| Public Address Systems with Centralized Amplification |
Main Features
• Fully integrated Public Address / Intercom / Telephone System.
• Extended intercom operation between access panels (omnibus page/party, selective point-to-point, group calls and conference calls), with virtually unlimited number of simultaneous conversations.
• Paging zone calls (including single zones, any combination of zones and all zones).
• Alarm tones and/or prerecorded messages zone broadcasts (including single zones, any combination of zones and all zones).
• Main Public Address / Intercom stations (access panels) VoIP based, fitted with handset and keypad. If required, also equipped with gooseneck microphone and additional 40 buttons (up to 48 in total) keypad for direct activations.
• Very cheap and cost-effective cables network (LAN network to interconnect all access panels and one standard power pair for each speakers' loop).
• All access panels can be connected with a maximum allowed distance of 250 meters from the relevant LAN switch (instead of 100 meters as per usual standard).
• System architecture allowing, in case of fault of a field device (Public Address / Intercom stations, speakers and beacons), the complete operation of all other field devices even in case of multiple fault events.
• Telephone interface with the plant Telephone System.
• Radio interface with the plant Radio System.
• Interfacing with existing Public Address and Intercom Systems.
Main Applications
Oil & Gas, Petrochemical, Power, Steel, Heavy and Light Industries, and Mobility (Metros, Railways, Highways, Roads and Tunnels).
Main Options
• Indoor speakers for accommodation areas fitted with volume control which in case of emergency calls will be overridden, and the volume automatically set up at the maximum level.
• Broadcast of pre-recorded messages and music through radios, CD readers and MP3 players.
• Dual feeders power supply managing.
• Central cabinets fitted with surge protectors.
• Central cabinets fitted with antiseismic kit.
• Power supply unit in redundant configuration “1+1”.
• Power amplifiers in “N+1” backup configuration.
• System full duplication in “A+B” configuration.
• Public Address System EN 54-16 certified.
 System Architectures Examples > > Public Address Systems with Centralized Amplification
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