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Why choose a tight-buffered indoor fiber optic cable?

When you run fiber inside a building, the cable has to protect the fibers and stay easy to terminate at patch panels, wall outlets and distribution frames. A loose-tube design handles long outdoor spans well, but inside a riser or plenum it adds stripping and splicing work that slows down every connection. This indoor fiber optic cable, built with a tight-buffered structure, is made for that short-haul distribution job, where termination speed and fire-code fit matter more than long-distance reach.

The buyer problem: slow termination and fire-code risk

Two issues come up again and again on indoor fiber projects. First, a cable that is hard to strip and terminate turns every patch panel and wall outlet into a time sink, which pushes up labor cost and project schedule. Second, the jacket has to match the building's fire code. A riser run between floors and a plenum air-handling space are not the same environment, and using the wrong jacket rating can fail inspection or create a compliance problem after the cable is already pulled.

How this indoor tight-buffered cable solves it

Each fiber is protected by a 900 µm tight buffer coating. Because the buffer sits directly on the fiber, you can strip it and terminate without the extra steps that loose-tube designs require, which reduces the time spent at every patch panel, wall outlet and distribution frame. The flame-retardant jacket is offered in riser and plenum rated versions, so you can match the cable to the specific building zone instead of over- or under-specifying one jacket for the whole project.

Structure and materials

Fiber type: single mode or multimode, so the same cable family covers different link budgets.
Fiber count: 2 to 144 cores, letting you size the cable to the port plan.
Buffer: tight buffer, 900 µm, for direct stripping and termination.
Jacket: LSZH or PVC, in riser or plenum rated versions.
Bend radius: 10 × cable diameter (static), which supports routing in cable trays and conduits.

What to check when you compare

When you evaluate an indoor tight-buffered cable, confirm the fiber count matches your port plan, and confirm the jacket rating matches the building zone where the cable will run. For a riser application, confirm the riser-rated jacket; for an air-handling plenum space, confirm the plenum-rated version. If your project needs a specific length or printed marking, Nexora supports custom lengths and printing for OEM and ODM projects.

Installation and handling

The static bend radius of 10 × cable diameter means you should avoid bending the cable tighter than this during routing. Keep the cable clear of sharp edges in cable trays and conduits, and leave enough slack at each termination point so the tight-buffered fibers can be stripped and terminated without strain. For plenum-rated runs, confirm the jacket rating matches the air-handling space before pulling.

Quality and manufacturing

This cable is produced in a Shenzhen facility with 12 production lines and more than 30 QC stations covering incoming material, component, in-process, functional, visual, final and packaging inspection. Nexora has delivered more than 500 OEM/ODM projects across 50+ countries, and supports standard products, bulk supply and custom manufacturing.

Frequently asked questions

What fiber count should I order?

Choose the count that matches your port plan plus a margin for future growth. This indoor fiber optic cable is available from 2 to 144 cores.

What is the difference between riser and plenum jackets?

Riser and plenum are building-zone ratings. A riser-rated jacket suits vertical runs between floors, while a plenum-rated jacket is intended for air-handling spaces. Confirm the rating required by your local building code before ordering.

Can I get a custom length or printed marking?

Yes. Nexora supports custom lengths and printing for OEM and ODM projects. Share your required length and marking with our team when you request a quote.

Is this cable suitable for data centers?

Yes. The compact, flexible construction and easy termination make it suitable for indoor distribution, patch panels and data center runs. For data center use, confirm the jacket rating required by your facility's fire code before ordering.

What warranty and support do you offer?

Warranty and after-sales terms are confirmed per order and listed on the quotation. Contact our team with your project details to confirm the applicable terms for your order.

Request product details

Tell us your fiber count, jacket rating (riser or plenum), required length and any printed marking, and our team will confirm availability and lead time for your project.

Request a quote

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