Functions of the CMU on S series switches

The CMU on an S series switch is used to centrally manage power and fan modules of the system.
The CMU provides the following fan module management functions:
- Fan module presence detection
- Fan module registration management
- Fan speed query
- Fan speed control
- Management and report of fan module alarms
- Query of fan module electronic labels
The CMU provides the following power module management functions:
- Power module presence detection
- Automatic shutdown of power module
- Power module registration management
- Voltage and current detection of power module
- Management and report of power module alarms
- Query of power module electronic labels

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