Apparatus and method for visual field replaceable unit identification in the absence of host system device power
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United States of America Patent
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Jun 13, 2017
Issued Date -
N/A
app pub date -
Jul 8, 2015
filing date -
Jul 8, 2014
priority date (Note) -
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Abstract
The present disclosure is directed to visual field replacement unit (FRU) identification and retaining FRU status information of one or more field replaceable units in a host system device when one or more of the field replaceable units is removed from the host system device disconnecting host power to the removed field replaceable unit(s). The one or more field replaceable units may be located on a carrier printed circuit board assembly and the host system device may contain multiple field replaceable units and/or multiple carrier printed circuit board subassemblies. Once the host power is disconnected from the carrier, an alternate power source continues to provide power to keep the FRU indicator illuminated for repairs or replacement. The FRU indicator is illuminated long enough for a service technician to place the carrier on a bench or table top and recognize the failed FRU from the remaining FRUs.
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