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FIST Fiber Splice Closure is an IP68-rated dome type fiber optic closure designed for outdoor fiber splicing and cable protection in FTTH, FTTx, telecom, CATV, and broadband networks. Available in 288F, 336F, 480F, and 672F capacities, it provides waterproof sealing, high-density fiber management, and long-term outdoor reliability.
Product Overview
Fiber Splice Closure is a high-capacity outdoor fiber optic protection enclosure used for fiber splicing, cable branching, and fiber distribution in FTTH, FTTx, CATV, enterprise broadband, and telecom backbone networks. Designed with a dome-to-base sealing structure, this Fiber Splice Closure provides stable long-term protection for optical fibers in harsh outdoor environments.
Manufactured using scientifically formulated engineering plastic with injection molding technology, the closure offers excellent anti-aging, anti-corrosion, flame-retardant, waterproof, anti-vibration, and anti-shock performance. The sealed clamp and O-ring system helps prevent moisture ingress and environmental contamination, ensuring stable optical transmission and long-term network reliability.
This Fiber Splice Closure supports overhead installation, pole mounting, wall mounting, and direct buried deployment. Multiple splice tray configurations are available to support flexible network expansion from 288F to 672F capacities. The hinged tray structure allows maintenance personnel to access individual splice trays without disturbing adjacent fibers, significantly improving installation efficiency and reducing maintenance risks.
Widely used by telecom operators, ISPs, broadband contractors, and fiber network integrators, this Fiber Splice Closure is engineered for high-density outdoor fiber management and scalable network deployment.
Key Features
High-capacity Fiber Splice Closure supporting up to 672 fiber splices
Dome-to-base sealing structure with clamp and O-ring protection system
Excellent waterproof, anti-corrosion, flame-retardant, and UV-resistant performance
Hinged splice tray design allows easy maintenance without disturbing other trays
Suitable for overhead, wall-mounted, pole-mounted, and direct buried installation
Fiber Splice Closure supports multiple cable entry configurations for flexible deployment
Engineered for FTTH, FTTx, CATV, ODN, and telecom backbone networks
Reliable mechanical strength with high axial tension and flatten resistance
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Fiber Splice Closure / FOSC |
| Closure Structure | Dome Type |
| Material | Engineering Plastic |
| Fiber Capacity | 288F / 336F / 480F / 672F |
| Tray Capacity | 12 Fibers per Tray |
| Max Tray Quantity | 24 / 28 / 40 / 56 pcs |
| Installation Type | Pole Mount / Wall Mount / Aerial / Direct Buried |
| Sealing Method | Clamp + O-ring System |
| Connector Type | Fusion Splice Protection |
| Fiber Type | Single Mode / Multi Mode |
| Working Temperature | -40°C to +65°C |
| Atmospheric Pressure | 62~106 KPa |
| Axial Tension | >1000N / 1min |
| Flatten Resistance | 2000N / 100mm |
| Insulation Resistance | >2×10⁴ MΩ |
| Voltage Strength | 15KV (DC) / 1min |
| Waterproof Protection | Outdoor Waterproof Design |
| Standards Compliance | Telecom Outdoor Fiber Protection Requirements |
Product Variants
Fiber Capacity Options
288F Fiber Splice Closure
336F Fiber Splice Closure
480F Fiber Splice Closure
672F Fiber Splice Closure
Base Port Configurations
1+16 Port Base
1 oval port for 2 pcs 10~30mm cable
8 middle round ports for 6~21mm cable
8 small round ports for 6~16mm cable
1+6 Port Base
1 oval port for 2 pcs 10~30mm cable
6 round ports for 6~33mm cable
Supported Fiber Types
G652D Single Mode Fiber
G657A1/A2 Bend Insensitive Fiber
Multi-mode Fiber
Installation Options
Pole Mounting
Wall Mounting
Aerial Mounting
Direct Buried Installation
Optional Accessories
Pole mounting kits
Wall mounting kits
Aerial mounting kits
Grounding kits
Heat-shrink sealing kits
Branch-off clips
Fiber Splice Closure Applications
FTTH and FTTx Networks
Used for feeder cable splicing, distribution cable branching, and subscriber fiber management in FTTH access networks.
Telecom Backbone Networks
Provides protected fiber splicing and cable branching for metropolitan and long-distance telecom infrastructure.
CATV Broadband Systems
Supports optical fiber distribution and cable protection in CATV and broadband transmission networks.
ODN (Optical Distribution Network)
Suitable for optical distribution nodes requiring scalable fiber management and outdoor protection.
