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Hifi amplifier - HiFi amplifiers process an audio signal from an external source (CD player, television or radio), so that all sounds can be played with increased power through the speakers connected. Whereas a mono amplifier only amplifies the signal of one channel, a stereo amplifier consists of a two-channel pre amp and power amp for the left and right channel. In HiFi amplifiers the built-in components are essential for the performance. Thus, depending on the price of the hi-fi amplifier and the desired application, digital or analog power supply units, are used. eibabo offers HiFi amplifiers from different manufacturers such as Huber + sons or Jung. The devices offered are available in different amplifier types: preamplifiers, power amplifiers, multi-channel amplifiers and KNX multi-room amplifiers for the EIB / KNX bus. The hi-fi amplifiers we offer are characterized by a solid architecture with high-quality, shielded and constant power transformers. The devices have precise circuits for minimum noise and maximum overmodulation resistance. Key performance figures that you should look for when buying hi-fi amplifiers are: power consumption, speaker load capacity, impedance and power of the amplifier. A multitude of possible connections is also important, as is the number of stereo inputs (NF signals) and loudspeaker outputs (NF signals) and the connection type (NF).Catalogue content:In this eibabo® catalogue Consumer electronics > HiFi Amplifier you will find items from the following product groups:Item overview:AmplifierAmplifiersAudio electronicsHiFi AmplifierIntegrated amplifierMixing amplifierPreampStanding devicefrom the following manufacturers:Manufacturer overview catalogue Hifi amplifier:Huber + Söhne WHDHuber + S?hne WHDJungKindermannLegrand BticinoUltraMedia
Radio transmitter - Would you like to automate an existing electrical installation at low cost without having to open walls and lay many lines or cables? Do you want to retrofit or expand your smart home? Then both radio transmitters and radio receivers belong on your shopping list. Find out more here about the possibilities that radio transmitters and radio receivers offer you. Radio technology has become an integral part of our everyday life. Think of radio signals, television and mobile phones, the Internet and many other things.WLAN or Wi-Fi?WLAN is a wireless radio network limited to a local area. Wi-Fi is more of a brand name of a consortium of companies (Wi-Fi Alliance). For example, devices labeled 'Wireless Fidelity' receive WiFi.In the field of radio transmitters, there are numerous device types and standards, such as Wi-Fi, Bluetooth, NFC and cellular.What are radio transmitters?A radio transmitter is an electronic device that generates radio waves. In the field of electrical engineering, the device mainly transmits control signals, switching signals, error messages and status messages. In telecommunications, radio transmitters are used to transmit or send data using an antenna. The transmitter converts the information into a high-frequency alternating current, which is radiated from an antenna as radio waves. Already knew?The Solt transmitter of the Hungarian 'Kossuth Rádió' is the most powerful radio transmitter in Europe. The program can be received in the USA and South Asia. Depending on the type of device, the radio waves are emitted in a specific band of the electromagnetic spectrum. The division into bands serves to fulfill a wide variety of communication tasks. This includes the transmission of voice, images or very general data. The transmitter uses the current of its power source to provide alternating current according to its bandwidth in the required wavelength. This is the frequency at which the alternating current changes direction per second. The electromagnetic waves or radio waves are radiated outwards as a weak signal via a carrier medium (e.g. the air) via the antenna. A corresponding receiver reverses this process and amplifies the incoming signal in order to be able to process the actual message or data. A transmitter can be a separate device or an electronic circuit in another device.Image: Eltako FSM61-UC wireless transmitter moduleHow is a radio transmitter structured?A radio transmitter requires an energy source that supplies the device with power and the energy for transmission. An electronic oscillator creates the radio waves and a modulator inserts the actual data into the radio wave. It does this through small variations in the properties of the carrier wave. A high-frequency amplifier increases the power of the signal. This increases the range. And finally, an antenna tuner matches the impedance of the transmitter to that of the antenna. This makes the energy transfer to the antenna efficient and prevents what is known as a 'standing wave' (reflection of the energy from the antenna back to the transmitter).How important are radio transmitters in building automation or the electrical installation?You use radio transmitters when there is no power line or bus line at a certain point in your installation. There you position a radio receiver, which receives the signals from the transmitter and takes over the desired tasks. These can be switching actions and control functions or the display of information. Radio transmitters are therefore an alternative when flexible installations are desired. Radio transmitters are also suitable if you want to retrofit existing analogue installations and device controls. Radio transmitters are a simple and inexpensive solution for home automation and are used to increase living comfort.You can get a large selection of radio transmitters in the eibabo® technology storefor flush mounting (radio transmitter modules, universal transmitter)for operation (radio buttons, KNX remote controls, hand-held transmitters)for control (wireless weather stations, multiple wall switches, room temperature controllers, wireless window contacts and other sensors) from all well-known