• 1, 2, 4, or 8 audio outputs (selection from 100 / 70 / 50 V outputs)
• Audio processing and delay for each amplifier channel
• Amplifier supervision and spare amplifier switching
• Loudspeaker line and loudspeaker supervision (LBB 4428/00 only line supervision)
• Eight control inputs and 1, 2, 4 or 8 control outputs

There are four types of Power Amplifier units in the Praesideo product range. These differ in the number of amplifier channels per frame: one, two, four, or eight. The overall power rating is 500 watts for all of the amplifiers. The Power Amplifiers can be set to 100 V, 70 V and 50 V output tappings. They have short-to-ground and short-circuit detection functions, and can generate their own pilot tone for supervision purposes.

• 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.

• Redundant network connection
• Indicators for power and fault status
• Two supervised control inputs
• Can use a local power supply

Most of the Praesideo system units have plastic fiber optic interfaces. Plastic fiber is used to interconnect nodes which are less than 50 meters apart. For distances of more than 50 meters, glass fiber optic cable is used. A fiber interface converts from plastic to glass fiber, and vice versa. The fiber interfaces have a power supply input to provide power to remote network sections, and two control inputs. The control inputs can pass on supervision information about the power supply connected to the fiber interface.

• 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.

• 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.

• Connects to call station interface via CAT-5 cable
• Up to 1 km from Praesideo optical network
• Uses standard Praesideo keypads for extension
• Built-in limiter
• Powered via CAT-5 and/or local power supply

The PRS‑CSR is a call station with the same functionality as the basic call station, LBB 4430/00, but it uses CAT-5 cable for its connection to the Praesideo network. It connects, one-to-one, to the call station interface, PRS‑CSI, which is part of the Praesideo optical network. The CAT-5 cable, carrying digital audio and control data, can be as long as 1 km. The length of the CAT-5 cable is not a part of the Praesideo optical network length. This considerably increases the overall possible length of the optical network. The PRS-CSR can be extended with up to 16 keypads (LBB 4432/00 or LBB 4434/00), each with eight programmable keys. Extension with a numeric keypad (PRS‑CSNKP) is also possible.

• Connects to call station interface via CAT‑5 cable
• Up to 1 km from Praesideo optical network
• Connection for keypads
• Connection for transducers and status LEDs
• Stable metal enclosure

The PRS‑CSRM is a module with the same functionality as the remote call station, PRS‑CSR, but without its housing and other components. It is a building block to make custom call stations or panels. It connects via a CAT‑5 cable, one‑to‑one, to the call station interface, PRS‑CSI, which is part of the Praesideo optical network. The CAT‑5 cable, carrying digital audio and control data, can be as long as 1 km. The CAT‑5 cable does not contribute to the Praesideo optical network length. This considerably increases the overall possible length of the network. The PRS‑CSRM can be extended with up to 16 keypads (LBB 4432/00 or PRS‑CSKPM), each with eight configurable keys. Extension with a numeric keypad (PRS‑CSNKP) is also possible.