Signal interface module
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United States of America Patent
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-
May 21, 2002
Grant Date -
N/A
app pub date -
Aug 22, 2000
filing date -
Aug 22, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus and method are provided for interfacing railway controllers with light units, such as LED light unit arrays, to shunt and/or disable test signals not traditionally intended to test non-incandescent light unit arrays.
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