PUBLIC ADDRESS AMPLIFIER

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PUBLIC ADDRESS AMPLIFIER

for Mainline & Mass-transit Vehicles

This unit is installed in every car of the train. It contain audio power amplifier to drive the associated loudspeakers.

  • The Public Address Amplifier unit is a microcontroller based intelligent unit.
  • Sound operated automatic level adjusting system (SOALAS) to provide optimise sound output as per ambient noise level.
  • This unit act as a hub for train data bus to drive data signals for displays.
  • The power amplifier is rated to deliver 40W rms (under minimum DC supply conditions).
PUBLIC ADDRESS AMPLIFIER

Technical Specifications

  • Microprocessor based control.
  • Seven frequency band graphic equalising function.
  • Proprietary SOALAS functionality to adjust gain as per sampled ambient level for PA announcement.
  • Configuration & setting through Notebook PC.
  • Aluminium natural colour extrusion enclosure.
  • Driving of loudspeakers.
  • 40W audio amplifier.
  • Interface to speech pair & train data bus.
  • Approximate mechanical size: 520 mm (D) × 432 mm (W) × 162 mm (H).
  • Weight: 9 kgs. (approx.).

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