Description
This Excel OS2 9/125µm loose tube fibre optic cable is a corrugated steel tape (CST) armoured external-grade cable designed for installations where mechanical protection and rodent resistance are required.
It is typically used for direct burial, duct installations, and external network runs where standard fibre cables would be at risk from crushing, impact, or vermin damage. The CST armour provides an additional physical barrier without significantly increasing cable diameter or weight.
The cable construction features a central dry PBT loose tube containing up to 24 colour-coded 250µm fibres, compliant with TIA-598-C identification standards. E-glass yarn strength members provide tensile support, while the ECCS steel tape armour enhances crush resistance and durability. A blue LSZH outer sheath allows use in environments where low smoke and zero halogen materials are specified.
This cable is compatible with standard singlemode fibre systems and suitable for splicing and termination using industry-standard components. Ideal for backbone links, campus networks, and external fibre runs where added protection is required.
Specification
| Rodent resistant | Yes |
| Outer sheath material | Copolymer, thermoplastic (LSZH) |
| Outer sheath colour | Blue |
| Flame retardant according to IEC 60332-1-2 | Yes |
| Reaction-to-fire class according to EN 13501-6 | Cca |
| Smoke development class according to EN 13501-6 | s1a |
| Euro class flaming droplets/particles according to EN 13501-6 |
d0 |
| Euro class acidity according to EN 13501-6 | a1 |
| Outer diameter approx. | 9mm |
| Colour coding | As per TIA-598-C |
| Tensile strength | 2000 N |
| Crush resistance | 3000 N/m |
| Torsion | ± 180 ° |
| Temperature performance | Installation -30⁰C to +70⁰C Operation -30⁰C to +70⁰C Storage -30⁰C to +70⁰C |
| Loose tubes | Number 1 Material PBT (Dry tube) |
| Loose Tube ID/OD | 4-16 Cores 2.4/3.2 ± 0.3 mm 24 Cores 3.2/4.0 ± 0.3 mm |
| Peripheral strength member | Glass Yarn |
| Armouring | Thickness 0.150 mm Material ECCS Tape |
| Outer sheath | Thickness 1.8 mm (Nominal) Material LSZH |
| Ripcord | Number 1 Material Polyester |
| Overall Cable Diameter | 4-16 Cores 9.0 ± 0.5 mm 24 Cores 9.5 ± 0.5 mm |
| Cable weight | 4-16 Cores 100.0 ± 10 kg/km 24 Cores 115 ± 10 kg/km |
| Bending radius | Short term 20 x Diameter Long term 10 x Diameter |
| Attenuation | @1310 nm ≤ 0.36 dB/km @1550 nm ≤ 0.23 dB/km |
| Chromatic dispersion | 1285 - 1330 nm ≤ 3.5 ps/nm.km 1550 nm ≤ 18 ps/nm.km |
| Zero dispersion wavelength | 1300 - 1324 nm |
| Zero dispersion slope | ≤ 0.092 ps/nm2.km |
| Polarisation mode dispersion | ≤ 0.2 ps/√km |
| Cut off wavelength | ≤ 1260 nm |
| Mode Field Diameter | @1310 nm 9.2 ± 0.4 μm |
| Core Cladding Concentricity Error | ≤ 0.8 μm |
| Cladding Diameter | 125 ± 1 μm |
| Cladding Non-circularity | ≤ 1 % |
| Coating Diameter (Uncoloured) | 245 ± 10 μm |
Downloads
| Datasheet | Download |
| Declaration of Performance | Download |
| Certificate of Conformity | Download |
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