• Public address and emergency sound system control unit
• Control and routing of 28 simultaneous audio channels
• Ethernet interface for configuration, control, diagnostics, and logging
• Digital storage for pre‑recorded messages
• EN 54‑16 and ISO 7240‑16 system certification

The network control unit is the heart of the Praesideo system. The unit routes up to 28 simultaneous audio channels, delivers power to the system, reports faults, and controls the system. Audio inputs can be announcements from call stations, background music, or local audio. The network control unit can be configured for the most complex public address systems. The configuration can be done comfortably and efficiently via a PC. The PC is only needed for configuration. The controller can operate independently of the PC. However, the controller can use a PC to display information on the system status using the software, supplied with the unit. The unit can be freestanding on a tabletop or mounted in a 19″ rack. The PRS‑NCO3 network controller needs PRS‑SW software version 4.0 or higher.

• Two current-limited network tap-offs
• Supports redundant network connection on main loop
• Can feed power from an external supply to the network
• Indicators for power and fault status

The network splitter is used in a network to provide two branches from the main cable run. It can use an external DC power supply, or it can use the power supply from the network controller. The unit automatically switches to the local power supply unit when it is connected to it, reducing the power drain on the main network. The network splitter can also function as a repeater, effectively extending the length of the main network another 50 meters.

• Serves multiple Call Station Clients and/or Telephone Interface Clients
• Controls multiple Network Controllers in extended systems
• Includes a license for a single Network Controller
• Controls user access with selectable rights per user

The PRS‑SWCS PC Call Server is a Windows service connected to one or more Praesideo network controllers via TCP/IP, using the Praesideo open interface. It is used in combination with one or more client applications, such as the PC Call Station Client and the PC Telephone Interface Client, handling all operational requests. The PRS‑SWCS PC Call Server is configured via an included PC Call Server Configuration Client, running on the same computer.

• Serves multiple Call Station Clients and/or Telephone Interface Clients
• Controls multiple Network Controllers in extended systems
• Includes a license for a single Network Controller
• Controls user access with selectable rights per user

The PRS‑SWCS PC Call Server is a Windows service connected to one or more Praesideo network controllers via TCP/IP, using the Praesideo open interface. It is used in combination with one or more client applications, such as the PC Call Station Client and the PC Telephone Interface Client, handling all operational requests. The PRS‑SWCS PC Call Server is configured via an included PC Call Server Configuration Client, running on the same computer.

• Serves multiple Call Station Clients and/or Telephone Interface Clients
• Controls multiple Network Controllers in extended systems
• Includes a license for a single Network Controller
• Controls user access with selectable rights per user

The PRS‑SWCS PC Call Server is a Windows service connected to one or more Praesideo network controllers via TCP/IP, using the Praesideo open interface. It is used in combination with one or more client applications, such as the PC Call Station Client and the PC Telephone Interface Client, handling all operational requests. The PRS‑SWCS PC Call Server is configured via an included PC Call Server Configuration Client, running on the same computer.

• 12 A battery charger
• 6x 40 A, 3x 5 A outputs
• 150 A back‑up current
• Fully supervised, EN 54‑4 certified
• Under‑voltage and over‑voltage protection

The PLN‑24CH12 and PRS‑48CH12 Battery Chargers are designed for public address and emergency sound systems, to assure that the system batteries are always charged. Rack mountable, the unit charges lead‑acid batteries and simultaneously provides 24 V or 48 V for system components that use 24 V or 48 V exclusively. These chargers are fully compliant and certified to EN 54‑4. The battery chargers are premium quality, intelligent, microprocessor controlled devices.

• PC interface for operators with synoptic view of zone locations in tabbed windows
• Configurable access for different users
• Call and BGM control

Support for multiple network controllers as one system The PRS‑CSC PC Call Station Client is a client of the PRS‑SWCS PC Call Server and must be used in combination with the PRS‑SWCS PC Call Server. It operates with Windows XP / Vista / 7 and can be used on the same PC as the PRS‑SWCS PC Call Server or on different PCs. An almost unlimited number of PRS‑CSC PC Call Station Clients can be installed and used under the same license.

• PC interface software for making calls via telephone into a Praesideo system
• Direct support of VoIP telephones and support of POTS telephones via external interface (not included)
• Configurable access options per user
• Calls are recorded before playback
• Support for multiple network controllers as one system

The PC Telephone Interface Client is a client of the PC Call Server and must be used in combination with the PC Call Server. It operates with Microsoft Windows XP or Vista. The PC Telephone Interface Client must be used on the same PC as the PC Call Server.