End-of-line test systems (EOL)
-Securing the quality of your products
Box Build or End-of-line test
We are one of Scandinavia's most experienced experts in designing and manufacturing turnkey systems for final end-of-line or Box Build testing of electronic devices.
Whether you need to test your device or end-of-line via connectors, terminals, or wireless, DSE can provide specialized test expertise for the optimal test solution.
With over 30 years of experience, we know how to create fast, stable, and easy-to-maintain systems for the production environment.
We are experts in designing and manufacturing end-of-line or Box-Build test systems for functionality, signals, speed, communication, connections, components, performance, calibration, programming, regulation/compliance, and validation.
Usually, an End-of-line test is done by:
- Test of/via connectors
- Test via slide-in probes
- Wireless unit test (BLE, WiFi, Zigbee..)
- Safety test (HiPOT)
- Display test
Turnkey End-of-line test - manufactured in-house!
We design and manufacture the complete turnkey test solutions in-house. Our experienced engineers specialize in mechanics, safety, RF wireless, electronics, and test software.
You can benefit from ISO 9001 quality control system, which ensures the same quality every time. Your Test Systems will be delivered with documentation and CE certification. Having the complete process in-house means flexibility under control for our customers.
Please take a look at our leaflet to read more; click here!
FAQ
What is an End-of-Line (EOL) test?
An End-of-Line (EOL) test is the final stage of product verification performed after assembly. It ensures that the fully built product functions correctly, meets safety standards, and is ready for packaging and shipment to the end customer. While individual sub-units like PCBAs or modules may be tested earlier, the EOL test focuses on validating the complete product.
Why is an EOL test important?
EOL testing helps ensure that only safe, functional, and reliable products reach customers. It reduces warranty claims, protects brand reputation, and verifies compliance with industry safety and performance standards.
How does EOL testing differ from PCBA testing?
- PCBA testing checks that the printed circuit board assembly and its components work correctly before the product is assembled.
- EOL testing verifies the performance and safety of the final, assembled product as a whole.
Together, both stages prevent defective or unsafe products from leaving production.
What is tested during an EOL test?
The exact scope depends on the product, but common checks include:
- Functional inputs/outputs: buttons, switches, displays, connectors, terminals
- Communication interfaces: USB, Ethernet, CAN, wireless connections (Bluetooth, Wi-Fi, etc.)
- Identification and traceability: QR codes, barcodes, serial numbers, firmware versions
- Safety checks: HiPOT (high potential) test to ensure electrical insulation and prevent shock hazards
- System behavior: verifying product performance under different operating conditions
How is an EOL test performed?
There are different methods, depending on product volume and production setup:
- Manual testing: suitable for low-volume production or products requiring visual and sensory inspection.
- Automated testing: faster and more consistent, ideal for high-volume production.
- Integration options: either as a stand-alone station after assembly or fully integrated into the production line.
What happens if a product fails the EOL test?
If a product fails, it is removed from the production flow and sent for troubleshooting and repair. Once the issue is fixed, it can be retested. This process prevents defective products from reaching the market.
Can EOL testing be customized?
Yes. EOL tests are usually tailored to the product type, complexity, and customer requirements. Some industries require strict certifications (automotive, medical devices, aerospace), which define the mandatory tests that must be included.
What are the risks of skipping EOL testing?
By not performing an EOL test, manufacturers risk shipping defective or unsafe products to customers. This can lead to product recalls, costly warranty claims, and damage to brand reputation. In regulated industries, it may also result in non-compliance with safety standards.
