Praesideo 3.5 Installation and User Instructions 4 Amplifiers

en 166

10 Basic Amplifiers

The basic amplifier is completely supervised and fault events are reported via the multi channel interface to the Praesideo network controller.

10.1 Introduction

The basic amplifier is available in these versions:

PRS-1B500: 1 channel, 500 W.

PRS-2B250: 2 channels, 2 x 250 W.

PRS-4B125: 4 channels, 4 x 125 W.

PRS-8B060: 8 channels, 8 x 60 W.

The basic amplifier is a high efficiency class-D power amplifier for public address and emergency sound systems and is designed as an extension to the Praesideo system but can also work as a stand alone amplifier. If not used as a stand alone amplifier, the basic amplifier is used in conjunction with the multi channel interface which provides the audio signals and control.

Loudspeaker lines and loudspeakers connected to a basic amplifier channel can be supervised by using the LBB4441 and LBB4443 supervision boards. The multi channel interface acts as a supervision controller, so no LBB4440 is required.

In contrast to the power amplifiers, the basic amplifiers do no offer built-in audio processing functions as equalization, delay and automatic volume control.

Audio input

LED Indicators

Loudspeaker Out A

Priority Switching

Class D

Loudspeaker Out B

Multi Channel Interface

Audio input

+ Supervision (2)

(2)

Spare In

Loudspeaker Out A

Multi Channel Interface

Priority Switching

Class D

+ Supervision (1)

(1)

Loudspeaker Out B

Spare In

Mains

Power Supply

48 V Back-up

figure 10.1: Block diagram of a basic power amplifier

Bosch Security Systems 2011-02

Page 166
Image 166
Bosch Appliances 3.5 manual Basic Amplifiers, Block diagram of a basic power amplifier

3.5 specifications

Bosch Appliances has established itself as a leader in home technology, known for its commitment to quality, innovation, and sustainability. The Bosch 3.5 series epitomizes this ethos, offering a range of appliances designed to enhance everyday living while ensuring energy efficiency and ease of use.

At the heart of the Bosch 3.5 line is the integration of advanced technologies optimized for performance. One standout feature is the EcoSilence Drive, a brushless motor used in dishwashers and washing machines. This technology ensures quieter operation while offering reliability and energy savings. Customers can appreciate a peaceful home environment while benefiting from powerful cleaning options.

Another significant characteristic of Bosch appliances is their focus on precision and customization. The Bosch 3.5 series includes models with adjustable shelving and customizable interior layouts, allowing consumers to maximize storage according to their needs. The flexibility in functionality is complemented by features such as the VarioFlex and VarioDrawer systems in dishwashers, which offer additional loading options for better convenience.

Zones such as cooking and refrigeration have also seen remarkable improvements in the 3.5 series. The induction cooktops utilize speed and precision to deliver quick cooking experiences while maintaining safety, thanks to features like automatic shut-off and child lock. Furthermore, Bosch refrigerators included in this line employ innovative cooling technologies, such as the Dual Compressor system, which ensures optimal freshness for longer by preventing odor transfer between compartments.

Sustainability is a key characteristic of Bosch products. The 3.5 series appliances are designed to meet stringent energy efficiency standards, with many models Energy Star certified. This commitment to environmental stewardship resonates with eco-conscious consumers who seek to reduce their carbon footprint without sacrificing performance or style.

Aesthetically, Bosch appliances in the 3.5 line boast sleek designs that harmonize with modern kitchen aesthetics. With stainless steel finishes, multi-functional interfaces, and intuitive controls, these appliances not only perform exceptionally but also contribute to a sophisticated home environment.

In conclusion, Bosch Appliances 3.5 series integrates cutting-edge technology, sustainable practices, and user-centric designs, making them an optimal choice for modern households looking for reliability, efficiency, and style. Whether for cooking, cleaning, or preservation, Bosch continues to set the standard in home appliances.