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PTM 200 User Manual

1. Pushbutton Transmitter Device PTM 200 User Manual V1 1 June 2005 The power of unused energy enocean Revision History The following major modifications and improvements have been made to the first version of this document User Manual PTM 200 V1 0 No Major Changes V1 1 e Dimensions of rocker adjusted chapter 1 4 fig 5 and fig 8 e Note added that simultaneously operating of 2 buttons can be differentiated but not of 3 or 4 buttons Chapter 2 2 e No of packets defined to 3 5 depending on residual energy chapter 1 3 and 2 3 e Chapter Rocker Model replaced by The EnOcean Universal Switch Insert chapter 3 1 e FCC IC Approval Requirements added chapter 3 6 e US version of Evaluation Kit added chapter 4 1 Published by EnOcean GmbH Kolpingring 18a 82041 Oberhaching Germany www enocean com info enocean com phone 49 89 6734 6890 EnOcean GmbH All Rights Reserved Important This information describes the type of component and shall not be considered as assured characteristics No responsibility is assumed for possible omissions or inaccuracies Circuitry and specifications are subject to change without notice For the latest product specifications refer to the EnOcean website http www enocean com As far as patents or other rights of third parties are concerned liability is only assumed for devices not for the described applications processes and circuits EnOcean does not
2. Anders Page 20 of 23 PTM 200 User Manual V1 1 d of unused energy enocean 3 6 FCC IC Approval Requirements This device complies with Part 15 of the FCC Rules and with RSS 210 of Industry Canada If this device is operated in compliance with the following requirements it can be operated without notification and free of charge in the area of the United States of America and in Canada Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Trade Name PTM 200 Model No PTM 200 FC FCC ID SZV PTM200 IC 5713A PTM200 This device complies with Part 15 of the FCC Rules and with RSS 210 of Industry Canada Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Warning Changes or modifications made to this equipment not expressly approved by EnOcean may void the FCC authorization to operate this equipment This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can
3. DECLARATI ON OF CONFORMI TY EnOcean GmbH Kolpingring 18a The power of unused anergy D 82041 Oberhaching enocean www enocean com Declaration of Conformity C EnOcean GmbH Kolpingring 18a D 82041 Oberhaching Germany Declare under our sole responsibility that the following labeled products Transmitter PTM100 STM100 STM250 PTM200 Receiver RCM110 RCM120 RCM121 Transceiver TCM110 TCM120 to which this declaration relates are when used according to specification in conformity with the technical requirements of the standards and the provisions of the essential requirements of the Directives detailed below Directives Electromagnetic Compatibility Directive 89 336 EC Radio and Telecommunications Terminal Equipment Directive R amp TTE 1999 5 EC Standards ETSI EN 301 489 1 2001 09 ETSI EN 301 489 3 2001 11 class 2 ETSI EN 61000 6 2 2002 08 ETSI EN 300 220 3 2000 09 Place of issue Oberhaching Date of issue 13 May 2005 Quality Manager General Manager Dr Matthias Heiden Markus Brehler Signature ignature i A Lp f _ A 0 5 Jln OEnOcean GmbH A Anders Page 23 of 23 PTM 200 User Manual V1 1
4. i LZ Figure 4 PTM 200 cut A EnOcean GmbH A Anders Page 7 of 23 PTM 200 User Manual V1 1 The power of unused energy enocean B B RI 4 610 2 PILL famine i Y ei m a Doy DX LTD A LS XJ M ee iem es 2 239 05 2 dimensions of rocker part Figure 5 PTM 100 cut B and C 36 4 40 15 RO 5 25 30 15 3 6 20 1 4039 1 labeling area Hatched areas support planes Figure 6 PTM 200 rear view OEnOcean GmbH A Anders Page 8 of 23 PTM 200 User Manual V1 1 The power of unused energy enocean catwalks of switch rocker 2 mounting plane D E v4 i i oe i press bow to stopper 2 dimensions of rocker part Figure 7 and 8 PTM 200 side view 1 5 Environmental Conditions Operating temperature ssssssssesssssssm mme 25 up to 65 C Storage temperature 40 up to 85 C 85 up to 100 C for 1h max Humidity eec eo etian sedi egg Feed atone Id ee ipie e P Tu 0 to 95 96 r h EnOcean GmbH A Anders Page 9 of 23 PTM 200 User Manual V1 1 The power of unused energy enocean 1 6 Ordering Information Ordering I nformation PTM 200 Pushbutton EnOcean Ordering Code S3001 A200 Transmitter Device Universal Switch Insert EnOcean easyfit PTM 250 in volume production For ordering
