OS2 Singlemode Bulk Fiber Cable 12-Strand OFNP Plenum by Black Box
The Black Box OS2 singlemode bulk fiber cable delivers reliable, high-performance connectivity for demanding network infrastructure projects. This 12-strand tight-buffer cable features a plenum-rated OFNP jacket, making it ideal for backbone runs, campus networks, and inter-building connections where fire safety and durability are critical. With 9/125 µm fiber construction and indoor/outdoor rated design, this bulk fiber solution provides the flexibility and performance your network backbone requires.
Whether you're upgrading campus infrastructure, establishing backbone connectivity between buildings, or deploying high-speed distribution networks, this singlemode bulk fiber cable combines robust construction with plenum compliance for secure, future-proof installations.
Key Features
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OS2 Singlemode Fiber — 9/125 µm specification for long-distance, high-bandwidth backbone applications
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12-Strand Configuration — Multiple fiber pairs for flexible network topology and redundancy options
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Tight-Buffer Construction — Enhanced durability and simplified termination for field installations
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OFNP Plenum-Rated Jacket — Meets fire safety codes for installation in plenum spaces and air handling areas
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Indoor/Outdoor Rated — Black outer jacket rated for both internal campus runs and external building-to-building connections
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High-Performance Distribution — Engineered for backbone and campus network infrastructure requiring reliable, long-term connectivity
Technical Specifications
| Specification |
Details |
| Manufacturer |
Black Box |
| Part Number |
FOBC55-IOSM-BK-12F-1000 |
| Fiber Type |
OS2 Singlemode |
| Fiber Count |
12-Strand |
| Core/Cladding Diameter |
9/125 µm |
| Cable Construction |
Tight-Buffer |
| Jacket Rating |
OFNP Plenum |
| Jacket Color |
Black |
| Application |
Indoor/Outdoor, Backbone, Campus Distribution |
| Standard Length |
1000 feet |
Frequently Asked Questions
What is the difference between OS2 singlemode and multimode fiber?
OS2 singlemode fiber supports longer transmission distances (up to 100+ km) with higher bandwidth capacity compared to multimode fiber. The 9/125 µm core size allows only one light path, making it ideal for backbone and long-distance campus network runs where performance and distance are priorities.
Why choose tight-buffer construction for bulk fiber cable?
Tight-buffer construction provides superior protection for individual fiber strands, making the cable more durable during installation and easier to terminate in the field. This design is preferred for backbone applications where reliability and ease of deployment are essential.
Is this plenum-rated bulk fiber cable suitable for indoor/outdoor installation?
Yes. The OFNP plenum-rated jacket meets fire safety codes for indoor plenum spaces, while the black outer jacket is also rated for outdoor use, making this bulk fiber cable versatile for both inter-building connections and internal campus network infrastructure.
How many fiber pairs does the 12-strand configuration provide?
The 12-strand singlemode bulk fiber cable provides six fiber pairs, offering flexibility for redundant backbone connections, multi-path routing, or future network expansion within your campus or building infrastructure.