manufacturers. These include top brands such as SOMFY, Rademacher, Warema Sonnen, Eltako, Schalk, Sommer and Jung. You will also receive devices and accessories from Hager, Eberle Controls, Berner Torantriebe and EVN Lichttechnik. We also offer elegant wall transmitters that are suitable for flexible installation on wallpaper, glass, mirrors, tiles or wood. Or you can select immediately functional wireless motion detectors, wireless switches or wireless sets from our range.What is the range of radio transmitters in electrical engineering?The range of radio transmitters can vary greatly. This depends both on the radio technology used and on the environmental conditions. Ranges between 20 meters and one kilometer are usually specified. The specifications in the product information about the maximum range are usually values under optimal conditions. These exist when there is a direct line of sight between the transmitter and receiver without obstacles and the area is not affected by interference signals from the same or a neighboring frequency band. Please keep in mind that these conditions rarely apply and the range will therefore be lower in practice. TIP:When installing radio transmitters, allow for a range reserve of 25%. The reserve is not only used to compensate for a lower range due to current obstacles. If further obstacles are added later (e.g. additional walls or growing trees), the devices can still be used.What is an I/O radio module?I/O radio modules are so-called transceivers, a combination of transmitter and receiver. These therefore have signal inputs and signal outputs. This makes it possible to control or monitor systems with just one radio link. In addition to digital interfaces, some models also offer analog inputs for transmitting sensor values and limit values.What do I have to consider when buying radio transmitters?If you want to use radio transmitters, you need additional receivers that pick up the signals, process them and react accordingly. This can be, for example, switching actuators, universal displays or radio-controlled sockets. To ensure that communication between transmitter and receiver works, all components are parameterized using the standardized 'Engineering Tool Software (ETS)'. In this way, each device knows under which conditions it should send or receive commands and how it has to react to changes. The ETS software is available from www.knx.org and is a tool that you need to commission and link KNX devices. Don't worry: programming skills are not required. The ETS is also suitable for laypersons who are interested in the logic of the KNX. Please make sure that your radio transmitter can take over the transmission tasks you want and carry them out correctly. We therefore recommend that you carefully check the parameters and functions for the ETS provided by the manufacturer before purchasing.  Catalogue content:In this eibabo® catalogue Optical and acoustic signalling equipment > Radio transmitter you will find items from the following product groups:Item overview:Access controlAdjustment toolAwning radio sensorBlind controlBuilt-in transmitterButton inputCall forwardingControl unitExternal controlFour-channel hand-held transmitterInterval transmitterMicrohand transmitterRadio remote controlRadio transmitterRain sensorReed contactRemote controlSecuritySetting aidShutter buttonSingle-channel hand-held transmitterSun protectionTransceiversUniversal transmitterWind automaticWindow contactWireless technologyWireless wall buttonfrom the following manufacturers:Manufacturer overview catalogue Radio transmitter:Berner TorantriebeBusch JaegerEberleEltakoEthermaEVNGiraGlen DimplexGrotheHagerHamaJungNovarPhoenixRademacherSchabusSchalkSchneider ElectricSiemensSomfySommerWAGO
Line backbone coupler - Would you like to expand your smart home system and are you looking for a way to integrate additional devices into the existing infrastructure? No problem. The strength of modern building automation lies precisely in this flexibility. In this catalogue, we present line area couplers with which you can expand the topologies of your network.Living, working, security and climate protection - building automation offers many advantages for modern households. In particular, the areas of 'living comfort' and 'energy management' are strongly influenced by the possibilities offered by modern communication media and control technology. Numerous functions in a building can be automated, from switching on the light and setting up needs-based heating cycles to organizing access control systems. It can be controlled from anywhere in the world using a computer or smartphone. When setting up simple and complex networks for the KNX building automation, line area couplers are used, among other things.How is a KNX network structured?Within a KNX network, we distinguish between segments that are networked with each other and have a hierarchical structure. The segments are called lines, main lines and areas. You can think of this as a tree whose trunk splits into branches and further into twigs. The branches represent the smallest unit and are called 'lines' in the KNX network. Each line consists of a KNX bus line, a power supply and the participants. A 'main line' would be the branch that connects several lines into an 'area'. The area line represents the trunk that connects multiple areas. A well-organized structure makes sense, especially for larger networks. Due to the structure in segments with different tasks and priorities, the system remains clear and can be expanded at any time.What is the main task of a line area coupler?To control data traffic, a line area coupler connects two KNX lines with each other. The device ensures galvanic isolation between the lines. This means that each KNX line can be operated electrically independently of the other lines. TIP:A separate KNX power supply is required for each line, main line or area line. Theoretically, 255 KNX participants can be integrated into one line. Due to the average power requirement of KNX devices, cable