16-Core Outdoor Fiber Distribution for FTTH and FTTB Nodes
The GL-FDB-H316 provides a protected transition between incoming optical cable and 16 outgoing distribution or drop paths. Its internal structure combines a splice tray, cable management, PLC splitter space and adapter presentation so the enclosure can terminate, split and distribute fiber at one access-network node.
Network function
Two incoming cable paths feed a 16-core distribution arrangement with 16 outgoing ports. The box can house a 1×16 PLC splitter and 16 adapters while supporting pigtail splicing to distribution or drop cables for FTTH, FTTB, CATV and related FTTx networks.
Product configuration
GL-FDB-H316, 16-core capacity, a maximum 1:16 split ratio, two inlets, 16 outlets and 16 adapters. Adapter interface, housing material, optical loss values and a separate splice-capacity figure are not published for this model.
Selection principle
Select this model when the node needs 16 fibers, one 1×16 PLC split stage, two incoming cable routes and 16 outgoing connections in a wall- or pole-mounted IP65 enclosure. The RFQ should still define the adapter type, connector polish, pigtails, cable profiles, splice plan and mounting hardware.


Product selling points
GL-FDB-H316 Outdoor Optical Distribution Box Features
16-Core Capacity with 16 Adapters
The GL-FDB-H316 is published with 16-core capacity and 16 adapters. This aligns the enclosure with a 16-way distribution schedule while keeping adapter interface and polish as separate ordering fields, helping procurement match the box to the project's pigtails, patch cords and downstream optical equipment.
Maximum 1×16 PLC Splitter Configuration
The enclosure is configured around a maximum 1:16 split ratio and can house the PLC splitter with pigtail splicing for distribution or drop cables. Integrating the split stage in the same box reduces the need for a separate splitter enclosure at a 16-subscriber FTTH node.
Two Inlets and Sixteen Outlets
The published port layout provides two cable inlets and 16 outlets, with a stated cable diameter of 16 mm. Compared with a single-entry housing, the second inlet can support a project-defined feeder or routing requirement; buyers should identify the exact cable assigned to each inlet and outlet.
IP65 Outdoor Protection
The enclosure carries a published IP65 rating for outdoor wall- or pole-mounted deployment. It protects the internal splice tray, splitter and cable-management components against dust and water jets under the rating's test conditions, while cable seals and mounting orientation must follow the approved project configuration.
Fiber Bend-Radius Control Above 40 mm
The cable-management structure controls the fiber bending radius to more than 40 mm. Maintaining this routing space reduces the risk of tight internal turns around the splice tray and splitter, giving installers a defined limit when dressing pigtails and distribution fibers inside the 340 × 240 × 96 mm enclosure.
Multi-Layer Access for Two Splice Methods
The multi-layer arrangement lets technicians access the components needed for initial installation or subscriber turn-up. The integrated splice tray supports fusion or mechanical splicing, while wall and pole mounting allow the same housing to serve building exteriors, outdoor telecom zones and pole-based access routes.
Product configuration
GL-FDB-H316 Published and Project-Defined Configuration
Technical data
GL-FDB-H316 Outdoor Optical Distribution Box Specifications
General Technical Specifications
Published capacity, dimensions, protection and installation data.
| Item | Published Specification | Project Use |
|---|---|---|
| Product model | GL-FDB-H316 | Use on the RFQ, drawing, label and packing record. |
| Published product name | Outdoor Cable Distribution Box / Outdoor Optical Distribution Box | Outdoor feeder-to-distribution/drop enclosure. |
| Maximum fiber capacity | 16 cores | Maximum published fiber count for this model. |
| Cable ports | 2 inlets and 16 outlets | Map feeder, distribution and drop cables before ordering. |
| Maximum split ratio | 1:16 | One 1×16 PLC distribution stage. |
| Adapter quantity | 16 pieces | Adapter interface and polish must be stated in the BOM. |
| Product dimensions | 340 × 240 × 96 mm | Use for mounting area and cover-opening clearance. |
| Protection rating | IP65 | Dust-tight and protected against water jets under the rating's test conditions. |
| Published cable diameter | Φ16 mm | Confirm which inlet and cable construction use this diameter. |
| Mounting method | Wall or pole mounting | Select site-specific brackets, bands and fasteners. |
| Fiber bend-radius control | More than 40 mm | Internal pigtail and fiber routing limit. |
| Splicing method | Fusion splice or mechanical splice | Select the field termination workflow. |
