Indoor Tight-Buffered Optical Cables | 900μm Tight-Buffered, Simplex & Duplex Fiber Types
What is an Indoor Tight-Buffered Fiber Optic Cable?
Indoor tight-buffered fibers (900μm tight-buffered) are used as a central structure and are armed with Kevlar aramid yarns, which have a good flame retarding feature. They are even more flexible than outdoor loose-tube cables. They are more compact; therefore, they can be used indoors as preferred.
It is used often in the following basic cases:
- It is a connection between the distribution frame and the equipment, the patch cords.
- In-house connectivity of devices (like ONU, transceiver).
- Drop wiring for FTTH (Fiber to the Home) provides a line connection to homes.
- Fabrication of fiber pigtails and patch cords.
The cables feature easy stripping, superior flexibility, and universal installation, making them suitable for various amplification purposes in communications or networking systems.
Technical Parameters Comparison
Product Name | Fiber Count | Fiber Type | Strength Member | Jacket Type | Typical Diameter | Application Highlights |
Tight-Buffered Fiber | 1 | G.657.A1/A2 | None / Kevlar | Optional | 0.9 mm (bare fiber) | Patch cords, pigtails, splicing |
Simplex Round Indoor Cable | 1 | G.652.D | Kevlar Yarn | LSZH / PVC | 2.0 / 3.0 mm | Indoor patch cords, termination wiring |
Duplex Flat Indoor Cable A | 2 | G.657.A2 | None | LSZH | 2.0x3.0 mm | ONU connections, optical transceiver links |
Duplex Flat Indoor Cable B | 2 | G.657.A2 | FRP / Steel Wire | LSZH | 2.0x5.0 mm | High-strength cabling, complex routing |
Indoor Tight-Buffered Cable Product Range
a complete series of indoor tight-buffered cables, differentiated into four major categories:
1️⃣ Tight-Buffered Fiber
- Structure: (900μm) Tight buffered fibers that, if needed, can come with the outer coat or remain bare
- Advantages: Simple for fusion or mechanical splicing, easy handling, and wrapping.
- Applications: Suitable for pigtails, patch cords, and indoor connections over short distances.
- Recommended Types: G.657.A1 / A2, G.652.D
2️⃣ Simplex Round Indoor Cable
- Structure: One 900μm tight-buffered fiber reinforced with Kevlar strength members and LSZH or PVC flame-retardant sheath.
- Advantages: High-reliability, low smoke, and LSZH which is compatible with standard connectors.
- Typical Use: A patch cord form device-to-device connections, patch panels, FTTH, and intelligent building wiring.
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3️⃣ Standard Parallel Duplex Flat Indoor Cable (Type A)
- Structure: Two equal lengths of 900μm tight-buffered fibers, with a flat LSZH jacket or surrounded by an outer jacket.
- Advantages: Ideal for flat surface layouts, with easy installation and maintaining flexibility.
- Typical Use: The optical transceivers, ONU devices, and duplex communication modules are the components to which this connection line is attached.
4️⃣ Enhanced Duplex Flat Indoor Cable (Type B)
- Structure: Fibers and FRP or Steel wire as the strength component in the cable, protected by an LSZH flat jacket (available both black and white).
- Advantages: Enhanced tensile and compression strength allows for longer connections and complex routing.
- Applications: Building backbone extension, splitter connect, and indoor FTTH systems demanding higher mechanical durability.
Packaging & Service Support
- Delivery Options: In coils or bundled bags, respectively, as specified.
- Customization: Length, color, printing, and labeling options are available upon request.
- OEM/ODM: Brand custom decoration, color jacket printing, and connectors termination services.
Why Choose Hoton Link ?
Advantages | Description |
Complete Product Line | Full range from bare fibers to patch cord level indoor cables |
High-Quality Fiber | Sourced from Corning, YOFC, Fujikura, and other OEM leaders |
Fast Delivery | Standard stock products available; custom orders delivered within 7-15 days |
International Compliance | All products meet RoHS, REACH, ISO9001 standards |
Engineering Support | Comprehensive selection, customization, installation support, and sample testing |
Customize Your Indoor Optical Fiber Cable
0086-755-23002989
info@hotonlink.com
hotonlink
0086-18123718803
Room 506, 5th floor No.48 Huaide South Road,Cuigang Industrial Zone 4,Fuyong Street,Baoan Shezhen China 
