Deassertion Hysteresis Example for Temperature Sensors
Assumption:
Upper Warning threshold is enabled.
Upper Warning = 20 (degrees Celsius)
Deassertion Hysteresis = 3 (degrees Celsius)
"Deassertion" level = 20-3 = 17 (degrees Celsius)
When the PXE detects that a temperature sensor's reading drops below 20 degrees Celsius, moving from the "above upper warning" range to the "normal" range, either of the following may occur:
If the temperature falls between 20 and 17 degrees Celsius, the "de‑assert" action is NOT turned on.
If the temperature drops to 17 degrees Celsius or lower, the PXE turns on the "de‑assert" action to announce the end of the "above upper warning" state.