Acoustic Speech Information Leakage Protection System STB-231 for Enhanced Security

The system consists of a central generator unit, passive transducers and VTSS line disconnectors connected to it by wires, as well as protection devices against "laser microphones" and is designed to set acoustic and vibration masking interference that protects acoustic speech information circulating in designated rooms up to the most important rooms of the Russian Federation government authorities. Conformity of the Device STB 231 to the information security requirements is confirmed by the Certificate of Conformity of FSTEC of Russia No. 3949 dated 5 June 2021, valid till 5 June 2026, 2025 and FSB of Russia No. SF/SZI-0556, dated 30 June 2022, valid 30 June 2027.