The document describes four types of power amplifier units that differ in the number of amplifier channels per frame: one, two, four, or eight. The amplifiers receive audio over the network and have local audio inputs. They monitor attached speaker lines, control inputs, and support redundant networking. The amplifiers provide audio processing, equalization, delay, automatic volume control, and switching for spare amplifiers.
The PLN-1P1000 is a 1000W power amplifier in a 3U rack-mountable housing. It has dual balanced line inputs with priority switching, 70V/100V and 8 ohm outputs, and temperature-controlled cooling. The amplifier can operate on mains power or 24V battery backup, and has monitoring of key functions for emergency use.
The document summarizes a Plena Voice Alarm Call Station from Bosch Communications Systems. The call station allows selection of up to six zones to make calls to in a public address system built with the Plena Voice Alarm System. It has selectable gain, speech filtering, and output limiting for improved intelligibility. Status LEDs and a rotary control provide feedback and adjustments.
The LBB 1938/20 is a 480W, 3U rack-mounted power amplifier that can operate on mains power or 24VDC backup power. It has dual balanced audio inputs, 70V/100V constant voltage outputs, and an 8 ohm output. Additional features include priority switching, output level meters, and monitoring of mains power, battery status, and overheating.
The LBB 1925/10 is a six-zone pre-amplifier that can operate in single or dual channel mode for simultaneous calls and background music across six zones. It has inputs for microphones, background music, emergency signals, and triggers. Zone selection buttons control the routing of background music or calls to the zones. It provides priority overrides and relay-controlled zone switching of amplifier outputs.
The LBB 1935/20 is a 240W, 2U rack-mounted power amplifier that can operate on mains power or 24V battery backup. It has dual balanced line inputs, 70V/100V constant voltage outputs, and an 8 ohm output. Additional features include temperature monitoring, overload protection, and supervision of mains power and battery status.
The LBB 1930/20 is a 120W, 2U rack-mounted power amplifier with dual inputs, 70V/100V and 8 ohm outputs, and backup battery support. It provides priority switching between its two inputs and has monitoring of key functions. The compact unit is suitable for a wide range of public address applications.
The LBB 1957/00 Plena Voice Alarm Keypad is an extension to the LBB 1956/00 Plena Voice Alarm Call Station that adds seven additional zone selection keys. It connects to the call station and allows selection of up to seven additional zones or zone groups. Up to eight keypads can be connected to a single call station. The keypad uses LED indicators to show the active zones and has a durable metal base for tabletop or flush mounting.
The LBB 4440/00 Supervision Control Board monitors multiple loudspeaker and line supervision boards without additional cabling. It can control up to 80 boards and is compatible with 100V and 70V speaker lines. The board detects open circuit faults and is certified for use in Europe, Poland, and maritime applications.
The PLN-1P1000 is a 1000W power amplifier in a 3U rack-mountable housing. It has dual balanced line inputs with priority switching, 70V/100V and 8 ohm outputs, and temperature-controlled cooling. The amplifier can operate on mains power or 24V battery backup, and has monitoring of key functions for emergency use.
The document summarizes a Plena Voice Alarm Call Station from Bosch Communications Systems. The call station allows selection of up to six zones to make calls to in a public address system built with the Plena Voice Alarm System. It has selectable gain, speech filtering, and output limiting for improved intelligibility. Status LEDs and a rotary control provide feedback and adjustments.
The LBB 1938/20 is a 480W, 3U rack-mounted power amplifier that can operate on mains power or 24VDC backup power. It has dual balanced audio inputs, 70V/100V constant voltage outputs, and an 8 ohm output. Additional features include priority switching, output level meters, and monitoring of mains power, battery status, and overheating.
The LBB 1925/10 is a six-zone pre-amplifier that can operate in single or dual channel mode for simultaneous calls and background music across six zones. It has inputs for microphones, background music, emergency signals, and triggers. Zone selection buttons control the routing of background music or calls to the zones. It provides priority overrides and relay-controlled zone switching of amplifier outputs.
The LBB 1935/20 is a 240W, 2U rack-mounted power amplifier that can operate on mains power or 24V battery backup. It has dual balanced line inputs, 70V/100V constant voltage outputs, and an 8 ohm output. Additional features include temperature monitoring, overload protection, and supervision of mains power and battery status.
The LBB 1930/20 is a 120W, 2U rack-mounted power amplifier with dual inputs, 70V/100V and 8 ohm outputs, and backup battery support. It provides priority switching between its two inputs and has monitoring of key functions. The compact unit is suitable for a wide range of public address applications.
The LBB 1957/00 Plena Voice Alarm Keypad is an extension to the LBB 1956/00 Plena Voice Alarm Call Station that adds seven additional zone selection keys. It connects to the call station and allows selection of up to seven additional zones or zone groups. Up to eight keypads can be connected to a single call station. The keypad uses LED indicators to show the active zones and has a durable metal base for tabletop or flush mounting.
