Environmental Capabilities
Mechanical conditions
The mechanical conditions conform to
• IEC 721-3-4 class /4M5/
• ETS 300 019-1-4 class 4.1
In addition to this, Ericsson demands more rigorous values than stated
by IEC and ETSI above.
Table 79 Mechanical conditions during operation outdoor
Environmental parameter Value
Vibration sinusoidal displacement, mm 3.0
acceleration, m/s
2
10
frequency, Hz 2 - 9 9 - 200
Vibration random ASD
(1)
,m
2
/s
3
0.5
frequency, Hz 2 - 200
Duration of exposure, min 30
no. of test directions 3
Shock peak acceleration, <100 kg
m/s
2
250
peak acceleration, >100 kg
m/s
2
100
(2)
duration, ms 6
(1) ASD = Acceleration Spectral Density
(2) The requirement belongs to safe function with the following exception:
Performance of the RBS shall be verified as "no loss of calls".
Seismic exposure
Table 80 Safe function during seismic exposure
Testing severity
Frequency range 1-15 Hz
Required Response Spectrum RRS (Required Response Spectrum)
Shape of RRS as IEC 68-2-57 fig. 3
EN/LZT 123 2697 R5A
1998-08-13
283 (306)
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— All Rights Reserved —
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