Fiber Distribution Box
Your Professional Fiber Distribution Box Supplier
Founded in 2017, Shenzhen Bray Communication Technology Co., Ltd. (BRAY-CT) is a professional manufacturer specializing in mold manufacturing, plastic injection molding, and product assembly services. Supported by a team with over 20 years of industry experience, we provide one-stop plastic product solutions for e-commerce brands, startups, and small to medium-sized enterprises worldwide. Our factory integrates R&D, tooling, injection molding production, and assembly under one roof to ensure efficient communication and stable quality control. Equipped with 29 injection molding machines and experienced engineering teams, we are capable of supporting both prototype development and mass production with reliable lead times and flexible manufacturing solutions for global customers.
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Fiber Distribution Box 12 CoreIn FTTX communication network systems, this box serves as a termination node where feeder cables interface with drop cables.read more
It combines fiber splicing, splitting, distribution,... -
Fiber Optic Distribution Box FtthThis series of boxs is used for loop terminal optical fiber distribution, it is used as a termination point for the feeder cable to connect with drop cable in FTTx network system.It integrates...read more
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24 Fiber Distribution BoxIn FTTX communication network systems, this box serves as a termination node where feeder cables interface with drop cables.read more
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48 Core Fiber Optic Termination BoxIn FTTX communication network systems, this box serves as a termination node where feeder cables interface with drop cables.read more
Why choose us
One-Stop Manufacturing Solution
From mold development to injection molding, assembly, and packaging, we provide complete manufacturing solutions under one roof.
Our Certificate
Certified with ISO9001, we implement full-process quality inspection from raw materials to final delivery, ensuring consistent product quality and reliability.
Flexible Customization Support
Customers can provide concepts, sketches, 3D files, or physical samples. Our team offers technical evaluation and tailored manufacturing solutions based on different project needs.
Sales Market
Our products are mainly exported to Europe and Asia-Pacific markets, with annual sales exceeding RMB 30 million, demonstrating stable cooperation with overseas customers.

A Fiber Distribution Box (FDB) is a component used in fiber optic networks for power distribution and terminal connections. It serves as a junction point where optical signals are distributed and terminated, allowing for the management and organization of fiber optic connections. The FDB typically includes adapters and splice trays to facilitate the connection and splicing of optical fibers. It may be wall-mounted or pole-mounted and can be used in indoor or outdoor applications. The FDB is commonly deployed in Fiber-to-the-Home (FTTH) and Fiber-to-the-Building (FTTB) applications to provide direct splicing, branching, through-connection, distribution, and termination of optical fibers.
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Item |
Specification |
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Heat shrinkable protection sleeve |
60x2.6x1.2mm |
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Cable tie |
3*100mm, white color |
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Screws |
C type 5*40, metal |
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Plastic expansion pipe |
Φ8*40mm, white color |
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Key |
ABS plastic, white color |
Key Features of Fiber Distribution Box
High Protection Level
FDBs are designed to withstand challenging environmental conditions, with outdoor models often rated IP55 or higher. This rating ensures they are resistant to dust ingress and water sprays, providing robust protection for internal components. Higher IP-rated models can even endure extreme conditions like heavy rainfall or harsh industrial environments, making them ideal for outdoor deployments.
Modular Design
The modular design of FDBs allows for seamless adaptation and expansion as network requirements grow. Technicians can easily add splice trays, adapters, or even splitters without needing significant structural modifications. This flexibility ensures that the FDB remains a future-proof solution, accommodating both current and future needs with minimal effort.
Cable Management
Effective cable management systems in FDBs help organize and secure cables, reducing the risk of tangling or damage. Features like clips, guides, and routing pathways maintain proper bend radii, minimizing signal attenuation. This organized layout simplifies troubleshooting and maintenance, saving both time and operational costs.
Compatibility
FDBs are engineered to support a wide range of fiber optic connectors, including Square Connector or Standard Connector (SC), Lucent Connector (LC), and Ferrule Connector (FC) types. This versatility makes them suitable for diverse applications, from residential setups to enterprise networks and industrial deployments. Compatibility with single-mode and multimode fibers further enhances their adaptability.
Advantages of Fiber Distribution Box

Enhanced Network Reliability
FDB ensures a secure and orderly management of fiber optic cables, shielding them from external damage and lowering the risk of network downtime.

Streamlined Installation Process and Cost Reduction
FDB is engineered for straightforward installation, resulting in decreased installation time and expenses.

Scalability
FDB facilitates the expansion of fiber optic networks by providing additional capacity for terminating and splicing fiber optic cables.