The LBB 4440/00 Supervision Control Board monitors multiple loudspeaker and line supervision boards without additional cabling. It can control up to 80 boards and is compatible with 100V and 70V speaker lines. The board detects open circuit faults and is certified for use in Europe, Poland, and maritime applications.
The Plena Loop Amplifier is designed to drive an induction loop installed in floors or ceilings, covering up to 600 square meters. It has two microphone/line inputs, a priority input, and controls for tone, limiting, and automatic gain. The amplifier integrates into EN 54-16 and EN 60849 compliant emergency systems and provides supervision of key functions.
The AZBDC40A8 is a PWM servo drive designed to drive brushless and brushed DC motors. It can provide a peak current of 40A and continuous current of 20A, with a supply voltage range of 10-80VDC. The drive is fully protected against over-voltage, over-current and other faults. It interfaces with digital controllers using PWM and direction inputs to control motor speed and direction.
The document describes the AMP1-S8-3G 8-channel audio monitor, which provides premium quality monitoring of analog, AES/EBU, and 3G/HD/SD-SDI audio formats. It features 8 LED bar graph meters, focused sound through 3 speakers, and magnetic shielding. The compact monitor is well-suited for space-critical environments like studios and mobile production vehicles.
The PLN-1EOL Plena End-of-Line Board monitors loudspeaker lines for a 20kHz pilot tone signal and activates an LED and switch contact when the signal is detected. Multiple boards can be daisy chained to a single fault input to monitor multiple zones. The board connects to the end of a loudspeaker line and detects the presence of the pilot tone signal to ensure integrity of the line.
The document provides product descriptions for various components of the RPS (Remote Power Supply) system, including:
1) The central office (CO) unit which enables power transfer of up to 100W via twisted pair channels at a source voltage of ±190V.
2) Remote power (RP) units like the MRODx shelf that houses DC/DC converters and control units to provide up to 900W of output power.
3) DC/DC converter modules like the PDL that combine three converters to supply 45-75W per twisted pair at input voltages from 230-380V.
The document summarizes basic amplifier models from Bosch's PRS-xBxxx series. It describes four models - the PRS-1B500 (1 channel, 500W), PRS-2B250 (2 channels, 250W each), PRS-4B125 (4 channels, 125W each) and PRS-8B060 (8 channels, 60W each). The amplifiers provide basic amplification without digital processing, connecting to a PRS-16MCI interface for audio and control. They have redundancy options and can operate on mains or backup battery power.
The AZBDC60A8 is a PWM servo drive designed to drive brushless and brushed DC motors. It can provide up to 60A of peak current and 30A of continuous current, and operates from a 10-80VDC power supply. The drive provides motor commutation and protection from overvoltage, undervoltage, overcurrent, and other fault conditions. It interfaces with digital controllers using PWM and direction inputs.
The AZBDC25A20 is a PWM servo drive designed to drive brushless and brushed DC motors. It has a peak current of 25A, continuous current of 12.5A, and operates on a supply voltage of 40-175VDC. The drive provides motor control and protection from over/under voltage, overcurrent, and overheating. It interfaces with digital controllers using PWM and direction inputs.
The BlueOptics BO31J15680DC is a high performance 10Gbps optical receiver module that is fully compliant with XFP MSA standards. It supports transmission distances up to 80km on single mode fiber and provides real-time diagnostic monitoring of parameters like supply voltage, temperature, and received optical power. The module consists of a photodiode, transimpedance amplifier, laser driver, and digital diagnostic functions. It is hot-pluggable and offers industrial temperature ranges from -40C to 85C.
The AZB25A20 analog servo drive is designed to drive brushless and brushed DC motors. It has a peak current of 25A, continuous current of 12.5A, and operates on a supply voltage of 40-175VDC. It provides protection against overvoltage, undervoltage, overcurrent, overheating and short circuits. The drive can be directly integrated into PCBs and interfaces with digital controllers that have analog ±10V outputs.
The AZB40A8 is an analog servo drive designed to drive brushless and brushed DC motors. It has a peak current of 40A, continuous current of 20A, and operates on a 10-80VDC power supply. The drive provides hardware protections and supports hall sensor feedback and trapezoidal commutation for three phase brushless motors or single phase brushed motors.
The document describes an XFP 10G 1310nm optical receiver module that operates at 10Gbps over 10km of single mode fiber. It provides high-speed data transmission compliant with industry standards for applications such as Ethernet, Fibre Channel, SONET, and SDH. The module has diagnostic capabilities to monitor operating parameters and comes with a 5-year warranty.
The document describes the Analog Servo Drive AZBH10A20, which is designed to drive brushless and brushed DC motors. It can provide up to 10A of peak current and 6A of continuous current, operating from 40-175VDC. The drive has features like four quadrant regenerative operation, direct PCB integration, fault monitoring, and supports Hall sensors or tachometers for feedback and various modes of operation.
The LBB 4433/00 Call Station Kit allows for custom call stations with 16 keypads. It has a built-in speech filter and limiter for clear audio, supports redundant networking, and can make emergency calls even if the network controller fails. The kit includes connectors and can be extended with numeric keypads.
