Cable Families for Indoor, Aerial, Duct and Buried Routes
Fiber Optic Cable Selection for FTTx and Network Projects
Start with the physical route, not the cable-family label. Mark every change in environment or installation method. Then define the optical requirements and installation loads before shortlisting an indoor, aerial, duct or burial-suitable family.
Category Products
Fiber Optic Cable Product Range
Fiber Optic Cable
1F G.657.A2 5.0mm Dual-Sheath Round FTTH Drop Fiber Optic Cable
Fiber Optic Cable
GYFXBY 2-12F 100m Span Flat All-Dielectric Aerial Fiber Optic Cable
Fiber Optic Cable
1F Self-Supporting Butterfly-Type FTTx Drop Fiber Optic Cable
Fiber Optic Cable
GJYXFCH-1B6a1 LSZH Outdoor FTTH Drop Fiber Optic Cable
Fiber Optic Cable
GJYXFCH 2F G.657.A2 FRP LSZH Figure-8 FTTH Drop Fiber Optic Cable
Fiber Optic Cable
GJYXCH 1F Self-Supporting LSZH FTTH Drop Fiber Optic Cable
Product Selection
Find the right fiber optic cable family
Shortlist by installation route, then confirm the exact construction and documented limits on the model page or controlled datasheet.
Installation RouteIndoor, aerial, duct, buried, access or backbone
Fiber and CapacityFiber grade, working fibers, branches and reserve count
Cable ConstructionTight-buffered or loose-tube, support, armor and water blocking
Environment and ApprovalSheath, load, temperature, dimensions and project documents
Selection Guide
How to specify fiber optic cable
The route matrix below identifies the first cable family to investigate and the conditions that can disqualify a model.
| Route or Network Job | Start With | Do Not Approve Until You Verify |
|---|---|---|
| Subscriber drop | FTTH drop cable | Indoor/outdoor transition, support method, bend path, fiber grade and count, sheath rating and termination hardware. |
| Self-supporting aerial route | ADSS outdoor cable | Span, sag, tension, wind and ice conditions, pole hardware, clearances, temperature and the selected model's load data. |
| Duct or mechanically exposed route | Armored fiber optic cable or a documented duct cable | Pulling tension, crush, bend, duct occupancy, water management, grounding implications and declared installation use. |
| Building or controlled indoor pathway | Indoor fiber cable | Applicable fire and smoke requirements, pathway, construction, bend limits, termination method and exact jacket documentation. |
| Buried route | A model explicitly documented for the burial method; use the direct-burial cable guide for installation-specific planning | Direct-burial declaration, armor and sheath construction, water blocking, soil and rodent exposure, depth, warning/protection method and local project rules. |
What BWNFiber's published model pages establish
FTTH drop and indoor cable: BWNFiber's FTTH drop range lists G652D, G657A1 and G657A2 options. The indoor category lists PVC or LSZH jackets and both tight-buffered and loose-tube constructions. The exact combination and project rating still depend on the model.
4 to 144 cores single-sheath ADSS cable: this model page describes an all-dielectric, self-supporting loose-tube cable with 4 to 144 fibers. It lists a polyethylene sheath, an HDPE entry in the materials table and spans from 100 to 1500 m. Because the FRP and sheath specifications change with span, approve the route engineering and configuration-specific datasheet together.
Aerial self-support FTTH drop cable: the page lists 1F, 2F, 4F, 6F and 12F configurations. Its summary dimensions do not agree with the detailed fiber-count tables, so this page does not repeat them. Ask for the construction drawing, strength-member option and approved dimensions of the model being quoted.
Other drop models: Double Sheath FTTH Drop Cable lists one 1F G657A2 configuration with an outside diameter of 4.5 ± 0.2 mm. The 1 to 4 Cores Single Armored Outdoor FTTH Drop Cable page lists 7.0 ± 0.4 mm. These dimensions belong to those listed models, not the entire category.
Specification notice: Product-family descriptions and example figures on this page are for selection reference only, not a guarantee for every configuration. Final approval must use the selected part number, current datasheet, agreed drawing, test requirements and purchase specification. Standards, ratings and installation suitability apply only when they are documented for that exact model and project.
Need model-specific specifications or drawings?