5. 2 1 Block Diagram 11 2 2 Contact Nipples Designation 12 2 3 PTM 200 Radio Telegram 13 2 4 PTM 200 Serial Data Communication via Receiver Device RCM 120 15 2 5 Basic Switching Features via Receiver Devices RCM 110 and RCM 120 _ 15 2 6 Learning of PTM 200 to RCM 110 120 Receivers 16 3 APPLICATIONS INFORMATION 17 3 1 The EnOcean Universal Switch Insert PTM 250 17 3 2 Construction of application specific Switch Rockers 19 3 3 Device Mounting 19 3 4 Transmission Range 19 3 5 CE Approval Requirements 20 3 6 FCC IC Approval Requirements 21 4 DEVELOPMENT TOOLS 22 4 1 Evaluation Kit EVA 100 105 22 4 2 Field Intensity Meter EPM 100 22 5 DECLARATI ON OF CONFORMI TY 23 EnOcean GmbH A Anders Page 3 of 23 PTM 200 User Manual V1 1 The power of unused energy enocean 1 GENERAL DESCRIPTION The radio transmitter device PTM 200 from EnOcean enables the implementation of wireless remote controls without batteries Power is provided by a built in electro dynamic power generator The PTM 200 device serves the 868 MHz air interface protocol of EnOcean Together with the receiver devices RCM 110 or RCM 120 this device can be easily integrated in operation and control units for the implementation of different application specific system solutions 2 Contact nipples 1 Energy bow for switch rocker Electrodynamic on both device sides identification Energy Converter Rotation axis for pushbuttons or switch rocker Figure
6. H5001 A231 Aluminum varnished H5001 A232 2 channel roller blinds White H5001 A220 Anthracite H5001 A221 Aluminum varnished H5001 A222 4 channel roller blinds White H5001 A240 Anthracite H5001 A241 Aluminum varnished H5001 A242 Table 1 Variants of PTM 250 universal switch insert Notes Delivery is without design frame this have to be ordered from the desired manufacturer program separately Please note that pressing the rocker sends a N message and releasing the rocker sends a U message EnOcean GmbH A Anders Page 18 of 23 PTM 200 User Manual V1 1 The power of unused energy enocean 3 2 Construction of application specific Switch Rockers For CAD system development support 3D construction data of the universal switch insert PTM 250 in Chapter 3 1 are available from EnOcean IGS data Using this data the mechanical interface is fixed and the shape and surface of the rocker s can be changed according to requirements Recommendation for suitable rocker material is Ultradur B 4520 with a surface roughness of min Ra 1 0 ym Please note that the rockers should be of non metal for best transmission range 3 3 Device Mounting For mounting the PTM 200 device into an application specific case the package outline drawings of the device are roughly dimensioned in 1 4 Mechanical Interface If more detailed dimensioning data of the PTM 200 device case is necessary 3D construction data is available from En
7. assume responsibility for use of devices described and limits its liability to the replacement of devices determined to be defective due to workmanship Devices or systems containing RF components must meet the essential requirements of the local legal authorities The approval requirements described in this document are of best knowledge without any warranty The devices must not be used in any relation with equipment that supports directly or indirectly human health or life or with applications that can result in danger for people animals or real value Components of the devices are considered and should be disposed of as hazardous waste Local government regulations are to be observed Packing Please use the recycling operators known to you By agreement we will take packing material back if it is sorted You must bear the costs of transport For packing material that is returned to us unsorted or that we are not obliged to accept we shall have to invoice you for any costs incurred EnOcean GmbH A Anders Page 2 of 23 PTM 200 User Manual V1 1 The power of unused energy enocean Table of Contents Revision History 2 Table of Contents 3 1 GENERAL DESCRIPTION 4 1 1 Functional Principle 4 1 2 Typical Applications 5 1 3 Features Overview 5 1 4 Mechanical I nterface 6 1 5 Environmental Conditions 9 1 6 Ordering Information 10 2 FUNCTIONAL DESCRIPTION 11
