ENERGY HARVESTING WIRELESS SWITCH Page 4 / 5

BLUETOOTH FAQ’S

ZF Friedrichshafen AG twitter.com/zf_konzern Graf-Zeppelin-Straße 1 facebook.com/zffriedrichshafen 91275 Auerbach youtube.com/zffriedrichshafenag Deutschland Telefon +49 9643 18-0 Telefax +49 9643 18-1720 www.switches-sensors.zf.com ENERGY HARVESTING ZF Electronic Systems Pleasant Prairie LLC 11200 88th Avenue How does the pairing of the Pleasant Prairie, Wisconsin ZF Bluetooth Low Energy components work? USA 53158 WIRELESS SWITCH Pairing of wireless device via pre-programmed MAC Phone +1 262 942 6500 Fax +1 262 942 6566 addresses, a dynamic list of connected switches or via a mobile app. According to the version pairing can also be ZF Services Hong Kong Limited realized via NFC. 2 / F Technology Plaza 29–35 Sha Tsui Road Tsuen Wan, New Territories Which smartphone app can be used to Hong Kong display the Bluetooth Low Energy telegrams Phone +852 26 15 93 53 Fax +852 26 15 96 89 of a ZF Bluetooth Low Energy Switch? The telegrams can be displayed via IOS® Bluetooth Smart ZF Electronics TVS (India) Private Limited Scanner or Android™ Bluetooth Low Energy Analyzer. Madurai – Melur Road, Vellaripatti, Madurai – 625 122 India Phone +91 452 24 202 08 Fax +91 452 24 203 82 801635; 45713730; EN; 02/2020; 1,5; FLI

1 21 Contents

ENERGY HARVESTING WITH THE ENERGY HARVESTING WIRELESS SWITCH Page 4 / 5

STANDARD TRANSMITTER – COMPONENTS Page 6

STANDARD TRANSMITTER – WIRELESS SWITCH WITH HOUSING Page 7

RECEIVER PCB Page 8

RECEIVER WITH HOUSING Page 9

SMART HOME Page 10 / 11

WHETHER KNX-RF, BLUETOOTH OR ENOCEAN ‒ LIGHT SWITCH MODULES SET YOU FREE Page 12

KNX PUSHBUTTON MODULE WITH PROGRAMMING ADAPTER AND MEDIA COUPLER Page 13

ENERGY HARVESTING BLUETOOTH® LOW ENERGY PUSHBUTTON MODULE Page 14

PUSHBUTTON MODULE – FURTHER RF STANDARDS Page 15

FAQS AND ADDITIONAL INFORMATION Page 16 –21

4 ENERGY HARVESTING WIRELESS SWITCH In a world where the number of networks is increasing, requirements for information transmission are also changing. Trans mission must be mobile and flexible, while using as little energy as possible. The solu- tion is energy harvesting wireless switches from ZF. They’re easy and effective to use, without any cables or batteries.

3 ENERGY HARVESTING WITH THE ENERGY HARVESTING WIRELESS SWITCH

For many years, electromechanical switches have been a technical constant offering few surprises – until the day that ZF added “energy harvesting solutions” and “wireless” to the mix.

Breaking new ground means using intelligent technolo- Thus, it supplies the consumer – in this case RF electro- gies: Energy harvesting makes use of energy that is alrea- nics with transmitting antenna – with the energy requi- dy available. Instead of generating auxiliary energy red for transmitting the RF signal. through an integrated energy source or adding it via an external energy supply, it converts energy that is availab- This offers a tremendous advantage: Due to its miniature le in the surrounding environment or that is acting on the construction, the high efficiency in the functional chain, system. The energy harvesting wireless pushbutton mo- and its long life expectancy of up to 1,000,000 switching dule from ZF applies this principle of energy conversion. cycles, the ZF wireless pushbutton module needs only a small amount of power for operation with no maintenan- Energy harvesting with an inductive generator ce required – and can be installed in a tight space. ZF’s energy harvesting wireless pushbutton module works on an inductive basis. It transforms energy created Best connections – for industry and building technology by mechanical actuation into an electrical energy pulse. Various RF standards can be used for transmission, from When the generator is activated, the magnetic flux in a ZF proprietary to RF standards like Bluetooth Low Ener- coil system is suddenly reversed, thus generating the re- gy or ZigBee GreenPower, right up to customer-specific quired electrical energy. This energy pulse is then trans- requirements. Via Bluetooth Low Energy, batteryfree IoT formed and spread over time into a constant supply vol- applications that enable an easy connection to mobile ap- tage by the energy management components. plications (IOS®, Android™) can be realized for numerous projects. Another excellent option for integration into building automation is provided by the worldwide bus standard KNX. This standard was developed in re-

