Tight Buffer Indoor Fiber Cable for Buildings

Anxun optical fiber Co., Ltd.

Verified Custom manufacturer · 7 yrs ·

China

Customizable Rock-bottom price

$95 1-49 kilometers Base price

$91 50-99 kilometers 4.2% off

$89 ≥100 kilometers 6.3% off

Price validity: subject to market conditions

Supplier's customization ability

Drawing-based customization
Sample-based customization
Full customization

Quantity

Minimum order quantity: 1 kilometers

Shipping total: To be negotiated

Subtotal of goods US$ 95.00

Start order request

Payment and delivery

Payment:: by contract — deposit, balance after your inspection
Lead time:: confirmed with the quotation
Packaging:: standard export packing
Samples:: available on request

Product details

Technical Specifications of Tight Buffer Indoor Fiber

Property	Parameter	Description
Optical Fiber Product Name	Tight Buffer Indoor Fiber	Single-mode / multimode tight-buffered optical fiber designed for indoor installation environments
Fiber Grade & ITU-T Classification	G.652.D (SM) / OM3 / OM4 (MM)	Compliant with ITU-T G.652.D for single-mode; IEC 60793-2-10 for multimode variants
Core & Cladding Diameter Range	Core: 8.2 µm (SM) / 50 µm (MM); Cladding: 125 ± 0.7 µm	Tight dimensional tolerance ensures consistent splice and connector performance
Attenuation Coefficient at 1310 nm	≤ 0.35 dB/km (SM)	Measured per IEC 60793-1-40; low attenuation supports long indoor link distances
Attenuation Coefficient at 1550 nm	≤ 0.20 dB/km (SM)	Optimized for C-band transmission in high-density indoor backbone applications
Macrobending Loss Performance	≤ 0.10 dB at R = 15 mm (100 turns, 1550 nm)	Enhanced bend-insensitive design suitable for tight routing in conduits and trays
Chromatic Dispersion Coefficient	≤ 18 ps/(nm·km) at 1550 nm	Meets ITU-T G.652.D dispersion specification for standard single-mode fiber
Batch Qualification Rate	≥ 99.5%	Each production batch undergoes 100% OTDR and attenuation screening before shipment
Manufacturing Environment Standards	ISO 9001:2015 certified cleanroom production	Controlled dust-free environment ensures consistent coating adhesion and buffer integrity
Core Raw Material Source	High-purity synthetic silica preform (SiO₂ ≥ 99.99%)	Preform sourced from qualified tier-1 suppliers; traceable material certificates provided
Packaging Specification	Spool: 1 km / 2 km / 5 km per reel; reel diameter 280–400 mm	Wooden or plastic reels with moisture-proof wrapping; custom lengths available on request
Storage Conditions	Temperature: -20 °C to +60 °C; Humidity: 10%–85% RH (non-condensing)	Store away from direct sunlight and corrosive chemicals; keep reel upright
Valid Shelf Life	≥ 20 years under recommended storage conditions	UV-stabilized tight buffer coating prevents degradation during long-term storage
Application Scenarios	Indoor backbone, riser, horizontal distribution, FTTH drop, data center patch	Suitable for direct termination without additional furcation tubing due to tight buffer structure
Compliance & Certification	ITU-T G.652.D, IEC 60793-2-50, RoHS 2011/65/EU, REACH, UL Listed (OFNR/OFNP)	Flame-retardant jacket meets UL 1666 riser and UL 910 plenum ratings as applicable
Minimum Order Quantity (MOQ)	5 km (single-mode); 2 km (multimode)	Mixed fiber type orders accepted; sample reels of 500 m available for qualification testing
Monthly Supply Capacity	500,000 km / month	Supported by automated draw tower lines with real-time process monitoring and QC traceability

Tight Buffer Indoor Fiber Cable for Buildings

Tight buffer indoor fiber cable is widely recognized as the premier choice for in-building optical network deployments across commercial, industrial, and institutional environments worldwide. Engineered specifically for interior routing applications, this type of indoor fiber delivers exceptional flexibility, mechanical protection, and ease of termination that loose-tube alternatives simply cannot match in confined spaces. From enterprise LAN backbones and riser installations to patch cord assemblies and horizontal distribution runs, tight buffer indoor fiber cable serves as the backbone of modern structured cabling systems. Its compact design enables efficient routing through conduits, cable trays, and plenum spaces, making it indispensable for data centers, office buildings, hospitals, and campus networks. As demand for high-bandwidth connectivity continues to accelerate, specifying the correct tight buffer fiber solution has become a critical factor in delivering reliable, future-proof indoor optical infrastructure that meets both performance and safety standards.

What is Tight Buffer Indoor Fiber?

Tight buffer indoor fiber is an optical fiber cable design in which each individual glass fiber strand is directly coated with a protective thermoplastic buffer layer, typically 900 µm in diameter, applied tightly over the primary coating. This construction eliminates the gel-filled loose tube found in outdoor cables, resulting in a cleaner, more manageable cable that complies with IEC 60794, ANSI/TIA-568, and NFPA 70 (NEC) indoor flame-retardancy requirements. The tight buffered structure provides superior crush resistance and simplified fiber identification for fast, reliable termination.