8. codes see chapter 3 1 Support for mounting the PTM GS Data of PTM 200 device case see Chapter 3 3 200 into an application specific Please send an Email to info enocean com casement Support for construction of IGS Data of PTM 250 switch rocker see Chapter 3 2 application specific switch Please send an Email to info enocean com rocker EnOcean GmbH A Anders Page 10 of 23 PTM 200 User Manual V1 1 The power of unused energy enocean 2 FUNCTIONAL DESCRI PTI ON 2 1 Block Diagram J J M Processor Contact Nipples Pushed Released DC Power Power Converter Figure 9 Block diagram of PTM 200 Energy Bow Power Generator Converts pressure on the energy bow into electrical energy Power Converter Electronic converter unit for generating the device DC power supply Processor Converts the contact nipples status and pushed released data from the power generator into a reliable and energy efficient serial telegram structure HF transmitter Sends the data in the form of a series of short radio signals EnOcean GmbH A Anders Page 11 of 23 PTM 200 User Manual V1 1 The power of unused energy enocean 2 2 Contact Nipples Designation With 4 contact nipples the PTM 200 offers 2 channels with 4 action states each upper lower nipple is pressed released when activating the energy bow The nipples designation is as follows CHANNEL Figure 10 Cont
9. radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures e Reorient or relocate the receiving antenna e Increase the separation between the equipment and receiver e Connect the equipment into an outlet on a circuit different from that to which the receiver is connected e Consult the dealer or an experienced radio TV technician for help Due to FCC 15 231 operational and timing requirements the PTM 200 switch device must not be operated more than 1088 times per hour pushed or released as one operation each e Total duration of transmissions must not exceed more than two seconds per hour e PTM 200 packet length is 0 7 ms max 5 redundant packets tolerance of 5 in packet length 5096 on average packet Ton Toff ratio ATTENTI ON Please be aware of the possibility of reduced transmission range when using EnOcean 868 MHz system near a US trunk radio station EnOcean GmbH A Anders Page 21 of 23 PTM 200 User Manual V1 1 The power of unused energy enocean 4 DEVELOPMENT TOOLS 4 1 Evaluation
10. 1 Electro dynamic powered radio transmitter device PTM 200 1 1 Functional Principle A common electro dynamic energy transducer is actuated by a bow 1 which can be pushed from outside the device on the left or right by an appropriate pushbutton or switch rocker When the energy bow is pushed down electrical energy is created and an RF telegram is transmitted including a 32 bit device ID Releasing the energy bow generates different telegram data so every PTM telegram contains the information that the bow was pressed or released Long or Short pushbutton operation the time between pushing and releasing the pushbutton can be easily detected by the receiver By doing that applications such as dimming control or jalousie control including slat action are simple to implement EnOcean GmbH A Anders Page 4 of 23 PTM 200 User Manual V1 1 The power of unused energy enocean In addition the PTM telegram transmits the operating status of the contact nipples 2 when pressing the bow This enables the identification of up to 2 appropriate switch rockers or up to 4 pushbuttons 1 2 Typical Applications e Building installation e Industrial automation e Consumer electronics Key applications are wall mounted flat rocker switches with 1 or 2 rockers with medial position as well as handheld remote controls with up to 4 single pushbuttons The PTM 200 device is part of a powerful RF system solution from EnOcean for operation