lengths and other limit value definitions, a maximum of 64 KNX participants (devices with bus coupler) are defined per line. For a standard single-family house, this is usually sufficient with optimal planning.What possible uses does a line area coupler offer?Line couplers or area couplers are also required to create larger KNX topologies with a large number of KNX devices. The smallest topology is a line, which is powered by a KNX power supply. A single line does not yet require a line coupler.At line levelWhen using a 640mA power supply, the number of participants can be significantly increased using line amplifiers. Line area couplers can take over this function. The newly created sub-line has its own KNX power supply and is connected to the existing line via a line amplifier for galvanic isolation. Since the ETS (Engineering Tool Software) allows more than 64 participants per line, the participants of the sub-line can be viewed as if they were in the actual line above.At the main line levelIn the case of extensions, an additional line is usually set up. This receives a 640mA power supply and is coupled to the first line using a line coupler. This line is called the main line. Of course, 64 participants can also be connected to the main line. Up to 15 lines can be connected to this main line. This represents the maximum value of an area. Additional extensions are now also implemented using line couplers (area couplers, depending on the assignment of the physical address and parameterization).At the area levelThe line that connects areas together is the backbone line. This means that up to 15 areas with several tens of thousands of KNX participants are possible. KNX IP routers can connect two KNX installations by means of communication via the routing protocol. This requires an existing network connection between the installations (buildings or parts of buildings). A KNX IP router can use the routing and tunneling protocols in parallel, while a KNX IP interface can only use tunneling.Image: ABB LK/S 4.2 line couplerClassic application examplesWith the use of line area couplers, you create well-functioning and optimally organized communication between the individual segments (lines, main lines, areas) of a system. Depending on the structure of a system, the individual segments can take on specific automatisms in the same room or perform special tasks via a network connection at different locations around the world. Examples for this are:the central control of the heating, ventilation and air conditioning for different workplaces in an office complexthe controlled compliance with necessary hygiene protocols in different parts of a hospital buildingthe implementation and monitoring of security concepts in a residential complex (locking systems, elevators, emergency exits, night lighting)the control of shading systems of global company branches based on the position of the sun, time zone and weather data The full rangeIn the eibabo® shop you can get all the items you need to set up simple or complex topologies. Put your components together using the search function or choose one of our complete packages.Our portfolio includes KNX line couplers and area couplers, KNX line amplifiers, KNX IP interfaces, KNX IP routers from the manufacturers ABB, Berker, Busch-Jaeger, EIBMARKT, Gira, Hager, Jung, Lingg & Janke, MDT, Merten, Siemens and Theben. On the subject of IP routers, please also visit the 'Interface-Media-Gateway' and 'Data Interface' catalogues.  Catalogue content:In this eibabo® catalogue Installation bus systems > Area/line coupler for bus system you will find items from the following product groups:Item overview:Area couplerArea couplingArea line couplerBus technologyDIN railsLine boosterLine couplerMedia couplerPower supplyRadio couplerStructural elementSystem deviceTemperature controlTemperature controllerfrom the following manufacturers:Manufacturer overview catalogue Line backbone coupler:ABBBusch JaegerESYLUXGiraHagerJungLingg & JankeMDTMertenSiemensTheben
Isolation amplifier - A large number of different isolation amplifiers are used in industrial applications to amplify, isolate, filter or convert signals. They use a transformer to create a galvanic isolation between two circuits and thus prevent electrical conduction, but at the same time allow an electrically isolated exchange of power or signals with each other. How exactly the electrical isolation is achieved and how the desired signal transmission is guaranteed depends on the design of the respective device and the required area of application. When choosing the right isolation amplifier, please also pay attention to the supply voltage, the operating frequencies and other electrical properties to ensure reliable function of this component. In the eibabo technology store you will find high-quality isolation amplifiers, temperature transducers, transmitter power supplies, signal converters and many other devices with correspondingly different specifications.Catalogue content:In this eibabo® catalogue Sensors > Isolation amplifier you will find items from the following product groups:Item overview:AmplifierAnalog separatorChangeover relayCold junction compensation converterCurrent measuring converterDisconnecting deviceInterface converterIsolating converterIsolation amplifierMiniature switching relayPlug-in relayPower converterProportional amplifierRelay moduleRelay terminalSignal changerSignal converterSignal hikerSignal isolation amplifierSignal separation componentStandard signal converterSwitching amplifierSwitching relayTemperature converterTemperature transmitterTransmitterVoltage converterVoltage transducerfrom the following manufacturers:Manufacturer overview catalogue Isolation amplifier:MurrelektronikPepperl + FuchsPhoenixRinckSchneider ElectricSiemensStahlWAGOWeidmüllerWeidm?ller
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RECOMMENDED
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STR - NH 200 TV - Amplifier - Power supply for intercom NH 200 TV
£83.78 incl. VAT (£0.00)