4 Actuation

S N S N

S N N S

Intelligent energy converter: The inductive generator converts mechanical energy into an electrical energy pulse by continuously changing the direction of the magnetic field.

Output Input Energy RF Force Actuation Energy RF Antenna conversion protocol Stroke mechanics management electronics system (generator) (power, Haptics duration)

Energy harvesting with the self-powered functional switch: It converts the incoming mechanical energy from operating the switch into electrical energy that sends pulses to an RF receiver via RF electronics.

cent years, starting from a purely cabled approach, mo- new light switches in a freshly decorated room without ving on to wireless technology, and then to fully integra- having to cut any holes in the wall. ted wireless technology with central configuration via the ETS software tool. It is now being expanded with the There are also numerous possibilities for use in industrial new wireless pushbutton module, which integrates the automation, particularly when the time it takes to lay ca- energy harvesting aspect: Operating the pushbutton mo- bles is disproportionate to the application. Here again, dule generates enough electrical energy to send a com- the energy harvesting wireless switch serves as a cost-ef- plete KNX RF protocol directly to a KNX receiver of your fective, battery-less alternative to cable-based choice. A gateway is not required. The transmitter range micro-switches. is up to 30 meters in buildings (868.3 MHz band).

One advantage after another This environmentally friendly system has numerous advantages: You have the flexibility to install a switch without cabling in any location you want, where it will fulfill its function vero the entire length of its service life without any maintenance or battery changes. In contrast to information transmission via cables, the self-powered wireless switch is also attractive for building services because it’s easy to retrofit. For example, you can install

5 STANDARD TRANSMITTER – COMPONENTS

Generators – Features Generators with PCB – Features ∙ Inductive generator: The energy required for data ∙ Energy harvesting system with no wires, transmission is created by the mechanical actuation consisting of generator and transmission electronics of the switch ∙ Wireless data transfer via RF technology ∙ Miniature design combined with extremely – Saves on plug connections high energy output – Easy to install in virtually inaccessible areas ∙ Long mechanical life –No complex wire assembly ∙ Momentary design: Switching mechanism returns to ∙ Availability of multiple frequency bands allows use starting position after release (pushbutton) worldwide in a range of applications ∙ Maintained design: Switching mechanism with ∙ Maintenance-free – no batteries to replace two rest positions (e. g. On / Off switch) ∙ Flexible “pairing” (for BLE also via NFC) allows the operation of several receivers with one switch (and vice versa) ∙ “Unique ID” ensures unambiguous identification when operating multiple switches ∙ Realization with ZF proprietary protocol and Bluetooth Low Energy protocol possible

Technical data Series Generator – momentary Generator – maintained Generator with PCB Part no. AFIG-0007 AFIG-0010 Please find part numbers of available standard products in the FAQ‘s section Dimensions 20.1 x 7.3 x 14.3 mm 20.1 x 7.3 x 19.3 mm 21.7 x 7.3 x 23.3 mm Energy generated 2x min. 0.33 mWs 1x min. 0.33 mWs – Lifetime min. 1,000,000 operations min. 100,000 operations min. 1,000,000 operations Operating force approx. 13 N 5 – 16 N – (depending on lever length) Temperature range – 40 to + 85 °C – 40 to + 85 °C – 40 to + 85 °C Frequency bands – – 868.3 MHz, 915.0 MHz, 2.4 GHz RF protocol – – ZF proprietary, Bluetooth Low Energy

