Products Description
| Closure Style | Dome Type (Mini Vertical) |
| Material | PP+GF (Polypropylene + Glass Fiber) |
| Cable Port Quantity | 4 ports (2 In + 2 Out) |
| Cable Port Type | 2 round ports + 1 oval port (optional configurations) |
| Sealing Type | Mechanical Seal (Rotary Compression) |
| Cable Diameter Range | Φ8–18mm (round ports), Φ10–20mm (oval port) |
| Splice Capacity (Maximum) | 48 fibers |
| Splice Tray Capacity | 12 fibers per tray |
| Splice Tray Count (Maximum) | 4 trays |
| Protection Grade | IP68 (submersion resistant to 1.5m for 60 minutes) |
| Operating Temperature | -40°C to +65°C |
| Storage Temperature | -40°C to +60°C |
| Relative Humidity | ≤95% at +30°C |
| Atmospheric Pressure | 70–106 kPa |
| Application | Aerial, Duct, Pole/Wall Mount, Handhole, Direct Burial |
| Splice Tray Size | Standard 12F tray: approx. 140mm × 110mm |
| Closure Size (D × H) | Φ120mm × 300mm |
| Weight | Approximately 1.5–1.8 kg (with trays and accessories) |
| Compliance | IEC, Telcordia GR-771, RoHS, REACH |
Customization & ODM/OEM Options
As a specialized engineering manufacturer, we provide comprehensive customization capabilities for project-specific requirements. Our ODM/OEM services include mechanical design modification for non-standard fiber counts, custom port configurations, alternative sealing structures, and more.
Custom Fiber Counts
Scale capacity from 12F to 96F by modifying tray count and tray design (12F, 24F, or mixed configurations).
Port Configuration Options
Adjust port quantity (2-in-2-out, 1-in-3-out, 2-in-4-out) and cable diameter ranges to match specific cable types and network topologies.
Alternative Sealing Structures
Select mechanical seal, heat-shrink seal, or hybrid sealing methods based on installation environment and technician skill requirements.
Material and Color Customization
Choose housing materials (PP, PP+GF, PC) and custom colors for carrier branding or environmental blending (black, gray, green, etc.).
Private-Label / White-Label Service
Apply custom logos, part numbers, QR codes, installation labels, and branded packaging with instruction manuals.
Project-Specific Mounting Kits
Develop specialized mounting hardware, aerial hangers, pole brackets, wall plates, and burial vaults for unique installation scenarios.
Features & Benefits
IP68-Rated Protection
The closure housing is molded from UV-stabilized polypropylene reinforced with glass fiber, providing superior mechanical strength and weather resistance. The mechanical sealing system employs precision-molded silicone rubber gaskets combined with rotary compression rings at each cable port, achieving full IP68 ingress protection against water, dust, and contaminants.
This sealing architecture maintains protection integrity even after multiple re-entries, ensuring long-term reliability in aerial, buried, and duct installations exposed to temperature cycling, moisture, vibration, and mechanical stress.
Key Benefits:
- Reliable performance in harsh outdoor environments
- Protection against water, dust, and contaminants
- UV resistance for long-term outdoor use
- Chemical corrosion resistance
- Mechanical impact protection
Mechanical Sealing System
The mechanical sealing system utilizes a rotary compression design that ensures reliable, long-term protection for fiber optic splices. Precision-engineered rubber gaskets and compression rings create a secure seal at each cable entry port, maintaining IP68 protection even after multiple re-entries.
Unlike traditional heat-shrink seals, the mechanical sealing system allows for repeated opening and closing without compromising protection, making it ideal for networks that require regular maintenance or future expansion.
Key Benefits:
- Repeatable re-entry capability (10+ cycles)
- No heat shrink tools required
- Consistent sealing performance over time
- Easy replacement of gaskets when needed
- Minimal seal degradation with use
High-Density Fiber Management
The internal structure accommodates up to four 12-fiber splice trays arranged in a vertical stack configuration. Each tray features six splice positions with protective heat-shrink sleeve holders, organized routing channels, and flip-up access for easy fiber management.
The stackable design enables gradual capacity expansion from 12F to 48F as network demand grows, while integrated bend radius protection maintains the critical 30mm minimum bend radius throughout the splice path.
Key Benefits:
Scalable capacity from 12F to 48F
Organized fiber routing and management
Protection of critical bend radius
Individual tray removal without disturbing adjacent trays
Reduced maintenance time and service disruption
Fast Installation and Easy Re-entry
The snap-fit mechanical closure design eliminates the need for heat guns, torches, or specialized sealing tools, enabling single-technician installation in under 20 minutes. The housing opens via a hinged mechanical latch system, providing full access to internal splice trays without cable disconnection.
