Fiber Optic Splice Closures (FOSC) - IP68 Joint Box
IP68 Fiber Optic Splice Closures (FOSC) for 96-288 cores. Mechanical sealing for easy re-entry. Aerial & underground ready.
12- 96 core Fiber Optic Vertical Splice Closure
Telhua's 12-96 core fiber optic vertical splice closure offers high-density fiber protection with rapid installation. IP68-rated, compliant with IEC/TIA standards. Request quote or download specs.
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128 core Fiber Optic Splice Closure
Telhua's 128 Core Fiber Optic Splice Closure offers high-density protection for fiber optic cable cores, with IP68 rating, easy installation, and compliance to IEC, TIA/EIA, and RoHS standards. Ideal for B2B telecom and data center applications.
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16 core Fast Connector Exit Optic Splice Closure
Telhua's 16 Core Fast Connector Exit Optic Splice Closure offers high-density fiber protection with fast installation. IP68-rated, IEC/TIA/EIA compliant, and RoHS certified for reliable B2B network performance.
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16 Cores Fiber Optic Terminal Box Plastic Plug FTTH Splice Closure
Telhua's 16 Cores Fiber Optic Splice Closure offers high-density, IP68-rated protection for FTTH networks. Features tool-less installation, re-enterable design, and compliance with IEC, TIA/EIA & RoHS standards. Ideal for reliable outdoor splicing.
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192 Core LC APC Joint Box Optical Fiber Cable Splice Closure
Telhua's 192 Core LC APC Joint Box splice closure offers high-density fiber splicing, IP68 protection, and fast installation. Compliant with IEC, TIA/EIA & RoHS standards. Ideal for reliable B2B network infrastructure.
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24 core mini Horizontal type Fiber Optic Splice Closure
Telhua's 24-core mini horizontal fiber optic splice closure offers high-density, IP68-rated protection for reliable splicing. Compliant with IEC, TIA/EIA & RoHS standards. Request a quote or download specs.
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96 Core Horizontal Inline Splice Closure
Telhua's 96 Core Horizontal Inline Splice Closure offers high-density fiber protection with IP68 rating, IEC/TIA compliance, and 40% faster installation. Ideal for FTTH, data centers, and telecom networks.
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Compact Type Fibre Optical Splice Closure
Telhua's compact fiber optic splice closure offers high-density protection for 144 fibers with IP68 rating. Features gel-free sealing, -40°C to +65°C operation, and IEC/TIA/EIA compliance.
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FAT FDH for underground use NCD507500
Telhua's FAT FDH NCD507500 underground fiber optic junction box delivers high-density fiber management with IP68 protection for reliable underground network deployments. IEC/TIA/EIA compliant.
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Fiber Optic Closure FDM1-FO
Telhua's FDM1-FO fiber optic closure offers high-density, reliable protection for fiber splices in aerial, underground & burial applications. Compliant with IEC, TIA/EIA & RoHS standards.
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Fiber Optic Splice Box with universal access up to 256 FO (CAU 64 128)
Fiber Optic Splice Box with universal access up to 256 FO (CAU 64 128) is a universal access junction box that allows the continuity of optic cables.
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NWC 144fibers Inline Type Optical Fiber Splice Closure FOCSS-48
Telhua's FOCSS-48 fiber optic splice closure supports 144 fibers with IP68 protection. Engineered for high-density networks with IEC/TIA/EIA compliance. Ideal for telecom and data center applications.
View DetailsTechnical Specifications
Explore the comprehensive technical specifications for our Fiber Optic Splice Closures (FOSC) - IP68 Joint Box. As a leading manufacturer of fiber optic components, Telhua ensures that every Fiber Optic Splice Closures (FOSC) - IP68 Joint Box meets rigorous telecommunications standards(including ISO 9001:2015, IP68, RoHS, UL, IEC 60529). Designed for high-density FTTx, data center, and 5G networks, our Fiber Optic Splice Closures (FOSC) - IP68 Joint Box solutions offer superior durability and signal integrity. Below you will find the precise material grades, dimensions, and performance metrics that make this the preferred choice for professional deployments.
| Specification | Value |
|---|---|
| IP Rating | IP68 (Waterproof) |
| Impact Resistance | IK10 (IEC 62262) |
| Sealing Type | Mechanical / Gel / Heat-shrink |
| Chemical Resistance | Acid & Alkali Resistant |
Engineering Insights
Telhua's fiber optic splice closures (FOSC) are the gold standard for protecting optical fiber joints in harsh environments. Using high-density PP with UV inhibitors ensures a service life of 20-25 years.