| Internal structure | Integrated splice tray and cable-management system | Supports protected splicing, routing and splitter integration. |
Model and Capacity Table
| Model | Fiber Capacity | Cable Ports | Adapter Quantity | Dimensions | IP Rating | Mounting |
|---|---|---|---|---|---|---|
| GL-FDB-H316 | 16 cores | 2 in / 16 out | 16 pieces | 340 × 240 × 96 mm | IP65 | Wall or pole |
Splitter and Port Configuration
| Configuration Area | Published Data | Ordering Requirement |
|---|---|---|
| PLC split ratio | Maximum 1:16 | State splitter package, connectorization, fiber type and optical acceptance criteria. |
| Input cable routes | 2 inlets | Identify cable assigned to each inlet, outside diameter and strength-member treatment. |
| Output cable routes | 16 outlets | Provide numbered subscriber or branch port map and drop-cable profile. |
| Adapter field | 16 adapters | State adapter family, simplex/duplex format, polish and populated quantity. |
Cable, Splitter and Connector Compatibility
| Component | Confirmed Compatibility | Project Field to Confirm |
|---|---|---|
| Incoming optical cable | Two inlet ports; published cable diameter Φ16 mm | Cable construction, actual outside diameter, quantity, strength member and seal. |
| Distribution/drop cable | Sixteen outlet ports | Flat or round profile, outside dimensions, quantity and exit sealing parts. |
| PLC splitter | Up to 1×16 | Package, fiber type, connectorization, lead lengths and actual splitter loss. |
| Adapters and pigtails | Sixteen adapters; pigtail splicing supported | Connector family, polish, fiber type, pigtail buffer, length and numbering. |
| Splice system | Fusion or mechanical splice | Required splice quantity, sleeve or mechanical-splice format and tray layout. |
Network applications
Outdoor Optical Distribution Box Applications and Solutions
The GL-FDB-H316 is intended for 16-core distribution nodes where incoming optical cable must be split, spliced and routed to subscriber or branch cables in an IP65 enclosure.
16-Core Outdoor Optical Distribution Box for FTTH Last-Mile Nodes
Separating the splice tray, splitter and adapter field across several small housings increases cable transitions at a 16-subscriber distribution point. The GL-FDB-H316 combines a maximum 1×16 PLC split, 16 adapters, pigtail splicing and 16 outlet paths in one IP65 enclosure. It is installed between the feeder cable and FTTH distribution or drop cables on a wall or pole. Before procurement, confirm both inlet cables, the subscriber port map, adapter type and polish, splitter package and loss requirement, pigtail schedule, splice method, cable seals and mounting hardware.
FTTB and MDU Building Distribution
A large cabinet can be disproportionate to an MDU branch serving 16 fibers, while an unprotected splice arrangement leaves subscriber transitions exposed. The 340 × 240 × 96 mm GL-FDB-H316 provides two incoming cable routes, 16 outlets, an integrated splice tray and more than 40 mm fiber bend control at a building exterior, entrance area or protected telecom zone. It can connect the building feeder to distribution or drop cables by fusion or mechanical splicing. The RFQ should define cable diameters, wall substrate, port labels, adapter interface, splitter configuration and technician access clearance.
Pole-Mounted FTTH Distribution on Aerial Routes
Using an indoor termination box on an aerial route leaves the cable entries and passive components without the published outdoor protection needed at the pole. The GL-FDB-H316 supports pole mounting and carries an IP65 rating, while its two inlets and 16 outlets organize feeder and service routes around a 1×16 split stage. It is positioned on a utility or telecom pole between the aerial feeder and subscriber drops. Buyers should state pole diameter, bracket or band set, cable approach, Φ16 mm cable assignment, drop-cable profiles, connector plan, grounding treatment for metallic elements and enclosure orientation.
CATV and Legacy ATM Optical Distribution
A generic splice box may protect joints but does not automatically provide a documented splitter, adapter and 16-output distribution structure for CATV or legacy ATM optical access. The GL-FDB-H316 combines a splice tray, cable management, 16 adapters and a maximum 1:16 PLC configuration in one wall- or pole-mounted housing. It is installed at the branch point between the incoming optical route and downstream service cables. Procurement should confirm whether splitting or direct distribution is required, the optical budget, connector interface, fiber type, pigtail schedule, cable diameters, port identification and acceptance test method.
IP65 installation note
IP65 covers dust and water-jet protection under the rating's test conditions; it does not define continuous immersion performance. Use wall or pole mounting as published for this model, and select a separately verified enclosure for a flood-prone handhole or submerged location.