Tight Buffer Indoor Fiber Manufacturing and Production Process

Production of tight buffer indoor fiber cable takes place in ISO-certified cleanroom facilities where preform-drawn glass fiber is first dual-coated with UV-cured acrylate to 250 µm, then precision-extruded with a thermoplastic tight buffer to achieve a consistent 900 µm diameter. Multi-fiber units are stranded around a central strength member using aramid yarn reinforcement before a flame-retardant LSZH or OFNR/OFNP outer jacket is applied. 100% attenuation testing, tensile load verification, and dimensional inspection are performed inline to ensure full ITU-T G.652D and G.657A2 compliance.

Tight Buffer Indoor Fiber Technical Specifications

Standard tight buffer indoor fiber is available in singlemode (OS2, 9/125 µm) and multimode (OM3/OM4/OM5, 50/125 µm; OM1, 62.5/125 µm) variants. Key parameters include: attenuation ≤0.35 dB/km at 1310 nm and ≤0.20 dB/km at 1550 nm (OS2); bandwidth ≥2000 MHz·km (OM3) and ≥4700 MHz·km (OM4) at 850 nm; tight buffer diameter 900 ±50 µm; minimum bend radius 25 mm (long-term); tensile strength up to 2700 N; operating temperature −20°C to +70°C; jacket options LSZH, OFNR (riser), or OFNP (plenum).

Tight Buffer Indoor Fiber supplier

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Partner with our factory-direct team for premium tight buffer indoor fiber cable at wholesale pricing. We support OEM customization, rapid global logistics, and full documentation packages tailored for telecom operators, system integrators, and data center contractors requiring certified, high-performance indoor fiber solutions.

Tight Buffer Indoor Fiber manufacturer

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Full ITU-T, ISO, RoHS compliance guarantee for all batches
Exclusive wholesale discounts for bulk telecom, FTTH and data center orders
Complete technical data sheets and on-site deployment guidance included

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Tight Buffer Indoor Fiber wholesale

Ratings & Reviews

4.5

Based on 8 reviews

5 5

4 2

3 1

2 0

1 0

Helen B.

United Kingdom

2025-02-01

Initial shipment had a jacket colour mismatch — resolved satisfactorily

Ordered 3,000 m of OM4 tight buffer LSZH cable specifying aqua jackets per ANSI/TIA-568 colour coding for our client's structured cabling standard. First shipment arrived with grey jackets due to a misread order form. This caused a one-week installation delay. To their credit, the supplier acknowledged the error immediately, air-freighted the correct aqua-jacketed OM4 cable within 5 days at no additional cost, and provided a written corrective action report. Optical specs on both batches were fully compliant. Communication after the issue was professional. Cautiously willing to reorder with clearer order confirmation steps.

Tariq A.

UAE

2025-02-23

Competitive pricing on OS2 LSZH — delivery met regional requirements

Ordered 20,000 m of OS2 9/125 µm tight buffer LSZH cable for a mixed-use tower project in Dubai. LSZH jacket compound passed our internal smoke density test per IEC 61034-2, important for UAE Civil Defence compliance. Attenuation at 1550 nm averaged 0.19 dB/km across sampled reels. Lead time of 14 working days to Jebel Ali port was acceptable for our schedule. Unit pricing at this volume was the most competitive of three quotes received. Documentation package for ETISALAT approval was provided promptly. Would consider for future phases.

Liam F.

Australia

2025-03-17

Good value OM3 product — minor labelling inconsistency noted

Purchased 5,000 m of OM3 50/125 µm tight buffer OFNR cable for a university building fitout in Melbourne. Optical performance was solid — bandwidth tested at 2,100 MHz·km, exceeding the OM3 2,000 MHz·km minimum. IEC 60794 compliance confirmed by our own lab. One minor point: reel footage markings on two reels were printed inconsistently, causing a brief stock reconciliation delay. Supplier responded quickly and clarified. Pricing was roughly 15% below Australian distributor rates for equivalent certified product. Overall a worthwhile supplier for bulk projects.

Know your supplier

Anxun optical fiber Co., Ltd.

7 yrs on Sinoali.com

Located in China

Company information More goods

FAQ

Q: What types of indoor fiber optic cables do you supply?

A:We supply indoor tight buffer fiber cables, multi-core distribution cables, breakout cables, simplex/duplex patch cables and FTTH indoor drop cables.

Q: What fire resistance standards do your indoor fiber cables meet?

Q: What fiber modes are available for indoor cables?

Q: Can your indoor fiber cables be used for vertical or horizontal cabling?

Q: Are indoor fiber cables bend-resistant?

Q: What is the difference between indoor and outdoor fiber cables?

Product display

Anxun Optical Fiber Co., Ltd. is a technology-driven enterprise specializing in the research, development, and manufacturing of high-quality optical fiber products and communication solutions. With a strong focus on innovation and precision engineering, the company provides a wide range of products, including fiber optic cables, connectivity components, and customized network solutions for telecommunications, data centers, and industrial applications.

Committed to international standards and strict quality control, Anxun ensures reliable performance and long-term durability in all its products. The company continuously invests in advanced production equipment and technical expertise to meet the evolving demands of global communication infrastructure. Guided by a customer-centric approach, Anxun Optical Fiber Co., Ltd. strives to deliver efficient, cost-effective, and sustainable solutions, building long-term partnerships with clients worldwide.