When terminating a fiber optic cable, which connector type might be commonly used?

The commonly used connector type for terminating a fiber optic cable is the SC (Subscriber Connector). The SC connector is designed specifically for high-performance optical fiber applications, providing low insertion loss and high return loss. It features a push-pull coupling mechanism which allows for easy and reliable connections, making it a preferred choice in both single-mode and multi-mode fiber installations. Its square shape also enhances compatibility and placement in densely packed environments, such as patch panels or network junctions.

In contrast, the other options listed are not utilized for fiber optic connections. RJ45 connectors are standard for Ethernet and copper cabling, USB connectors are primarily used for connecting peripherals and data transfer between devices, and DIN connectors are typically used for audio, video, and power transmission in various applications. The focus on fiber optics necessitates the use of specialized connectors like the SC, which are optimized for the unique properties of light transmission through fiber cables.