General
Plug connection	SC/SC

The lead-in and trailing fibre from Softing IT Networks, type FX_AC_HQ_SM_SC,400992, is a singlemode fibre cable with a length of 300 metres, specifically designed for use in demanding environments. The fibre features a special metal sheathing, making it extremely durable and robust – a construction referred to as Heavy Duty Line. It is equipped with SC/SC connectors at both ends, enabling a secure and standardised connection in network infrastructures. This fibre serves as accessory for network testers, particularly in connection with the FiberXpert system, and is used for calibration or as a reference cable in optical measurements.

Applications
The fibre is intended for use in industrial and professional environments where high mechanical stresses, such as tension, pressure, or bending, occur. The metal sheathing protects the sensitive glass fibre from external influences and extends the cable's service life. Due to its length of 300 metres, it is particularly suitable for testing over long distances, for example in large buildings, factories, or during commissioning of fibre cable networks. The singlemode technology ensures high bandwidth and low attenuation, which is crucial for precise measurements in high-performance networks.

Functions and Equipment in Detail
The fibre is designed as a singlemode cable, meaning it transmits only one light mode. This results in low signal distortion and high transmission quality over long distances. The SC connectors at both ends are standardised and allow for easy, tool-free connection. The special metal sheathing provides additional protection against mechanical damage, making the fibre particularly suitable for use in harsh environments. The designation Heavy Duty Line highlights the high load capacity and longevity of the construction.

Technology Explained Simply
Singlemode fibres are optimised for transmitting light signals over long distances. Unlike multimode fibres, which transmit multiple light modes simultaneously, singlemode fibres use only one mode, which improves signal quality and minimises attenuation. SC connectors are a common connector type in fibre optics, providing a secure and precise connection. The metal sheathing protects the fibre against mechanical stresses such as tension, pressure, or bending forces, which is especially important during frequent transportation or in industrial applications.

Compatibility and Accessories
The fibre is designed as an accessory for the FiberXpert system from Softing IT Networks and is specifically used with network testers. It serves as a reference or lead-in fibre in optical measurements to ensure the accuracy of measurement results. Compatibility with the FiberXpert system is provided by the specific construction and the connectors used.

Installation and Mounting
Installation of the fibre does not require special tools, as the SC connectors can be locked without tools. Due to its length of 300 metres, the fibre is suitable for use in larger installations. The metal sheathing facilitates transportation and handling, as it protects the fibre from mechanical damage.

Operational Advantages
The fibre offers high mechanical stability due to the metal sheathing, which increases service life and reduces maintenance. The singlemode technology ensures high signal quality and low attenuation, which is essential for precise measurements. The length of 300 metres allows testing over long distances without requiring additional extensions. The SC connectors provide a standardised and reliable connection that is quick and easy to handle.