High-density Commscope FIST-SOSA2 rack mount fiber splice tray. IEC, TIA/EIA, RoHS compliant. Fiber optic splice closures, trays and modules for indoor and outdoor applications. How many Core Cases can a helicopter carry? Our purpose is to add value to the production process of the largest natural resource extraction companies. The. Custom designed, high quality cable tray systems which are reliable, robust and cost effective. Holds fusion or mechanical splice sleeves. Coyote, Starfighter, Lite-Grip, Type 2S, 2R, 2M, 4A, 4R, 4S, and more.