Features: 1) Vertical type 2) Hoop is used to fix and seal FOSC cover and base 3) Provided with 4 fiber cable inlet/outlet ports 4) Simple installation 5) FOSC is suitable for protecting fiber cable splices in straight-through and branching applications 6) Can be placed in aerial, underground, wall-mounting and wall-mounting in hand hole and duct applications 7) Based on an advanced formula 8) Plastic parts are made of injection-molded, high-strength engineering plastic PC by numerical control equipment 9) Can effectively prevent products from aging caused by coldness, heat, oxygen and ultraviolet radiation 10) The strong housing and main components provide fire resistant, waterproof, and quakeproof properties while protecting splices during pulling, torsioning and impacting 11) Ensures long-term reliability and usage works under ambient temperature from - 40 to +60oC 12) Advanced internal structure design 13) Easy and fast to fix fiber cable 14) Easy to re-enter, and never requires re-entry kits 15) The closure is spacious enough for winding and storing fibers 16) With Fiber Optic Splice Tray (FOSTs) 17) Slide-In-Lock and its opening angle is above 90o 18) The curved diameter meets the international standard 19) Easy and fast to increase and reduce FOSTs 20) Innovative elastic integrated seal fitting 21) Easy and convenient for installation, maintenance and reuse 22) The earthing deriving device can be installed on the housing of FOSC for deriving metallic parts of fiber cable for earthing connection 23) Pressure testing valve can be installed as well for pressure testing and sealing testing after injecting air 24) Outer dimensions: 415x 190mm 25) Consists of one set of elastic integrated seal fitting with 4 inlet/outlet ports 26) Diameter of 4 ports: 16mm 27) The inlet/outlet ports can be decided according to quantity and diameters of fiber cables to be actually installed, then the corresponding port plugs should be taken out 28) Maximum 4 pieces of fiber cable can be inserted 29) With installation accessories: FOSC seal tape, insulation tape, 1 piece of special wrenches, abrasive cloth, earthing wire, nylon tie, labeling paper, measuring paper and 1 set of metal hoop 30) Optional accessories: earthing deriving device, pressure testing valve and buffer tube