The AZB10A20 servo drive is designed to drive brushless and brushed DC motors at high switching frequencies. It has a peak current of 10A, continuous current of 6A, and operates on a supply voltage of 40-175VDC. The drive provides hardware protections and can interface with digital controllers through analog ±10V inputs and outputs.
RFID PROJECTS ABSTRACT LIST-Rfid based access control and staff attendence ma...ASHOKKUMAR RAMAR
This document discusses an RFID-based access control and student attendance management system. It uses RFID cards and a PIC microcontroller for user authentication. After validation, the user's entry time is logged to a database. Administrators can generate reports on student attendance. The system provides secure access control while monitoring entries and exits at access points.
The AZBH6A8 is a PWM servo drive designed to drive brushless and brushed DC motors. It can provide up to 6A of peak current and 3A of continuous current. It interfaces with digital controllers using a ±10V analog command input and includes protections against overvoltage, overcurrent, and other faults. The drive requires only a single unregulated DC power supply between 20-80V.
The AZB60A8 is a PWM servo drive designed to drive brushless and brushed DC motors at high switching frequencies. It has a peak current of 60A, continuous current of 30A, and operates on a 10-80VDC power supply. The drive provides hardware protections and supports hall sensors, trapezoidal commutation, and ±10V analog command input.
This document summarizes a PRS-16MCI multichannel interface that connects up to 16 audio channels between a Praesideo network controller and basic amplifiers. It monitors the amplifiers for faults and can activate spare amplifiers. The interface provides redundant network connections and failsafe operation to ensure emergency calls can still be made even if the unit or amplifiers fail.
This document provides a summary of the PLE-1MAxx0-EU Plena Mixer Amplifier. It has 4 microphone/line inputs, 3 music source inputs, and can output 30, 60, or 120 watts of power. It offers features like ducking, priority switching between inputs, and an emergency override. The amplifier is designed for professional public address systems and includes controls, connections, and filters to enhance voice clarity and customize settings.
The LBB 1920/00 Plena Universal Pre-Amplifier is a versatile unit with 4 input channels that can be used for microphones or line-level sources. Each channel has independent volume, tone, and filtering controls and a direct output. Channels can be prioritized or mixed, and the unit can cascade with additional preamps. An emergency input overrides other channels and triggers external equipment. The preamp provides balanced connections, phantom power, and backup power for driving relays.
The LBB 4442/00 Line Supervision Set allows for supervision of a single loudspeaker line without additional cabling. It contains a master unit that mounts in a Bosch power amplifier and a slave unit that mounts in the last loudspeaker. The set detects open circuit faults on the line within 100 seconds and is compatible with 70V and 100V loudspeaker systems.
The Plena Loop Amplifier is designed to drive an induction loop installed in floors or ceilings, covering up to 600 square meters. It has two microphone/line inputs, a priority input, and controls for tone, limiting, and automatic gain. The amplifier integrates into EN 54-16 and EN 60849 compliant emergency systems and provides supervision of key functions.
The AZBDC40A8 is a PWM servo drive designed to drive brushless and brushed DC motors. It can provide a peak current of 40A and continuous current of 20A, with a supply voltage range of 10-80VDC. The drive is fully protected against over-voltage, over-current and other faults. It interfaces with digital controllers using PWM and direction inputs to control motor speed and direction.
The document describes the AMP1-S8-3G 8-channel audio monitor, which provides premium quality monitoring of analog, AES/EBU, and 3G/HD/SD-SDI audio formats. It features 8 LED bar graph meters, focused sound through 3 speakers, and magnetic shielding. The compact monitor is well-suited for space-critical environments like studios and mobile production vehicles.
The PLN-1EOL Plena End-of-Line Board monitors loudspeaker lines for a 20kHz pilot tone signal and activates an LED and switch contact when the signal is detected. Multiple boards can be daisy chained to a single fault input to monitor multiple zones. The board connects to the end of a loudspeaker line and detects the presence of the pilot tone signal to ensure integrity of the line.
The document provides product descriptions for various components of the RPS (Remote Power Supply) system, including:
1) The central office (CO) unit which enables power transfer of up to 100W via twisted pair channels at a source voltage of ±190V.
2) Remote power (RP) units like the MRODx shelf that houses DC/DC converters and control units to provide up to 900W of output power.
3) DC/DC converter modules like the PDL that combine three converters to supply 45-75W per twisted pair at input voltages from 230-380V.
The document summarizes basic amplifier models from Bosch's PRS-xBxxx series. It describes four models - the PRS-1B500 (1 channel, 500W), PRS-2B250 (2 channels, 250W each), PRS-4B125 (4 channels, 125W each) and PRS-8B060 (8 channels, 60W each). The amplifiers provide basic amplification without digital processing, connecting to a PRS-16MCI interface for audio and control. They have redundancy options and can operate on mains or backup battery power.
