Reference Manual

Environmental Capabilities
3.9 Operation Outdoor -33

C - +45

C
The severity of the requirements is in conformity with: IEC 721-3-4
classes 4K2/4Z5/4Z7/4B1/4C2(4C3)/4S2/4M5. and ETS 300 019-1-4
Class 4.1. "NON-WEATHERPROTECTED location", except for the
temperature range which is extended to +45

C.
This clause refers to the environment which an RBS for outdoor
non-weather protected location shall endure.
The figures below refers to the environment that is surrounding the
cabinet and the temperature is the shaded air temperature.
3.9.1 Climatic Conditions
The severity of these requirements is in conformity with: IEC 721-3-4
classes 4K2/4Z5/4Z7. and ETS 300 019-1-4 Class 4.1. In addition to
this Ericsson demands more rigorous values than stated by IEC and
ETSI above.
The RBS shall be designed for a power loss of max. 48 hours. This
applies both to installation and operation.
Table 9
Environmental Unit Value
Parameters Normal Condition Non Destr.
Temperature

C
-33 - +45 -40 - +70
Relative Humidity % 15 - 100 15 - 100
3.9.2 Biological Conditions
The severity of these requirements is in conformity with: IEC 721-3-4
class /4B1/. and ETS 300 019-1-4 Class 4.1.
3.9.3 Chemically Active Substances
The severity of these requirements is in conformity with: IEC 721-3-4
classes /4C2(4C1)/. and ETS 300 019-1-4 Class 4.1.
Note: The values are average yearly levels of airborne
contaminants that can be accepted. It is assumed that one of
the contaminants is dominant at each site, and that the other
is present in insignificant amounts.
3.9.4 Mechanically Active Substances
The severity of these requirements is in conformity with: IEC 721-3-4
class /4S2/. and ETS 300 019-1-4 Class 4.1.
3.9.5 Mechanical Conditions
The severity of these requirements are in conformity with: IEC 721-3-4
class /4M5/. and ETS 300 019-1-4 Class 4.1.
28 (485)
EN/LZT 720 0008 P2A
2001-11-28
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