FC-FC Type: Commonly known as circular to circular tail fiber, typically used for jumpers between ODF racks. A fiber optic connector is a mechanical device used to align and join optical fibers, enabling light to pass through with minimal loss. Unlike fiber splicing, which is permanent, connectors allow for easy connection and disconnection of cables, making them ideal for maintenance and flexibility in. FC Connectors, also known as Ferrule Core Connectors, are often referred to by various names like "Fiber Channel" or "Frank Charlie" in the industry. Developed by NTT (Nippon Telegraph and Telephone) in the late 1970s as the "Field-Assembly Connector," FC Connectors were the first to feature a. While the small size of fibre optic connectors does not mean they play a minor role, the type of connector you use affects the overall efficiency of light transmission across the fibre network. Widely used in early SBS and Optix devices. Each type varies by shape, polish (APC, PC, or UPC), and return loss performance, which affect PC, UPC, and APC Polish Styles: What's the. Index of Refraction (IOR): A measurement of the speed of light in a particular medium.