The AZBDC60A8 is a PWM servo drive designed to drive brushless and brushed DC motors. It can provide up to 60A of peak current and 30A of continuous current, and operates from a 10-80VDC power supply. The drive provides motor commutation and protection from overvoltage, undervoltage, overcurrent, and other fault conditions. It interfaces with digital controllers using PWM and direction inputs.
The AZBDC25A20 is a PWM servo drive designed to drive brushless and brushed DC motors. It has a peak current of 25A, continuous current of 12.5A, and operates on a supply voltage of 40-175VDC. The drive provides motor control and protection from over/under voltage, overcurrent, and overheating. It interfaces with digital controllers using PWM and direction inputs.
The BlueOptics BO31J15680DC is a high performance 10Gbps optical receiver module that is fully compliant with XFP MSA standards. It supports transmission distances up to 80km on single mode fiber and provides real-time diagnostic monitoring of parameters like supply voltage, temperature, and received optical power. The module consists of a photodiode, transimpedance amplifier, laser driver, and digital diagnostic functions. It is hot-pluggable and offers industrial temperature ranges from -40C to 85C.
The AZB25A20 analog servo drive is designed to drive brushless and brushed DC motors. It has a peak current of 25A, continuous current of 12.5A, and operates on a supply voltage of 40-175VDC. It provides protection against overvoltage, undervoltage, overcurrent, overheating and short circuits. The drive can be directly integrated into PCBs and interfaces with digital controllers that have analog ±10V outputs.
The AZB40A8 is an analog servo drive designed to drive brushless and brushed DC motors. It has a peak current of 40A, continuous current of 20A, and operates on a 10-80VDC power supply. The drive provides hardware protections and supports hall sensor feedback and trapezoidal commutation for three phase brushless motors or single phase brushed motors.
The document describes an XFP 10G 1310nm optical receiver module that operates at 10Gbps over 10km of single mode fiber. It provides high-speed data transmission compliant with industry standards for applications such as Ethernet, Fibre Channel, SONET, and SDH. The module has diagnostic capabilities to monitor operating parameters and comes with a 5-year warranty.
The document describes the Analog Servo Drive AZBH10A20, which is designed to drive brushless and brushed DC motors. It can provide up to 10A of peak current and 6A of continuous current, operating from 40-175VDC. The drive has features like four quadrant regenerative operation, direct PCB integration, fault monitoring, and supports Hall sensors or tachometers for feedback and various modes of operation.
The LBB 4433/00 Call Station Kit allows for custom call stations with 16 keypads. It has a built-in speech filter and limiter for clear audio, supports redundant networking, and can make emergency calls even if the network controller fails. The kit includes connectors and can be extended with numeric keypads.
The AZB10A20 servo drive is designed to drive brushless and brushed DC motors at high switching frequencies. It has a peak current of 10A, continuous current of 6A, and operates on a supply voltage of 40-175VDC. The drive provides hardware protections and can interface with digital controllers through analog ±10V inputs and outputs.
RFID PROJECTS ABSTRACT LIST-Rfid based access control and staff attendence ma...ASHOKKUMAR RAMAR
This document discusses an RFID-based access control and student attendance management system. It uses RFID cards and a PIC microcontroller for user authentication. After validation, the user's entry time is logged to a database. Administrators can generate reports on student attendance. The system provides secure access control while monitoring entries and exits at access points.
The AZBH6A8 is a PWM servo drive designed to drive brushless and brushed DC motors. It can provide up to 6A of peak current and 3A of continuous current. It interfaces with digital controllers using a ±10V analog command input and includes protections against overvoltage, overcurrent, and other faults. The drive requires only a single unregulated DC power supply between 20-80V.
The AZB60A8 is a PWM servo drive designed to drive brushless and brushed DC motors at high switching frequencies. It has a peak current of 60A, continuous current of 30A, and operates on a 10-80VDC power supply. The drive provides hardware protections and supports hall sensors, trapezoidal commutation, and ±10V analog command input.
This document summarizes a PRS-16MCI multichannel interface that connects up to 16 audio channels between a Praesideo network controller and basic amplifiers. It monitors the amplifiers for faults and can activate spare amplifiers. The interface provides redundant network connections and failsafe operation to ensure emergency calls can still be made even if the unit or amplifiers fail.
This document provides a summary of the PLE-1MAxx0-EU Plena Mixer Amplifier. It has 4 microphone/line inputs, 3 music source inputs, and can output 30, 60, or 120 watts of power. It offers features like ducking, priority switching between inputs, and an emergency override. The amplifier is designed for professional public address systems and includes controls, connections, and filters to enhance voice clarity and customize settings.
The LBB 1920/00 Plena Universal Pre-Amplifier is a versatile unit with 4 input channels that can be used for microphones or line-level sources. Each channel has independent volume, tone, and filtering controls and a direct output. Channels can be prioritized or mixed, and the unit can cascade with additional preamps. An emergency input overrides other channels and triggers external equipment. The preamp provides balanced connections, phantom power, and backup power for driving relays.
