Transmission line control system and interface unit therefor
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United States of America Patent
Stats
-
Nov 21, 1995
Grant Date -
N/A
app pub date -
Mar 25, 1994
filing date -
Sep 20, 1993
priority date (Note) -
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status (Latency Note)
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Abstract
A transmission line control system is adapted to a communication system having a redundant configuration and including transmission apparatuses which are coupled via transmission lines of a working system and a protection system. Each of the transmission apparatuses includes an interface board with respect to each of the working and protection systems. The interface board includes a transmission line signal processor which processes signals exchanged with the transmission line and an apparatus interface which provides an interface between the transmission apparatus and the transmission line signal processor. The transmission line control system includes a process stop controller, provided in each interface board, stopping processes in the apparatus interface, and a mechanism for operating the process stop controller of the interface board in the protection system at each of the transmission apparatuses, so that power consumption is reduced.
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