1. Establish the document baseline.
Include the assembly drawing, revision, wire list, connector pinout, and BOM. Make part numbers and approved alternatives explicit. A clear revision prevents suppliers from quoting different designs. Where a drawing is preliminary, identify what may change.
2. Specify the connection system.
List connector housings, terminals, seals, wire gauge, insulation, color, and required lengths. Explain shielding, twisting, splices, sleeves, labels, and routing constraints. If substitutions are allowed, require the supplier to identify each proposed change.
3. Define how the assembly will be accepted.
Identify the required electrical and mechanical tests, inspection records, sampling expectations, and labeling. Clarify who provides fixtures and who approves the first article. Reference a standard only where it applies and specify the required edition and acceptance criteria.
- Continuity and pinout verification
- Crimp inspection and specified pull testing
- Insulation or dielectric tests where required by the design
- Traceability, first-article records, and packaging inspection
4. Make the commercial assumptions visible.
Request prices at defined quantities, tooling and fixture charges, minimum order quantities, sample timing, and production lead times. Ask whether quoted materials are in stock or depend on supplier lead times. State the requested delivery terms and quote currency.
5. Compare exceptions before prices.
Create a comparison that includes exclusions, substitutions, test scope, and one-time costs. Resolve technical deviations before treating two quotes as equivalent. Arxline can help coordinate this clarification with Vietnamese manufacturers.