Installing/removing fan assemblies, Installing/removing fan assemblies - 18 – Motorola CAJUN P880 User Manual
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Cajun P880 Routing Switch Installation Guide
1
Installing/Removing Fan Assemblies
The Cajun P880 contains two fan assemblies:
■
One large chassis fan tray containing ten fans to cool the logic
section of the system.
■
One smaller rear fan tray containing four fans, mounted on
the lower rear panel to cool the switch elements.
Both fan assemblies are hot-swappable and contain fan management
circuitry to:
■
Provides power to the fans
■
Supplies reduced voltage to the fans, for reduced speed
operation
■
Provides the Fan OK and present status signal to the CPU
■
Forces full fan speed operation, in the event of a fan failure
■
Accepts a control signal from the CPU, to force full fan speed
in the event of an over-temperature condition.