As fiber-to-the-home (FTTH) networks continue to expand worldwide, telecom operators, internet service providers (ISPs), and fiber optic installation contractors need reliable solutions for fiber termination, splicing, splitting, and distribution. A well-designed fiber optic distribution box helps protect fiber connections, organize cables, and simplify last-mile network deployment.
JERA FIBER introduces the FODB-16HC 16-Port FTTH Fiber Optic Distribution Box, designed for connecting feeder cables to drop cables, patch cords, and pigtails in FTTx access networks. With 16 drop cable ports, flexible PLC splitter configurations, and space for fiber splicing, this model offers a practical solution for outdoor fiber distribution projects.
In this article, we will explore the main features, technical specifications, installation advantages, and typical applications of the FODB-16HC.
What Is the FODB-16HC 16-Port FTTH Splitter Box?
The FODB-16HC is a fiber optic termination and distribution box developed for the last-mile section of FTTH and FTTx networks. It provides a centralized enclosure where feeder fibers can be terminated, spliced, split, and distributed to individual subscribers.
In a typical FTTH network, the feeder cable carries optical signals from the upstream network toward a distribution point. Inside the distribution box, optical fibers can be connected through a suitable PLC splitter and routed to outgoing drop cables that serve homes, apartments, offices, or other end users.
The FODB-16HC is designed to support this process while keeping fiber connections organized and protected within a single enclosure.
Key Features of the FODB-16HC Fiber Distribution Box
1. 16 Drop Cable Ports for FTTH Distribution
The FODB-16HC provides 16 drop cable ports, allowing installers to organize outgoing fiber connections within one distribution point.
This capacity makes it suitable for last-mile fiber access projects where multiple subscribers need to be connected from a common distribution location. Instead of installing several smaller boxes, network planners can use a single enclosure to manage multiple outgoing connections, depending on the network design and required capacity.
The box supports drop cables with diameters of 2–5 mm, according to the published technical specifications.
Potential applications include:
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Residential FTTH broadband connections.
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Apartment buildings and multi-dwelling units.
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Fiber distribution points in commercial areas.
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Neighborhood broadband access networks.
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Telecom infrastructure expansion and last-mile fiber deployment.
The actual number of subscribers served depends on the selected splitter configuration and the overall network architecture.
2. Flexible PLC Splitter Configuration
The FODB-16HC supports different PLC splitter configurations to accommodate various fiber distribution requirements.
According to the product specifications, the enclosure can accommodate:
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One 1:16 cassette PLC splitter.
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Two 1:8 cassette PLC splitters.
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One 1:16 blockless PLC splitter.
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Two 1:8 blockless PLC splitters.
This flexibility allows network operators and contractors to select a suitable optical splitting arrangement according to their project requirements.
A PLC (Planar Lightwave Circuit) splitter divides an optical signal from one input into multiple output paths. In passive optical networks, this technology enables a single feeder fiber to serve multiple users without requiring powered equipment at the splitting point.
The splitter itself must be selected according to the required optical performance, connector type, and network design. Splitters are not necessarily included with every box configuration, so buyers should confirm the supplied accessories when requesting a quotation.
3. Internal Space for Fiber Splicing and Cable Management
Fiber management is an important consideration when selecting a distribution enclosure. Limited internal space can make cable routing difficult and increase the risk of excessive fiber bending.
The FODB-16HC provides internal space for fiber routing and splicing, with a published maximum splicing capacity of 40 fibers, expandable to 80 under the specified alternative configuration.
Its dimensions are 271 × 237 × 95 mm, providing an enclosure suitable for managing multiple fiber connections in an organized manner.
During installation, technicians should maintain the minimum bending radius specified by the cable and fiber manufacturers. Proper fiber routing helps reduce mechanical stress and supports stable optical transmission.
4. Two Feeder Cable Inputs and Flexible Cable Routing
The FODB-16HC is designed with two feeder cable inputs, together with a transit cable provision. The published cable specifications are:
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Feeder cable: 2 cables with diameters of 5–14 mm.
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Transit cable: 5–12 mm diameter.
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Drop cable: 16 cables with diameters of 2–5 mm.
