Which of the following is the most common usage for OM1 fibers?

The most common usage for OM1 fibers is in short-run applications in buildings. OM1 fiber is a type of multimode fiber that typically has a core diameter of 62.5 micrometers. This specification makes it suitable for short-distance data transmission, primarily within the confines of a building or campus environment.

OM1 fibers are designed for lower bandwidth applications and are typically used for connections over distances up to 300 meters for 1 Gigabit Ethernet and up to 33 meters for 10 Gigabit Ethernet. This makes them ideal for internal networking needs within buildings, where high bandwidth over long distances is not as crucial compared to the shorter runs that OM1 can efficiently handle.

In contrast, high-speed internet connections, voice over IP applications, and long-haul data networking often require higher bandwidth capabilities and longer distance performance, making other types of fibers, such as OM3, OM4, or single-mode fibers, more appropriate for those uses. These fibers offer greater bandwidth capacity and longer transmission distances, which are essential for high-performance networking environments.