Apparatus and method for providing span power to communication equipment at a customer premise
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United States of America Patent
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Jun 17, 2003
Grant Date -
Sep 19, 2002
app pub date -
Mar 9, 2001
filing date -
Mar 9, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An apparatus and method are disclosed for providing backup power over communication wires from a central office of a service provider to a remote customer premise. In accordance with the invention, a high voltage direct current (HVDC) power signal and a digital data signal are combined and coupled to the communication wires at the central office. The combined signal is then transmitted along the communication wires to the remote customer premise. At the customer premise, the HVDC power signal is separated from the digital data signal. The HVDC power signal is then down converted into a low voltage direct current (LVDC) power signal that is coupled to premise communication wires at the remote customer premise. The premise communication wires them provide a path for the data signal and the LVDC power signal to the customer premise equipment (CPE). Thus, a reliable and safe source of backup power is provided for the CPE over existing communications wires.
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