Indoor FTTH cable
Drop Fiber Cable for Indoor FTTH Applications
Drop Fiber Cable is a round tight-buffer mini breakout cable built for indoor FTTH applications where compact diameter, easy stripping and direct termination matter more than heavy outdoor protection.
The I-V(ZN)H Drop construction uses individually buffered fibers, aramid yarn strength members and LSZH sheath materials, making it a practical choice for building entry, risers, horizontal distribution and direct connection to terminal equipment.
Drop Fiber Cable overview
This Drop Fiber Cable page is focused on indoor FTTH use cases, not exposed outdoor spans. Where route conditions include facade runs, aerial spans or mixed indoor/outdoor exposure, it is worth comparing this construction with Aerial FTTH Drop Non-Metallic Cable, FTTH Drop Indoor Non-Metallic Cable and FTTH Drop Aerial Cable.
Why this drop fiber cable is easy to terminate
- Individually buffered fibers support cleaner end preparation.
- Aramid yarn strength members help handling during pulling and routing.
- Round compact geometry works well where pathway space is limited.
- LSZH materials suit indoor environments where smoke and corrosive gas behavior matter.
Where this drop fiber cable performs best
- Indoor FTTH drop sections inside buildings
- Intrabuilding voice and data communication networks
- Direct connection to terminal equipment
- Vertical riser and general horizontal applications
- LAN and compact indoor distribution routes
Compact diameter
Helps in narrower pathways and dense telecom rooms.
Dry design
Supports cleaner indoor handling and straightforward termination work.
All-dielectric build
Non-metallic construction supports use around sensitive telecom environments.
Flexible handling
Suitable for direct routing where installers need fast, practical cable preparation.
Drop Fiber Cable technical specifications
The table below brings the product page and datasheet values into a cleaner format so specifiers can review the indoor FTTH options faster.
| Specification | 1 fiber | 2 fibers | 4 fibers |
|---|---|---|---|
| Construction | Round tight-buffer mini breakout | Round tight-buffer mini breakout | Round tight-buffer mini breakout |
| Strength members | Aramid yarns | Aramid yarns | Aramid yarns |
| Tight buffer jacket | LSZH | LSZH | LSZH |
| Outer jacket | LSZH | LSZH | LSZH |
| Tight buffer diameter | 900 ±50 µm | 900 ±50 µm | 900 ±50 µm |
| Fiber options | 9/125 G.652.D | 9/125 G.657A1 | 9/125 G.657A |
| Operating wavelengths | 1310 / 1550 nm | 1310 / 1550 nm | 1310 / 1550 nm |
| Max attenuation | 0.35 / 0.25 dB/km | 0.34 / 0.24 dB/km | 0.34 / 0.22 dB/km |
| Weight | 4.4 kg/km | 9.50 kg/km | 13.5 kg/km |
| Outer diameter | 2.40 mm | 3.00 mm | 3.5 mm |
| Tensile load (perm / inst) | 150 / 300 N | 200 / 400 N | 300 / 600 N |
| Crush resistance | 200 N/10 cm | 200 N/10 cm | 200 N/10 cm |
| Temperature range | -10 °C to +60 °C | -10 °C to +60 °C | -10 °C to +60 °C |
| Minimum bending radius | 20 x outer diameter | 20 x outer diameter | 20 x outer diameter |
| Maximum delivery length | 2000 m | 2000 m | 2000 m |
Final project approval should always follow the latest datasheet, fiber type preference and fire-performance requirement of the installation environment.
Drop Fiber Cable applications
Indoor FTTH building routes
This drop fiber cable is a practical choice for protected indoor FTTH runs where the priority is controlled routing, easy stripping and direct termination near the end point.
Risers, corridors and telecom rooms
The compact round structure supports vertical and horizontal indoor pathways, especially where installers need a neater cable path in limited space.
Terminal equipment connections
Tight-buffer handling can simplify connectorization and shorten the preparation work compared with constructions designed mainly for harsher outside routes.
Selection support before ordering
If the route is mixed, exposed or difficult to access, review the FTTH Drop Cable Selection guide and the Fiber Optic Cable Installation Guide before locking the final cable type.
Best fit
Protected building interiors, short access sections, terminal connection points and clean telecom spaces.
Re-check the design
Once the route leaves the controlled indoor environment, compare indoor/outdoor and aerial alternatives immediately.
Think beyond one segment
Review the wider FTTH deployment guide if the cable is part of a larger access rollout.
How to choose a Drop Fiber Cable
- Define the route clearly. Confirm whether the cable stays fully indoors or transitions into duct, facade or aerial sections.
- Choose the fiber count. This page covers 1, 2 and 4 fiber options for compact indoor FTTH and in-building use.
- Select the right fiber type. Match G.652.D or G.657 family options to the bend and network requirements of the job.
- Check fire-performance expectations. Indoor projects often require LSZH constructions and project-specific compliance references.
- Validate termination method. Direct connection and end preparation should match the connector, outlet and technician workflow.
- Compare installation conditions. Use the fiber optic cables range to compare this product against other UPCOM cable families before final approval.
A drop fiber cable should be selected by route condition first, then by fiber type, fire requirement and termination workflow.
Drop Fiber Cable standards and compliance
The current product information references DIN VDE 0888 Part 6 together with IEC 61034, IEC 60332-2, IEC 60754-2 and IEC 60794-1&2. The listed fiber options also align with the single-mode families commonly associated with ITU-T G.652 and ITU-T G.657.
Why these references matter
- IEC 60332-2-2 covers single small cable flame propagation testing.
- IEC 60754-2 addresses acidity and conductivity of gases evolved during combustion.
- IEC 61034 is used for smoke-emission measurement under defined conditions.
Where to read more on UPCOM
FAQ for Drop Fiber Cable
What is the main use of this drop fiber cable?
It is designed for indoor FTTH and in-building telecom routes where compact size, easy stripping and direct termination are important.
Is this drop fiber cable suitable for exposed aerial installation?
Not as the default first choice. For exposed aerial or mixed-route sections, compare the dedicated aerial FTTH drop cable options before specification.
Which fiber standards are listed for this product?
The page and datasheet point to G.652.D, G.657A1 and G.657A single-mode options depending on the selected construction.
Why does tight-buffer construction matter on an indoor FTTH route?
Tight-buffer handling generally makes stripping and termination easier, which helps on short indoor access runs and direct terminal connections.
What should be checked before ordering?
Confirm route type, fiber count, fiber family, fire-performance requirement, bending conditions and the exact termination method at the end point.