A fiber fast connector, also known as a mechanical splice or cold connector, is a field-installable connector that terminates fiber optic cables without requiring a fusion splicer. This comprehensive guide covers SC/APC vs SC/UPC fast connectors, selection criteria, installation best practices, compatibility considerations, and application-specific. A fiber optic connector is a mechanical device used to align and join optical fibers, enabling light to pass through with minimal loss. Unlike fusion splicing, which uses heat to join two optical fibers together, cold connection uses mechanical means to create a stable and low-loss connection. Corning UniCam® high-performance connectors offer best-in-class optical. 6 Strand Fiber Optic Buffer Tube Fan-Out Kit 25" Long.