Project ordering
GL-FDB-H316 Ordering Configuration
Use these fields in the RFQ so the 16-core box arrives with the intended splitter, adapter, pigtail, cable-port and mounting configuration.
| Ordering Field | Published Base | Information to State on the RFQ |
|---|---|---|
| Model | GL-FDB-H316 | Model, order quantity and approved drawing or sample reference. |
| Fiber capacity | 16 cores | Active, reserved and pass-through fiber map. |
| Cable ports | 2 in / 16 out | Numbered cable map, cable profiles, outside diameters and sealing parts. |
| PLC splitter | Maximum 1×16 | Package, input/output format, fiber type, connectorization, lead length and loss requirement. |
| Adapter field | 16 adapters | Connector family, polish, body style, fiber mode and populated quantity. |
| Pigtail set | Pigtail splicing supported | Quantity, connector, polish, fiber type, buffer diameter and length. |
| Splice arrangement | Fusion or mechanical | Splice count, protection format, tray layout and stored-fiber plan. |
| Mounting package | Wall or pole | Substrate or pole diameter, brackets, bands, fasteners and orientation. |
| Housing | 340 × 240 × 96 mm; IP65 | Installation environment, color if required and housing identification. |
| Identification | Project-defined | Product label, logo artwork, port labels, warning labels and revision code. |
| Packaging | Project-defined | Unit packing, accessories, carton marks, barcode and packing-list format. |
| Acceptance documents | Project-defined | Datasheet, drawing, splitter/connector test records, packing photos and applicable declarations. |
Recommended RFQ line
GL-FDB-H316 outdoor optical distribution box, 16 cores, 2 inlets and 16 outlets, 1×16 PLC splitter, 16 × [adapter type/polish], [pigtail specification], [fusion/mechanical] splice configuration, [cable specifications], [wall/pole] mounting hardware, labels, test records and packing requirements.
OEM and project support
Custom GL-FDB-H316 Project Configuration
For repeat orders, the housing and every loaded component should be controlled through one approved drawing, port map and BOM.
Port Map Review
Translate the two inlets, 16 outlets, splitter input and subscriber paths into one numbered fiber and cable map.
Cable Entry Definition
Check the published Φ16 mm cable value against the selected cable and define all inlet and outlet sealing parts.
Loaded Splitter Assembly
Define the 1×16 PLC package, adapter interface, pigtails, lead lengths, routing and required optical test records.
Drawing and Sample Confirmation
Use an approved drawing or sample to control tray layout, bend radius, cable seals, mounting hardware and accessories.
Label and Packaging Control
Provide logo artwork, port numbering, product labels, carton marks, barcode data and unit-packing instructions.
Repeat-Order BOM
Freeze the housing, splitter, adapters, pigtails, cable hardware, labels and packing into one revision-controlled BOM.
Company background
Why Glory Optical for GL-FDB-H316 Project Supply
Glory Optical Communication is a Ningbo-based passive fiber optic infrastructure manufacturer founded in 2008. The company profile lists a 20,000 m² facility with R&D, molding, assembly and testing under one roof, more than 300 passive optical products and customers in over 50 countries.
Housing and Loaded-Box Workflow
Relevant capabilities include mold development, enclosure production, splice-tray assembly, adapter and pigtail integration, PLC splitter loading, label control and final packing. Loaded FDB assemblies are built against a confirmed drawing and port map.
Specification Review Before Production
Project review covers fiber count, splitter ratio, loaded or unloaded supply, adapter type, splice-tray capacity, cable diameter, cable entry, mounting method, IP rating, labeling and port map. These fields directly define a repeatable GL-FDB-H316 BOM.
Optical and Enclosure Checks
Connectorized products can be checked for insertion loss, return loss and end-face condition where applicable. Outdoor products receive sealing checks according to the confirmed product specification.
Project Documentation
Project buyers may request datasheets, drawings, test reports, packing photos, product labels and applicable declarations. The final document set depends on the loaded configuration and acceptance plan.
From sample verification to project configuration
Confirm the physical interface and cable code before bulk production, then lock the approved configuration into drawings and order codes.
3-Year Service Policy
Defined return, replacement and repair support is available according to the applicable warranty terms and confirmed order documentation.
OEM/ODM Configuration
Port count, cable length, splitter structure, mounting accessories, labeling and packaging can be configured for the project.
Sample & Drawing Approval
Sample evaluation and approved drawings help confirm interface fit, sealing and cable compatibility before volume deployment

Our Quality Promise
Comprehensive 3-Year Warranty
We confidently back all our products with a 3-year warranty. Our specific service policy is: within one year for quality issues, we take full responsibility for returns; within two years, for replacements; and within three years, for repairs.
Clear & Competitive MOQ
We welcome both trial and bulk orders. Our standard Minimum Order Quantity (MOQ) is 50 units. We also offer free samples for testing to help you evaluate our quality with confidence.
Fast & Reliable Logistics
We guarantee delivery within 10 days for standard items. Our logistics advantage includes cost-effective door-to-door service to simplify shipping for you.
Our Foundation
Backed by 18 years of experience since 2008, we control quality from our own factory, accept OEM/ODM requests, and maintain ready stock for wholesale. We focus on delivering the optimal balance of price and quality directly to end customers worldwide.
Your trust is our priority. Partner with us for dependable fiber optic solutions supported by clear promises.
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