Method and apparatus for supplying power to a twisted pair wire on a telecommunications modem transmission link
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United States of America Patent
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-
Dec 2, 2003
Grant Date -
N/A
app pub date -
Jun 22, 1999
filing date -
Jun 22, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A circuit and supplemental power source connection scheme for a telecommunications modem transmission link are described. The supplemental power source is connectable at any point along a telecommunications wire, including the terminals of repeaters and remote terminals. The combiner circuit includes a diode bridge for ensuring the proper connection of externally connected high voltage power to internal circuitry of the power combiner. The combiner also includes a line polarity matching circuit that automatically configures to signally connect internal positive and negative voltage signals to corresponding positive and negative external signal lines on a telecommunications modem transmission link.
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