59
NOTE:
•
For the power consumption of the cards and fan trays, see “
Module power consumption and system
power consumption
.”
•
Heat dissipation is measured in the unit of BTU/h. 1 W = 3.4121BTU/h.
Environmental specifications
Table 25
Environmental specifications
Description Operating Non-operating
Temperature
0°C to 45°C (32°F to 113°F)
–40°C to +70°C (–40°F to +158°F)
Relative humidity
10% to 95% (non-condensing)
5% to 95% (non-condensing)
Altitude
–60 m to +4 km (–196.85 ft to +2.49 miles)
When the altitude is 4 km, the highest
operating temperature is 31.8°C (89.24°F).
The maximum operating temperature
increases 0.33°C (0.59°F)/100 m (328.08 ft)
downwards until 45°C (113°F) is reached.
–60 m to +4.5 km (–196.85 ft to
+2.80 miles)
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 26
.
Table 26
Sound pressure levels
Model
Sound pressure level under
normal temperature
Sound pressure level when the
fan tray operates at full speed
A10504
62.3 dBA
75.5 dBA
A10508
63 dBA
75.8 dBA
A10508-V
61.6 dBA
72.6 dBA
