Universal fiber optic indoor/outdoor cables with a central loose tube serve as house entry cables for direct underground or pipe laying and as flame-retardant riser cables indoors, the central arrangement of the fibers allows a cost-effective and thin cable structure, the cables are UV-resistant, metal-free, longitudinally watertight, tensile, rodent-proof, halogen-free and flame-retardant and suitable for both indoor installation and direct underground installation (in an appropriate sand bed)
