Leviton Steel-Tape Armored Unitube Cables

Steel-tape armored unitube fiber cables, 2–24 fibers, corrugated steel-tape armor, gel-filled unitube, HFFR-LS and PE sheath options for direct-burial and campus backbone use.

Leviton Steel-Tape Armored Unitube cables offer 2–24 fibers in a compact unitube construction with corrugated steel-tape armor for superior crush, impact and rodent resistance. Designed for direct burial and campus backbone installations, they feature a single gel-filled loose tube to block water ingress, glass yarn strength members, UV-stable sheath options, and halogen-free flame-retardant low-smoke (HFFR-LS) sheath variants that meet CPR Euroclass Eca.

Product Specification

Country of origin: UK
Fiber counts: 2–24
Fiber types: Single-mode (G.652.D, G.657.A1, G.657.A2), OM1, OM3, OM4, OM5, hybrid options
Construction: Unitube loose-tube; single gel-filled loose tube
Armor: Corrugated steel-tape armor; glass yarn tensile members
Sheath options: HFFR-LS (LSZH) for CPR rated; polyethylene (PE) for external
Reaction to fire / CPR: HFFR-LS Euroclass Eca (CPR rated); IEC 60332-1-2 / EN 60332-1-2 single-cable flame pass
Mechanical limits: Max long-term load 300 N; max short-term load 1000 N; max crush 4000 N; max impact 20 Nm; max torsion ±5 turns; nominal tube Ø 4.0 mm; nominal cable Ø 10.4 mm
Bend radius: Min static 10× cable Ø; min dynamic 15× cable Ø
Packaging: Reels (examples) 2 km and 4 km; gross weight/reel and reel sizes vary by construction

Product Specification

Product Specification (Feature and Benefit)

Features

2–24 fiber unitube loose-tube construction with single gel-filled tube for water blocking.
Corrugated steel-tape armor with glass yarn strength members for crush, impact, and rodent protection.
Available fiber types: single-mode (G.652.D, G.657.A1, G.657.A2), OM1, OM3, OM4, OM5 and hybrid options.
UV-stable outer sheath options: HFFR-LS (LSZH) for CPR Euroclass Eca and PE for external use.
Optical performance meeting IEC/ITU recommendations for OS1/OS2 and OM-class fibers (attenuation and modal bandwidth as specified).
Mechanical ratings: max long-term load 300 N, max short-term load 1000 N, max crush 4000 N, max impact 20 Nm; min static bend radius 10× cable Ø; min dynamic bend radius 15× cable Ø.
Packaging on 2 km and 4 km reels with specified reel sizes and gross weights.

Benefits

Robust protection for direct-burial and harsh-campus-backbone installations, reducing risk from mechanical damage and rodents.
Gel-filled loose tube and qualified optical fibers ensure long-term signal integrity and low attenuation.
Multiple fiber type and count options support diverse network architectures and future scalability.
CPR-rated HFFR-LS sheath option delivers improved fire performance and regulatory compliance in-building.
Predictable mechanical and optical specifications simplify design, installation, and compliance verification.
Standardized reel packaging eases logistics, handling, and on-site deployment.

Product Specification Sheet

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