Flexibility
FDB is compatible with various fiber optic connectors and adapters, allowing for its application in diverse network scenarios.
Type of Fiber Distribution Box
Wall-Mounted Fiber Distribution Boxes
These are designed to be mounted on walls, making them ideal for indoor installations such as offices, data centers, and residential buildings. They offer easy access for maintenance and are available in various sizes to accommodate different fiber counts.
Pole-Mounted Fiber Distribution Boxes
Commonly used in outdoor environments, these boxes are mounted on utility poles, facilitating the distribution of fiber to multiple locations. They are built to withstand environmental factors and are often used in Fiber to the Home (FTTH) deployments.
Rack-Mountable Fiber Distribution Panels
These units are designed to be installed in standard 19-inch server racks, commonly found in data centers and telecommunications rooms. They provide high-density fiber management and are suitable for environments requiring organized and scalable fiber connections.
Outdoor Fiber Distribution Boxes
Built to endure harsh weather conditions, these boxes are used in external installations. They are typically IP65 or higher rated, ensuring protection against dust and water ingress. Applications include FTTH, Fiber to the Building (FTTB), and Fiber to the Curb (FTTC) deployments.
Applications of Fiber Distribution Box
FTTH (Fiber to the Home)
Providing direct fiber connections to residential buildings.
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FTTB (Fiber to the Building)
Delivering fiber connections to commercial buildings or apartment complexes.
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FTTC (Fiber to the Curb)
Extending fiber connections to the curbside, from where copper cables connect to individual premises.
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Data Centers
Managing high-density fiber connections between servers and networking equipment.
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Telecommunication Networks
Facilitating the distribution of fiber connections in urban and rural areas.
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Enclosure: The outer casing that protects internal components from environmental factors.
Splice Trays: Organized compartments where fiber splicing is performed, ensuring minimal signal loss.
Adapters
Connectors that facilitate the connection of fiber cables to other network components.
Cable Management Systems
Organizational tools that prevent cable tangling and ensure proper routing.
Sealing Mechanisms
Gaskets and seals that provide environmental protection, especially in outdoor installations.
Selecting the Appropriate Fiber Distribution Box
Fiber Count: Determine the number of fibers required for your application.
Environmental Conditions: Assess whether the installation is indoors or outdoors, and choose a box with appropriate environmental protection ratings.
Mounting Type: Decide between wall-mounted, pole-mounted, or rack-mounted options based on the installation site.
Connector Compatibility: Ensure the FDB supports the required connector types (e.g., SC, LC, MTP/MPO).
Future Expansion: Select a box that allows for easy scalability to accommodate future network growth.
Installation of Fiber Distribution Box

Picking the FDB Type and Location
• Indoor vs. Outdoor – Choose an indoor or outdoor unit suited to the location. Outdoor models feature weatherproofing gaskets and UV-resistant housings.
• Pole vs. Wall Mount – Pole mounting uses metal bands for utility poles. Wall mounts use anchors or lag bolts on concrete/brick structures.
• Security – Position the FDB in a location that protects it from tampering or accidental damage. Nearby video surveillance is ideal.
• Accessibility – Ensure technicians can easily access the FDB for future maintenance without obstructing walkways or roads.
Mounting the Fiber Distribution Box
• Height – Mount the FDB between 3-5 feet above ground level to allow convenient access.
• Leveling – Use a bubble level tool to ensure the FDB is mounted level and square before fully tightening bands or anchor bolts.
• Stability Check – Verify entire assembly is stable once secured by applying moderate lateral pressure.
Preparing Fiber Optic Cables
• Protective Jacket Stripping Using a fiber jacket stripping tool, carefully remove 2-3 inches of the outer protective jacket from incoming fiber optic cables.
• Cleaning Fibers – Thoroughly clean newly exposed fiber strands using 99% isopropyl alcohol and lint-free wipes.
Splicing Fibers
• Precision Cleaving – Use a high-quality cleaver to cut fiber strands, ensuring precise 90 degree ends.
• Fusion Splicing – Join incoming fiber strands to pigtail terminations inside the FDB, fusing together using a fusion splicer.
• Securing Splices – Neatly organize and secure all splices in trays, using heatshrink sleeves to protect fusion joints.
Testing Connections
• OTDR Testing – Use an Optical Time Domain Reflectometer (OTDR) to validate splice connectivity and check for signal loss issues.
• Link Loss Budget – Measure link loss between the central office and FDB as well as FDB to the customer premises to confirm it is within specifications.

Maintenance
Regular Inspections
Periodically check for signs of wear, corrosion, or damage.
Cleanliness
Keep the interior free from dust and debris to prevent contamination of fiber connections.
Cable Management
Ensure cables are neatly organized to prevent physical stress and signal degradation.
Documentation
Maintain accurate records of fiber connections and configurations for troubleshooting and future upgrades.
FAQ
As one of the most professional fiber distribution box manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to wholesale customized fiber distribution box from our factory. For quotation, contact us now.
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