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Topple Testing
The Tumble Test is a mechanical durability test commonly used to assess the robustness and mechanical integrity of telecom devices—especially handheld or portable products—when subjected to repetitive impact or drops in real-world use. This test simulates the effects of repeated accidental drops, which telecom products may experience during their service life.
Purpose of the Tumble Test
Standards Followed:
- Evaluate structural robustness and reliability.
- Simulate repeated accidental drops from a specific height.
- Identify mechanical failures such as broken components, loose parts, or cracked casings.
The tumble test is designed to:
- IEC 60068-2-31 (Ed.2.0)
- ETSI EN 300 019-2-5
- MIL-STD-810H Method 516.8
Testing should be conducted in ambient conditions unless otherwise specified.
Some standards require post-test environmental tests (e.g., thermal cycling) to confirm durability.
Typical Products Tested
Pass/Fail Criteria
- Mobile phones
- Handheld radios
- Wireless modems
- Remote controls
- Telecom handheld test equipment
- No structural cracks or breakage.
- No internal component damage.
- Device must power on and function correctly post-test.
- Cosmetic damage (scratches, minor dents) may be acceptable depending on the spec.
Tumble Test Parameters
| Test Chamber | A rotating or tumbling drum with internal barriers that cause the device to fall repeatedly. |
| Drop Height | Usually 0.5 to 1 meter, depending on the standard and product category. |
| Number of Drops | Ranges from 100 to 1000 or more, depending on the product and standard. |
| Inspection | Devices are inspected for damage after the test — cosmetic, mechanical, and functional integrity. |
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