Table 6-19 Requirements For The Concentration Of Mechanically Active Substances In The Storage Environment Of The Equipment; Table 6-20 Requirements For The Concentration Of Chemically Active Substances In The Storage Environment Of The Equipment - Huawei Airbridge DBS3900 Product Description

6 Technical Specifications of the DBS3900
Table 6-21 Requirements for the concentration of mechanically active substances in the storage
environment of the equipment
Mechanically
Active Substance
Suspended dust
Precipitable dust
Grit
NOTE
Table 6-22 Requirements for the concentration of chemically active substances in the storage
environment of the equipment
Chemically Active
Substance
SO
H
NO
NH
Cl
HCl
HF
O
Mechanical Stress Requirements
Table 6-21
environment of the equipment.
6-14
The concentration of mechanically active substances complies with the requirements
listed in Table 6-19.
Unit
mg/m
mg/m
mg/m
The diameter of a suspended dust particle is not greater than 75 µm.
The diameter of a precipitable dust particle is not smaller than 75 µm and not greater than 150 µm.
The diameter of a piece of grit is not smaller than 150 µm and not greater than 1000 µm.
The concentration of chemically active substances complies with the requirements listed
in Table 6-20.
2
S
2
2
3
2
3
and Table 6-22
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Concentration
BBU
3
≤ 5
2
·h ≤ 20
3
≤ 300
Unit
3
mg/m
3
mg/m
3
mg/m
3
mg/m
3
mg/m
3
mg/m
3
mg/m
3
mg/m
list the requirements for the mechanical stress in the storage
Airbridge DBS3900 CDMA Base Station
Product Description
RRU
≤ 5
≤ 500
≤ 300
Concentration
≤ 0.30
≤ 0.10
BBU: ≤ 0.50
RRU: ≤ 0.05
≤ 1.00
≤ 0.10
≤ 0.10
≤ 0.01
≤ 0.05
Issue 11 (2010-06-18)