Railways • S002.18

April 13, 2024 • 02:24

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application example: Railways




Emergency and public address system for railway tunnels

Architecture based on ASTRO System Manager, IP-DAD units, digital VoIP “RFI Gallery" emergency apparatus.
  • Fully redundant architecture: two control units, redunded between them, and installed at sites geographically distant from each other.
  • Each site is provided with an ASTRO System Manager, with power supply and redundant hard disk. In case of failure of one unit, the second unit is able to manage all the functions of the system.
  • All units, both in the tunnel and for system management, are linked together via fiber optic cables, while, in each tunnel, copper cables are used to connect the speakers.
  • The apparatus for tunnel consists of a VoIP phone with a red button "mushroom shape" and a lock with RFI railway key. The red button is available to the passengers for activating an emergency call to the center operator. The lock is available to railway RFI staff to turn on the call to the center operator and to activate public address system in the tunnel.
  • Speakers and amplifiers with 4 kV insulation, standards RFI.
  • Possibility to install amplifiers for gallery in configuration 1+n or 1+1, anyway with control of the integrity of the line speakers.
  • Ability to manage multiple tunnels simultaneously.
  • Management of all events with recognition of the button and/or position of the key activated for each device in the gallery.
  • Management of diagnostics and remote configuration via CTM client.




 Emergency and public address systems > > Railways
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As evident from the presentation of the application cases shown, the architectures granted by ASTRO System Manager are very many.

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