The LBB 4442/00 Line Supervision Set allows for supervision of a single loudspeaker line without additional cabling. It contains a master unit that mounts in a Bosch power amplifier and a slave unit that mounts in the last loudspeaker. The set detects open circuit faults on the line within 100 seconds and is compatible with 70V and 100V loudspeaker systems.
The document summarizes two Plena amplifier models, the PLE-1P120-EU and PLE-1P240-EU. The amplifiers provide 120W and 240W respectively to constant voltage or 8 ohm loads. They have 1V and 100V line inputs, and 70V, 100V, and 8 ohm outputs. Protections include overload and short circuit protection, with temperature controlled cooling. Both models operate on mains power with a 24V battery backup that charges automatically.
The LBB 4443/00 board monitors the integrity of loudspeaker lines without additional cabling. It detects open circuit faults and is powered by the connected amplifier. It works with the LBB 4440/00 board to monitor line status via the speaker cable. The LBB 4443/00 mounts in the last speaker case to supervise branches and detect faults within 100 seconds.
The LBB 1930/20 is a 120W power amplifier in a compact 2U housing. It has dual balanced line inputs with priority switching, 70V/100V and 8 ohm outputs, and can operate on mains power or 24V battery backup. The amplifier provides temperature controlled ventilation and monitoring of key functions for reliable emergency communications system use.
The LBB 1930/20 is a 120W power amplifier in a compact 2U housing. It has dual balanced line inputs with priority switching, 70V/100V and 8 ohm outputs, and can operate on mains power or 24V battery backup. The amplifier provides temperature controlled ventilation and monitoring of key functions for reliable emergency communications system use.
The LBB 4404/00 CobraNet Interface allows for bidirectional digital audio transmission between a Praesideo audio system and a CobraNet network using Ethernet. It can interface up to four audio channels in each direction, converting between sample rates, while also routing eight control inputs and five control outputs. The interface supports redundant networking and local audio monitoring and status checks.
The MixPre is a portable, two-channel stereo microphone preamplifier and mixer. It has high-quality audio performance with features like adjustable gain, pan controls, a built-in slate microphone, tone oscillator, and headphone monitoring. The MixPre is designed for field production use with its compact size, rugged construction, and ability to run on batteries or external power. It provides studio-quality audio in a portable device suitable for radio, television, film, and other field applications.
The document provides information about the MixPre portable mixer, including:
- It is a two-channel portable stereo microphone preamplifier and mixer with features like pan switches, a built-in slate microphone, tone oscillator, and headphone monitoring.
- It has high quality microphone inputs with up to 66dB of gain, premium input transformers, and adjustable limiters to prevent clipping.
- Other features include seven segment LED meters, adjustable high pass filters, phantom power, and the ability to run on batteries or external power.
- Technical specifications are provided for aspects like frequency response, dynamic range, gain, output levels, and power requirements.
The LBB 4441/00 Loudspeaker Supervision Board monitors the integrity of loudspeakers and detects open circuit faults without additional cabling. It communicates the status of monitored loudspeakers to the LBB 4440/00 Supervision Control Board via existing loudspeaker cables and can detect speaker or line faults within 100-300 seconds. The supervision board is mounted internally in compatible loudspeaker models and powered via the loudspeaker line.
The Plena Voice Alarm Controller is the central controller for the Plena Voice Alarm System. It has built-in amplification and supports up to six zones, with additional routers allowing expansion to 60 zones. It stores and plays emergency messages, provides background music, and interfaces with call stations. The controller complies with EN 60849 and EN 54-16 standards for voice alarm systems.
The Plena feedback suppressor uses a patented algorithm to suppress acoustic feedback before it occurs. It can provide up to 12 dB of additional gain before feedback by filtering out unwanted room reverberations. It has inputs for two microphones and an automatic mixer that maintains feedback suppression as the microphones move.
The document describes the LC2-PC60G8-8H premium-sound high ceiling loudspeaker. It is an 8-inch two-way speaker with a waveguide coupled tweeter, full bandwidth overload protection, and front baffle wattage tap adjustment. It provides wide dispersion, high efficiency, high maximum output, and ease of installation. It is designed for use in voice alarm systems and compliant with British and European safety standards.
The call station keypad kit can be used with a call station kit or basic call station to make announcements or trigger predefined actions. It has 8 programmable inputs linked to 16 outputs and 2 serial interfaces to connect up to 16 keypads to a call station. The keypad gets power from the connected call station and its inputs can be programmed for different operation modes.
The call station keypad kit can be used with a call station kit or basic call station to make announcements or trigger predefined actions. It has 8 programmable inputs linked to 16 outputs and 2 serial interfaces to connect up to 16 keypads to a call station. The keypad gets power from the connected call station and its inputs can be programmed for different operation modes.
The Plena Six-zone Call Station is a call station that can make calls to six zones or all-call in a public address system connected to an LBB 1925/10 pre-amplifier. It has a metal base, flexible microphone stem, and unidirectional condenser microphone. Key features include six zone selection keys, all-call key, selectable gain, speech filter, limiter, and LED indicators for zone selection and system status.
