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of both safety and performance. Halogen-free, they must be capable of ensuring good dielectric performance, resisting high radiation while remaining flexible to facilitate integration and withstand the various mechanical stresses. Combining these properties requires complex design work. A highly resistant cable that maintains its flexibility gives engineers options as they design tailor-made solutions that reach the right compromise for the application.
Example of 4-way fiber optic cable made by Axon'. Axon' optical cables can be used without any pre-processing, while typical optical fiber cables require a few days of thermal cycling before using.
Better access for successful integration
Adapting to the elements means more than resisting high temperatures or chemicals. It may also be a question of facilitating the installation of the connectors in difficult to access equipment. Small in size, Micro-D, or Nano-D connectors are weight- and space-saving solutions. Accessing the inside of the equipment to mount or dismount components is challenging in space-constrained areas. This is the case for some large satellite constellations which include many small satellites or even smaller CubeSats. As in avionics, one of the objectives of this market is to produce quickly and in large volumes. Providing connectors with a quick locking system is a real advantage in terms of cost saving and quick integration. Connectors with removable contacts and demountable versions also facilitate integration into the customer's system.
The Flexorad range of 50Ω and 75Ω flexible RF cables is designed for nuclear and research applications. An innovative dielectric and unique in-house processing technology gives Flexorad greater flexibility than any equivalent on the market in PEEK and Polyimide. Halogen- free and high temperature resistant, this range combines radiation resistance (≥3,500kGy) and excellent electrical performances (dielectric constant є 2.2). Controlling the process to adapt the link to harsh environments The most fragile part of a connection is the interface between the connector and the cable. A suitable overmolding will provide mechanical protection to the connection and give the final shape to the product. The choice of materials must meet the requirements of the application. This includes, for example, facilitating integration into the customer's system, resisting abrasions, being waterproof, and resisting heat or chemicals. For fiber optic links, the interface between the connector and the optical fiber is also a sensitive area. Without a suitable implementation, the risk of degrading the optical attenuation and breaking the fiber is high. In order to secure the connection area, it is vital to choose a cable with a low thermal shrinkage. The shrinkage rate defined in the ARINC802 standard is 15 mm but for severe environments. It is advisable to lower this value to 0.5 mm (for a cable with a length of 3.5 m).
Versatys power connector, with up to 40 A per contact, a Micro-D based interface, and a fast-latching system for easy access. Removable contacts make maintenance easier.
Visit Axon' Cable to learn more.
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