Send the route, installation method, fiber grade and count, construction requirements and reference model. BWNFiber can use those inputs to identify the relevant published cable family and the configuration details that still require clarification. Document availability and final values depend on the selected model.
Request Model-Specific Documents Eight-Step Selection Workflow
How to choose fiber optic cable for a project
Use the same sequence for design review, supplier comparison and purchase approval. It prevents a lower-priced but technically different construction from appearing equivalent.
- Map the complete route. Divide the path wherever the environment or installation method changes: equipment room, building pathway, exterior wall, duct, handhole, buried section, pole span or subscriber drop.
- Freeze the optical-system assumptions. Record transmission equipment, wavelength, link distance, target capacity, loss budget and compatibility constraints before selecting a fiber grade. For single-mode terminology, check the project-specified editions of ITU-T G.652 and ITU-T G.657; the fiber designation does not approve the complete cable.
- Set the fiber grade and count. Separate working fibers, restoration or redundant paths, branches and planned reserve; confirm that closures, distribution boxes and termination hardware support the count.
- Select the cable construction. Choose loose-tube, tight-buffered, stranded, central-tube, ribbon or another documented design according to handling, pathway space, termination method and environmental load.
- Define protection and ratings. State water blocking, armor, rodent strategy, UV, fire and smoke classification, dielectric or grounding requirements, chemicals and temperature conditions.
- Calculate installation limits. Confirm cable diameter and weight, drum length, maximum pulling tension, crush and impact criteria, loaded and installed bend limits, span, sag, wind, ice and hardware where applicable.
- Define inspection and acceptance evidence. Agree on the applicable test methods, optical criteria, dimensional checks, markings, packaging, factory records and any project witness or sample requirements.
- Lock the approved configuration. Put the exact part number, drawing revision, datasheet revision, fiber and tube color code, sheath marking and approved deviations into the purchase specification before production.
| Quotation Field | What Must Match Across Suppliers | Evidence to Request | Stop or Clarify When |
|---|---|---|---|
| Fiber and optical design | Exact fiber grade, count, wavelengths and project optical limits | Fiber specification, attenuation criteria and configuration-specific datasheet | The quote says only "single-mode," "multimode" or "low loss" |
| Cable construction | Tube or buffer design, strength members, armor, water blocking, sheath layers and dimensions | Cross-section drawing, bill of materials summary and dimensional tolerance | Two quotations use the same family name but different constructions |
| Mechanical requirements | Installation and long-term tension, crush, impact, bend and route-specific loads | Test method, applied load, duration and optical or physical pass criteria | A force value is shown without units, test method or short-/long-term condition |
| Environment and rating | Operating/installation temperature, UV, moisture, fire/smoke, chemicals and electrical constraints | Declared rating, applicable test report or certificate and exact model identification | A material name such as PE or LSZH is presented as complete compliance proof |
| Supply and logistics | Approved length, drum tolerance, gross dimensions, marking, packaging, quantity and schedule | Drum plan, production drawing, inspection plan and deviation list | MOQ, lead time or drum length assumes a different configuration |
Fiber optic cable supplier evidence scorecard
Judge a supplier by whether its offer traces back to one controlled cable configuration. The number of product families in the catalog says little about the model being quoted.