The VP-23RC is a 4x1 video and audio switcher and universal room controller. It can switch between 4 composite video, 4 S-video, and 4 computer graphics video inputs, each with balanced stereo audio. It also controls audio and video components as well as room facilities like lights and screens. It has features like high bandwidth support for various video signals, audio level controls, a built-in audio amplifier, and flexible control options through its front panel, software, Ethernet, and included remote control unit.
The VP-23RC is a 4x1 video and audio switcher and universal room controller. It can switch between 4 composite video, 4 S-video, and 4 computer graphics video inputs, each with balanced stereo audio. It also controls audio and video components as well as room facilities like lights and screens. It has features like high bandwidth support for HDTV and UXGA resolutions, audio level controls, a built-in audio amplifier, and flexible control options through the front panel, software, Ethernet, and included remote control.
Electronic circuits include a diode, a BJT (Bipolar Junction Transistor), and a FET (Field Effect Transistor). In this presentation, we briefly summarize the most important characteristics of the diode, transistor, amplifier, filter, and mixer.
This document provides information about audio and video products from Sonifex for radio and television broadcasters, including distribution amplifiers. It summarizes new products and updates to their 2010/11 catalog. Specifically, it describes the RB-DA6R and RB-DA6RG 6-way stereo distribution amplifiers that split an audio source to multiple outputs using RJ45 connectors according to the StudioHub+ standard, and the RB-DDA22 digital audio distribution amplifier that accepts one of five digital inputs and outputs to 22 digital outputs using various connector types.
The PLN-DMY60 Plena Dummy Load is designed to improve the reliability of loudspeaker line impedance measurements for the Bosch Plena Voice Alarm System. It connects to the last loudspeaker on a line and provides a filtered electrical load at 20 kHz, allowing longer cable runs before cable capacitance starts interfering with measurements. It has settings for 8, 20, and 60 watt loads. A calculator helps determine the optimal dummy load setting for a given system configuration.
The PLN-2AIO120 is an all-in-one background music and paging system that includes a DVD/CD player, FM/AM tuner, microphone inputs, and dual-zone amplifier. It provides versatile playback of audio and video content for background music and announcements. Key features include MP3/video playback from discs, an FM/AM radio, priority microphone input, and separate volume control for two speaker zones.
This document summarizes the key features and specifications of the Bosch Plena Mixer Amplifier PLE-1MAxx0-EU. It has 4 microphone/line inputs, 3 music source inputs, and provides 30, 60, or 120 watts of output power. It offers priority and VOX activation on inputs, separate music volume control, detachable labeling, and integration with telephone paging systems. Installation is simplified with included mounting brackets and the amplifier can be configured via front panel controls and dip switches.
The PLE-1CS is a tabletop microphone intended for making calls in a public address system. It has a metal base and rubber feet for stability, and can be flush mounted. It uses a PTT button to activate the microphone, which can be configured for momentary or toggle mode. It has a 2m cable, LED indicator, and connects to amplifiers using a 5-pin Euro connector. The microphone is high quality, durable, and phantom powered.
This document provides information on the LBB 9600/20 condenser handheld microphone from Bosch. It is a unidirectional microphone intended for use in public address and sound reinforcement applications. Key features include a condenser transducer, low sensitivity to noise and vibrations, and phantom power supply. Accessories such as extension cables, stands, and mounts are also available.
The LBB 1949/00 is a high-quality gooseneck condenser microphone with a flexible stem that runs on phantom power. It has a unidirectional pickup pattern and includes a 2m cable and lockable connector. The microphone can be mounted on floors, lecterns, or desktops using its threaded base and included adapter. It has a sliding on/off switch and priority contacts for remote control.
The LBC 1215/01 Microphone Clamp is a quick-release, spring-loaded microphone holder that can be screwed onto stands with 3/8", 1/2" or 5/8" threads. It holds microphone stems measuring 19 to 32 mm in diameter and allows for friction angular adjustment. The clamp weighs 60 grams and has a matte black color. It is compatible with Bosch hand-held microphones.
The document summarizes a unidirectional handheld microphone made by Bosch. It has a dynamic transducer element, cardioid directivity, and rugged construction. It can be used either handheld or stand-mounted. It is intended for use in applications like shops, restaurants, and leisure centers to provide affordable public address solutions.
The document summarizes a range of Bosch volume controls and program selectors for public address systems. It describes the different models, their power ratings and features like failsafe operation. Diagrams show dimensions and wiring. The controls allow adjusting sound levels or selecting programs, and ensure emergency announcements are heard at a preset level.
The document provides information on Bosch volume controls and program selectors for public address systems in Japan. It describes the LBC 14x2/x0 volume controls, which come in 12W and 36W versions and power-save or failsafe options. It also describes the LBC 1434/10 program selector, which allows selecting between 5 channels. The components comply with international safety standards and have applications in both announcements and background music distribution in public settings.
