Key Takeaways
- Integration testing catches assembly-level problems before shipment and gives buyers evidence that board, cable and enclosure work together. - The review should produce evidence that can be used again during repeat production, failure analysis or supplier comparison. - The strongest PCBA decisions connect design files, process controls, inspection criteria and final test data.
Who This Article Is For
This article is for buyers ordering PCBA modules, box-build assemblies, controllers or electronic subassemblies with cables. It is written for overseas engineering, sourcing and quality teams that need practical supplier review questions rather than generic manufacturing claims.
Why This Topic Matters
A PCBA can pass board-level test while the final assembly fails because of crossed pins, cable routing, connector seating, strain relief or label mistakes.
Integration testing catches assembly-level problems before shipment and gives buyers evidence that board, cable and enclosure work together.
For Google-aligned SEO and for real buyers, the content needs to answer a concrete manufacturing question. This topic connects naturally with [PCBA manufacturing services](/en/service), [DFM review](/en/dfm), [quality management](/en/quality) and [RFQ preparation](/en/rfq) because it affects quotation accuracy, production risk and delivery confidence.
Practical Review Checklist
- Verify cable pinout, length, connector keying, crimp quality and wire gauge against the drawing. - Check routing, bend radius, strain relief, clamp position and interference with heat or moving parts. - Confirm labels, serial numbers, color codes and customer packing requirements. - Run system-level functional tests that use the actual harness and enclosure interfaces. - Record failures by board, cable, connector and operator step so root cause is not blurred.