Chapter 1 Product Overview
Switch Components
Figure 1-7 Catalyst 4900M Airflow
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There are five fans in the fan tray. If an individual fan fails, the other fans continue to run. Sensors monitor the internal air temperatures. The number of fans in operation and their speed varies according to the internal temperature for the quietest operation possible. If the air temperature exceeds a desired threshold, the environmental monitor displays warning messages.
Power Supplies
Note For complete power specifications for the Catalyst 4900M switch, see Appendix A, “Specifications.”
| Cisco Catalyst 4900M Switch Installation Guide |
