G.657A2 Single-Mode Optical Cable - Bend Resistant Supplier
Supplier's customization ability
- Drawing-based customization
- Sample-based customization
- Full customization
Minimum order quantity: 1 km
Shipping total: To be negotiated
- Lead time:
- confirmed with the quotation
- Packaging:
- standard export packing
- Samples:
- available on request
Product details
Technical Specifications of G.657A2 9/125μm Single-Mode Optical Cable
| Property | Parameter | Description |
|---|---|---|
| Product Name | G.657A2 9/125μm Single-Mode Optical Cable | Bend-insensitive single-mode fiber optic cable with high bending resistance performance |
| Fiber Type | Single-Mode, G.657A2 | Compatible with G.652D; core/cladding diameter 9/125μm; optimized for FTTH/FTTX deployments |
| Standard Compliance | ITU-T G.657A2, IEC 60793-2-50 | Meets ITU-T G.657 Category A2 bend-insensitive fiber standard; backward compatible with G.652D |
| Attenuation | ≤0.35 dB/km @ 1310nm; ≤0.20 dB/km @ 1550nm | Low attenuation ensures long-distance signal transmission with minimal loss |
| Chromatic Dispersion | ≤18 ps/(nm·km) @ 1550nm | Compliant with ITU-T G.657A2 dispersion specification for single-mode transmission |
| Bending Radius (Macro) | R=7.5mm, 10 turns, ≤0.1 dB @ 1550nm | Superior macro-bend performance; suitable for tight routing in indoor and FTTH installations |
| Cutoff Wavelength | ≤1260nm (cable cutoff) | Ensures single-mode operation across full operating wavelength range 1260–1625nm |
| Mode Field Diameter | 8.6–9.5μm @ 1310nm | Optimized MFD for low splice loss and compatibility with standard G.652D fiber |
| Numerical Aperture | 0.14 ± 0.02 | Standard NA ensuring efficient light coupling and low connection loss |
| Operating Temperature | -40°C to +70°C (installation); -60°C to +85°C (storage) | Wide temperature range suitable for indoor, outdoor, and harsh environment applications |
| Cable Construction | Tight-buffered / Loose-tube / LSZH jacketed options | Available in simplex, duplex, ribbon, and multi-fiber configurations per project requirement |
| Outer Diameter | 2.0mm / 3.0mm (standard); custom sizes available | Compact design for space-saving installation in conduits, trays, and micro-ducts |
| Tensile Strength | ≥100N (short-term); ≥60N (long-term) | Per IEC 60794-1-2 Method E1; ensures mechanical integrity during installation and service |
| Application | FTTH, FTTX, indoor wiring, data centers, access networks | Ideal for last-mile connectivity, building riser/horizontal cabling, and tight-space routing |
| Certification | RoHS, REACH, UL, CE, ISO 9001 | Internationally certified for safety, environmental compliance, and quality management |
| Packaging | Wooden drum / plastic reel; 1km, 2km, 4km per reel standard | Custom reel lengths available; labeled with fiber count, length, and batch traceability |
| MOQ | 1 km | Flexible order quantities supported; volume pricing available for OEM and project orders |
G.657A2 Single-Mode Optical Cable - Bend Resistant Supplier
The G.657A2 single-mode optical cable represents a breakthrough solution for modern fiber-to-the-home (FTTH) and indoor network deployments where tight routing conditions demand exceptional performance. Engineered to the ITU-T G.657A2 standard, this 9/125μm single-mode optical cable delivers a minimum bend radius of just 7.5 mm, enabling installers to route fibers around sharp corners, through conduits, and along building structures without inducing signal degradation. Compared to conventional G.652D cables, the G.657A2 design achieves significantly reduced macro-bending loss — typically less than 0.1 dB per turn at a 7.5 mm radius for 1550 nm wavelength — making it the preferred choice for dense urban installations, multi-dwelling units (MDUs), and last-mile connectivity projects. As a professional G.657A2 single-mode optical cable supplier, we provide mill-direct rates, rigorous quality control, and full traceability documentation to support procurement teams across telecommunications, data center, and enterprise network sectors worldwide.

What is G.657A2 9/125μm Single-Mode Optical Cable?
The G.657A2 9/125μm single-mode optical cable is a bend-insensitive fiber optic cable standardized by the ITU-T G.657 Category A2 specification. It features a 9 μm core diameter and 125 μm cladding, maintaining full backward compatibility with G.652D infrastructure. Its advanced trench-assisted or nanostructured fiber design suppresses bending-induced attenuation, achieving a maximum attenuation of 0.4 dB/km at 1310 nm and 0.3 dB/km at 1550 nm under standard operating conditions.
G.657A2 Single-Mode Optical Cable Technical Specifications
Our G.657A2 bend resistant single-mode optical cable meets rigorous international performance benchmarks critical for high-density and confined-space deployments:
| Parameter | Specification |
|---|---|
| ITU-T Standard | G.657A2 |
| Core / Cladding Diameter | 9 / 125 μm |
| Coating Diameter | 245 ± 10 μm |
| Attenuation @ 1310 nm | ≤ 0.40 dB/km |
| Attenuation @ 1550 nm | ≤ 0.30 dB/km |
| Minimum Bend Radius (Installation) | 7.5 mm (10 turns, ≤ 0.1 dB @ 1550 nm) |
| Minimum Bend Radius (Long-Term) | 15 mm |
| Mode Field Diameter @ 1310 nm | 8.6 – 9.2 μm |
| Cable Cut-off Wavelength | ≤ 1260 nm |
| Operating Temperature | -40°C to +70°C |
| Proof Test Level | ≥ 0.69 GPa (100 kpsi) |
| Compatibility | Fully backward compatible with G.652D |
This G.657A2 single-mode optical cable finds extensive application in FTTH drop cable assemblies, indoor riser and plenum installations, patch cord manufacturing, and high-density data center interconnects where cable routing imposes unavoidable bending stress. Its superior macro-bending performance ensures consistent signal integrity across wavelengths from 1260 nm to 1625 nm, supporting current and next-generation passive optical network (PON) architectures including GPON, XGS-PON, and NG-PON2.
Get a Competitive Quote for G.657A2 Single-Mode Optical Cable
Partner with a trusted G.657A2 bend resistant optical cable supplier offering mill-direct pricing, certified product documentation, and responsive logistics support. Whether you require small evaluation quantities or large-volume project orders, our team delivers tailored solutions within your timeline and budget requirements.

- 24/7 customer support available
- Free samples for quality evaluation
- Competitive pricing for bulk orders
- Professional technical consultation
Contact us today to get your free quote within 24 hours!
