Advanced Public Address Server

• Server for the advanced public address software license
• Interface for third party PCs and tablet devices to the PRAESENSA IP‑network
• IP‑networked on existing Local Area Networks
• Secure internet connection to the Local Area Network (LAN) of the building, internet radio, online music streaming and text‑to‑speech‑service
• Internal memory for business messages library and music playlists

The PRA-APAS is an industrial PC with pre‑installed software, acting as a server for PRAESENSA. It provides advanced business related public address functions without compromises and does therefore not support emergency functionalities. The PRA-APAS supports connections to two separate local area networks, the PRAESENSA secure network and the public network with access to the Internet, with a firewall in between. On the public network it
connects to the Internet and to one or more licensed operator devices, such as a wireless tablet or a regular PC. On the secure PRAESENSA network it interfaces with the system controller for control and transfer of multiple simultaneous audio channels. The operator devices use their own web browser to control background music, streaming from PRA-APAS’ own internal memory or from external music portals and Internet radio stations. It offers announcement creation and control facilities to the operator, including message scheduling, live call recording with
pre‑monitoring and playback, and even multi‑lingual text‑to‑speech calls, using on‑line conversion services.

Functions

Public address server

• Industrial PC with pre-installed and licensed software, acting as server to one or more operator control devices, and as interface between these devices and one PRAESENSA system.
• For security reasons the server has two ports to connect to two different local area networks. One port is connected to the secure PRAESENSA network, the other port to the corporate network with access to operator devices and (Firewall protected) access to the Internet.
• License management of operator devices. Each operator device needs a PRA-APAL license for access to the advanced public address server.
• Integrated web server to keep operator devices platform independent. Each operator device uses its own web browser as operator interface.
• Storage of messages and music in internal memory, multiple audio formats supported.

Operator functions

• Easy zone selection with picture representation of zones.
• Control of background music sources and volume levels in selected zones. Music can be streamed from internal memory, but also from music portals on Internet.
• Live call recording of announcements with pre‑monitoring and playback to selected zones.
• Live and scheduled playback of stored messages.
• Playback of text based announcements with automatic (multi‑lingual) on‑line text‑to‑speech conversion.

Connection to PRAESENSA

• The server connects to the PRAESENSA system controller, using the PRAESENSA Open Interface for control of business related functions. Higher priority, emergency related functions are always handled by the system controller.