Sumitomo Electric Lightwave’s 4th Level® Indoor/Outdoor Ribbon Interlocking Armored Gel-Free Riser fiber optic cables feature 250μm color-coded optical fibers for easy fiber identification and Sumitomo’s exclusive patented easy split and peel technology for easy fiber access and unprecedented ease of handling and splicing. The twelve fiber ribbon subunits enable connectorization with both MPO and all industry standard connectors. The non-preferential bend axis allows for easy installation in space constrained areas. Interlocking armor adds protection against crushing forces. Flexible dielectric strength members within the cable core provide mechanical durability within a flame retardant jacket and the non-preferential bend axis allows for easy installation in space constrained areas. The Cables meet UL 1666 and CSA FT4 specifications and are available in all fiber types.