... structure ,easy installation ,for indoor useRack Mounted Fiber optic terminal box capacity: 12,24,32,48,64,72,96 splices. ... SC, adapter etc. Rack Mounted Fiber optic terminal boxOptical Terminal Box (OTB) is mainly used for connecting the indoor/outdoor optical ... layout, and has adequate room for operation; 5.5 Adjustable clamp seal ring and reinforce configuration, which could adjust different sizes ...