Scope of application
This Installation Manual is suitable for the Fiber Optic Splice Closure (hereafter abbreviated as FOSC), guiding proper installation.
The scope of application is: aerial, underground, pipeline, and handhole. The ambient temperature ranges from -40 to 65℃.
Basic structure and configuration
Dimension and capacity
| Outside dimension (LxWxH) |
320×210×85 (mm) |
|
Weight (excluding outside box) |
2650g – 2800g |
|
Number of inlet/outlet ports |
3 (pieces) on each side |
|
Diameter of fiber cable |
Φ8-Φ20 (mm) |
|
Capacity of FOSC |
Bunchy: 12-120 (Cores) |
Main components
| No. |
Name of components |
Quantity |
Usage |
Remarks |
|
|
1 |
Housing(bottom) |
1 set |
Protecting fiber cable splices in the whole |
Internal diameter: |
|
|
2 |
|
Housing(cover) |
1 set |
Protecting fiber cable splices in the whole |
Internal diameter: |
|
3 |
Fiber optic splice tray |
Max 8 trays (bunchy) or 6 trays(ribbom) |
Fixing the heat-shrinkable protective sleeve and holding fibers |
|
|
|
4 |
Seal fitting |
1 set |
Sealing between the FOSC cover and the FOSC bottom |
|
|
|
5 |
Port plug |
6 pieces |
Sealing empty ports |
|
|
|
6 |
|
Fixed bolt |
1 set |
Fixing the housing |
|
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 a protective coat |
Configuration as per capacity |
|
3 |
Insulation tape |
1 roll |
Enlarging the diameter of the fiber cable for easy fixing |
|
|
4 |
Seal tape |
1 roll |
Enlarging the diameter of the fiber cable, which fits in with the seal fitting |
Configuration as per specification |
|
5 |
Hanging hook |
1 set |
For aerial use |
|
|
6 |
Earthing wire |
1 piece |
Putting through between the earthing devices |
|
|
7 |
Abrasive cloth |
1 piece |
Grind the fiber |
|
|
8 |
Labeling paper |
1 piece |
Labeling fiber |
|
|
9 |
M6 Special wrench |
1 pieces |
Fixing small bolts of housing |
|
|
10 |
M10 Special wrench |
1 pieces |
Tightening the nut of the reinforced core |
|
|
11 |
Instruction manual |
1 pieces |
standard installation |
|
package
NO. |
specification |
carton size(cm) |
capacity |
N.W |
Remarks |
|
1 |
inner box |
33*23*10.5 |
1pcs |
2.75-2.9kg |
Configuration as per weight |
|
2 |
outer box |
73*35*45 |
12pcs |
33-34.8kg |
Configuration as per weight |
The process of installing FOSC
Step 1 – Open the Closure
Clean the installation area and confirm the location for placing the FOSC.
Check all components and accessories inside the package.
Loosen the fixing bolts and lift them to open the closure (no need to completely remove them).
See Drawing 1
Note: If the weather is bad, set up a tent for waterproof and dustproof protection.
Step 2 – Prepare Cable Lengths
Recommended internal cable lengths:
45 mm: From sealing port to pressboard
1750 mm: Fiber length for splicing and storage
150 mm: From fixing point to tray fixing point
1600 mm: Bare fiber length for tray routing
See Drawing 2
Note: Adjust stripping lengths as needed. Always reserve enough cable for splicing.
Step 3 – Strip the Cable
Use cutters and strippers to remove the protective coating. Refer to Drawing 2.
See Drawing 3
Note: If difficult to strip in one go, do it section by section to avoid fiber damage.
Step 4 – Prepare Fiber Cores
Wrap two layers of insulation tape around the cable jacket.
Remove filling material, clean fibers, form a coil (~100 mm), and secure with tape.
Choose inlet/outlet ports based on cable quantity (max 6 cables).
Port size compatibility:
Port A: ≤ 20 mm
Port B: ≤ 16 mm
Port C: ≤ 13 mm
If the cable is thinner than the port, enlarge the diameter with sealing tape. Use marked paper (Hole A/B/C) to measure.
Reserve 40 mm of the strength member; trim excess.
See Drawing 4
Note: Before using sealing tape, clean cable with abrasive cloth and alcohol.
Step 5 – Fix the Cable
Remove port plugs, pressboard, and strength member nut.
Secure the cable with the pressboard (use tape if needed).
Tighten the nut using a plastic wrench, then retighten with a metal wrench.
See Drawing 5
Step 6 – Splice the Fibers
Follow the fusion splicing machine instructions.
Note: Avoid bending or twisting fibers.
Step 7 – Install Sleeves & Route Fibers
After splicing, house the first fiber ring at the far end of the tray.
Coil remaining fibers (≥ 80 mm diameter) and insert into tray with heat shrink sleeves.
Fix sleeves in place first, then adjust fiber rings.
See Drawing 6
Note: Keep fibers smooth and untwisted.
Step 8 – Final Check
Ensure fibers are neatly spliced and routed within bend radius limits.
Tighten all internal fasteners.
Seal unused ports with plugs.
Control seal tape amount.
Seal fittings should be smooth and clean.
Properly install the closure cover.
See Drawing 7-1
Step 9 – Key Features
Enables splicing of main and branch cables, and connection with drop cables or pigtails-no extra distribution units needed.
Fast expansion with slide-in tray design (90° opening).
Supports FC, SC, ST, or LC adapter panels.
Made of durable, high-strength PC plastic; operates at -40°C to +65°C.
Patented elastic seal ring is reusable and resealable.
Supports wall and pole mounting, ideal for FTTH deployments.
See Drawing 7-2
Step 10 – Final Assembly
Properly align and close the FOSC housing.
Insert and tighten the locating bolt using the special wrench.
For aerial/wall use, attach the hanging hook and secure the side bolts.
Recheck and tighten all bolts.
See Drawing 8
Note: Clean the housing and follow the steps carefully.
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