6 STANDARD TRANSMITTER – WIRELESS SWITCH WITH HOUSING

Energy harvesting wireless snap and rocker switches – ∙ Long mechanical life Features ∙ Flexible “pairing” (for BLE also via NFC) ∙ Energy harvesting, wireless system allows the operation of several receivers ∙ Miniature design combined with extremely with one switch (and vice versa) high energy output ∙ “Unique ID” ensures unambiguous identification ∙ Wireless data transfer via RF technology when operating multiple switches – Saves on plug connections ∙ Compatible RF receiver available – Easy to install in virtually inaccessible areas ∙ Protocols are sent multiple times and delayed – No complex wire assembly to ensure a robust data transmission ∙ Energy harvester without a battery: The RF energy ∙ Snap switch also available with auxiliary actuator required is created by the mechanical actuation options of the switch ∙ Availability of multiple frequency bands allows use worldwide in a range of applications ∙ Maintenance-free – no batteries to replace ∙ Realization with ZF proprietary protocol and Bluetooth Low Energy protocol

Technical data Series Energy harvesting wireless snap switch Energy harvesting wireless rocker switch Part no. Please find part numbers of Please find part numbers of available standard products in available standard products in the FAQ‘s section the FAQ‘s section Dimensions 36.7 x 27 x 9.8 mm 27 x 27 x 11.85 mm Design Snap switch, momentary Rocker switch, momentary Temperature range –40 to + 85 °C –40 to + 85 °C Lifetime min. 1,000,000 operations min. 100,000 operations Frequency bands 868.3 MHz, 915.0 MHz, 2.4 GHz 868.3 MHz, 915.0 MHz, 2.4 GHz RF protocol ZF proprietary, Bluetooth Low Energy ZF proprietary, Bluetooth Low Energy RF distance (open area) up to 300 m @ 868 MHz / up to 300 m @ 868 MHz / up to 100 m @ 2.4 GHz up to 100 m @ 2.4 GHz RF distance (in buildings) up to 30 m @ 868 MHz / up to 30 m @ 868 MHz / up to 10 m @ 2.4 GHz up to 10 m @ 2.4 GHz Operating force max. 15 N max. 8 N Operating speed 0.1 m / s 0.1 m / s Housing protection class IP40 IP40

7 RECEIVER PCB

Receiver only – Features Two different operating modes for interface and direct con- ∙ PCB as standalone product for energy harvesting trol transmission available: wireless switches ∙ Proprietary ZF RF protocol DCM – Direct Control Mode ∙ Designed for frequency bands in Europe and China The telegrams received are evaluated and (868.3 MHz) or North America (915.0 MHz) four output channels are switched directly. ∙ Flexible „pairing“ in the direct control mode allows the operation of several wireless switches IFM – Interface Mode with one receiver (and vice versa) The RF telegrams received are combined ∙ Unambiguous identification of each wireless switch in one UART telegram and transmitted. by means of a hard-coded “unique ID” ∙ Compatible wireless switches (snap switch, rocker switch) available ∙ Repeater function possible for greater distances (no standard) ∙ Various operating modes for interface and direct control transmission

Technical data Series Receiver PCB Part no. Please find part numbers of available standard products in the FAQ‘s section Dimensions 26 x 23 x 1.3 mm Temperature range – 40 to + 85 °C Receiver sensitivity typ. – 98 dBm Receiver class Class 2 Supply voltage 5 V DC stabilized Output interfaces Interface Mode (IFM) Operating modes Direct Control Mode (DCM) Frequency bands 868.3 MHz or 915.0 MHz Antennas Wire antenna (or 50 ohm output on request) RF protocol ZF proprietary

8 RECEIVER WITH HOUSING

Receiver with housing – Features ∙ Standard receiver module for energy harvesting wireless switches ∙ Various connection options ∙ Suitable for wall or rail installation ∙ Proprietary ZF radio protocol ∙ Designed for frequency bands in Europe and China (868.3 MHz) or North America (915.0 MHz) ∙ Operation in the interface mode: Combination of all received data from ZF RF switches and output via UART interface ∙ “Unique ID” ensures the unambiguous identification of multiple switches ∙ Compatible wireless switches (snap switch, rocker switch) available ∙ Repeater function possible for greater distances (no standard)