The document summarizes Bosch's LBC 14x2/x0 Japanese Volume Controls and LBC 1434/10 Program Selector. The volume controls come in 12W and 36W versions and can be configured for power-saving or fail-safe operation. The program selector allows selection of up to five audio channels. Both products comply with international safety standards and provide simple installation, operation, and reliability for public address systems.
The document summarizes a range of Bosch volume controls and program selectors for public address systems. It describes the different models, their power ratings and features. The volume controls come in 12W, 36W and 100W versions and can be configured for power-save or fail-safe operation. The program selector allows selecting between five programs. Technical specifications and ordering information is also provided.
The PRS-SWCS PC Call Server and PRS-SWCSL PC Call Server NCO Client allow control of multiple Praesideo network controllers and connected clients over TCP/IP. The PRS-SWCS PC Call Server controls user access and call functions, while the PRS-SWCSL extends licensing to additional network controllers. Configured views, predefined calls, and audio connections between networks can be set up through the included configuration client.
The Praesideo software allows users to configure and monitor a Bosch communications system through a web-based interface. It includes configuration, diagnostic, and file transfer software. The configuration software can be accessed at different privilege levels and is used to define system parameters, call macros, zones, equipment settings, and more. The diagnostic software logs events and fault information for monitoring the system status. File transfer software manages uploading and downloading files to the network controller.
The network splitter provides two branches from the main cable run to feed power and network connections to Praesideo units. It supports redundant network connections, can supply power from an external source, and has indicators for power and fault status. The splitter inserts units into the main network without redundancy but allows separate selection of current for each tap-off.
The PRS-FIN, PRS-FINNA, and PRS-FINS fiber interfaces connect glass fiber optic cable to plastic fiber optic cable within Praesideo communication systems. They convert between the cable types and support redundant network connections. Each interface provides power and status indicators and includes two control inputs, except for the PRS-FINNA which lacks a network address and control inputs.
The document appears to be a price list from Sathit A.V.L.Supplies Co.,Ltd. for microphones, wireless microphone systems, mixing amplifiers, loudspeakers and other audio equipment. It includes product codes, descriptions, and prices excluding VAT for various microphones, mixers, amplifiers, loudspeakers and other audio equipment.
The PRS-CSR is a remote call station that connects to a Praesideo network via CAT-5 cable up to 1 km long. It uses standard Praesideo keypads and interfaces with the network through a PRS-CSI unit. The remote call station provides the same functionality as a basic call station and can be powered via CAT-5 cable or a local power supply.
The numeric keypad connects to a call station to allow for user access and zone selection via a 12-button keypad. It receives power from the call station and can be combined with up to 15 other keypads. The LCD provides feedback to the user about their selections and the system status. It has a flat cable connection and mechanical mounting to the call station.
The PRS-CSI is an interface that connects a remote call station to a Praesideo network via CAT-5 cable up to 1 km. It is powered by the network or a local power supply and includes two supervised inputs, built-in audio processing, and full supervision of the unit. The interface connects a single remote call station and supports high quality audio transmission with fail-safe emergency calling capabilities.
1. Communications Systems | LBB 442x/xx Power Amplifiers
LBB 442x/xx Power Amplifiers
▶ 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
▶ Supervision of line attached to control inputs
▶ Automatic volume control
▶ Two audio inputs (4 audio inputs for LBB 4428/00)
▶ Redundant network connection
There are four types of power amplifier units in the The units are self-monitoring and continually report their
Praesideo product range. These differ in the number of status to the network controller. They support both single
amplifier channels per frame: one, two, four, or eight. The branch and redundant loop cabling. The amplifiers have a
overall power rating is 500 watts for all of the amplifiers. changeover facility for spare power amplifier switching.
The power amplifiers can be set to 100 V, 70 V and 50 V Changeover relays are included with the units. The
output tappings. They have short-to-ground and short- amplifiers have a 48 V DC back-up supply input.
circuit detection functions, and can generate their own The digital audio processing can handle three parametric
pilot tone for supervision purposes. equalization sections and two shelving equalization
sections per channel with configurable audio delay.
