
4 in 4 out Fiber Optic Splice Clousure Joint Closure Box
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Joint Closure Box


Joint Closure Box suits for the Fiber Optic Splice Closure (Hereafter abbreviated as FOSC), as the guidance of proper installation. The scope of application is: aerial, underground, pipeline, hand-holes. The ambient temperature ranges from -40℃ to 65℃.
Specifications
Outside dimension (Height x Diameter) | 288mm×178mm |
Weight (excluding outside box) | 1800g—1910g |
Number of inlet/outlet ports | 4 pieces |
Diameter of fiber cable | Φ8mm~Φ16 mm |
Capacity of FOSC | Bunchy: 4-48 (cores) |
Main components of Joint Closure Box
No. | Name of components | Quantity | Usage | Remarks |
1 | FOSC cover | 1 piece | Protecting fiber cable splices in whole | Height x Diameter 208mm x 132mm |
2 | Fiber optic splice tray (FOST) | Max. 4 trays (bunchy) | Fixing heat shrinkable protective sleeve and holding fibers | Suitable for: Bunchy:4,6,8,12,(cores) |
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 |
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 | Earthing wire | 1 piece | Putting through between earthing devices | To put through as per actual requirement |
4 | Abrasive cloth | 1 piece | Scratching fiber cables | |
5 | Labeling paper | 1 piece | Labeling fibers | |
6 | Special wrench | 2 pieces | Installing and tightening nut of reinforced core and nut (plastic) of inlet/outlet tube | |
7 | Measuring paper | 1 piece | To measure perimeter, of which its diameter is enlarged with seal tape | To measure perimeter with the corresponding measuring paper |
8 | Seal tape | 1 ring | Enlarging diameter of fiber cable which fits in with gasket ring. | Configuration as per specification |
9 | Insulation tape | 1 ring | Enlarging diameter of fiber cable for easy fixing | |
10 | Metal hoop | 1 set | For wall mounting and pole hugging | |
11 | Buffer tube
| decided by customers | Hitched to fibers and fixed with FOST, managing buffer. | Configuration as per requirement |
12 | Desiccant | 1 bag | Put into FOSC before sealing for desiccating air |

Our 4 in 4 out Fiber Optic Splice Clousure Joint Closure Box has been known for its good quality and have been one of our main products. All of our employees take the goal as the guide, emphasize the result, and maintain the consistency and attainability of the goal and the result. We are drawing on and integrating the excellent culture and advanced experience of our partners, so as to achieve cooperative development and mutual benefit between the enterprise and its stakeholders.
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