ETC SMARTRACK User Manual page 14

Version 1.2 Smartrack User Manual
One thermal sensor is provided for each power device, and constantly feeds
back temperature status information to the central processor (CPU). The CPU uses
this information to decide when it is necessary to switch on the fan for any given
power assembly. In the event that a power device should run hot, an amber
warning signal is lit on the front panel. If the device overheats, it will be shut
down, and the warning LED will flash red.
The thermal indicator LED may be wired to a remote panel, or incorporated in
control room furniture, to provide a simple (geographic) dimmer room mimic
panel, showing rack power and temperature status.
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