General
Single measurement cable	4

The Softing IT Networks Singlemode test cable kit 228206 is a professional test cable set for testing and analysing singlemode fibre networks. It serves as reference quality for precise optical measurements in the field of network infrastructure and is particularly used in the installation, maintenance and diagnosis of fibre optic connections. The kit is designed for use with duplex systems and provides a standardised, reproducible measurement basis to reliably assess the performance of fibre cables and connections.

Applications
This test cable kit is intended for use in industrial and telecommunication fibre optics, particularly in environments where high measurement accuracy and repeatability are required. It is frequently used in the installation of fibre optic networks, for quality control of fibre cables, or for troubleshooting in existing fibre systems. The use of APC connectors (Angled Physical Contact) ensures minimal back reflections, which is particularly advantageous in high-performance applications such as FTTH (Fiber to the Home) or in data processing.

Functions and equipment in detail
The kit includes a total of six test cables: two duplex test cables with LC/APC connectors at both ends, each 2 metres long, and four single test cables with SC connector at one end and LC/APC connector at the other end. This combination allows flexible adaptation to various measurement tasks, such as connecting SC sockets with LC connectors. The test cables are designed for singlemode fibre, making them suitable for high-speed and long-distance transmissions. The use of APC connectors reduces back reflections in the optical signal, improving signal quality and increasing measurement accuracy.

Technology explained simply
The test cables feature a duplex design, meaning they integrate two fibres in one cable to enable bidirectional data transmission. The LC/APC and SC connectors are standard connector systems in fibre optics; LC is compact and commonly used in switches and routers, while SC is often used in patch panels and network devices. The APC optics (Angled Physical Contact) ensure that the fibre ends meet at an 8° angle, minimising back reflections. This is particularly important in sensitive optical systems to avoid signal interference. The length of 2 metres is sufficient for most standard measurements and enables a practical simulation of real connections.

The couplers are also designed for APC connectors to maintain optical quality.

Compatibility and accessories
The kit is specifically designed for singlemode fibre systems and is compatible with standard connector systems SC and LC. The use of APC connectors requires that all other components in the network are also APC-compatible to fully benefit from the low back reflection. The test cables can be connected to corresponding network analysers, OTDRs (Optical Time Domain Reflectometers) or other optical measuring instruments equipped with SC or LC connectors. The combination of duplex and single test cables offers flexibility in adapting to different measurement tasks, such as testing patch panels or connecting devices with different connector systems.

Installation and mounting
Installation is performed by simply plugging the test cables into the corresponding fibre sockets. The cables are equipped with robust connectors to ensure a secure connection. The LC/APC couplers enable quick and repeatable connections between the cables. It is important to keep the connectors clean to avoid optical losses. The cables are designed for indoor use and do not require special mounting aids.

Advantages in operation
Using this test cable kit ensures high measurement accuracy and repeatability, as all components are standardised and designed to reference quality. The combination of duplex and single test cables offers flexibility in adapting to various measurement tasks. The APC connectors minimise back reflections, improving signal quality in sensitive systems. The couplers enable quick and secure cable connections, increasing work efficiency. The kit is therefore a reliable tool for professionals in the field of fibre optics.