| Supplier Check | Acceptable Evidence | Risk Signal |
|---|---|---|
| Configuration control | One part number links the quotation, cross-section, dimensions, material description and datasheet revision. | The quote uses only a family name, or different documents show different constructions. |
| Requirement traceability | A compliance matrix answers every project requirement with a value, document reference or declared deviation. | "Complies" appears without the tested model, criterion, method or supporting record. |
| Mechanical and environmental evidence | Test records identify the cable model, applied load or condition, duration where relevant and pass criteria. | Tensile, crush, temperature, water or fire claims have no configuration or test context. |
| Change and deviation control | Material substitutions, dimensional changes and exceptions require written approval before production. | The supplier can change "equivalent" materials without revising the approved documents. |
| Production and inspection plan | The offer states inspection points, lot or drum identification, records supplied and any sample or witness stage. | A sample is offered, but there is no agreed acceptance plan for the bulk order. |
| Commercial and logistics alignment | MOQ, lead time, drum length, marking, packaging and delivery assumptions match the approved configuration. | Price or schedule is based on a standard construction that differs from the technical offer. |
Common fiber optic cable procurement mistakes
| Mistake | Why It Fails | Corrective Action |
|---|---|---|
| Approving a family name | ADSS, armored, drop and indoor/outdoor labels cover multiple constructions and performance limits. | Approve the exact part number, drawing revision, datasheet and declared installation use. |
| Treating armor as burial approval | Armor describes a protective element; it does not establish water blocking, sheath suitability or permission for the burial method. | Require a model-specific direct-burial declaration and review the soil, water, rodent and protection conditions. |
| Comparing quotations before freezing the baseline | Two prices may represent different fiber, strength, armor, sheath, test or drum configurations. | Issue one requirement schedule and require every supplier to list deviations and exclusions. |
| Mixing bulk cable and connectorized-link scope | Connector type, polarity and transceiver compatibility may belong to assemblies or system design rather than the bulk cable itself. | Separate bulk cable, closures, pigtails, patch cords, connectors and transceivers in the BOM and acceptance plan. |
| Accepting a sample without acceptance criteria | A visually acceptable sample does not prove dimensions, materials, loads, optical limits or repeatability in production. | Define the sample checks and link the approved sample to controlled documents and bulk inspection records. |
| Using factory cable results as installed-link acceptance | Installation adds splices, connectors, bends, route stress and workmanship that factory cable tests do not measure. | Define separate commissioning methods, wavelengths, directions, limits and record formats for the completed link. |
Model approval gate
Do not release a bulk order from a category page, family name or marketing summary. Approve one controlled configuration containing the part number, drawing and datasheet revisions, test criteria, sheath marking, packaging and accepted deviations. If a web summary conflicts with a technical table, pause and obtain a corrected controlled document.
Installed-link acceptance is a separate scope
Factory cable evidence does not replace installed-link commissioning. The project designer should define continuity, polarity, insertion-loss or OTDR requirements, test direction, launch/receive setup, wavelengths, pass limits and record format for the completed route. Use BWNFiber's fiber optic cable testing guide for the separate field-testing workflow.
What changes price, MOQ and lead time?
Compare commercial terms only after the technical baseline is locked. Fiber grade and count, cable diameter, strength and armor system, sheath compound and rating, drum length, marking, test evidence, packaging and order quantity can all change material use or production setup. Ask each supplier to identify assumptions and exclusions rather than comparing one total price.
When should a buyer request a sample or first-article review?
Use a sample, short trial length or first-article review when the construction is customized, the route has unusual load or environmental conditions, or the order is difficult to replace after shipment. Agree in advance which dimensions, markings, construction details and tests will be checked; a sample without acceptance criteria does not reduce approval risk.
Discuss Sample and Quotation Requirements BWNFiber Project Cable Review: Route to Release
What happens after you send a cable requirement?
This review turns an early route description or an existing BOM into a controlled configuration for clarification and quotation. The project designer remains responsible for approval.
1. Submit the project inputs
Send the network role, route, installation method, fiber grade and count, mechanical and environmental conditions, length, drum plan, destination, target schedule and required documents. For OEM/ODM requests, add sheath marking, label or artwork, packaging and document-language requirements. A route drawing, cable schedule or reference part reduces avoidable assumptions.
2. Clarify the cable configuration
BWNFiber can review the requirement against the relevant published cable family, identify missing fields and separate bulk cable scope from drop cable, patch cord or MPO/MTP assembly interfaces. Unresolved values remain open rather than being filled with a generic category claim.
3. Define the next approval step
After the configuration is clear, request the applicable datasheet or drawing, quotation assumptions, feasibility of custom marking, packaging or drum requirements, MOQ and lead-time confirmation, and any agreed sample, test-record or inspection stage. Confirm destination-specific shipping documents separately. Release a bulk order only against the approved documents.
For FTTx and data center projects: use the FTTx solution or Quick ODN architecture for network context, and keep connectorized equipment links on the patch cord or MPO/MTP path.
Ask for a Project-Based Cable Recommendation Applications
Fiber optic cable applications
Use the network role to identify interfaces that a cable-only specification can miss: closures, hardware, pathways, termination and commissioning.
