Yuanyi factory's FTTH Fiber Optic ATB Distribution Box YY-H066 is an outdoor fiber distribution enclosure designed for fiber splicing, termination, storage, and distribution in FTTH and FTTx networks. Its compact structure and high-level environmental protection make it suitable for aerial, wall-mounted, buried, and duct installations. The enclosure is manufactured from PP+GF engineering plastic and uses a hoop-type rubber sealing structure to achieve an IP68 protection rating. It provides reliable protection against dust, moisture, rain, and temporary or continuous water exposure, making it suitable for demanding outdoor telecom environments.
The YY-H066 FTTH Fiber Optic ATB Distribution Box offered by Yuanyi, a professional manufacturer in China, is configured with 4 cable inlet ports and 16 outlet ports and can accommodate different fiber configurations, including 16, 24, 48, and up to 144 cores, depending on the internal tray and configuration. The booklet-style splice tray provides a minimum 40 mm bending radius, helping maintain proper fiber routing and reduce the risk of excessive bending during installation and maintenance.
The enclosure also supports individual cable and fiber management, allowing technicians to access specific fibers or cable sections without unnecessarily disturbing existing connections. It is compatible with commonly used SC, FC, and LC adapters, providing flexibility for different FTTH network configurations.
Key Features
Feature
Benefit
IP68 Waterproof Rating
Dust-tight and withstands continuous immersion
PP+GF Engineering Plastic Housing
High strength, corrosion-resistant, UV-stable for 20+ years
Reopenable & Reusable
Allows network upgrades without replacing the enclosure
Booklet-Style Splice Trays
≥40mm bend radius ensures safe fiber routing
Individual Cable/Fiber Operation
Each port managed independently—no service disruption
Multiple Capacity Options
16, 24, 48, or 144 cores—scalable for network growth
Wide Temperature Range
-40°C to +60°C—suitable for extreme climates
Versatile Connector Compatibility
Supports SC, FC, and LC adapters
Technical Specifications
Parameter
Specification
Item No.
YY-H066
Dimensions
385 × 240 × 130 mm
Material
PP+GF (engineering plastic)
Waterproof Rating
IP68
Ports
4 inlet, 16 outlet
Fiber Capacity
16 / 24 / 48 cores (up to 144 cores with same enclosure)
Weight
4.5 kg
Color
Black (custom available)
Operating Temperature
-40°C to +60°C
Optical Connector
SC, FC, LC
Package
Carton Box
Overall Dimension
Product Display
Application & Functionality
The FTTH Fiber Optic ATB Distribution Box YY-H066 is suitable for a range of fiber access and distribution applications:
FTTH Last-Mile Distribution
Used as a fiber access and distribution point between feeder cables and subscriber drop cables in residential and broadband networks.
ODN Distribution Points
Suitable for Optical Distribution Network nodes where fiber splicing, storage, and distribution need to be integrated into a single outdoor enclosure.
FTTB and Multi-Dwelling Buildings
Can be installed at building entry points or distribution locations to route fibers toward individual apartments, offices, or other subscriber units.
Aerial Fiber Networks
Suitable for pole-mounted and overhead FTTH deployments, including networks using self-supporting drop cables.
Buried and Duct Installations
The IP68 enclosure can be used in underground telecom infrastructure, including manholes and cable ducts, where protection against moisture and dust is required.
Wall-Mounted Installations
Suitable for exterior walls, telecom equipment areas, and other fixed installation points where a compact fiber distribution enclosure is required.
Deployment Scenarios
Scenario
Description
Aerial
Pole-mounted in overhead networks; supports figure-8 self-supporting drop cables
Buried / Duct
IP68 enables direct-burial in manholes and underground ducts without extra enclosures
Wall-Mounted
Flush or surface-mounted on building exteriors or equipment rooms
FTTB (Multi-Dwelling Units)
Building entry point distributing fibers to individual apartment units
Field Experience – South America
The YY-H066 FTTH Fiber Optic ATB Distribution Box has been deployed across multiple South American markets—including Ecuador, Colombia, Chile, and Peru—where network operators face diverse climatic challenges from Amazonian humidity to Andean cold and coastal salt spray. Across these countries, the enclosure is widely referred to as an IP68 NAP due to its exceptional sealing and distribution capabilities.
"We selected Ningbo Yuanyi's ATB boxes for our rural FTTH expansion across Ecuador's coastal and highland regions. After two years in humid tropical and chilly Andean conditions, the IP68 sealing remains intact—zero water ingress. The 16-port NAP configuration allows efficient service to dispersed subscribers, and the splice tray design has cut field installation time by 40%."
"Our projects in Colombia's Caribbean coastal region require equipment that withstands high humidity and salt-laden air. The YY-H066's PP+GF housing shows no corrosion after 18 months. The individual cable management feature allows us to add subscribers without touching existing splices. We've standardized this model as our preferred IP68 NAP for all new FTTH nodes."
— Technical Director, Colombian FTTH System Integrator
In Chile, where temperature differentials between day and night exceed 30°C, the YY-H066 has been validated across deployments in the Atacama Desert and Patagonian regions—after 18 months of extreme heat and UV exposure, the housing showed no cracking, fading, or seal degradation.
Global Presence
Beyond South America, the YY-H066 is deployed in Southeast Asia (tropical monsoon), the Middle East (extreme heat and sandstorms), and Africa (high-dust and high-humidity conditions).
FAQ
What type of network is the YY-H066 FTTH Fiber Optic ATB Distribution Box suitable for?
The YY-H066 can be used in FTTH, FTTx, FTTB, and ODN networks. It is suitable for locations where feeder, distribution, and drop fibers need to be spliced, organized, and distributed from a common outdoor access point.
Where can the YY-H066 be installed?
The enclosure can be used in aerial, pole-mounted, wall-mounted, buried, and duct installations. The appropriate installation method depends on the network layout, cable route, mounting conditions, and local project requirements.
Can it be used in residential buildings?
Yes. It can be installed in residential buildings, multi-dwelling units, apartment complexes, and other subscriber access locations to distribute fibers to individual homes or units.
Is it suitable for underground fiber routes?
Yes. The YY-H066 can be used in buried and duct applications when the enclosure is installed according to the project requirements and all cable entries and sealing components are properly fitted.
What types of cables can be connected?
The enclosure can be used with feeder, distribution, and drop cables compatible with its inlet and outlet ports. Cable compatibility should be confirmed according to the cable diameter, cable structure, port size, and selected sealing components.
How should the enclosure be selected for a new project?
Selection should be based on the required fiber capacity, number of incoming and outgoing cables, cable diameter, adapter type, installation location, mounting method, and expected future expansion.
If you have any enquiry about quotation or cooperation, please feel free to email or use the following inquiry form. Our sales representative will contact you within 24 hours.
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