PRAESENSA, IP-connected and fully-featured
Introducing PRAESENSA, the new standard in Public Address and Voice Alarm (PAVA) systems from Bosch. The system provides high-quality audio for music or messaging to every area in your building and is controlled via the intuitive graphical user interface on the call station touchscreen, or via personalized software running on a tablet or PC. Easy to install and highly cost-efficient, this advanced Public Address and Voice Alarm system
brings peace of mind to a new level.
Fully IP-based and fully-featured, this is a state-of-the-art Public Address and Voice Alarm system. Installation and integration are straightforward, and it delivers great audio quality with an easy-to-use interface. PRAESENSA uses IP-connectivity and a smart power concept with integrated redundancies to give you an extremely cost-efficient system, equally suited to either centralized or decentralized topologies.
Highest interoperability, flexibility and scalability with every system component securely connected via IP
At last, a system that communicates with all its component parts effortlessly and reliably. Using an advanced media networking architecture, PRAESENSA provides full control and communication with all areas in the application building(s). When buildings are changed, for instance when new areas are added or defined, PRAESENSA can immediately accommodate these changes. Thanks to IP connectivity, the system enjoys extreme adaptability and scalability. And with backup power kept local to the amplifiers, the system is equally suited to both centralized and decentralized set-up. All PRAESENSA devices include a built-in and pre-configured multi-port Gigabit Ethernet switch. This assures to have a fully EN54-16
certified system and reduces costs for third party networking equipment.
Everything in a PRAESENSA installation is connected to an advanced media networking architecture called OMNEO. This enables full device interconnectivity for digital audio communication and always-on system control. OMNEO is built upon multiple technologies and open standards, supporting AES67, Audinate’s Dante* and AES70, with additional network security from AES128 for audio encryption and TLS for real-time authentication. Using this professional-grade media networking architecture, PRAESENSA gives you easier installation, better audio quality and greater scalability than any other Public Address and Voice Alarm System available today
Efficient amplifier performance further reduces total cost of ownership
PRAESENSA uses a highly innovative multi-channel amplifier architecture developed by Bosch, allowing the system to adapt individually to connected loudspeaker loads. It does this by intelligently dividing the available output power across all channels, to a total of 600W. This means that available amplifier power is utilized more effectively with less surplus power, and less supply power and fewer amplifiers are needed to cover the speakers’ power demand. Power consumption is especially reduced in the idle state (where most systems spend a great deal of time), further saving energy costs. Choosing this system means choosing lower operational and maintenance costs. Battery consumption is reduced and fewer batteries are needed, reducing heat loss and needing less rack space too.
Each PRAESENSA amplifier includes a spare amplifier channel which automatically takes over the operations of the failing channel, using the
same redundant power supply and heatsink, making it an extremely cost-effective and space-saving redundancy measure.
Intelligent load sensing and variable output power for each channel allows PRAESENSA to make maximum use of available amplifier power. This approach sets the system apart from traditional multi-channel amplifier systems with fixed maximum output power per channel. This fixed output means that unused or under-loaded channels cannot share unused capacity with other channels. As a result, those traditional systems with separate spare amplifiers require three to four times more amplifier power than loudspeaker power. The knock-on effects of more amplifiers include more rack space, more backup batteries and more air conditioning capacity. PRAESENSA uses around half the amount of amplifier power to do the same job, with noticeable savings on space, energy and cost.
Unique user convenience with optimized call station design and intuitive graphical user interface
The PRAESENSA call station was developed by a design team in close cooperation with real users. Extensive research and field trials incorporated user experience, needs and wishes for an intuitive system that could also solve common operator issues. With PRAESENSA, announcement progress is clearly indicated on the call station screen. Once initiated, the system guides the operator, telling them when to speak once the pre-chime or introductory message has ended. The system also shows when the announcement has been successfully completed in all destination areas.
All functions are easily selected from the touch screen, and areas are highlighted via keypad keys with LEDs providing instant and accurate status
information. Access permissions to certain functions and areas can be configured per call station or user, ensuring confident operation from the first day of use. The ways a building is used tends to change over time. PRAESENSA takes that into consideration, with software functionality that can be easily adjusted to match those changing requirements and usage needs.
Feature-rich and future-ready with further capabilities added over time
PRAESENSA is an advanced Public Address and Voice Alarm system comprising key hardware devices served by custom software solutions. Each hardware device is designed as a complete subsystem, requiring no additional peripherals. For example: call stations and amplifiers all have inbuilt DSP for sound processing; amplifiers have an inbuilt spare channel and flexible output power per channel; the power supply has an inbuilt battery charger. This design approach keeps every PRAESENSA system simple, flexible and scalable, with system functions governed by software which is regularly updated to extend the system’s capabilities.