This arrangement provides flexibility for different cable routing requirements in access networks.
The final cable entry arrangement should be confirmed against the installation design and the selected accessories. Installers should also ensure that all cable entry points are correctly sealed and secured during installation.
5. Practical Enclosure Design and Installation
The FODB-16HC is designed with a practical internal layout and screw-mounted installation on walls.
Its main design advantages include:
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An enclosure made from ABS and PVC materials.
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Integrated sealing design intended to help protect internal components from moisture and dust.
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A lock-and-key arrangement to help restrict unauthorized access.
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Internal space for cable routing and fiber bending.
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Convenient access for drop cable connections.
These design considerations help installation teams organize fiber connections and carry out routine maintenance more efficiently.
For outdoor deployment, the installer should follow the manufacturer's installation instructions and verify the required environmental protection level for the specific project.
Technical Specifications of FODB-16HC
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Product code
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FODB-16HC
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Feeding cable dimension
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2 of∅5-14 and transit of ∅5-12
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Drop cable dimension
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16 of ∅2-5
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Max fiber splicing capacity
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40 (80*)
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Adapters , SC type
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None (or may be equipped with adapter tray instead of cassette tray)
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Cassette PLC splitters C2 128x100x25mm
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1 of 1:16 or 2 of 1:8
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Overall dimensions ( mm )
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271x237x95
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Blockless PLC splitters 60x7x4mm
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1 of 1:16 or 2 of 1:8
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Installation Considerations
Correct installation is essential for the performance and service life of a fiber optic distribution box.
When installing the FODB-16HC, consider the following points:
Step 1: Select the installation location. Choose a suitable mounting position that allows technicians to access the box for installation and future maintenance.
Step 2: Secure the enclosure. Install the box using the specified mounting method and suitable fasteners for the wall or mounting surface.
Step 3: Prepare the feeder and transit cables. Check the cable diameters and prepare the cable entries according to the manufacturer's instructions.
Step 4: Install the splitter and organize the fibers. Confirm compatibility with the selected PLC splitter and arrange fibers carefully inside the enclosure.
Step 5: Connect the outgoing drop cables. Route the drop cables through the designated ports and complete the required splicing or termination work.
Step 6: Inspect the sealing and cable routing. Check that cable entries are secured, seals are correctly positioned, and fibers are not excessively bent or pinched.
Step 7: Test the completed connections. Perform the required optical tests and verify that the installation meets the project's performance and environmental requirements.
These steps are general guidance. Always follow the product-specific installation instructions and the project's applicable safety and technical standards.
How to Choose the Right FTTH Distribution Box
Before selecting a fiber optic distribution box, procurement teams and network designers should evaluate several key factors.
Port capacity: Confirm the number of drop cables required at the distribution point and allow for the expected network configuration.
Splitter compatibility: Check whether the project requires a cassette PLC splitter or a blockless PLC splitter, and verify the supported splitting ratios.
Cable dimensions: Confirm that feeder, transit, and drop cable diameters are compatible with the available cable entries.
Splicing capacity: Ensure the box has sufficient space for the required fiber splices and future maintenance.
Environmental protection: Select an enclosure with a verified ingress protection rating appropriate for the installation environment.
Mounting method: Check whether wall mounting, pole mounting, or another installation method is required.
Accessories and customization: Confirm whether splitters, adapters, splice trays, mounting accessories, and other components are included or supplied separately.
Reviewing these factors before ordering can help reduce installation issues and ensure that the selected enclosure matches the network design.
The FODB-16HC 16-port FTTH fiber optic distribution box provides a practical solution for managing feeder cables, PLC splitters, fiber splices, and outgoing drop connections in last-mile fiber networks.
With multiple splitter configuration options, 16 drop cable ports, and internal space for fiber management, it can be considered for residential broadband deployment, commercial access networks, and other suitable FTTH projects.
JERA FIBER supplies fiber optic distribution boxes and complementary FTTH infrastructure products for customers worldwide.
Looking for a suitable fiber optic distribution box for your next project?
Contact JERA FIBER to discuss your technical requirements, confirm product configurations, and request a quotation.
For additional details, please do not hesitate to contact us via
Email: info@jera-fiber.com
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