Emission Disclosure Filter (TEMPEST)

The Emission Disclosure Filter (TEMPEST) FEM-25 is designed to protect information circulating in primary and auxiliary computer and telecommunication system equipment from potential data leakage through single-phase power networks. Additionally, the filter is used to eliminate electrical disturbances in the power supply network that could threaten information integrity.

Technical Specifications:

The filter can operate continuously under the following conditions:

• Ambient temperature: from 5°C to 40°C.
• Relative humidity: not greater than 80% at 25°C.

Operating Parameters:

• Network voltage and frequency (1 phase): (220 ± 22) V, (50 ± 2) Hz.
• Load current: 25 A.

Electrical Signal Attenuation:

• In the frequency range from 0.01 to 0.15 MHz for symmetrical and asymmetrical disturbances without load current: not less than 20 dB.
• In the frequency range from 0.01 to 0.15 MHz for symmetrical and asymmetrical disturbances with load current: not less than 20 dB.
• In the frequency range from 0.15 to 1000 MHz for asymmetrical disturbances and in the range from 0.15 to 30 MHz for symmetrical disturbances without load current: not less than 60 dB.
• In the frequency range from 0.15 to 1000 MHz for asymmetrical disturbances and in the range from 0.15 to 30 MHz for symmetrical disturbances with load current: not less than 60 dB.

Voltage drop at 220V, 50Hz with load current: not more than -5V.

Dimensions:

• External dimensions: 350x145x52 mm.
• Weight: not more than 7 kg.

The Emission Disclosure Filter (TEMPEST) FEM-25 is a universal solution and due to its parameters, it can be used in various fields such as telecommunications, medicine, the banking sector, industry, etc. It is possible to manufacture filters in accordance with specified standards and technical requirements of the customer.