Chapter 19
Maintaining the Fan Units of the
Crossbar Box
Thischapter describes the procedure for maintaining the fan units mounted in a
crossbarbox.
■Configuration of the Fan Units
■BeforeMaintaining a Fan Unit
■Enablingthe Removal of a Fan Unit
■RemovingaFanUnit
■Installing a Fan Unit
■Restoringthe System
19.1 Configuration of the Fan Units
Thissectio n describes the configuration and the locations of the fan units.
Fourfan units are mounted in each chassis.
Ifone of the cooling fans fails during system operation, the XSCF detects the error.
However, the system can continue operating because the fans have a redundant
configuration.
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