Enterprise Broadband Infrastructure
Used in campus networks, industrial communication systems, and enterprise fiber backbone deployment.
Data Center Interconnection
Supports outdoor fiber transition and campus interconnection applications.
Product Advantages
| Advantage | Description |
|---|---|
| High Density | Supports up to 672 fiber splices in a compact enclosure |
| Fast Deployment | Hinged trays simplify installation and maintenance |
| Low Installation Cost | Multiple mounting methods reduce deployment complexity |
| Reliable Sealing | O-ring and clamp system ensures waterproof performance |
| Scalability | Flexible tray and port configurations support future expansion |
| Low Insertion Loss Risk | Stable splice management protects optical transmission quality |
| Long-Term Durability | Resistant to UV, moisture, corrosion, vibration, and impact |
| Outdoor Reliability | Designed for harsh telecom deployment environments |
Comparison Table
| Feature | This Product | Traditional Solution |
|---|---|---|
| Fiber Capacity | Up to 672F | Limited capacity |
| Environmental Protection | Waterproof and anti-corrosion | Basic enclosure protection |
| Tray Access | Hinged tray access | Full tray disturbance during maintenance |
| Installation Flexibility | Pole, wall, aerial, buried | Limited installation methods |
| Network Scalability | High scalability | Difficult expansion |
| Maintenance Efficiency | Easy tray access | Time-consuming maintenance |
| Outdoor Reliability | High | Medium |
Product Models and Dimensions
| Model | Size | Max Tray Qty | Tray Capacity | Max Splice Capacity |
|---|---|---|---|---|
| FIST-288F | 508 × 310.3 mm | 24 pcs | 12F | 288F |
| FIST-336F | 508 × 310.3 mm | 28 pcs | 12F | 336F |
| FIST-480F | 560 × 310.3 mm | 40 pcs | 12F | 480F |
| FIST-672F | 679 × 310.3 mm | 56 pcs | 12F | 672F |
Accessories Details
| Accessory | Quantity |
|---|---|
| Dome | 1 pc |
| Base | 1 pc |
| Clamp | 1 pc |
| Splice Tray | Based on splice capacity |
| Modified O-ring | 1 |
| Cable Strength Member Attach Plate | 1 set |
| Velcro Strip with X Flake | 2 |
| Optic Joint Protection Tube | Based on splice capacity |
| Ground Feed-through Lug | Optional |
| Shield Continuity Wire | Optional |
| Cleaning Tissue | Optional |
| AMP Clamp | Optional |
| Desiccant | Optional |
| Nylon Tie & Transparent PE Tube | Max. 1 bag |
| Heat-shrink Tube for Round Ports | Based on round port quantity |
| Heat-shrink Tube for Oval Port | 1 |
| Abrasive Tape | Included |
| Aluminum Foil | Included |
| Branch-off Clip | 1 |
Related Products
FAQ
What is Fiber Splice Closure?
Fiber Splice Closure is an outdoor enclosure designed to protect optical fiber splicing points from moisture, dust, corrosion, and mechanical damage.
What is a 288F Fiber Splice Closure?
A 288F Fiber Splice Closure supports up to 288 fiber splices using multiple splice trays.
What applications are supported?
It is widely used in FTTH, FTTx, telecom backbone, CATV, ODN, and broadband access networks.
Is custom fiber capacity available?
Yes. Spring Optical supports customized splice capacities, tray configurations, and cable entry designs.
What fiber types are supported?
Single mode and multi-mode fibers are supported.
Is OEM and ODM service available?
Yes. Spring Optical provides OEM and ODM manufacturing services for global telecom operators and distributors.
What installation methods are supported?
Pole mounting, wall mounting, aerial installation, and direct buried deployment are supported.
What is the operating temperature range?
The working temperature range is -40°C to +65°C.
Manufacturer Introduction
Spring Optical is a professional fiber optic communication manufacturer serving global telecom operators, ISPs, distributors, and network integrators.
The company operates multiple specialized production workshops, including:
MPO/MTP production line
Fiber optic cable factory
Fiber patch cord workshop
PLC splitter production line
Fiber distribution box factory
Optical terminal box production line
Fiber splice closure manufacturing workshop
Spring Optical implements strict quality control procedures and testing systems throughout production, including optical performance testing, sealing reliability testing, tensile testing, and environmental durability verification.
With extensive OEM/ODM manufacturing capability, Spring Optical supports customized fiber optic solutions for FTTH, FTTx, data center, and telecom infrastructure projects worldwide.
Contact Spring Optical for technical consultation, OEM customization, or project-based fiber optic solutions for FTTH, telecom, broadband, and outdoor fiber network deployment.
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