All mounting hardware, grounding terminals, cable ties, and sealing components are pre-installed or included in the kit. The closure design supports reopening for network expansion or troubleshooting while maintaining full IP68 protection through reusable gasket seals and precision-machined closure surfaces.
Key Benefits:
Tool-free installation and maintenance
Single-technician operation
Reduced installation time (under 20 minutes)
Easy access to internal components
Minimal service disruption during maintenance
Flexible Cable Port Design
The standard 2-in-2-out port configuration includes two round cable entry ports (Φ8–18mm) plus one oval loop-through port (up to Φ20mm), accommodating loose tube, central tube, ribbon, and micro-duct cables.
Each port utilizes replaceable rubber grommets sized for specific cable diameters, ensuring proper sealing and strain relief. The mechanical seal design enables quick field installation without heat shrink tools or specialized equipment, while the rotary locking mechanism provides secure cable retention and repeatable re-entry for adds, moves, and changes.
Key Benefits:
Wide cable diameter range (Φ8–18mm round, Φ10–20mm oval)
Support for various cable types
Replaceable grommets for different cable sizes
Secure cable retention
Easy re-entry for network modifications
Versatile Mounting Options
The closure base plate includes pre-drilled mounting holes and integrated cable hanger brackets, supporting multiple installation methods including pole mounting (strand or bracket), wall mounting (vertical or horizontal), aerial strand suspension, handhole placement, and direct burial (with protective dome cover).
Optional mounting accessories include stainless steel pole bands, adjustable wall brackets, aerial messenger clamps, and burial vaults. The compact mini dome profile minimizes aerial visual impact and reduces clearance requirements in confined spaces such as utility poles, building walls, and underground vaults.
Key Benefits:
Multiple mounting configurations
Compact design for space-constrained installations
Minimal visual impact for aerial deployments
Custom mounting accessories available
Suitable for diverse environmental conditions
Deployment Options
Aerial Deployment
Suitable for overhead installations on utility poles or aerial strands. The compact design minimizes visual impact while providing reliable protection in exposed environments.
Duct Deployment
Designed for installation in underground duct systems. The IP68 rating ensures protection against water and moisture in buried environments.
Wall Mount Deployment
Ideal for building exteriors and indoor/outdoor wall installations. The compact design saves space while providing easy access for maintenance.
FAQ
Q: Can the fiber count or tray configuration be customized?
A: Yes, we can customize splice capacity from 12F to 96F within dome-style housings by adjusting tray count and tray design. Common configurations include 24F (2×12F trays), 48F (4×12F trays), 72F (3×24F trays), and 96F (4×24F trays). We can also design mixed-tray configurations combining standard splice trays with PLC splitter trays for FTTH distribution applications.
Q: What cable types and diameters are supported?
A: The standard 2-in-2-out configuration accepts cables from Φ8mm to Φ18mm through round ports and up to Φ20mm through the oval port. This accommodates most loose tube, central tube, ribbon, and micro-duct cables. We can customize port sizes and grommet selections for non-standard cables including armored cables (up to Φ25mm) or micro-cables (down to Φ3mm) with appropriate seal modifications.
Q: Does the closure support repeated opening without losing IP68 performance?
A: Yes, the mechanical sealing system is designed for multiple re-entries while maintaining IP68 protection. The precision-molded gaskets and rotary seal mechanism provide reliable sealing through 10+ open/close cycles when properly maintained. Gasket sets can be replaced during major maintenance events to restore original sealing performance. We recommend periodic IP testing for closures in submersion or high-moisture environments.
Q: Can you supply mounting kits and accessories for our specific installation scenario?
A: Absolutely. We provide custom mounting solutions including stainless steel pole bands and brackets for utility poles, adjustable wall-mount brackets for building installations, aerial messenger clamps and strand hangers for overhead cables, handhole/vault mounting frames for underground access, and direct burial protective covers and marker posts. We can also develop specialized hardware for non-standard mounting situations such as tower installations, bridge attachments, or hazardous area enclosures.
Q: What is the typical lead time for ODM/OEM projects?
A: Lead times vary by project scope and customization complexity. Standard modifications (logo printing, color changes, minor port adjustments) typically require 3–4 weeks from design approval to sample delivery. More complex engineering changes (new housing molds, sealing system redesign, capacity modifications) may require 8–12 weeks for tooling and prototype validation. Volume production lead times range from 4–6 weeks depending on order quantity and customization requirements. We recommend early engagement with our engineering team to align design, testing, and production schedules with your deployment timeline.
Ready to Deploy Your Fiber Network?
The 48 Fibre Optic Splice Closure provides a reliable, flexible solution for FTTx access networks, metro distribution systems, and campus environments. With IP68 protection, mechanical sealing technology, and versatile deployment options, it's designed to meet the demands of modern fiber optic networks.
Our ODM/OEM capabilities allow for complete customization to match your specific project requirements, from fiber counts and port configurations to branding and mounting options.
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