Environmental Reliability Requirements; Esd Characteristics - Fibocom NL668-LA Hardware User Manual

Temperature
Limited operating temperature
Storage temperature

8.3 Environmental reliability requirements

Test items
Low temperature storage test
High temperature storage test
Temperature shock test
High temperature and humidity
test
Low temperature operating test
High temperature operating
test
Vibration test
Connector life test

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 7-5
Interface
VBAT, GND
Antenna port
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FIBOCOM NL668-LA Series Hardware User Manual
Min
-40
-40
Table 8- 3 Environment Temperature Range
Test conditions
Temperature -40℃± 3℃, 24 hours in shutdown state
Temperature +85℃± 3℃, 24 hours in shutdown state
In shutdown state, 0.5 hour at -40℃ and +85℃ environment
respectively, the temperature conversion time <3min, for 24 cycles
Temperature +85℃± 3℃, humidity 90 ~ 95% RH, 24 hours in shutdown
state
Temperature -30℃± 3℃, 24 hours in operating state
Temperature +75℃± 3℃, 24 hours in operating state
Conduct vibration test according to the requirements shown in the table
below:
Frequency
5~20Hz
20~500Hz
30 times of insertion/removal for RF antenna interface cable
Table 8- 4 Environmental Reliability Requirements
Air discharge
± 10KV
± 8KV
Typ Max
85
90
Random vibration ASD (Acceleration
Spectral Density)
2 3
0.96m /s
2 3
0.96m /s (20Hz), other -3dB/octave
Contact discharge
± 5KV
± 4KV
Unit
℃
℃
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