RIAS-4SHA/1

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The generator of noise-like signals in the speech frequency range in the standby mode of calling the telephone set in the analogue telephone communication networks "RIAS-4SHA" mod.1
2 474 ₴
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  • License DSTZI to perform work on the protection of voice information
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Provides active suppression of parasitic acoustoelectric conversion signals in the speech frequency range in the standby mode of calling the telephone. The effective voltage value of the noise signal is not less than 100 mV in call waiting mode and not more than 1 mV in speech mode. The effective frequency band of noise interference is from 0.3 to 10 kHz. The unevenness of the amplitude-frequency characteristic in a given frequency band is not more than 6 dB. The attenuation level of the noise signal outside the specified frequency band is at least 40 dB. The coefficient of interspectral correlation relationships is not more than 2.0. Noise quality factor - not less than 0.8. Constant current consumption from a subscriber telephone line - no more than 2 mA.

The generator provides active suppression of the parasitic acoustoelectric conversion signal in the speech frequency range in the standby mode of calling the telephone set in analog telephone networks.

The effective voltage value of the noise signal is at least 100 mV in call waiting mode and not more than 1 mV in language mode.

The effective frequency band of the noise generator is from 0.3 to 10 kHz.

The spectral noise density in the effective frequency band is not less than 900 mV2 / kHz;

The unevenness of the amplitude-frequency characteristic in a given frequency band is not more than 6 dB.

The attenuation level of the noise signal outside the specified frequency band is at least 40 dB.

The coefficient of interspectral correlation relationships is not more than 2.0.

Noise quality factor - not less than 0.8.

The direct current consumption from the low-current circuit is not more than 2 mA.

Technical readiness time - no more than 1 sec.

The overall dimensions of the generator are not more than 78x73x22 mm.

The mass of the generator is not more than 0.2 kg.

The generator remains operational in the temperature range: +10 ÷ +40 ° C;

The generator is included in the List of general-purpose tools that are allowed to provide technical protection of information, the need for protection of which is determined by the legislation of Ukraine, is formed by the Administration of State Special Communication of Ukraine.

The generator is completed with operational documentation in accordance with GOST 2.601-95.

The generator meets the requirements of sanitary standards.

The generator is designed in accordance with the requirements of TU U 31.6-33694400-002: 2009 "A complex of linear information security" RIAS – LZ ".

The generator has an expert opinion in the field of TZI No. 258 dated 12/28/2010

The warranty period of operation of the generator is 1 year.

The warranty period of storage of the generator is 2 years.

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