Multimode fiber and the Fiber OneShot™

The Fiber OneShot™ Length Meter measures the length of SINGLEMODE fiber optic cables and can show the distance to a break or a bad connection on the fiber. It will not measure a splice loss, connector loss, bend loss, or fiber attenuation. For that, you would use an Optical Time Domain Reflectometer.

What about multimode fiber?
On certain multimode links, the Fiber OneShot will appear to work. But performance cannot be guaranteed due to possible mode scrambling. When encountering connectors, the propagated light will be scattered into multiple modes. This can result in sporadic length reporting on multimode fiber links.