Commercial sourcing scope
Drop cable connects the distribution network to the subscriber and often passes through the most bend-sensitive, handling-intensive part of the route. A commercial specification should distinguish indoor, outdoor, duct, façade and aerial sections rather than using one description for every installation.
Confirm flat or round construction, fiber count, G.657 grade, strength-member material, self-supporting messenger if required, sheath type, color, print legend, nominal cable size, tensile and crush requirements, delivery length and pre-connectorization.
Specification and selection table
| Decision item | What to confirm |
|---|---|
| Indoor route | Confirm flame, smoke and local building requirements |
| Outdoor route | Confirm UV, moisture and temperature exposure |
| Bend-sensitive route | Select compatible G.657 fiber and installation radius |
| Termination | Field connector, splice or factory connectorized end |
Standards and engineering interpretation
ITU-T G.657 addresses bend-insensitive single-mode fiber characteristics. Cable construction and mechanical acceptance are specified separately through the applicable cable standard and customer requirement.
For broader technical context, review fiber optic cable types and our quality-assurance method.
Information to send for a quotation
- Application and installation environment
- Complete product construction or drawing reference
- Optical, mechanical and environmental limits
- Applicable standard, edition and customer-specific clauses
- Required test records and acceptance method
- Quantity, packaging, destination and delivery schedule
