1000ft Black Plenum-Rated Indoor/Outdoor Singlemode Fiber Optic Cable — 2-Fiber (9/125, ITU-T G.652.D) on Spool

Bulk 1000 foot spool of black indoor/outdoor fiber optic distribution cable, plenum rated for safe installation in air-handling spaces and built for long-distance, high-speed links. The cable contains 2 singlemode fibers with a 9 micron core and a 125 microns cladding diameter, surrounded by water-blocking Aramid yarn and finished with a black PVC outer jacket. The fiber is optimized for transmission at 1310nm or 1550nm and the core/cladding construction meets ITU-T G.652.D specifications while remaining backward compatible with older singlemode fibers. Plenum rating means the cable is suitable for installation in plenum spaces — the areas between floors or above office ceilings used for heating/cooling airflow — where fire can more easily spread; plenum jackets are made from fire-retardant materials such as low-smoke polyvinyl chloride (PVC) or a fluorinated ethylene polymer (FEP) to reduce toxicity in the event of a fire.