H3C Technologies H3C S10500 Series Switches - Manual (Page 72)

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Noise
The switch uses fans with the automatic speed adjustment function, so the sound pressure levels are
different when the fan speeds are different. For more information, see
Table 17 .
Table 17 Sound pressure levels
Model
Sound pressure level under
normal temperature
Sound pressure level when the
fan tray operates at full speed
S10504 62.3 dBA 75.5 dBA
S10508 63 dBA 75.8 dBA
S10508-V 61.6 dBA 72.6 dBA
S10512 66 dBA 79 dBA