The technical means of protecting speech information from leakage via the optical-electronic (laser) channel "Sonata-AV4L" is designed to excite a vibration noise signal in the slats of window blinds. The product is part of the System of active acoustic and vibration protection of acoustic speech information "Sonata-AV" model 4B (hereinafter the System) and is certified as part of it.
Technical characteristics of the Product The main technical characteristics of the Product are listed in the Table. Characteristics not listed comply with the requirements of the FSTEC of Russia for active acoustic and vibration protection of acoustic speech information. Parameter Value Operating frequency range, Hz 90 ... 11,200 Range of octave level adjustment, dB, not less than 6 1) Range of integral level adjustment, dB, not less than 10 Maximum number of connected vibration exciters, pcs. 36 2) Number of noise outputs, pcs. 2 Control interface ReBus-3 Power supply voltage, V 10 – 14 Current consumed by the generator unit "AV-4L" from the power line, mA, no more than 150 Types of indication: - directly on the generator unit "AV-4L" LED - on other elements of the System combined Overall dimensions, mm, no more than - generator unit "AV-4L" 96 x 71 x 24 - vibration exciter "SP-4L" diameter 48 height 14 Operating conditions: - ambient temperature from +5 to +40ºС - relative air humidity up to 80% at a temperature of +25ºС Main characteristics of the protected lamellas: - width x length (max) x thickness, mm 89 x 2000 x 0.25 3) - material painted metal - suspension vertical Notes. 1) Except for the octave band with a geometric mean frequency of 125 Hz. 2) The number is always even (the same in each of the two channels), determined by the number of protected lamellas. 3) Typical values are indicated: width, thickness and length. Dimensions can be changed taking into account compliance with standards.
The product is a technical means of vibroacoustic protection with a central generator unit, passive vibration exciters and a subsystem for automatic control of the number of vibration exciters connected to the generator unit. The noise signal generated by the Product in the lamellas of window blinds is noise vibrations of the lamella surface. The size and installation location of the lamellas is selected based on ensuring the absence of direct visibility of potential "targets".
Standard set of the Product:
Name Quantity Note Generator unit "AV-4L" 1 pc. (1 for 36 vibration exciters) Required element. The quantity is always even (the same in each of the two channels), determined by the number of protected lamellas Vibration exciter "SP-4L" 10 ... 36 pcs. (The quantity is equal to the number of lamellas.) Required element. - "" - Connecting cables 1/2 pcs. (determined by the option of sliding the lamellas) Required element. The number of connectors is equal to the number of vibration exciters Power supply and control unit "Sonata-IP4..x" One for 5 (15) generator units. (5 pcs. for IP4.3, 15 pcs. for IP4.1) Necessary only if there is no Sonata-AV4B TSZI at the facility. Sonata-DU4.3 Control Panel 1 per TSZI complex - «» -
Power supply, control and monitoring of the Product is carried out as part of the Sonata-AV4B System. The generator unit is installed on the wall or the cornice of the blinds approximately in the middle of the protected group of slats and is connected to the secondary power supply and control line of the Sonata - AV4B System. If the latter is not available at the facility, the connection is made according to the diagram in Fig. 1. Sonata-AV4L 2 Fig. 1 Connection diagram of the Product elements in the absence of the Sonata-AV4B TSZI at the facility. The "AV-4L" generator unit provides visual indication of the operating mode using the "MODE" indicator. In addition, information about the serviceability and operating mode of the Product is read by the power supply and control unit "Sonata-IP4.x" and displayed on the control panel "Sonata-DU4.3". The integral and octave levels of the output signal of the Product are adjusted using the "Kamerton" software via the power supply and control unit of the System, connected to the control PC via the USB interface. The set of adjustments of the integral and octave levels (protection profile) is stored in the non-volatile memory of the generator unit "AV-4L". By default, 2 protection profiles are configured in the Product - with a minimum and maximum noise signal level.
The installation of vibration exciters on the slats of window blinds is carried out according to Figures 2 and 3. The distance from the upper edge of the slat to the axis of the vibration exciters "SP-4L" 70 mm is recommended and may be different if the standards are met.