Quasi ground fault interruption signal-based activation of emergency pots by-pass paths for line-powered digital subscriber loop
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United States of America Patent
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Jun 29, 2004
Grant Date -
N/A
app pub date -
Jan 7, 2000
filing date -
Jan 7, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A `lifeline` POTS back-up mechanism is operative to provide emergency plain old telephone service connectivity over a span-powered two-wire metallic digital subscriber loop pair, in response to a customer's phone going off-hook, during a lack of normal operating condition of the digital circuit path. A ground fault interruption signal is generated in a remote terminal and used to activate respective POTS by-pass paths in the remote terminal and a central office terminal.
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