Existing out of 12 tubes with a diameter of 2. 5mm with 288 fibers (12t x 24f) MM OM2. For outdoor and indoor use in structured (data) wiring systems such as industrial backbone, campus backbone, building backbone (riser) and/or horizontal cabling. It features a 288-fiber ribbon construction with 12 active subunits and 24 fibers per subunit, using TIA-598-D color coding for consistent identification. Providing high-fiber-counts in a rugged, compact design, the enhanced coupling features ensure the ribbon stack and cable act. elly-filled loose tubes (24 fibres per tube). Surface printing i s/micro-ducts via hauling/blowing techniqu g/km. D "LWP", 1E = SM premium G. This 288 core CST fibre cable has a corrugated steel tape CST and a CSM, flame retardant sheath.