Technical data
Fibre type	OS2_9/125u
Connector type	standard
Product type	Patch cable
Number of fibres/ports	2 (Duplex)
Side A	LC/UPC (flat polish)
Side B	SC/UPC (flat polish)
Length in metres	5 m

This patch cable from EFB Elektronik, manufacturer's number O0360.5, is a pre-assembled LWL 2-fiber patch cable with a length of 5 meters. It is designed for connecting fiber optic components in networks and is specifically intended for use in singlemode systems. The cable features a fiber type OS2_9/125u, indicating a singlemode fiber with a core diameter of 9 µm and a cladding of 125 µm. This fiber type is suitable for long transmission distances and high bandwidths and is typically used in telecommunications and data networks. The connectors are different on both ends: side A has an LC/UPC connector, while side B has an SC/UPC connector, both with flat polish. The connectors are in the standard color for singlemode systems (blue), enabling easy identification. The LC series connectors are compact and allow for dense arrangement in patch panels and switches.

Applications
This patch cable is designed for use in professional network infrastructures, particularly in environments requiring high data rates over long distances. Typical applications include connecting network switches, routers, servers, fiber optic patch panels, or other fiber optic components in data centers, telecommunications installations, or industrial networks. The use of singlemode fibers (OS2) makes the cable especially suitable for distances from 500 meters to several kilometers, with the low attenuation of the fiber maintaining signal quality over long distances.

Functions and Equipment in Detail
The cable is equipped with a halogen-free and flame-retardant jacket that complies with standards IEC-60754-2, IEC-60332-1, and IEC-61034. This ensures safe use in enclosed spaces, as no toxic gases are released in case of fire. The connectors are certified to quality class Grade B/2 according to IEC-61753-1 for singlemode systems, guaranteeing high mechanical and optical performance. The connectors are precisely coded (precoding by Clipse), enabling a secure and unambiguous connection. Each cable has been 100 % tested and includes an individual test report documenting its optical properties.

Technology Explained Simply
The fiber type OS2_9/125u is a singlemode fiber optimized for light signal transmission over long distances. The small core of 9 µm enables very low signal distortion and attenuation, which is critical for high-performance networks. The UPC polishing (flat polish) of the connectors ensures optimal reflection characteristics, enhancing signal quality. The combination of an LC connector on one end and an SC connector on the other allows connection between different devices using different connector types. The 5-meter length is a standard size sufficient for many installation scenarios, eliminating the need for additional extensions.

Compatibility and Accessories
The cable is compatible with all devices supporting LC and SC connectors for singlemode fibers. It can be used with LWL patch panels, such as a 24-port LC duplex patch panel, or with other fiber optic components. Various accessories are available to facilitate installation and maintenance, such as fiber cutters, stripping tools, cleaning sticks for LC and SC connectors, and testing equipment like Fiber Checkers or fiber attenuation test kits. These accessories support professional handling and testing of the fiber link.

Installation and Mounting
Installation is performed by simply inserting the connectors into the corresponding sockets of the devices. The compact design of the LC connector allows for dense arrangement in patch panels. It is recommended to use cleaning tools before connecting to ensure optimal signal transmission. Cable routing typically occurs in cable ducts, shafts, or on cable ties, with mechanical stress and bend radii to be observed to avoid damaging the fiber.

Operational Advantages
The cable provides reliable and stable signal transmission over long distances. The high quality of the connectors and precise manufacturing ensure low optical losses and long service life. The halogen-free and flame-retardant insulation increases safety in enclosed spaces. Individual testing and documentation enable traceable quality assurance, which is important for professional users. The combination of LC and SC connectors expands application possibilities and simplifies integration into existing infrastructures.