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FIBOCOM NL668-LA Series Hardware Guide
Page 51 of 61
Table 8-3 Environment temperature range
Temperature
Min
Typ.
Max
Unit
Operating temperature
-30
25
75
℃
Limited operating temperature
-40
-
85
℃
Storage temperature
-40
-
90
℃
8.3 Environmental Reliability Requirements
Table 8-4 Environmental reliability requirements
Test Item
Test Condition
Low temperature storage test
Temperature -40
℃
±3
℃
, 24 hours in shutdown state
High temperature storage test
Tempe85
℃
±3
℃
, 24 hours in shutdown state
Temperature shock test
In shutdown state, 0.5 hour at -40
℃
and +85
℃
environment
respectively, the temperature conversion time < 3min, for 24 cycles
High temperature and humidity
test
Tempe85
℃
±3
℃
, humidity 90
–95% RH, 24 hours in shutdown
state
Low temperature operating test
Temperature -30
℃
±3
℃
, 24 hours in operating state
High temperature operating
test
Tempe75
℃
±3
℃
, 24 hours in operating state
Vibration test
When the frequency is 5Hz to 20Hz, the random vibration ASD
(Acceleration Spectral Density) is 0.96m2/s3. When the frequency is
20Hz to 500Hz, the random vibration ASD is 0.96 m2/S3 (20Hz). For
other frequencies, the random vibration ASD is -3dB/octave.
Connector life test
30 times of insertion/removal for RF antenna interface cable
8.4 ESD Characteristics
NL668-LA series module design has considered ESD issue and provided ESD protect measurements, but
take ESD issue taken by module carrier and secondary development into consideration, developers
should care ESD protection of module application terminal. In addition to considering anti-static treatment
of packaging, please refer to recommended circuit of interface design in the document.
ESD allowable discharge range of NL668-LA series module show as table below:
Table 8-5 ESD allowable discharge range