Controls and indicators
Functions • 2 x 16-character LCD for status display
The power amplifiers receive input signals over the • Rotary/push control button
network. They also have two auxiliary audio inputs (four
• Mains switch
Interconnections
for LBB 4428/00) for local audio. Their eight control
inputs are freely programmable for system actions, and • Mains input
priorities can be assigned to these inputs. Each control
• Battery backup input
• Two system network connections
input has the ability to monitor the attached line for open • Two mic/line inputs (four for LBB 4428/00)
and short-circuits. Control outputs are freely • 100 V, 70 V or 50 V outputs (for each amplifier
programmable for faults and call related actions. channel)
• 50 V output
The 2 x 16-character display and the rotary control enable • Eight programmable control inputs
local status enquiries. The display shows the VU-meter • Control output (for each amplifier channel)
reading, when the audio monitoring mode is active. Audio • Headphone output
can be monitored by headphone. • Spare amplifier connection (for each amplifier
channel)
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2. 2 | LBB 442x/xx Power Amplifiers
Certifications and Approvals
Region Certification
Europe CE CE
Traction
TUEV- TUV Certificate IEC60849
SUED
GL GL-SOLAS
Safety acc. to IEC 60065-98 Rear view of LBB 4421/10 Power Amplifier 1 x 500 W
Immunity acc. to EN 55103‑2 / EN 50130‑4
Emissions acc. to EN 55103-1 / FCC-47part 15B
EVAC (TÜV certified) acc. to IEC 60849
Installation/Configuration Notes
9 4
1
5 Rear view of LBB 4422/10 Power Amplifier 2 x 250 W
10
2 6
3 11
7
12 Rear view of LBB 4424/10 Power Amplifier 4 x 125 W
8
1 Audio inputs, 2 x or 4 x
2 Control inputs
3 Plastic optical fiber network
4 Loudspeaker outputs, 1 x, 2 x, 4 x, 8 x
5 Spare amplifier input
6 Control outputs, 1 x, 2 x, 4 x, 8 x
7 Mains input
8 48 V backup supply Rear view of LBB 4428/00 Power Amplifier 8 x 60 W
9 Display and control
10 Network processor and DSP
11 Network redundancy switching
12 Power supply
3. LBB 442x/xx Power Amplifiers | 3
Parts Included Mic/line inputs 2 x (4 x for LBB 4428/00)
Phantom supply 12 V ±1 V @ 15 mA
Quantity Component
Input range -7 dBV to +8 dBV ref nominal input value
1 LBB 442x/xx Power Amplifier
1 Power cord Control inputs 8x
1 Set of mounting brackets (large) for 19” rack Connectors Removable screw terminals
1 Set of feet Operation Closing contact (with supervision)
1 Set of connectors Control outputs 1 x per amplifier channel
Connectors Removable screw terminals
Loudspeaker outputs LBB 4421/10
Technical Specifications
Rated load resistance 20 ohm (100 V); 10 ohm (70 V)
Electrical
Rated load capacitance 250 nF (100 V); 500 nF (70 V)
Mains power supply Rated output power 500 W (1 min. at 55 °C)
(per channel) 250 W (30 min. at 55 °C, cont. at 30 °C)
Voltage 100 to 240 VAC ±10%, 50/60 Hz
Power consumption Pmax -3 dB* / idle** / standby 125 W (cont. at 55 °C)
LBB 4421/10 404 / 56 / 28 W
Loudspeaker outputs LBB 4422/10
LBB 4422/10 402 / 60 / 28 W
Rated load resistance 40 ohm (100 V); 20 ohm (70 V)
LBB 4424/10 426 / 83 / 37 W
Rated load capacitance 125 nF (100 V); 250 nF (70 V)
LBB 4428/00 433 / 90 / 32 W
Rated output power 250 W (1 min. at 55 °C)
* Alarm tone level (per channel) 125 W (30 min. at 55 °C, cont. at 30 °C)
** With pilot tone 15 V
60 W (cont. at 55 °C)
Battery power supply
Loudspeaker outputs LBB 4424/10
Voltage 48 VDC -10% to +20%
Rated load resistance 80 ohm (100 V); 40 ohm (70 V)
Power consumption Pmax -3 dB* / idle** / standby
Rated load capacitance 60 nF (100 V); 125 nF (70 V)
LBB 4421/10 380 / 46 / 20 W
Rated output power 125 W (1 min. at 55 °C)
LBB 4422/10 378 / 50 / 21 W
(per channel) 60 W (30 min. at 55 °C, cont. at 30 °C)
LBB 4424/10 399 / 76 / 28 W
30 W (cont. at 55 °C)
LBB 4428/00 397 / 63 / 22 W
* Alarm tone level Loudspeaker outputs LBB 4428/00
** With pilot tone 15 V
Rated load resistance 160 ohm (100 V); 80 ohm (70 V)
Mic/line inputs 2 x (4 x for LBB 4428/00) Rated load capacitance 30 nF (100 V); 60 nF (70 V)
Connector 6-pole header for removable screw con- Rated output power 60 W (1 min. at 55 °C)
nector (mono, balanced) (per channel) 30 W (30 min. at 55 °C, cont. at 30 °C)
Line 15 W (cont. at 55 °C)
Frequency response -3 dB @ 50 Hz and 20 kHz (±1 dB) Connectors 9-pole header for removable screw con-
S/N >87 dBA nector
CMRR >40 dB @ 1 kHz Frequency response 60 Hz (80 Hz for LBB 4428/00) to 19 kHz
(-3 dB)
Input range -6 dBV to 6 dBV
S/N >85 dB (no pilot tone)
Input impedance 22 kohm
Crosstalk <80 dB at nominal load for 1 kHz
Mic
Distortion <0.3% (@ 1 kHz) @ 50% of rated output
Frequency response -3 dB @ 100 Hz and 16 kHz
power
Nominal input level -57 dBV
S/N >62 dBA with 25 dB headroom
CMRR 40 dB at 1 kHz
Input impedance 1360 ohm
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