Technical data Series Receiver PCB Part no. AFZE-1003 (868.3 MHz) / AFZE-5003 (915 MHz) Dimensions 77 x 65.7 x 30.5 mm Temperature range – 40 to + 85 °C Receiver sensitivity typ. – 98 dBm Receiver class – 40 to + 85 °C Supply voltage 5 V DC stabilized or 7 V to 24 V DC unstable, 5 V USB Output interfaces Low-voltage relay 48 V or 230 V; TTL, RS232 or RS485 bus; digital output (high / low) or SPI; USB 2.0 Frequency bands 868.3 MHz or 915.0 MHz Antennas Wire antenna with plastic sleeve or 50 ohm output RF protocol ZF proprietary

9 Wireless pushbuttons

FOR BUILDINGS. Transmits its signal without batteries or wires, even through ceilings, floors, and walls.

SMART HOME

Today this term covers a variety of solutions that make living and working in buildings more efficient and comfortable. In this arena, ZF represents independence and flexibility: flexibly switching and controlling the building environment, independently of cables and batteries.

Easy installation and handling Flexible and uncomplicated In new buildings, old buildings, renovated properties, or The multi-pushbutton module is as flexible as its user, even in an industrial application – with the energy har- adapting to any living situation. Thanks to the simple vesting multi-pushbutton module from ZF, you’re finally configuration of ZF products, your switch can turn a light entering the “smart” age. Connect your high-tech product on and off today and function as a door opener tomorrow. comfortably and conveniently. ZF’s energy Harvesting You can comfortably decide what function your switch multi-pushbutton module works without batteries or will perform and where it will be positioned in your build- wires, allowing you to install it anywhere without going to ing, and then change it later on without a lot of trouble. the trouble of laying cables. This means that there’s no Plan your home decor without worrying about where to longer any problem with installing it on design surfaces position the switches, because they can be subsequently such as glass, wood, or concrete. With the multi-pushbut- moved to wherever they’re actually needed. Dim your ton module, ZF declares war on cable slots and batteries. lights, control your blinds, or make your living room cozy ZF’s “energy harvesting” portfolio stands for easy installa- with a preconfigured scheme that sets the lights exactly as tion and handling. you like when you want to relax – all with a single switch, from your seat on the couch.

10 „Smart“ and independent Stay independent and take advantage of the various RF KNX WIRELESS PUSHBUTTON MODULE: standards in our program. From the RF standards like ONE SWITCH, SIX COMMANDS KNX-RF, Bluetooth Low Energy and ZigBee Greenpower to customer-specific RF solutions. Every aspect of your application benefits from ZF’s typically excellent service while we accompany you every step of the way. With the KNX multi-pushbutton module, you can execute up to six commands with a single switch. You have the usual left rocker top / bottom and right rocker top / bottom settings, with the additional option of switching the right and left rocker switches top / bottom simultaneously to generate a fifth and sixth command (see right). This is only one innovation in energy harvesting wireless communication. Learn about others and immerse yourself in the world of RF technologies. Let the battery-less, wireless multi-pushbutton module from ZF be your next step toward a “smarter world”.

11 WHETHER KNX-RF, BLUETOOTH OR ENOCEAN ‒ LIGHT SWITCH MODULES SET YOU FREE

The ZF Forum in Friedrichshafen. A new office concept promotes efficient and variable work Light Switch Modules from ZF support for over 600 employees. One feature contri buting to the flexible use of rooms is the energy the communication based on different harvesting light switch module. RF protocols

KNX-RF The KNX standard is a manufacturer independent bus system for building automation applications. The RF version of KNX, KNX-RF, communicates in the 868 MHz frequency band and can be connected to an existing bus system or operate individually.

EnOcean The EnOcean RF protocol is mainly used for building automation applications with the focus of energy harvesting technologies.

