Indoor/Outdoor Fiber Optic Cables | Corning

These are cables that are designed to meet both the rigorous environment of the outdoors but also can be routed indoors, where flame rating requirements also apply. This type of indoor outdoor cable eliminates the need for a “transition splice” to an indoor-rated cable when routing an outdoor cable into the building. When routing cables within a building, you will also need to factor in fire prevention requirements. These requirements differ per country and region of the world.