While a cut or damaged fiber optic cable can temporarily take your network down, it is possible to quickly fix the cable with the right tools. This guide covers the essential tools and step-by-step procedures for low-loss fiber optic cable repair. Following an accidental cut, contacting your internet provider for assistance is a. The main line often connects to the ONT via a short, pre-terminated patch cord (jumper cable), typically featuring an SC or LC connector. If this patch cord is damaged, a homeowner can safely purchase and replace it to restore service, provided it matches the specific connector type and polish. Here are the steps to repair a cut fiber cable. To do this, you can use an OTDR, Optical Time Domain, Reflectometer.