1. Application Scenarios:
Aerial installation (pole-mounted)
Underground direct burial
Duct and pipeline mounting
Wall-mounting or within handholes/manholes
Harsh outdoor environments (rated IP68)
Operating Temperature Range: –45°C to +65°C
Ingress Protection: IP68, UV-resistant, corrosion-proof
Applicable Cable Diameter: Up to φ20mm
2. Product Structure and Technical Specifications
2.1 Dimensions & Capacity
| Parameter | Specification |
|---|---|
| Dimensions (L × W × H) | 370mm × 178mm × 106mm |
| Weight (without packaging) | 1900g – 2300g |
| No. of Cable Ports | 4 ports (2 in, 2 out) |
| Cable Diameter Supported | ≤ φ20 mm |
| Fiber Capacity (Bunchy) | 12–96 cores |
| Fiber Capacity (Ribbon) | 72–288 cores |
2.2 Closure Composition
The GJS-H020 consists of the following main components:
Main Body (Housing) – Constructed from industrial-grade polycarbonate, the housing ensures excellent mechanical strength, weather resistance, and thermal stability.
Sealing System – Includes rubber sealing rings and gel-type sealing strips. Mechanical pressure and adhesive tape are applied for water/dust ingress protection.
Cable Entry Ports – Four round ports suitable for φ20 mm cables. Each port includes a removable rubber grommet for sealing when unused.
Splice Tray(s) – Typically 2–4 trays, each holding 12–24 splices, compatible with both heat shrink and mechanical splice sleeves.
Reinforced Cable Clamp – Internal bracket to secure cable strength members and relieve tension.
3. Tools Required for Installation
To properly install the GJS-H020 FOSC, the following standard fiber optic tools are needed (provided by the operator):
| Tool | Purpose |
|---|---|
| Pipe Cutter | Trimming and preparing cable ends |
| Electrical Cutter | Cutting through cable sheath layers |
| Cable Stripper | Stripping off the outer/inner cable jacket |
| Wrench (M6/M10) | Tightening bolts and reinforced nuts |
| Screwdrivers (Cross/Flat) | Fastening internal/external screws |
| Band Measuring Tape | Measuring cable length precisely |
Optional: Alcohol wipes, abrasive cloth, fusion splicer, heat gun
4. The Process of Installing FOSC
In the optical cable opening at the end of the 50mm, to keep the strengthening of the reinforcement bar.
Will need to be fused to disconnect the cable from the middle
Install and lock the cable in the cable sheath and attach the cable to the cable.
With electrical tape on the optical cable, the hoop protruding part the tight.
Select the outer diameter of the cable slightly larger than the sealing clip ring to cut off.
Place the end part of the rubber strip in the middle of the two sealing rings and use your finger to put the glue on the cable.
To maintain the natural state of the adhesive tape or a slight force, to make the wrapped layers of adhesive tape of clothing, with no obvious gap.
The cable has been installed on the sealing ring into the connection box and cable port.
will continue into the additional support slot box, coiled cable stripping, stored in the connection box before the space in the tower.
Cable coil stripping, stored in the connection box before the space in the tower
On the first disc groove, along the fiber protection groove after the hot melt pipe
Around. In case of need, the remaining length can be as shown in Figure 10
Word direction coil.
Close the upper and lower covers in proper order with the box body fastening buckle.
5. Performance Features
High Strength & Durability: Made from UV-resistant strengthened PC for long-term outdoor use.
IP68 Protection: Fully waterproof, dustproof, and corrosion-resistant.
Re-openable Design: Enables multiple openings without damaging seals.
Flexible Capacity: Suitable for multiple fiber configurations (ribbon or bunchy).
Tool-Free Re-entry: Simple mechanical locking, no heating tools required for sealing.
Universal Mounting: Supports wall, pole, handhole, and duct applications.
6. Quality Assurance & Testing
| Inspection Item | Requirement |
|---|---|
| Sealing Test | No leakage at 100 KPa pressure for 15 min underwater |
| Pull Strength | ≥800N in axial direction |
| Impact Resistance | 16N·m, 3 hits – no crack |
| Temperature Cycling | –45°C to +65°C, 10 cycles – no seal failure |
| Bending & Torsion | 150N tension at ±45°, 50N·m torsion at ±90° |
| Voltage Withstand | No arc or breakdown at DC 15KV for 1 minute underwater |
| Insulation Resistance | ≥2×10⁴ MΩ after 24h in water |
7. Packaging Information
Each GJS-H020 unit includes:
1× Fiber Optic Splice Closure (with housing & trays)
Sealing accessories (grommets, sealing tape, labels)
Installation manual
Optional: hanging hook, pressure valve, or additional trays
Conclusion
The GJS-H020 Horizontal Fiber Optic Splice Closure is an essential solution for mid-span splicing, distribution, and trunk cable management in FTTx, long-haul backbone, and metro networks. Its rugged design, high sealing reliability, and easy installation make it a preferred choice for telecom carriers, ISPs, and engineering contractors seeking long-term performance and fast deployment.
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