Optical fiber is the primary medium for facilities, datacenters and campus networks to transfer mass amounts of data. Fiber certifiers inspect fiber optic cables, determining whether light is being passed through the cables correctly. Demand for faster network speeds and wider bandwidths is increasing exponentially, and the fiber optic industry is growing in response, meaning fiber optic certification testing is more vital than ever to the telecommunications industry. Inspecting and cleaning fiber cables with a certifier will give consumers higher data rates as long as the attenuation via connectors, adaptors and splices are very low, incentivizing cable care. Common issues with fiber cables include bad splices, damage and contamination. A fiber certifier will identify the nature of such faults and locate the source for engineers, and fulfill standards like IEEE, TIA/EIA and ISO/IEC.