Bluetooth Low Energy Bluetooth Low Energy or Bluetooth 5.0 is a RF protocol for the 2.4 GHz frequency band that is used for Internet of Things applications with low power consumption. Over 500 of the company’s own pushbutton modules ensure optimal working conditions in the ZF Forum. ZigBee GreenPower ZigBee Green Power is a RF protocol that has been particularly designed for batteryfree sensors with the frequency 2.4 GHz.

12 KNX PUSHBUTTON MODULE WITH PROGRAMMING ADAPTER AND MEDIA COUPLER

Pushbutton module – Features Media coupler ∙ Self-powered, wireless pushbutton module ∙ Connects a KNX TP (twisted-pair) line for building automation (e. g. for controlling lights to a KNX RF (radio) line or blinds) ∙ Receiver for KNX RF pushbutton module ∙ Can be used with all design parts designed for energy and other KNX RF devices harvesting ∙ Configurable via the ETS5 software ∙ Maintenance-free – no batteries to replace using a programming adapter ∙ Easy to install, even in virtually inaccessible places ∙ Product included in ETS5 catalogue ∙ Configurable via the ETS5 software without a gateway ∙ Powered via TP KNX bus, by using a programming adapter so no external AC or DC power supply ∙ Product available in the ETS5 catalogue unit is required ∙ Direct communication with KNX RF devices

Programming adapter – Features ∙ Supplies battery power to the KNX RF pushbutton module ∙ Permits bidirectional wireless communication with pushbutton module ∙ When plugged in, directly activates the pushbutton module’s pairing mode

Technical data Series KNX RF pushbutton module Programming adapter Media coupler Part no. AFIM-1010 AFZM-0001 AFZE-1008 Dimensions 40 x 40 x 11.2 mm 42.1 x 58.1 x 30.4 mm 37 x 37 x 9 mm Frequency band 868.3 MHz – 868.3 MHz Temperature range – 20 °C to + 45 °C – 20 °C to + 45 °C – 5 °C to + 45 °C RF distance (in buildings) up to 30 m – up to 30 m RF protocol KNX RF1.R – KNX RF1.R Modulation FSK – FSK Power supply Self-powered 2 x AAA batteries (1.2 V or 1.5 V) KNX line, 21 to 30 V DC (SELV)

13 ENERGY HARVESTING BLUETOOTH® LOW ENERGY PUSHBUTTON MODULE

Pushbutton module – Features ∙ Self-powered, wireless pushbutton module for building automation (e. g. for controlling lights or blinds) ∙ Convenient for the realization of energy harvesting switches with Bluetooth Low Energy RF protocol ∙ Maintenance-free ‒ no batteries to replace ∙ Easy and flexible to install, even in virtually inaccessible places ∙ Suitable for all switch series designed for Energy Harvesting ∙ Can be used in Bluetooth mesh networks

Technical data Series Bluetooth low energy pushbutton module Dimensions 40 x 40 x 11.2 mm Frequency band 2.4 GHz RF distance up to 10 m (in buildings at 0dBm) RF protocol from Bluetooth Low Energy 5.0 Power supply Self-powered Pairing NFC Device Identification Individual 48 bit MAC address Data packages ca. 10 telegrams per push and release RF channels BLE channels 37, 38, and 39 Security AES128

14 PUSHBUTTON MODULE – FURTHER RF STANDARDS

Pushbutton moduel – Features ∙ Self-powered, wireless pushbutton module for building automation (e.g. for controlling lights or blinds) ∙ Suitable for all switch series designed for Energy Harvesting ∙ Maintenance- free – no batteries to replace ∙ Easy to install, even in virtually inaccessible places ∙ Different frequency bands available for worldwide use

Technical data Series Pushbutton module Dimensions 40 x 40 x 11.2 mm Frequency band 868.3 MHz, 2.4 GHz Operating Temperature -20°C…+ 45°C RF distance (building) up to 30 m @ 868.3 MHz, up to 10 m @ 2.4 GHz RF protocol EnOcean (ISO/IEC 14543-3-1X), ZigBee GreenPower Modulation ASK, QPSK Power supply Self-powered

