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PAVA System

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PAVA System

Representing the cutting edge of audio technology, public address and voice alarm systems provide the highest quality audio equipment using the latest digital techniques for greater reliability, ease of operation and simplicity of configuration. Voice alarm systems are recommended for all public buildings and multi-story buildings over four floors. Voice Alarm (VA) systems are the quickest way to evacuate the public & staff from a building.

In the case of fire-incident detection, automated messages regulate people’s movement in stairwells and hallways. Hence, the public address system relieves a calm and systematic evacuation. These messages are supplemented by spoken messages from the fire service or management suite confirming the validity and need to leave the building. This positive confirmation speeds evacuation and avoids the “false alarm” mentality reducing the risk of death from fire.

Public address solutions requirements

  • LOUDSPEAKER LINES

  • Supervising lines – controlled break and short circuit
  • Systems with high impedance speaker – 100 V technology
  • Long wire – less value of the electric current
  • Simple installation – (different types of speakers with various loads can be connected to the same line
  • Allowable voltage drop – 10%
  • Fireproof cables
  • Damage to a single circuit should not cause total loss of coverage (wiring redundancy)
  • Appropriately designed zones

  • DEVICES

  • Controlled all system components
  • Control units and amplifiers comply with the EN 54-16 requirements
  • Power supply units comply with the EN 54-4 requirements
  • Loudspeakers comply with the EN 54-24 requirements

  • MESSAGES

  • Ability to play different messages to different zones at the same time – sequences of announcements
  • EVAC, ALERT, CODED, and INFORMATION messages
  • The aim of the broadcast message is not to inform people about the problem threat, but to force them to take action related to the evacuation.

  • SPL (Sound Pressure Level)

  • Absolute minimum sound level – 65 dBA,
  • Absolute minimum sound level at bedtime – 75 dBA,
  • Audible sound alarm above background noise (the ratio of signal to noise ratio) of 6dB to 20dB – recommended 10 dB,
  • The maximum level of 120 dBAsound the alarm.

  • STI (Sound Transmission Index)

  • The quality of messages
  • Speech intelligibility throughout the coverage area should be greater than or equal to 0,5 STI.

  • The quality of messages

  • The quality of messages is affected by the following factors:
  • The level of background noise
  • Signal level
  • Features of the audio source,
  • The location of the sound source,
  • Location plane overflow
  • The acoustics of the room.

  • Acoustic simulations

  • Project support in the selection of speaker placement in the modeled rooms,
  • Input data – very difficult to define, precise definitions are necessary finishing materials,
  • Different methods of measurement and calculation programs,
  • Experience with the use of simulators guarantee to avoid the thick mistakes

PABX System

Private Automated Branch Exchange (PABX) is a phone switching system that widely used in offices and plants, allowing a single access number to offer multiple lines to outside callers while providing a range of external lines to internal callers or staff.

Aegis provides a full range of PABX systems including analog PABX, IP PABX and Hybrid PABX. The IP PABX uses “Voice over Internet Protocol” (VoIP) technology to transform high speed internet service into a phone line to convert voice into digitized packets and then put the digitized packets onto the data network.

It can easily adapt to any business, helping clients increase employees’ productivity, improve customer service and reduce cost, bring long term benefits for scalability, manageability and enhanced features.

Brand We offer

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