Prysmian Singlemode OS2 G657a1 Loose Tube Fibre Cable CST Armour LSZH, Eca, Ext

The Prysmian Singlemode OS2 G657.A1 Loose Tube Fibre Cable CST Armour, LSZH, Eca, External delivers reliable, long-distance data transmission across campus, enterprise, telecommunications, and outdoor network installations. It features OS2 G657.A1 singlemode fibres that support high-speed Ethernet, fibre channel, and broadband applications over long distances. Its enhanced bend performance makes it ideal for backbone networks, data centres, FTTx deployments, and external fibre optic infrastructure where installation flexibility and long-term reliability are essential.
Its loose tube construction protects against moisture, temperature fluctuations, and mechanical stresses, while the CST armour provides excellent resistance to crush, impact, and rodent damage. This makes the cable suitable for demanding outdoor environments and direct burial applications. The LSZH outer sheath improves fire safety by reducing the release of smoke and corrosive gases during a fire, while the Eca Euroclass fire rating ensures compliance with the CPR.
It is designed for external use and delivers robust, long-term performance in ducts, direct burial installations, trays, and other outdoor environments where additional mechanical protection is required. Its durable construction maintains reliable optical performance under a variety of conditions while remaining straightforward to install, and it combines low attenuation, dependable signal integrity, enhanced bend resistance, and outstanding mechanical resilience to make it an ideal choice for scalable outdoor fibre networks.