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Why the Outdoor G.652D Single Mode Fiber Optic Cable Matters for Long-Haul Links

For backbone, metro and access networks, the cable you choose decides how much of your optical budget survives the route. The Outdoor G.652D Single Mode Fiber Optic Cable is a loose-tube, gel-filled design built around ITU-T G.652D single mode fiber, the standard choice for long-distance transmission because it keeps attenuation low and stays compatible with common single mode transceivers. If you are planning a route where every decibel counts, this outdoor fiber optic cable is the part of the link you should size first.

The Buyer Pain: Attenuation and Moisture That Eat Your Link Budget

Long outdoor routes fail in two predictable ways. First, fiber attenuation that is higher than the datasheet suggests shortens the distance you can cover before regeneration, forcing extra splice points or active equipment. Second, water that works its way into the cable over years raises attenuation gradually and can eventually break continuity, which is expensive to find and fix after the cable is buried or strung. Both problems surface only after installation, when rework is costly.

How This Cable Answers That Pain

This G.652D single mode cable attacks both failure modes directly. The ITU-T G.652D fiber holds attenuation to ≤0.36 dB/km at 1310 nm and ≤0.22 dB/km at 1550 nm, so you can budget the route with predictable loss. Each fiber sits inside a gel-filled loose tube that isolates it from mechanical stress and blocks moisture from reaching the core. A central strength member (steel wire or FRP) plus aramid yarn reinforcement protect the core during pulling and service, and the black PE jacket resists UV, abrasion and water ingress. The result is a loose tube cable that keeps its optical performance within the rated limits across direct burial, duct and aerial deployment when installed to the recommended practice.

Specifications at a Glance

Parameter	Value
Fiber Type	ITU-T G.652D single mode
Fiber Count	2-288 cores
Attenuation (1310 nm)	≤ 0.36 dB/km
Attenuation (1550 nm)	≤ 0.22 dB/km
Cable Structure	Loose tube, gel-filled
Strength Member	Steel wire / FRP
Outer Jacket	Black PE
Application	Backbone, metro, access networks

Choosing the Right Configuration

Fiber count is the first decision. The cable supports 2-288 cores, so a small access drop and a large backbone bundle can both be served from the same product family. For direct burial, confirm the sheath and strength options with our team so the cable matches the mechanical load of your route; for duct and aerial runs, the same loose-tube structure applies but the pulling and support requirements differ. Tell us the deployment method and core count when you request a quote, and we will confirm the matching configuration.

Installation and Handling Notes

Because this is a loose tube cable, the gel-filled tubes keep the fibers isolated from the pulling tension you apply during installation. Keep the cable within its rated bend radius while pulling and avoid kinking the black PE jacket, which protects the core from UV, abrasion and water ingress in outdoor service. For direct burial, use the recommended trench depth and backfill; for aerial runs, respect the sag and tension limits of the route. Confirm the specific mechanical limits for your chosen core count and sheath with our team before installation.

Quality Control and OEM/ODM Support

Every reel is factory-tested for attenuation and continuity before dispatch, and quality control runs through the whole process at our 30+ QC stations. Nexora supports custom lengths, printing and packaging for OEM and ODM orders, backed by 500+ completed OEM/ODM projects and 12 production lines. If you need a specific core count, drum length or printed marking, include it in your inquiry.

Buyer FAQ

Is this cable suitable for direct burial, duct and aerial deployment?

The loose-tube, gel-filled structure with a black PE jacket is designed for outdoor use across direct burial, duct and aerial runs. Confirm the sheath and strength options for your specific route with our team so the configuration matches the mechanical load.

What attenuation can I expect?

Attenuation is ≤0.36 dB/km at 1310 nm and ≤0.22 dB/km at 1550 nm for the G.652D fiber. Use these values to budget your optical loss across the route.

Can I order a custom fiber count or drum length?

Yes. The cable supports 2-288 cores, and we offer custom lengths, printing and packaging for OEM and ODM orders. Share your core count and drum length in your inquiry.

How is quality verified before shipment?

Every reel is factory-tested for attenuation and continuity before dispatch, and quality control runs through the whole process at our 30+ QC stations.

Request Outdoor Cable Details

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