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.
FAQ
What is an End-of-Line (EOL) test?
An End-of-Line (EOL) test is the final verification performed after a product has been fully assembled. It confirms that the complete product functions correctly, meets the required quality and safety requirements, and is ready for shipment.
How does EOL testing differ from PCBA testing?
PCBA testing verifies the printed circuit board before final assembly. EOL testing verifies the complete product, including its housing, connectors, cables, displays, sensors, firmware, communication interfaces, and overall system functionality.
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.
Which tests can be included?
Depending on the product, an EOL test system can include:
- Functional inputs/outputs testing.
- Programming and firmware verification.
- Voltage, current, resistance, and continuity measurements.
- Wired communication testing.
- Wireless testing, including Bluetooth, WI-FI, or Zigbee.
- Display, LED, keypad, and touchscreen testing.
- Barcode, QR code, serial-number, and label verification.
- Calibration and parameter adjustment.
- HIPOT, insulation-resistance, and earth-bond testing.
- Test-result storage and product traceability.
Can the system meet our required takt time?
Yes. Takt time is considered during the system design. The test sequence can be optimized through parallel measurements, automated fixture operation, quick-connect interfaces, barcode-driven recipe selection, or multiple test stations.
What information is needed to define an EOL system?
The following information is useful:
- Product drawings, photographs, and variants.
- Electrical diagrams, pinouts, and communication protocols.
- Required functional and safety tests.
- Acceptance limits and known failure modes.
- Required throughput or takt time.
- Production volume and shift pattern.
- Traceability and data-storage requirements.
- MES, ERP, or database integration requirements.
- Applicable standards and customer requirements.
Can the system store test data and integrate with MES or ERP?
Yes. Test results can be linked to a product serial number, barcode, QR code, or production order. Data may include measured values, limits, test status, operator, test time, firmware version, and failure information.
Depending on the application, data can be stored locally or exchanged with MES, ERP, quality, or production databases.
How are failed units and retests managed?
When a product fails, the system identifies the failed test step and records the relevant measurements and failure code. The product can then be routed for repair and retested according to a controlled procedure.
Retest results remain linked to the original serial number, allowing production and quality teams to monitor first-pass yield, recurring faults, and repair performance.
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