15 WIRELESS TECHNOLOGY FAQ‘S

What is the meaning of pairing and how does it work? How many transmitters can be paired with one receiver? To connect a wireless transmitter and a receiver, they Up to 32 wireless transmitters can be paired with one ra- have to be coupled. This is called pairing. The receiver is dio receiver for products using the proprietary ZF Proto- switched to pairing-mode by pressing a push button. If a col. For special applications the quantity can be increased signal is triggered with one or more wireless transmitters, to a maximum of 256 wireless transmitters. all the transmitters will pair with the one receiver. How many radio telegrams Which factors affect are transmitted per single operation? the transmitting and receiving reliability? To increase the transmission reliability, products with Transmitting and receiving reliability of wireless signals proprietary ZF Protocol transmit three redundant radio depends on various factors. In addition to technical va- telegrams per operation. For special applications the lues, e.g. transmission power of the wireless transmitter number of telegrams can be increased to a maximum of and sensitivity of radio receivers, environmental conditi- 7 radio telegrams. ons are essential. Barriers - like walls and ceilings in buildings - dampen and reflect radio waves affecting the Could a wireless signal be tapped by other radio receivers? transmission reliability. Interference of radio transmis- Every ZF wireless product transmits at a specific radio sion can be caused by other radio participants when they frequency. are using the same frequency bands. Instructions for ope- Only the radio receiver working at the same frequency ration and installation of our wireless technology can be can receive and evaluate the signals. At the beginning of found in the application notes. each ZF radio telegram there is a so-called preamble. This preamble is a defined sequence of data bits. Only ra- How can the transmitting and dio receivers familiar with this preamble react to the ZF receiving reliability be ensured? radio signal. Barriers - like walls and ceilings in buildings - damp and Therefore radio signals can only be evaluated by the re- reflect radio waves. Therefore it is important to ensure ceivers using the same frequency and can identify the ZF that as few walls and ceilings are between the wireless radio protocol. Details on the structure of the ZF radio transmitters and receivers, as possible. To minimize the protocol can be found in the application notes. disturbance caused by other radio participants, the radio telegrams should be transmitted several times. Instructi- How does the receiver know ons for operation and installation of our wireless techno- which transmitter the signal was sent from? logy can be found in the application notes. Every ZF wireless transmitter includes a unique identification number (Unique IDentifier = UID). This UID con- sists of 32 data bits. In every radio telegram the transmitter sends to the receiver, the UID is transmitted. During pairing of the transmitter to the receiver, the receiver saves this UID. The receiver evaluates only the signals of the radio transmitter for which the UID was saved. De- tails on the structure of the ZF radio protocol can be found in the application notes.

16 WIRELESS TECHNOLOGY FAQ‘S

How many receivers can be served by one transmitter? In the standard pairing mode, one RF switch kann switch For products with ZF protocol there is no restriction to all four output channels if each transmitter should have the quantity of receivers which can be served by one the same function. In the extended pairing mode, diffe- transmitter. rent functions (Toggle, Tipp, On, Off) can be assigned for the four output channels. For each transmitter, one speci- Is the transmission of the ZF protocol encrypted? fic function can be assigned to control one output chan- Currently the ZF protocol is transmitted not encrypted. nel. Paired switches can be deleted individually or all together. Which receivers can ZF energy harvesting switches be paired with? To pair a transmitter with a receiver, both devices have Transmitter 1 UID #1 − #32 “to speak the same language“. This means in the field of UID #1 Receiver wireless technology that both devices have to use exactly Transmitter 2 Stamp the same radio frequency, and be able to understand the UID #2 protocol. Therefore, the telegrams of ZF products with Transmitter 3 OUT OUT OUT OUT ZF protocols can only identify with receivers that have UID #3 1 2 3 4 the ZF protocol implemented, e.g. the ZF-specified … receiver. Customer Transmitter 32 specific Receiver AFZE-1003 AFZE-5003 UID #32 control board AFZE-1005 AFZE-5004 Transmitter

AFIM-1001 In the interface mode, the received sub telegrams of RF AFIS-1002 – switches will be combined in one data telegram and sent AFIS-1003 AFIM-1013 via the UART interface. The interface mode is an open configuration system by which the received data is filte- AFIM-5002 AFIS-5002 – red and used according to the individual request. AFIS-5003

