This is a yellow 1000 foot spool of indoor/outdoor plenum rated fiber optic distribution cable intended for long distance runs at high speeds. It is composed of 6 single-mode fibers (9 micron core) inside a water blocking aramid yarn wrapped in a yellow PVC outer jacket. Single mode fiber is optimized to work with fiber optic equipment using light wave lengths of 1310nm (nano meters) or 1550nm. The cladding diameter is 125 microns. The core and cladding of our yellow bulk indoor/outdoor fiber optic cable is constructed using a high quality Prysmian Bendbright single-mode fiber that is ITU-T G.652.D/G.657.A1 compliant and backward compatible with other legacy single-mode fibers.
This particular cable is Plenum Rated. Plenum spaces are the area between floors or above office areas for heating/cooling airflow. If an office were to catch fire, this plenum area could easily allow the spread of the fire to more floors or across the entire building. Plenum rated cables are jacketed with a fire-retardant plastic jacket of either a low-smoke polyvinyl chloride (PVC) or a fluorinated ethylene polymer (FEP) for less toxicity during a fire.
