• 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.

• 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.

• 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.

• 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.

• 4‑channel, Class D power amplifier
• 100V/70V/8Ω/4Ω outputs
• Complete loudspeaker processing DSP with input mixing; controlled by PC GUI and iOS app
• Amp Link to connect easily with PLM-8M8
• Environmentally friendly auto standby mode

The PLM‑4Px2x PLENA matrix Amplifiers are built to perform. Designed to be reliable, cost effective, multi
channel amplifiers; they are suitable for almost any application that demands high quality audio and flexible control. The built‑in DSP processor is packed with powerful features. The loudspeaker library will allow the easy tuning of Bosch/EV/Dynacord loudspeaker products. The power saving mode on the amplifier allows the amplifier to save over 80% of its running costs when areas are not being used. Equipped with “Amp Link”, combining both the PLM‑4Px2x amplifiers with the PLM‑8M8 8 Channel DSP Matrix Mixer couldn’t be easier. Some typical application include: Shopping centers, schools, restaurants, bars, nightclubs, cafes, gyms, recreational facilities, churches, warehouses, office buildings, regional airports, train stations, bus terminals, boardrooms, meeting rooms, conference facilities, small theme parks, museums, back of house performing arts centers and sports stadia.

• 4‑channel, Class D power amplifier
• 100V/70V/8Ω/4Ω outputs
• Complete loudspeaker processing DSP with input mixing; controlled by PC GUI and iOS app
• Amp Link to connect easily with PLM-8M8
• Environmentally friendly auto standby mode

The PLM‑4Px2x PLENA matrix Amplifiers are built to perform. Designed to be reliable, cost effective, multi channel amplifiers; they are suitable for almost any application that demands high quality audio and flexible control.
The built‑in DSP processor is packed with powerful features. The loudspeaker library will allow the easy tuning of Bosch/EV/Dynacord loudspeaker products. The power saving mode on the amplifier allows the amplifier to save over 80% of its running costs when areas are not being used. Equipped with “Amp Link”, combining both the PLM‑4Px2x amplifiers with the PLM‑8M8 8 Channel DSP Matrix Mixer couldn’t be easier. Some typical application include: Shopping centers, schools, restaurants, bars, nightclubs, cafes, gyms, recreational facilities, churches, warehouses, office buildings, regional airports, train stations, bus terminals, boardrooms, meeting rooms, conference facilities, small theme parks, museums, back of house performing arts centers and sports stadia.

• 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.

The PRS-2P250 Power Amplifier receives input signals over the network. They have two auxiliary audio inputs for local audio, and eight control inputs which are easily programmable for actions, and priorities can also be assigned to these inputs. That control input is capable of controlling open and short circuits on the attached panel. Control outputs are freely programmable for faults and call-related actions.

The units are self-monitoring and continually report their status to the network controller. They support both single branch and redundant loop cabling. The amplifiers have a changeover facility for spare power amplifier switching. Changeover relays are included with the units. The amplifiers have a 48 V DC back-up supply input.

The digital audio processing can handle three parametric equalization sections and two shelving equalization sections per channel with configurable audio delay.

Features

• Audio processing and delay for each amplifier channel
• Amplifier supervision and spare amplifier switching
• Loudspeaker line and loudspeaker supervision
• Eight control inputs and 1, 2, 4 or 8 control outputs

• 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.