288 Cores Dome Heat Shrinkable Seal Fiber Optic Splice Closure (FOSC)Scope of applicationThis Installation Manual suits for the Fiber Optic Splice Closure (Hereafter abbreviated as FOSC), as the guidance of proper installation.
The scope of application is: aerial, underground, wall-mounting, duct-mounting and handhole- mounting. The ambient temperature ranges from -40ºC to +65ºC.
2. Basic structure and configuration
2.1 Dimension and capacity
| Outside dimension (Height x Diameter) | 515mm×310mm |
| Weight (excluding outside box) | 3000 g- 4600g |
| Number of inlet/out ports | 7 pieces in general |
| Diameter of fiber cable | Φ5mm~Φ38 mm |
| Capacity of FOSC | Bunchy: 24-288(cores), Ribbon: up to864(cores) |
2.2 Main components
| No. | Name of components | Quantity | Usage | Remarks |
| 1 | FOSC cover | 1 piece | Protecting fiber cable splices in whole | Height x Diameter
360mm x 177mm |
| 2 | Fiber optic splice tray (FOST) | Max. 12 trays (bunchy)
Max. 12 trays (ribbon) | Fixing heat shrinkable protective sleeve and holding fibers | Suitable for: Bunchy:12,24(cores) Ribbon:6 (pieces) |
| 3 | Fiber holding tray | 1 pcs | Holding fibers with protective coat | |
| 4 | Base | 1set | Fixing internal and external structure | |
| 5 | Plastic hoop | 1 set | Fixing between FOSC cover and base | |
| 6 | Seal fitting | 1 piece | Sealing between FOSC cover and base | |
| 7 | Pressure testing valve | 1 set | After inject air, it is used for pressure testing and sealing testing | Configuration as per requirement |
| 8 | Earthing deriving device | 1 set | Deriving metal parts of fiber cables in FOSC for earthing connection | Configuration as per requirement |
2.3 Main accessories and special tools
| No. | Name of accessories | Quantity | Usage | Remarks |
| 1 | Heat shrinkable protective sleeve | | Protecting fiber splices | Configuration as per capacity |
| 2 | Nylon tie | | Fixing fiber with protective coat | Configuration as per capacity |
| 3 | Heat shrinkable fixing sleeve (single) | | Fixing and sealing single fiber cable | Configuration as per requirement |
| 4 | Heat shrinkable fixing sleeve (mass) | | Fixing and sealing mass of fiber cable | Configuration as per requirement |
| 5 | Branching clip | | Branching fiber cables | Configuration as per requirement |
| 6 | Earthing wire | 1 piece | Putting through between earthing devices | |
| 7 | Desiccant | 1 bag | Put into FOSC before sealing for desiccating air | |
| 8 | Labeling paper | 1 piece | Labeling fibers | |
| 9 | Special wrench | 1 piece | Tightening nut of reinforced core | |
| 10 | Buffer tube
| decided by customers | Hitched to fibers and fixed with FOST, managing buffer. | Configuration as per requirement |
| 11 | Aluminum-foil paper | 1 piece | Protect the bottom of FOSC | |
3. Necessary tools for installation
3.1 Supplementary materials (to be provided by operator)
| Name of materials | Usage |
| Scotch tape | Labeling, temporarily fixing |
| Ethyl alcohol | Cleaning |
| Gauze | Cleaning |
3.2 Special tools (to be provided by operator)
| Name of tools | Usage |
| Fiber cutter | Cutting off fiber cable |
| Fiber stripper | Strip off protective coat of fiber cable |
| Combo tools | Assembling FOSC |
3.3 Universal tools(to be provided by operator)
| Name of tools | Usage and specification |
| Band tape | Measuring fiber cable |
| Pipe cutter | Cutting fiber cable |
| Electrical cutter | Take off protective coat of fiber cable |
| Combination pliers | Cutting off reinforced core |
| Screwdriver | Crossing/Paralleling screwdriver |
| Scissor | |
| Waterproof cover | Waterproof, dustproof |
| Metal wrench | Tightening nut of reinforced core |
3.4 Splicing and testing instruments (to be provided by operator)
| Name of instruments | Usage and specification |
| Fusion Splicing Machine | Fiber splicing |
| OT DR | Splicing testing |
| Provisional splicing tools | Provisional testing |
| Fire sprayer | Sealing heat shrinkable fixing sleeve |
Notice: The above-mentioned tools and testing instruments should be provided by the operators themselves.
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