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0.9 mm Fiber Optic G.657A2 (Spool)
Single-mode optical fiber of G.657A2 standard in 0.9 mm tight buffer coating is designed for measurement, testing, installation, splicing, and optical signal transmission in telecommunication networks. The fiber is выполнено in a tight buffer structure that provides additional mechanical protection and convenience during work in field and stationary conditions. The buffer material is LSZH (Low Smoke Zero Halogen), characterized by low smoke emission and absence of halogens, increasing safety when used in enclosed помещения and technical zones.
The cable has high flexibility, is resistant to mechanical loads, and complies with the international ITU-T G.657A2 standard. Reduced macrobending losses allow operation at small bend radii without critical degradation of signal transmission parameters. Delivery is performed on a spool with cable retainer, convenient for transportation, repeated use, and deployment of temporary or permanent communication lines.
We — are a team
In practical application, not only optical parameters are critical, but also real mechanical endurance during transportation, rewinding, deployment in field conditions, and operation in confined spaces. The spool format and tight buffer allow rapid commissioning of the line, minimizing the risk of fiber damage during installation.
Specifications
| Parameter | Value |
|---|---|
| Fiber type | Single-mode G.657A2 |
| Fiber count | 1 |
| Mode field diameter | 8.6 ± 0.4 µm at 1310 nm; 9.6 ± 0.5 µm at 1550 nm |
| Cladding diameter | 125 ± 0.7 µm |
| Coating diameter | 245 ± 5 µm |
| Cladding non-circularity | ≤ 1.0 % |
| Core concentricity error | ≤ 0.5 µm |
| Coating/cladding concentricity error | ≤ 12 µm |
| Cut-off wavelength | ≤ 1260 nm |
| Fiber attenuation coefficient | ≤ 0.35 dB/km (1310 nm); ≤ 0.21 dB/km (1550 nm) |
| Macrobending loss | ≤ 0.5 dB (1550 nm); ≤ 1.0 dB (1625 nm) |
| Proof test level | ≥ 100 kpsi |
| Buffer diameter | 0.9 ± 0.05 mm |
| Buffer type | Tight Buffer |
| Buffer material | LSZH |
| Buffer color | black |
| Cable attenuation | ≤ 0.4 dB/km (1310 nm); ≤ 0.3 dB/km (1550 nm) |
| Cable weight | approximately 0.9 kg/km |
| Maximum tensile force | 5 N |
| Crush resistance | 100 N / 100 mm |
| Length on spool | 500 m / 1000 m / 2000 m (typical) |
Comment / comments
The 0.9 mm Tight Buffer format provides convenience for connection, installation, and repeated use in mobile communication kits. The G.657A2 standard allows operation with small bend radii, which is especially important when routing inside equipment, shelters, field communication nodes, and temporary infrastructures.
Who it is suitable for
Installers — splicing, installation, routing, and testing of fiber lines.
Telecom engineers — measurements, laboratory work, service tasks.