FTTx access and subscriber drops
Coordinate feeder, distribution and drop cables with closures, distribution boxes, splitter locations, subscriber routes, splice plans and reserve-fiber requirements. For system-level planning, review the FTTx solution and Quick ODN architecture.
Aerial and utility routes
Review self-support, messenger or supported construction together with span, sag, wind, ice, tension, hardware, clearances and maintenance conditions.
Buildings, campuses, ducts and buried routes
Match indoor, indoor-outdoor, duct, armored or burial-suitable cable to pathway space, pulling conditions, moisture, fire requirements, mechanical exposure and termination hardware.
Data centers and equipment links
Separate permanent bulk-cable routes from connectorized equipment links. When the requirement includes LC, SC, MPO/MTP, polarity, connector gender or factory termination, continue to fiber optic patch cords or the MPO/MTP data center guide.
FAQ
Fiber optic cable selection questions
Which cable-family details are not enough to approve a model?
A family name, fiber count, jacket material or the words "outdoor" and "armored" are not enough for approval. Verify the exact part number, construction drawing, fiber grade, dimensions, strength system, optical and mechanical limits, temperature range, declared installation use and project documents.
How do I choose fiber optic cable for a project?
Start with the installation route and network role, then specify fiber type and count, cable construction, strength member, sheath, armor or water blocking, tensile and crush requirements, temperature, span or duct conditions and required approval documents.
What is the difference between indoor and outdoor fiber optic cable?
Indoor cable is selected around building routes, handling and the project's fire and smoke requirements. Outdoor cable is selected for moisture, UV, temperature and mechanical exposure. A cable should only be approved for the environments and ratings documented for the exact model.
What is the difference between FTTH drop cable and feeder cable?
FTTH drop cable normally connects the distribution point to a subscriber or access endpoint, while feeder cable carries more fibers toward distribution nodes. Confirm fiber count, route, span, support method, cable entries and splice plan instead of selecting by the word drop or feeder alone.
What is ADSS fiber optic cable?
ADSS means all-dielectric self-supporting cable. It uses non-metallic strength elements and is designed to support its own weight on an aerial route. Span, sag, tension, wind, ice and hardware must be engineered for the selected cable and installation.
What is the difference between armored and direct-burial fiber cable?
Armored describes a protective cable construction; direct burial describes an installation method. An armored cable is not automatically approved for direct burial. Verify the exact model's declared use, armor, water blocking, sheath and project requirements.
How many fibers should a fiber optic cable have?
Count the working fibers, planned services, redundant paths, branching and future reserve. Select a published fiber-count configuration that fits the splice closures, distribution boxes and termination hardware; do not size the cable from current active ports alone.
What should I do if a product summary and technical table show different values?
Stop the approval and request a configuration-specific datasheet or drawing with a revision date. Do not choose the more favorable value or copy a summary value into the purchase specification. Resolve the discrepancy in writing before sampling, quotation approval or production.
How do strength members and cable sheaths affect selection?
Strength members carry or control installation loads, while the sheath protects the cable from its environment. Their material and construction affect pulling, self-support, bend behavior, grounding considerations, UV exposure and project ratings, so both must be reviewed at model level.
Can the same fiber cable be installed aerial, in ducts and directly buried?
Only when the selected model is documented for those installation methods and meets the project's mechanical and environmental requirements. Aerial routes require support and load review; ducts require pulling and space review; direct burial requires suitable protection and water management.
What technical documents should be checked before cable approval?
Review the model datasheet, cable cross-section, dimensional and weight data, fiber and color code, tensile, crush and bend limits, temperature range, sheath marking, installation guidance and any project-required test or compliance evidence.
What information is needed for a fiber optic cable quotation?
Send the route, installation method, fiber grade and count, cable construction, strength member, armor or water blocking, sheath and rating, tensile or span requirement, temperature, length, drum plan, quantity and required approval documents.
BWNFiber Project Cable Review: Route to Release
Ready to Clarify a Fiber Optic Cable Requirement?
Send your cable schedule, route drawing, BOM or reference part. BWNFiber can review the applicable product family, missing specification fields, document requirements and the inputs needed for a configuration-specific quotation.
Start a BWNFiber Project Cable Review