Airbridge DBS3900 CDMA Base Station
Product Description
6 Technical Specifications of the DBS3900
Issue 11 (2010-06-18)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
6-13
Climatic Requirements
Table 6-18
lists the climatic requirements for the storage environment of the equipment.
Table 6-20
Climatic requirements for the storage environment of the equipment
Item
Range
Temperature -40
o
C [-40
o
F] to +70
o
C [+158
o
F]
Temperature change rate
≤
1
o
C/min
Relative humidity
BBU: 5%RH to 95%RH
RRU: 5%RH to 100%RH
Air pressure
70 kPa to 106 kPa
Solar radiation
≤
1120 W/m
2
Thermal radiation
≤
600 W/m
2
Wind speed
BBU:
≤
30 m/s
RRU:
≤
50 m/s
Waterproofing Requirements
The waterproofing requirements for the storage environment of the equipment are as follows:
z
If possible, store the equipment indoors and ensure that:
−
No water accumulates on the ground or may drop onto the package of the equipment.
−
The equipment is kept away from devices that may leak water, for example,
automatic fire-fighting devices and heating devices.
z
If the equipment has to be stored outdoors, ensure that:
−
The package is intact.
−
Appropriate waterproofing measures are taken to prevent rainwater from entering the
package.
−
No water accumulates on the ground or may drop onto the package of the equipment.
−
The package is not exposed directly to sunlight.
Biological Requirements
The biological requirements for the storage environment of the equipment are as follows:
z
The environment is not conducive to the growth of microorganisms, such as fungi.
z
The equipment is protected from rodents, such as mice.
Air Purity Requirements
The air purity requirements for the storage environment of the equipment are as follows:
z
The air is free from explosive, electroconductive, magnetoconductive, and corrosive
dust.