The D-connect Unitube Unarmoured Fiber Optic Cable is a compact loose-tube backbone cable designed for indoor and protected outdoor installations. Supporting 2 to 24 fiber cores and multiple fiber types including OS2 and OM-series multimode, it offers moisture resistance, water-blocking protection, and easy installation for reliable telecom and data network performance.
The D-connect Unitube Unarmoured Fiber Optic Cable is a high-performance and space-efficient solution for fiber backbone and distribution networks in indoor and protected outdoor environments. With support for 2 to 24 fiber cores, this unarmoured loose-tube cable is ideal for small to medium-capacity network infrastructures requiring stable transmission and long service life.
Compatible with OS2 single-mode and OM1, OM2, OM3, OM4, and OM5 multimode fibers, the cable is designed to meet the connectivity demands of telecom networks, enterprise campuses, and data centers. Its gel-filled loose tube structure provides excellent moisture resistance, ensuring optical fibers remain protected from environmental stress.
For additional protection, water-blocking glass yarns help prevent water ingress, making the cable suitable for duct and conduit installations. The lightweight and compact design allows easy handling and faster installation, while its thermal stability ensures consistent performance across wide temperature ranges.
Available in various jacket materials and color options, the D-connect Unitube Unarmoured Fiber Optic Cable delivers flexibility, durability, and cost-effective deployment for modern backbone fiber networks.
The Dconnect Unitube Unarmoured Fiber Optic Cable is manufactured in accordance with the highest international quality and performance standards to ensure reliability, safety, and interoperability across a wide range of applications.
ITU-T Standards:
G.652D, G.657A1/A2 (Single-mode)
G.651.1 (Multimode: OM1, OM2, OM3, OM4, OM5)
IEC Standards:
IEC 60794-1: Optical Fiber Cable General Specifications
IEC 60794-2: Indoor Cable Specifications
IEC 60794-3: Outdoor Cable Specifications
IEC 60794-5: Microduct and Outdoor Drop Cables
IEC 60332-1 & IEC 60332-3: Flame Retardancy (if LSZH jacket is selected)
ISO/IEC Compliance:
ISO/IEC 11801: Structured Cabling for Generic Networks
ISO 9001: Quality Management System
Environmental and Safety Compliance:
RoHS (Restriction of Hazardous Substances) Compliant
REACH Compliant
UV Resistant (for outdoor-rated jacket)
Halogen-Free (if LSZH jacket is used)
| Parameter | Specification |
| Number of Fibers per Tube | Number of Fibers per Tube: Up to 24 fibers (Color coded) |
| Fiber Color Coding | Bl (Blue), Or (Orange), Gr (Green), Br (Brown), Sl (Slate), Wh (White), Rd (Red), Bk (Black), Yi (Yellow), Vi (Violet), Pi (Pink), Nt (Natural) |
| Number of Loose Tubes | 1 to 6 |
| Loose Tube ID/OD | 1.7 / 2.5 ± 0.1 mm |
| Outer Sheath Thickness | 2.0 ± 0.1 mm |
| Loose Tube Material | PBT (Polybutylene Terephthalate) |
| Peripheral Strength Member | Glass Yarn |
| Outer Sheath Thickness | 1.8 mm (minimum) |
| Sheath Material | LSOH – Black (Low Smoke Zero Halogen) |
| Number of Ripcords | 1 |
| Ripcord Material | Polyester |
| Overall Cable Diameter | 7.2 ± 0.5 mm |
| Cable Weight | 85.0 ± 5 kg/km |
| Tensile Strength | 500 N |
| Crush Resistance | 1000 N |
| Impact Strength | 5 N.m |
| Torsion | ± 180° |
| Minimum Bend Radius | 20 x D |
| Type | Attenuation | Bend Resistance |
| G.652D | ≤ 0.35 dB/km @ 1310 nm | Moderate |
| ≤ 0.22 dB/km @ 1550 nm | ||
| G.657A1 | Similar to G.652D | Low bend loss @ 10 mm radius |
| G.657A2 | Similar to G.652D | Ultra-low bend loss @ 7.5 mm radius |
| OS1 | ≤ 1.0 dB/km @ 1310 nm | Moderate |
| ≤ 0.7 dB/km @ 1550 nm | ||
| OS2 | ≤ 0.4 dB/km @ 1310 nm | Low |
| ≤ 0.3 dB/km @ 1550 nm | ||
| OM3 | ≤ 2.3 dB/km @ 850 nm | Standard |
| ≤ 0.6 dB/km @ 1300 nm | ||
| OM4 | ≤ 2.3 dB/km @ 850 nm | Standard |
| ≤ 0.6 dB/km @ 1300 nm | ||
| OM5 | ≤ 2.3 dB/km @ 850/953/1300 nm | Standard |