What is the difference between Transmitter 1 UID #1 − #32 UID #1 the two available variants of receiver PCB? Receiver Basically, there are two different operating modes: Direct Transmitter 2 Stamp UID #2 Control Mode (DCM) and Interface Mode (IFM). In Direct Control Mode, the module can be operated without an Transmitter 3 UART Telegram UID #3 external controller. In this mode, the module does not Data UID Data RSSI Count XOR have regular UART interface and the received telegrams … are evaluated and four output channels are directly swit- Customer ched. Using the connections “Pairing”, “Reset”, and “Sta- Transmitter 32 specific tus LED”, a maximum of 32 RF switches can be paired. UID #32 control board

17 WIRELESS TECHNOLOGY FAQ‘S WIRELESS TECHNOLOGY FAQ‘S ENERGY KNX PUSH- HARVESTING FAQ’S BUTTON FAQ’S

Do the receivers AFZE-1003 / AFZE-5003 How to get best results with the antenna set up? What is the difference between unidirectional and bidirec- Which radio protocols are supported? Which form of energy does the generator produce? Which advantages are there have a Modbus interface? The task of the antenna is to radiate the produced trans- tional communication? The ZF wireless switch products for industrial applicati- The inductive generator transforms mechanical force into for using the ZF KNX light switch module? Principally, the receiver only communicates via UART mission power with minimal losses into the surrounding The radio communication could either work from trans- ons and the generator module support the ZF proprietary electrical energy in the form of inductive voltage pulses. The energy harvesting pushbutton module from ZF di- and transmits the data of each radio reception from pai- environment (transmitting antenna) or to capture maxi- mitter to the receiver (unidirectional) or from the trans- protocol. The light switch pushbuttons support standard The energy management of the soldered electronics rectly supports the KNX RF radio protocol. Communicati- red transmitters directly as TTL signal or directly on the mum transmission power (receiving antenna). Conse- mitter to the receiver and reversed (bidirectional). A bidi- protocols KNX-RF, ZigBee Greenpower and EnOcean. changes this voltage pulse through rectification and inter- on can be made with KNX radio receivers or KNX media USB port to a connected computer. A connection to an quently, the orientation of the antenna can have a critical rectional communication is useful if the transmitter Bluetooth, Z-Wave and WiFi are not supported. mediate buffering into a constant operating voltage for coupler via the KNX RF protocol. There is no ‘Gateway’ industrial bus system like Modbus must be effected by effect on the radio characteristics. ZF wireless products sends, providing that it receives an acknowledgement the radio chip. necessary, to translate another radio protocol into a wired means of an additional converter. use a wire antenna or a PCB antenna. In the case of a from the receiver. KNX Bus. Also, the ZF pushbutton module with the KNX wire antenna, the insulated wire leads out of the switch Is the produced energy from media coupler can be configured with the ETS 5 Soft- Why do the energy harvesting housing. To ensure an optimal radiation it is important Unidirectional the inductive generator saved? ware. Parameters can be loaded via radio into the devices. wireless products use different frequencies? that the antenna is not twisted. Direct contact or indirect The produced electrical energy is not saved. The energy Product Part number ZF proprietary KNX RF ZigBee Greenpower EnOcean Bluetooth Energy Low Basically two factors are important for selecting a fre- shielding through metal surfaces should also be avoided. Transmitter Receiver is buffered using a capacitor to ensure the availability of Which housing, panels or rockers can be used for KNX AFIM-1001 quency: the technical propagation characteristics and re- This also applies for products with an integrated antenna (868 MHz) the radio chip for as long as possible. All available energy light switch module? AFIM-5002 – – – gularity and legal aspects. Regarding the technical propa- that is directly implemented into the conducting path on Bidirectional (915 MHz) is used to transmit the radio telegrams. The ZF pushbutton module is compatible with all switch AFIM-xxxx gation characteristics, it is generally correct that lower the electronic board. For these products you will find in- (2,4 GHz) series designed for energy harvesting