At Precision Group, delivering a reliable power supply isn’t a bonus—it’s the baseline.
Our customers count on equipment that performs in extreme conditions, year-round. That’s why we’ve invested in a fully automated, high-capacity testing cabinet right here in our U.S. lab, pushing our power supplies to their limits before they ever leave the warehouse. The result? Reliable power supplies that you can trust in the field.
Our automated testing system dramatically expands our quality assurance capabilities, allowing us to validate product performance under real-world conditions while collecting detailed performance data on every test cycle.
Simulating Harsh Conditions to Ensure a Reliable Power Supply
The automated test cabinet replaces a previously manual testing process with a fully computer-controlled system capable of testing up to 192 power supplies simultaneously under simulated ONT loads.
Each power supply is monitored continuously for two full days under elevated heat and maximum load conditions designed to replicate some of the most demanding field environments.
By combining worst-case operating temperatures with maximum electrical loads, the testing process helps verify that every power supply can perform reliably before it reaches a customer installation.
Advanced Data Logging for Power Supply Reliability
During testing, the system records voltage and current measurements every five to ten seconds across every connected unit.
Computer-controlled load modules continuously monitor performance, automatically flagging any readings outside acceptable tolerances while creating detailed logs that can be reviewed, graphed, and analyzed at any point during the testing cycle.
This level of monitoring allows even small performance variations to be identified, helping ensure every power supply meets Precision Group’s quality standards before shipment.
Built-In Reliability from Start to Finish
The testing cabinet is just one layer of Precision Group’s comprehensive QA process:
- Initial circuit board validation before full assembly
- Mid-build functional testing
- A 100% two-hour burn-in test at the factory
- Final plug-in test just before sealing and shipping
- Sample-based stress testing once the product arrives at Precision Group
Sampling levels are adjusted based on the product’s maturity, production volume, and quality history. Established products may be tested through representative sampling, while new product introductions or products requiring additional validation may undergo expanded, or even 100%, testing to verify performance before release.
Automation That Delivers Reliable Power Supplies Faster
Once the units are connected, technicians simply select the appropriate test profile and start the automated process.
From that point forward, the system continuously monitors every unit, detecting issues such as low voltage or connection problems while logging performance throughout the entire testing cycle. Automation not only improves accuracy and consistency, but also increases throughput while reducing manual labor.
This investment reflects Precision Group’s commitment to delivering power solutions that are engineered, tested, and proven before they reach the field.
Reliable power supplies—made by installers, for installers.
