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Technology evolves at a rapid-fire pace. That’s why we’ve built an easy-to-use glossary to help you better understand the terms, technologies and trends that impact your business.


Acronym for: Optical loss test set

An OLTS is a dual-ended tool (i.e. one requiring two technicians) that quickly tests for the total amount of loss on the fiber link, measuring length and optical return loss and validating continuity.