Figure 28: AC Power Supply Serial Number
Installation Guidelines
Observe these guidelines when removing or installing a power supply module.
• Do not force the power supply module into the slot. This can damage the pins on the switch if they are
not aligned with the module.
• A power supply module that is only partially connected to the switch can disrupt the system operation.
• Remove power from the power supply module before removing or installing the module.
• The power supply module is hot-swappable. In some configurations, such as full PoE+ or power sharing
mode, removing a power supply module causes powered devices to shut down until the power budget
matches the input power of a single power supply module. To minimize network interruption, ensure
that an active backup is in progress.
For the switch commands that display available power budget, see the software configuration guide.
Cisco Catalyst 9200 Series Switches Hardware Installation Guide
42
Installing a Power Supply Unit
Installation Guidelines
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