The device for active protection of information from leakage via power supply and grounding circuits (generator of adjustable noise via the power grid) SEL SP-44 is designed to protect information processed by technical means and systems by generating a noise signal of masking interference in power supply and grounding circuits. Certified according to the requirements of the document "Requirements for means of active protection of information from leakage due to PEMIN (FSTEC of Russia, 2014) up to protection class 1 of type "B" and can be installed in dedicated premises up to and including category 1. Structurally, it is a two-channel digital generator with a built-in device for inducing a noise signal on power supply and grounding circuits directly through a network plug.
Capabilities and features of the device:
Digital autonomous control and monitoring of settings with protection from unauthorized access and information output to the built-in liquid crystal display. The use of two uncorrelated noise generators for the phase-to-ground and zero-to-ground circuits eliminates the possibility of picking up the information signal for both antiphase and in-phase connection schemes. The presence of independent level controls for the low- and high-frequency ranges allows optimizing the interference spectrum for electromagnetic compatibility while maintaining sufficient masking efficiency. The device has the highest class of resistance to impulse interference and allows long-term operation under equivalent short-circuit conditions.
The presence of a built-in counter of the total operating time of the interference generator with recording of values in protected non-volatile memory. During operation, the device constantly performs self-testing and in the event of a malfunction, it produces an audible and visual signal.
Specifications: Range of generated noise signal 10 kHz – 400 MHz Number of independent noise generators 2 Entropy noise quality factor not less than 0.9 Sub-range for adjusting the LF noise level 0.01 – 5 MHz Sub-range for adjusting the HF noise level 5 – 400 MHz Range of adjusting the noise level in each sub-range not less than 20 dB Size of the built-in LCD screen 50 x 15 mm Indication of normal operation LED, text Indication of emergency mode LED, text and sound (buzzer) Control switch on the device, wired remote control, via Ethernet Generator power supply from an AC network 220 V 50 Hz Dimensions 172x 80x42 mm Weight no more than 1.1 kg