Specifications

MC55/56 Hardware Interface Description
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MC55/56_hd_v04.00a Page 77 of 108 24.08.2006
achieve the upper limit T
amb max
= +70°C at permanent GPRS class 8 operation with 4.2V
supply voltage it is recommended to integrate MC55/56 in such a way that a minor heat
exchange with the environment can take place. A solution might be the usage of a small
heat sink.
5.3 Storage conditions
The conditions stated below are only valid for modules in their original packed state in
weather protected, non-temperature-controlled storage locations. Normal storage time under
these conditions is 12 months maximum.
Table 28: Storage conditions
Type Condition Unit Reference
Air temperature: Low
High
-40
+85
°C ETS 300 019-2-1: T1.2, IEC 68-2-1 Ab
ETS 300 019-2-1: T1.2, IEC 68-2-2 Bb
Humidity relative: Low
High
Condens.
10
90 at 30°C
90-100 at 30°C
% ---
ETS 300 019-2-1: T1.2, IEC 68-2-56 Cb
ETS 300 019-2-1: T1.2, IEC 68-2-30 Db
Air pressure: Low
High
70
106
kPa IEC TR 60271-3-1: 1K4
IEC TR 60271-3-1: 1K4
Movement of surrounding air 1.0 m/s IEC TR 60271-3-1: 1K4
Water: rain, dripping, icing and
frosting
Not allowed --- ---
Radiation: Solar
Heat
1120
600
W/m
2
ETS 300 019-2-1: T1.2, IEC 68-2-2 Bb
ETS 300 019-2-1: T1.2, IEC 68-2-2 Bb
Chemically active substances Not
recommended
IEC TR 60271-3-1: 1C1L
Mechanically active substances Not
recommended
IEC TR 60271-3-1: 1S1
Vibration sinusoidal:
Displacement
Acceleration
Frequency range
1.5
5
2-9 9-200
mm
m/s
2
Hz
IEC TR 60271-3-1: 1M2
Shocks:
Shock spectrum
Duration
Acceleration
semi-sinusoidal
1
50
ms
m/s
2
IEC 68-2-27 Ea