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Amplifier - Power supply for intercom
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STR - NH205TVM - Amplifier mute - Accessory for telecommunication NH205TVM
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Pepperl + Fuchs - KFD2-GUT-1.D - Temperature transmitter - Isolation amplifier KFD2-GUT-1.D
£349.79 incl. VAT (£0.00)

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Temperature transmitter - Isolation amplifier
Pepperl + Fuchs
| KFD2-GUT-1.D
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Pepperl + Fuchs - KFD2-SR2-Ex1.W - Switching amplifier 1 channel KFD2-SR2-Ex1.W
£136.05 incl. VAT (£0.00)

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Switching amplifier 1 channel
Pepperl + Fuchs
| KFD2-SR2-Ex1.W
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Metz - PT-C12 24VAC/DC - Interface module - Switching amplifier PT-C12 24VAC/DC
£43.62 incl. VAT (£0.00)

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plus shipping
(£86.83 RRP***)
Interface module - Switching amplifier
Metz
| PT-C12 24VAC/DC
RECOMMENDED
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Pepperl + Fuchs - KFD2-CRG2-1.D - Transmitter power supply - Isolation amplifier KFD2-CRG2-1.D
£285.99 incl. VAT (£0.00)

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Transmitter power supply - Isolation amplifier
Pepperl + Fuchs
| KFD2-CRG2-1.D
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Phoenix - MINI MCR-SL-UI-UI-NC - 3-way isolation amplifier MINI MCR-SL-UI-UI-NC
£208.86 incl. VAT (£0.00)

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plus shipping
(£310.80 RRP***)
3-way isolation amplifier
Phoenix
| MINI MCR-SL-UI-UI-NC
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Gira - 122200 - Video amplifier door communication - Video switchbox for monitoring system 122200
£94.47 incl. VAT (£0.00)

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plus shipping
(£125.29 RRP***)
Video amplifier door communication - Video switchbox for monitoring system
Gira
| 122200
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