Submarine branching unit having asymmetrical architecture
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United States of America Patent
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Jun 27, 2006
Grant Date -
Nov 27, 2003
app pub date -
Dec 18, 2002
filing date -
Dec 19, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A branching unit for use in submarine systems that includes a ground termination; first, second, and third cable terminations each coupled to a power feed line of a respective submarine cable; a re-configuration relay in series between the first cable termination and the ground termination, the re-configuration relay being unidirectional and having at least one contact positioned in series between the second and third terminations, the at least one contact being closed when the re-configuration relay is de-energized; and a bypass relay in series between the second and third cable terminations, the bypass relay having a contact positioned in parallel with the reconfiguration relay and being open when the bypass relay is de-energized.
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