Where selection starts
Pretermination moves assembly work earlier and makes route definition an earlier decision too. Confirm overall length, branches, cabinet entry and installation sequence before releasing the drawing.
- Decision to make
- Record length datums and check whether the breakout end can pass through the route and cabinet entry.
- Record to prepare
- Drawing with breakout lengths and port labels, packing sequence and site acceptance checklist.
Topic-specific checks
- Define length measurement datums, breakout lengths, pulling direction and cabinet entry; check the site route against the approved drawing.
- Agree port labels, packing sequence, protection and incoming-inspection records so each assembly maps to its installation location.
Four-step selection check
- Define the actual interfaces and mating parts at both ends
- Record fiber type, count, channel map and polarity
- Confirm length, bend routing, breakout, jacket and environment
- Agree samples, test method, limits and data format
Evidence to request when sourcing
Request drawings, material boundaries, test methods, sample records and batch traceability that match the purchased revision. Certification marks, performance values and environmental ratings matter only when they map to a specific product revision.
This guide is a selection framework, not a substitute for equipment specifications, applicable standards or the approved project drawing.