41110590
Rev 6.1
January 28, 2019
49
Product Technical Specification and
User Guide
Reliability Compliance and
Recommendations
8.2.3.
Corrosive Resistance Stress Tests
The following tests the modem’s resistance to corrosive atmosphere.
Table 34.
Corrosive Resistance Stress Tests
Designation
Condition
Humidity Test
HUT
Standard: IEC 60068-2-3, Test Ca
Special conditions:
•
Temperature: +65°C
•
RH: 95%
•
Temperature variation: 3 ± 0.6°C/min
Operating conditions: Powered on, DUT is powered up for 15 minutes
and OFF for 15 minutes
Duration: 10 days
Moist Heat Cyclic Test
MHCT
Standard: IEC 60068-2-30, Test Db
Special conditions:
•
Upper temperature: +40 ± 2°C
•
Lower temperature: +23 ± 5°C
•
RH:
Upper temperature: 93%
Lower temperature: 95%
•
Number of cycles: 21 (1 cycle/24 hours)
Operating conditions: Powered ON for 15 minutes during each 3 hours
ramp up and 3 hours ramp down (in middle) for every cycle
Duration: 21 days
8.2.4.
Thermal Resistance Cycle Stress Tests
The following tests the modem resistance to extreme temperature cycling.
Table 35.
Thermal Resistance Cycle Stress Tests
Designation
Condition
Thermal Shock Test
TSKT
Standard: IEC 60068-2-14, Test Na
Special conditions:
•
Temperature: -30°C to +80°C
•
Temperature Variation: less than 30s
•
Number of cycles: 600
•
Dwell Time: 10 minutes
Operating conditions: Un-powered
Duration: 9 days
