Infield installations, splicing is a faster and more efficient method and is used to restore fiber optic cables when a buried cable is accidentally severed. There are 2 methods of splicing, mechanical or fusion. Both methods provide much lower insertion loss compared to fiber. In this guide, we cover the basics of fiber optic splicing, how to perform splicing using two different methods, and finally some best practices to perform good fiber splicing. For network managers and technicians, a poor splice can lead to significant signal degradation, network downtime, and costly troubleshooting.