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FTTH Drop Cable Indoor All Dielectric
FTTH Drop Cable Indoor All Dielectric uses two 0.5 mm FRP strength members, an LSZH jacket and a nominal 3.2 × 2.0 mm flat profile. Standard 1-, 2- and 4-fiber single-mode configurations are intended for indoor subscriber drops between building distribution points and optical network terminals.
FTTH Drop Cable Indoor All Dielectric Overview
This flat indoor drop cable is designed for short subscriber connections inside residential and commercial buildings. Its dielectric construction contains no metallic strength elements; two FRP members support the optical fibers inside the compact LSZH cable body.
Typical routes run from a floor or building distribution point to the subscriber optical network terminal in an apartment, villa or office. The 3.2 × 2.0 mm profile is suitable for wall clips, skirting-board routes, risers and compact indoor conduits.
Compact indoor structure
The nominal 3.2 × 2.0 mm flat geometry supports tidy routing in space-limited indoor pathways.
LSZH outer jacket
The low-smoke, zero-halogen sheath is intended for indoor building routes that specify LSZH cable materials.
Non-metallic reinforcement
Two 0.5 mm FRP strength members provide mechanical support while maintaining an all-dielectric cable structure.
Related FTTH and fiber pages
For broader planning, installation and product comparison, you can review the related pages below:
Construction of FTTH Drop Cable Indoor All Dielectric
The cable places the optical fibers between two parallel FRP strength members and encloses the assembly in a flat LSZH jacket. This dry, non-metallic construction is designed for indoor FTTH routing and direct subscriber connections.
Optical fiber
Standard 1-, 2- and 4-fiber configurations use 9/125 µm single-mode optical fibers for FTTH access links.
FRP strength members
Two 0.5 mm FRP elements reinforce the cable without adding steel wire or another metallic component.
LSZH outer sheath
The low-smoke, zero-halogen outer sheath is available in white or black to match the specified indoor route.
Flat compact profile
The nominal 3.2 × 2.0 mm profile fits wall runs, risers and compact indoor pathways.
Fiber types referenced for this cable family include options such as G.652.D and G.657 bend-insensitive variants. For reference, you can review ITU-T G.657 and the general background of LSZH materials.
Indoor FTTH Applications
FTTH Drop Cable Indoor All Dielectric is used for the final building-side connection between an optical distribution point and the subscriber terminal. Its flat profile supports surface clipping and routing through indoor conduits, risers and wall-entry paths.
Residential FTTH lines
Suitable for apartment blocks, villas and subscriber-side indoor drop routing.
Office and building networks
Suitable for compact indoor access paths from floor distribution points to office termination locations.
Indoor interconnect and patching
Suitable for low-fiber-count indoor interconnect routes where a compact flat cable is required.
Short outdoor transition
A black LSZH jacket may be specified for a short external transition where the route and project requirements permit it.
Typical routing scenarios
- Indoor FTTH distribution in residential and commercial buildings
- Horizontal runs and riser paths
- Clipping to surfaces such as skirting boards
- Indoor interconnect and patch-cord related applications
- Local area network and access network segments
FTTH Drop Cable Indoor All Dielectric Specifications
Standard configurations cover 1, 2 or 4 single-mode fibers in a nominal 3.2 × 2.0 mm LSZH cable body with two 0.5 mm FRP strength members.
| Specification | Value |
|---|---|
| Fiber count | 1, 2 or 4 fibers |
| Strength members | 2 × 0.5 mm FRP |
| Outer jacket | LSZH, white or black |
| Nominal cable size | 3.2 × 2.0 mm |
| Optical fiber options | 9/125 µm G.652.D and G.657 bend-insensitive single-mode variants |
| Wavelengths | 1310 / 1550 nm |
| Attenuation at 1310 / 1550 nm | 0.35 / 0.25, 0.34 / 0.24 or 0.34 / 0.22 dB/km, according to the specified fiber |
| Approximate weight | 9.0 kg/km |
| Tensile load, permanent / installation | 100 / 200 N |
| Crush resistance | 200 N / 10 cm (IEC 60794-1-2 E3) |
| Temperature range | -10°C to +60°C (IEC 60794-1-2 F1) |
| Minimum bending radius | 15 × outer dimension for 1 fiber; 10 × outer dimension for 2- and 4-fiber configurations |
Standards and Compliance
The listed construction and test references cover structured cabling, optical fiber, cable mechanical performance, flame propagation and halogen gas behavior. Confirm the required CPR class and project-specific documentation separately for each destination market and building route.
Referenced standards
EN 50173-1, IEC 60754-2, IEC 60794-1 and IEC 60794-2, IEC 60793-1 and IEC 60793-2, IEC 60332-1 and IEC 60332-2
Material and fire behavior
The LSZH sheath addresses low-smoke and halogen gas requirements; the applicable building cable classification must be specified in the RFQ.
Project relevance
State the destination country, installation route, CPR class and required test documents before order confirmation.
If your project also includes fire-class related building cable requirements, review our CPR compliant cables page for the regulatory side of cable performance in construction works.
How to Select the Indoor FTTH Drop Cable
Select the cable by matching its dielectric structure, fiber count, dimensions and mechanical limits to the indoor route and termination hardware. Confirm the following points before requesting a quotation:
- Dielectric construction: use the FRP-reinforced version where the route requires a cable without metallic strength members.
- Fiber count: select 1, 2 or 4 fibers according to the active subscriber requirement and planned reserve.
- Fiber type: specify G.652.D or the required G.657 bend-insensitive variant for the bend path and termination method.
- Cable dimensions: verify that the nominal 3.2 × 2.0 mm profile fits the wall clips, conduit entries, boxes and optical network terminal.
- Mechanical limits: check the 100 / 200 N permanent and installation tensile loads, 200 N / 10 cm crush resistance and minimum bend radius against the route.
- Jacket and environment: confirm LSZH, jacket color, temperature range and any required CPR class for the indoor building path.
- Termination method: state whether the installation uses fusion splicing, field connectors or pre-terminated assemblies.
Need a different FTTH drop cable type?
If your route requires additional mechanical protection or outdoor suspension, you may be better served by a different construction.
- Indoor metallic armored FTTH drop cable for stronger mechanical protection
- FTTH drop aerial cable for suspended outdoor access routes
FAQ About FTTH Drop Cable Indoor All Dielectric
What does all-dielectric mean in an FTTH drop cable?
It means the cable body contains no metallic strength member. This construction uses two FRP members to reinforce the optical fibers.
Where is FTTH Drop Cable Indoor All Dielectric typically used?
It is used between an indoor optical distribution point and the subscriber terminal in apartments, villas, offices, risers, conduits and surface-clipped routes.
Why is LSZH important for indoor fiber cable?
An LSZH jacket is designed to limit smoke and halogen gas emission compared with conventional halogenated cable materials. The required CPR class must still be confirmed separately.
How do I choose between indoor all-dielectric and armored drop cable?
Use the all-dielectric version for compact indoor routes that require no metallic elements. Use an armored construction where the cable needs additional crush or impact protection.
Looking for the right indoor FTTH drop cable?
Share your fiber count, routing details and installation environment. UPCOM can help you identify the suitable FTTH drop cable construction for your project.