Huawei NE05E Hardware Manual page 388

HUAWEI NE05E,NE08E
Hardware Guide
The engineering design in terms of construction, structure, heating, ventilation,
power supply, lighting and fire fighting should comply with the environment
requirements for optical synchronous transmission equipment. It should also
comply with the international standards and specifications related to industrial
enterprise, environment protection, fire fighting, and human protection, as well as
the regulations and requirements for constructing and designing buildings.
Site requirements are as follows:
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Issue 05 (2023-03-31)
The altitude should be within the range of -60 m to 4000 m.
The site should be kept away from (heavy, moderate, and light) pollution
sources. If these pollution sources cannot be avoided, select a site in the
perennial upwind direction. Use a high-quality equipment room or take high-
level protective measures.
The ventilation port for air exchange of the equipment room must be kept
away from sources of corrosive gas pollution. The equipment room should be
kept in the positive pressure state lest the corrosive gases enter the
equipment room and erode components and circuit boards.
The equipment room should be kept away from heat sources. If this is
unavoidable, using a heat exchange cabinet or air conditioning cabinet is
recommended.
The equipment room should be located as high as possible. In general, it must
be located at least 600 mm above the maximum flood level in the local
record.
The equipment room should be kept 3.7 km away from the seaside or salt
lake. If this requirement cannot be satisfied, the equipment room should be
airtight with cooling facilities. In addition, the alkalized soil cannot be used as
the construction material. Otherwise, the equipment applicable in atrocious
environment must be adopted.
The equipment room should be solid enough to withstand wind and
downpour.
The equipment room should be kept away from the road or sand field with
dusts flying around. If this requirement cannot be satisfied, the windows and
doors of the equipment room should be kept away from the sources of
pollution.
The equipment room should not be placed near any water source. If this
cannot be avoided, the equipment room must be closed, with an air
conditioning system installed.
Mechanical stress requirements
Item
Random vibration
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4 Hardware Installation and Parts Replacement
Subitem
Acceleration
Frequency
dB/oct
Range
2 3
0.02 m /s
● 5 Hz to 10 Hz
● 10 Hz to 50 Hz
● 50 Hz to 100 Hz
-12 to +12
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