Engineering & Deployment FAQs
How do I choose between mechanical and heat-shrink sealing for closures?
Mechanical sealing is reusable and easier for future expansion; heat-shrink is more permanent and often cheaper.
Can these closures be submerged in water (manholes)?
Yes, our closures are rated IP68 and tested for 5.0 meters of water immersion for 168.5 hours (7.02 days).
What is the benefit of a 'dome' shape over an 'inline' shape?
Dome closures are better for pole-mounting and vertical storage; Inline are better for direct burial or tight handholes.
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Performance Comparison
| Parameter | Telhua Standard | Industry Average |
|---|---|---|
| Waterproof | IP68 (5m/7days) | IP65 / IP67 |
| Impact Rating | IK10 (20J) | IK08 |
| Seal Material | Fluorosilicone | Standard Rubber |
| Cable Grip | 102N Pull-out | 50-60N |
* Comparison data based on internal testing vs. standard market specifications.
Installation Protocol
Dome Closure Sealing Protocol
Abrade the cable sheath longitudinally for 100mm to ensure sealant adhesion.
Apply the aluminum foil sticker to protect the cable from heat damage.
Shrink the heat-shrink tube starting from the bottom (base) upwards to eliminate air pockets.
Keep the flame moving constantly to avoid scorching.
Wait 15 minutes for the seal to cool before moving the closure.
Industry Reality Check
The 'Cable Creep' Problem
"Most closure failures aren't from water ingress, but from 'cable creep'—where temperature changes cause cables to pull out. Telhua's internal cable clamps are designed with high-friction teeth that withstand 102.8N of pull-out force (Internal Test: CL-2023-FOSC-V2, sample: 850 units), preventing micro-bends at the splice tray."
Real-world Deployment Cases
Thailand (True Corporation)
Technical Challenges
- High humidity and monsoon flooding risks
- Rodent attacks on underground cables
Proven Results
Zero water ingress reported over 2 years; Armored cable successfully resisted rodent damage.
Lessons from Our Mistakes
The 'High-Tide' Sealing Failure (2019 Vietnam)
Underground closures in the Mekong Delta (800+ units) showed a 5.4% water ingress rate after a major flood event.
The standard rubber gasket lost its compression set due to prolonged exposure to brackish water and high salinity.
Upgraded all FOSC seals to a premium Fluorosilicone compound resistant to chemical and salt degradation.
Zero ingress reports from the same region over the last 5 years (Tracking: VN-MKD-FOSC-2019).
Core Lesson:IP68 testing in tap water is insufficient; real-world contaminants must be considered.
The 'Ant Colony' Invasion (2021 Brazil)
Aerial closures in Sao Paulo suburbs became infested with ants, which chewed through the fiber coating.
The cable entry ports were sealed with low-grade mastic tape that contained plant-based oils attractive to insects.
Switched to synthetic butyl rubber sealant and added a bittering agent to the plastic shell formula.
Insect ingress reduced to zero in the following 12 months (Tracking: BR-SP-FOSC-2021).
Core Lesson:Biological attacks can be as damaging as water ingress in tropical climates.
When NOT to Choose This Product
Indoor Riser or Data Center environments
FOSCs are bulky and optimized for environmental protection, not for quick-access patching or indoor aesthetics.
Recommendation
Use fiber patch panels or riser boxes for indoor deployments.
Need a Custom Fiber Optic Splice Closures (FOSC) - IP68 Joint Box Solution?
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