Outdoor Optical Fiber Cable electro base Unitube MD-UT-8F-4148 — 8 single-mode fibers, diameter 5.3 mm

Outdoor Optical Fiber Cable electro base Unitube MD-UT-8F-4148 is a compact outdoor single-unit cable that contains 8 single-mode fibers in a unitube configuration with an overall diameter of 5.3 mm. Designed for external installations, the cable is intended for long-distance data transmission, fiber-to-the-home (FTTH) deployments and backbone links where a small-diameter, weather-resistant fiber cable is required. The unitube construction provides ease of handling and reliable fiber protection while the single-mode fibers support high-bandwidth, low-loss optical transmission over extended distances.

Advantages

The unitube design offers a balance of flexibility and mechanical protection in a small overall diameter, making the cable easier to route in ducts and crowded conduits. Its outdoor-rated sheath provides resistance to moisture and environmental exposure, and the single-mode fiber format enables long-reach connections with low attenuation and consistent signal quality. Because the cable is compact and lightweight, it reduces installation effort and space requirements in tight conduits or direct-burial installations.

Suitable for

• Fiber-to-the-home (FTTH) drop and distribution routes
• Outdoor backbone and feeder links between cabinets or buildings
• Installation in ducts, conduits and micro-duct systems
• Direct-burial segments with shallow trenches where a small diameter is advantageous
• Long-distance single-mode transmission requiring low attenuation

Key specifications

• Fiber count: 8 single-mode fibers
• Cable design: unitube
• Overall diameter: 5.3 mm
• Fiber type: single-mode (SM), suitable for long-distance optical transmission
• Environmental rating: outdoor-rated sheath for moisture and weather resistance
• Installation methods: suitable for duct installation and direct burial

How to use

Prepare the installation route by ensuring ducts or trenches are clear and meet local civil requirements. Pull the cable carefully through ducts or lay it in the prepared trench, observing recommended bending radii to avoid microbending loss; do not exceed the cable's minimum bend radius. For direct-burial segments, protect the cable with appropriate backfill and warning tape where required by local practice. At termination points, strip the outer sheath and access the unitube according to standard fiber handling procedures, then cleave and splice or terminate the single-mode fibers using suitable fusion splicing or connectorization tools. Follow all safety guidelines for fiber handling, including eye protection and proper disposal of fiber scraps.

Usage recommendations

The cable is optimized for outdoor routes where a compact diameter and single-mode performance are needed. To maintain long-term performance, avoid tight bends, protect against prolonged mechanical abrasion, and use appropriate splice enclosures and weatherproof terminations at exposed connection points.