For projects implemented by Thales, Bitstream has supplied industrial Ethernet switches dedicated to the implementation of critical infrastructure taking into account PTP (Precise Time Synchronisation), PoE (Power over Ethernet), 10Gbit/s FO uplinks. To date, we have supplied devices such as Hyperion-105 and Hyperion-200 (industrial Ethernet DIN rail switches). These devices were used, among other things, for the implementation of the SRK system of the E20 section. As one of the components of the equipment delivery, the company provided support for the configuration and commissioning work and carried out a number of training sessions on the use of the equipment.