pushbuttons. If the- frequencies have a greater transmission range. formation with regard to the installation in the respective AFIS-1002 Has the wireless switch been filed for patent? re are questions regarding the selection and procure- Transmitter Receiver (868 MHz) In addition, the propagation characteristics in buildings application notes. AFIS-5002 ZF has various patents filed for Energy Harvesting. These ment, please contact ZF. (915 MHz) – – – get better with lower frequencies. These so-called Sub- AFIS-xxxx patents include technology, design and structure of the (2,4 GHz) GHz-Frequencies, which means below 1 GHz, become Is it possible to reduce the length of the wire antenna? products, as well as applications. Details of the filed pa- How could the KNX pushbutton module AFIS-1003 therefore very attractive. The so-called resonance frequency is a very important (868 MHz) tents can be downloaded from the ZF website. be configured via ETS? AFIS-5003 – – – Due to national and international regulations not all fre- factor of the antenna construction. At this resonance fre- Is it possible to use ZF wireless switches for bidirectional (915 MHz) You can configure the ZF KNX light switch module via AFIS-xxxx quencies can be used everywhere. Only the 2.4 GHz quency the losses from the antenna are minimal. The re- communication? (2,4 GHz) What is important for the installation of the generator? ETS 5. The product can be selected via the ETS catalo- band is based on the definition of the ITU (International sonance frequency is usually the requested communicati- A tight fit of the Energy Harvester has to be ensured over gue. In addition, ZF offers a catalogue file for download. The wireless switch produces electrical energy through AFZE-1005 (868 MHz, IFM) Telecommunication Union), a so-called ISM Band. It is on frequency and confirmed in the settings by the radio the actuation or release of the inductive generator. The AFZE-5004 the whole life time. During the assembly of the Energy There is the option to assign functions for light on/off, (915 MHz, IFM) – – – – applicable all over the world. The 868 MHz frequency chip. The antenna was precisely designed for this fre- entire electrical energy produced is required for the AFZE-1007 Harvester in the application you must consider the guide- dim or shutter up/down. Parameters can be loaded via ra- (868 MHz, DCM) band is just applicable in Europe and China. In USA and quency which means the length of the wire antenna cor- AFZE-5007 lines for the “press-in position” to avoid possible damage, dio into the devices. transmission of one or more radio telegrams. No energy (915 MHz, DCM) Canada this band cannot be used. In this case it is neces- responds exactly to the constructive design. Therefore, remains. There is no energy left for the receiving of radio as the functionality of the Energy Harvester could be af- During the charging process – which takes a few seconds sary to use the 915 MHz band. reducing the length of the antenna will lead to transmis- fected. During assembly the mechanical parts should not – the required energy is supplied by the specified battery telegrams. The ZF wireless switch is only capable of uni- AFZE-1003 sion losses and should be avoided. (868 MHz) be be pinched or their movement impeded. The specified adapter. directional communication. AFZE-5003 – – – – Area Europe China USA / Kanada (915 MHz) lifetime and energy yield are only ensured if the exact ac- Frequency – – – tuation point is observed. All relevant information is de- How many KNX devices can be connected?

868 MHz – tailed in our technical specification. Due to the KNX topology, one line can combine 255 swit- On request – ches and one media coupler. 915 MHz – – Which unique selling points 2,4 GHz distinguish the energy generator? Where can electricians and system integrators purchase The unique characteristics of the ZF energy generator are the ZF KNX components?

AFZE-1008 the compact size and high energy yield. The generator is For information on KNX distributors and partners, please (KNX-RF) – – – – therefore suitable for installation in industrial switch ap- visit the ZF Switches & Sensors Website: plications and integration for building automation https://switches-sensors.zf.com/location-cat/knx-partner/ Optimal applications. antenna adjustment

18 19 19 20 20 WIRELESS TECHNOLOGY FAQ‘S WIRELESS TECHNOLOGY FAQ‘S ENERGY KNX PUSH- HARVESTING FAQ’S BUTTON FAQ’S

18 19 19 20 20 BLUETOOTH FAQ’S

1 21 BLUETOOTH FAQ’S

1 21