Cisco 4948 - Catalyst Switch - Page 90

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Catalyst 4948E and Catalyst 4948E-F Switch Installation Guide
OL-21561-02
Appendix A Power Supply Specifications
300 W DC-Input Power Supply (PWR-C49-300DC)
Ta b l e A-7 DC-Input Power Supply Inlet Temperature Versus Fan Speed
Fan Speed
Level
Inlet Temperature (T)
(± 2°C)
Fan Speed (RPM)
(±100RPM)
L1 –10°C < T ≤ 30°C 5100
L2 30°C < T ≤ 37°C 6400
L3 37°C < T ≤ 45°C 7700
L4 T > 45°C 9500