Ericsson RBS 2106 Reference Manual page 122

Product Data RBS 2206
6.4.7 Climate Endurance
Table 62
Environmental
Parameters
Temperature
Relative humidity
Normal conditions describe the environmental conditions where all
units function as specified.
Non-destructive conditions describe environmental stress above the
limits for normal conditions with no function guaranteed and
unspecified 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.
6.4.8 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
Sound power of 6.3 Bel (B) at maximum environmental temperature,
above +30
6.4.9 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 defined by ETSI
standard.
6.4.10 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
2 k , and an open contact (logic one) above 100 k
through a closed 0
with an open contact is 24 V DC.
The external alarms are defined at the installation. They are defined by
using the Operation and Maintenance Terminal (OMT) or from the BSC.
120 (485)
Climatic endurance
Units

C
%

C.
contact is 1.2 mA. The voltage between terminals
© Ericsson Radio Systems AB
— All Rights Reserved —
Normal Non–Destructive
Conditions Conditions
+5 - +40 -10 - +55
5 - 85 5 - 90
. The current

C.
EN/LZT 720 0008 P2A
2001-11-28