Cisco NCS 5501 Hardware Installation Manual page 68

Environmental and Physical Specifications
Acoustic Noise
Physical Dimensions
Rack Unit
Width
Depth
Height
Weight
Table 8: Environmental and Physical Specifications for NCS 55A1
Environmental Ranges
Operating Temperature
Non-operating (storage)
temperature
Humidity
Altitude
Acoustic Noise
Physical Dimensions
Rack Unit
Width
Hardware Installation Guide for Cisco NCS 5500 Series Fixed-Port Routers
60
• Ambient temperature < 30°C, sound power = 70 dB; sound
pressure = 56 dB
• Ambient temperature between 30°C and 42°C, sound power = 79
dB; sound pressure = 66 dB
• Ambient temperature > 42°C, sound power = 83 dB; sound
pressure = 71 dB
NCS 5500 series employs a fan speed control algorithm based
Note
on the environmental temperature to reduce the acoustics noise.
Ambient temperature is measured 6" in front of the system air
intake (cold aisle).
1
17.4 in (44.19 cm)
21.7 in (55.11 cm)
1.72 in (4.36 cm)
NCS 5501: 22.8 lbs (10.34 kgs)
NCS 5501 SE: 23.5 lbs (10.66 kgs)
32 to 104°F (0 to 40°C)
-40 to 158°F (-40 to 70°C)
5 to 95% non-condensing
0 to 9842 feet (0 to 3000 meters)
NEBS compliant. Less than 78 dB sound power at 27°C
NCS 5500 series employs a fan speed control algorithm based
Note
on the environmental temperature to reduce the acoustics noise.
Ambient temperature is measured 6" in front of the system air
intake (cold aisle).
1
17.3 in (43.94 cm)
System Specifications