Reference Manual

Table Of Contents
Product Data
5.4.7 Climate Endurance
Table 49 Climatic endurance
Environmental
Parameters
Units Normal
Conditions
NonDestructive
Conditions
Temperature
C
+5 - +40 -10 - +55
Relative humidity % 5-85 5-90
Normal conditions describe the environmental conditions where all
units function as specied.
Non-destructive conditions describe environmental stress above the
limits for normal conditions with no function guaranteed and
unspecied degradation. When the environmental stress has dropped to
normal conditions, restoring full RBS performance requires no manual
intervention on site.
Non-destructive conditions refer to a period of maximum 96 consecutive
hours, and a total of maximum 5.5 days in a three year period.
5.4.8 Acoustic Dispersion
In operation, the base station will not generate acoustic noise exeeding
the following limits:
Sound power of 5.8 Bel (B) at environmental temperature below +30
C.
Sound power of 6.3 Bel (B) at maximum environmental temperature,
above +30
C.
5.4.9 Vibrations
RBS 2206 is tested to withstand random vibrations of up to 0.2 m²/s².It
is also tested for single shocks up to 40 m/s².
RBS 2206 is tested for seismic exposure with a test frequency of 1 -
35 Hz. Maximum test level of the Required Response Spectrum (RRS)
is 50 m/s² within 2 - 5 Hz. The shape of RRS is dened by ETSI
standard.
5.4.10 External Alarms
The external alarm inputs in the RBS 2206 do not have overvoltage
protection. It is compulsory to use the DF to protect the external alarm
inputs.
The optional Distribution Frame (DF) provides connections for RBS
2206 external alarms. There are 16 external alarms available. The
alarm device can set the alarm by either an open or closed circuit.
The alarm device connected to the screw terminals should be isolated
relay contacts. A closed contact (logic zero) is required to be below
2k
, and an open contact (logic one) above 100 k
. The current
through a closed 0
contact is 1.2 mA. The voltage between terminals
with an open contact is 24 V DC.
The external alarms are dened at the installation. They are dened by
using the Operation and Maintenance Terminal (OMT) or from the BSC.
90 (421)
EN/LZT 720 0008 R1A
2001-06-26
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