What is an expanded beam connector primarily used for?

An expanded beam connector is primarily used for outdoor applications due to its design, which allows for enhanced performance in harsh environmental conditions. These connectors use an expanded beam of light that is less susceptible to dirt, dust, and moisture ingress, making them ideal for outdoor installations where exposure to the elements can be a significant concern. The optical design minimizes the impact of contamination on the fiber ends, ensuring reliable signal transmission even in challenging conditions.

In contrast, while internal applications might use other types of connectors, they do not necessitate the robust design feature that expanded beam connectors offer, which provides heightened resilience against environmental factors. High-frequency signals relate more to the electrical characteristics of cables rather than the physical connection method employed, and easy cleaning indoors is not a primary focus for the design and functionality of expanded beam connectors since they are optimized for outdoor use.