Huawei U-SYS MRS6100 - Transportation Environment

Technical Manual
U-SYS MRS6100 Media Resource Server
Chapter 8 Technical Specifications
Huawei Technologies Proprietary
8-6
8.6.2 Transportation Environment
The applicable standard is EUROPEAN ETS 300 019-1-2 “Class 2.3 PUBLIC
transportation”.
I. Climate
Table 8-9 Climate requirements
Item Scope
Altitude ≤ 5000m
Atmosphere 70–106 kPa
Temperature -40°C to +70°C
Temperature variation rate ≤ 3°C/min
Relative humidity 5%–100%
Solar radiation ≤ 1120 W/s²
Heat radiation ≤ 600 W/s²
Wind speed ≤ 20 m/s
Rain ≤ 6 mm/min
II. Biologic environment
1) Avoid propagation of microorganisms, such as fungi and moulds.
2) Avoid damages by rodents, such as rats.
III. Air cleanness
1) There must be no explosive, conductive, magnet-conductive and corrosive dust
in the air.
2) The densities of mechanical active materials comply with those listed in
Table 8-10.
Table 8-10 Restrictions on densities of mechanical active materials
Mechanical active material Unit Content
Suspended dust mg/m³ –
Precipitable dust mg/m²·h ≤ 3.0
Sand mg/m³ ≤ 100
Note:
z Suspending dust: diameter ≤ 75 D m
z Precipitable dust: 75 D m ≤ diameter ≤150 D m
z Sand: 150 D m ≤ diameter ≤1000 D m