONET) standards, a switching part for cross connecting the VT signal received from the reception interface parts, and transmission interface parts for converting the cross connected VT signal received from the switching parts into a line signal. The reception interface part inserts a frame synchronizing signal within a reserved path overhead part of the VT signal, and the transmission interface part achieves frame synchronization of the VT signal in response to the frame synchronizing signal.
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