288F Vertical Fibre Optic Cable Joint Box/ Dome Type Optical Fibre Splice Closure, for splicing up to 7 cables, maximum cable size: up to diameter 38mm. Maximum capacity :Up to 288Cores. Vertical Fiber Optic Splice Closure FOSC V768 is widely applied to the splicing, distributing variable optical. Outdoor Seal 288 Fiber Optic Cable Connection Box 144 192 216 576 Fiber Optic Head Welding Vertical Cap Type IP68. There are two connection ways: direct connection and splitting connection. It can be installed on aerial, in manholes, ducts and mounted on poles. The. Still deciding? Get samples first! Order sample Still deciding? Get samples first! Order sample.