Fiber optic cable, OS2 FTTH, SM 4J, Alantec FireHardy, B2ca flame retardant FOK-U4J-SM-B

Alantec FireHardy fiber optic cable is a solution designed for modern FTTH networks, public utility buildings, and industrial FTTx installations. Its universal construction allows for free routing both indoors and outdoors, eliminating the need for additional connecting elements and splices. This saves time and costs during installation.

The key element of the cable is G.657.A2 single-mode fibers, characterized by a small bending radius. This means the cable is exceptionally flexible and easy to route even in tight spaces, while remaining fully compatible with older G.652.D standards. The use of these types of fibers makes the cable perfect for local area networks (Fiber To The Home, Fiber To The Desk) and in more extensive systems.

To ensure durability and reliability, the fibers are protected against moisture with a water-absorbing swelling material – an alternative to traditional gel, which can be problematic during installation. Additional protection against rodents provided by glass fibers increases the cable's resistance to mechanical damage.

Safety is a priority – the cable has a flame-retardant coating of class B2ca, meeting strict European standards (CPR 305/2011). This means that in the event of a fire, it does not spread flames, emits minimal smoke, and does not release harmful corrosive gases. Therefore, the FireHardy cable is an ideal choice for facilities with increased safety requirements, such as hospitals, public buildings, and offices.

The cable is available in yellow, which makes it easier to identify during installation and subsequent network maintenance. Available for sale by the meter, it allows for precise adjustment of the length to the needs of a specific project – without unnecessary waste of material.

Construction and parameters:

The cable is characterized by an outer diameter of 5.5 mm and a tensile strength of up to 1000 N (static) and 2000 N (dynamic). A durable sheath made of glass fibers protects the delicate optical fibers from mechanical damage. The LSOH (Low Smoke Zero Halogen) coating ensures safety in the event of a fire and resistance to weathering. The fibers are color-coded (red, green, yellow, blue) to facilitate their identification during splicing and testing connections. Light attenuation parameters for different wavelengths (1310 nm - ≤ 0.33 dB/km; 1550nm - ≤ 0.19 dB/km) guarantee high-quality data transmission over long distances.

Thanks to the combination of advanced technology, high-quality materials, and attention to detail, the Alantec FireHardy fiber optic cable is an investment in a reliable and safe telecommunications infrastructure for years to come. The product is covered by a 25-year system warranty when using appropriate A-LAN Technologie components and installation by a certified installer with current LAN network calibrator.