11. 200 User Manual V1 1 The power of unused energy enocean 1 4 Mechanical I nterface Device dimensions sssssssssssse eene nnns 40 0 x 40 0 x 11 2 mm Device weight seine rese ete edid inc el ee cee 20g 1g Energy bow travel operating force 1 8 mm 5 0 N 20 at room temperature Number of operations gt 50 000 actuations tested according to VDE 0632 EN 60669 Cover material oret desnudas Se ca Er naw weaned ead dd taa MEET be Hostaform POM Energy bow material ssuessssssssssssssee nemen nnn PBT 5096 GV Energy Bow Stopper Figure 2 PTM 200 tilted view including rocker catwalks EnOcean GmbH A Anders Page 6 of 23 PTM 200 User Manual V1 1 The power of unused energy enocean i 7 Zl LS a EN I Sat M ez a HE D m J gt Me M E a H a ES E A i p a et N Ia E R d sq t AH Ba 1 this catwalks are not needed when using one single rocker only 2 dimensions of rocker part Figure 3 PTM 200 top view note cut A B and C marking D N N CN Tot NG S LAY N me LLL ISSS A Z SFE OTA hs AM 37 230 15 77722727 Ld f i al END CEN CRORCRORORCA NC SON SO a ey Mmm eee WLIO Ll m LLL LLL Lk 7A
12. Kit EVA 100 105 EVA 100 is an evaluation kit to support a simple setting up operation of the receiver side when the EnOcean transmitter device PTM 200 is evaluated EVA 100 supports a quick evaluation of all RCM 110 and RCM 120 receiver operation modes and supports the fast development of applications Type EnOcean Ordering Code Scope of supply EVA 100 H3004 G100 e Evaluation board EVA PCB e EnOcean radio devices STM 100 PTM 100 RCM 110 and RCM 120 e CD with RS232 PC link monitor software and detailed kit documentation e 230V wall power supply for EVA PCB e Convenient equipment case EVA 105 H3004 G105 e US version 120V wall power supply 4 2 Field Intensity Meter EPM 100 The EPM100 is a mobile field intensity meter that helps the engineer to find the best installation positions for sensor and receiver It can also be used to check disturbances in links to already installed equipment The EPM100 displays the field intensity of received radio telegrams and interfering radio signals in the 868MHz range The simplest procedure for determining the best installation positions for the radio sensor receiver e Person 1 operates the radio sensor and generates pushbutton radio telegrams e Person 2 checks the received field intensity on the meter display to find the optimal installation position EnOcean GmbH A Anders Page 22 of 23 PTM 200 User Manual V1 1 fle of unused energy enocean 5
13. Ocean IGS data Please note that mounting the module back side on metal surfaces directly or mounting the module into metal frames can lead to up to typical 30 loss of transmission range within a building 3 4 Transmission Range The main factors that influence the system transmission range are type and location of the antennas of the receiver and the transmitter type of terrain and degree of obstruction of the link path sources of interference affecting the receiver and dead spots caused by signal reflections from nearby conductive objects Since the expected transmission range strongly depends on this system conditions range tests should categorically be performed before notification of a particular range that will be attainable by a particular application The following figures for expected transmission range are considered by using a PTM a STM or a TCM radio transmitter device and the RCM or the TCM radio receiver device with preinstalled whip antenna and may be used as a rough guide only e Line of sight connections Typically 30m range in corridors up to 100m in halls e Plasterboard walls dry wood Typically 30m range through max 5 walls e Brick walls aerated concrete Typically 20m range through max 3 walls e Ferroconcrete walls ceilings Typically 10m range through max 1 ceiling e Fire safety walls elevator shafts staircases and supply areas should be considered as screening The angle at which the transmit
14. act nipple designation Radio signals of the PTM 200 device are event controlled energy bow is pressed released with contact nipple code channel state and unique device identification fixed 32 bit ID When operating more than one nipple at the same time note that PTM 200 sends multiple button code combinations switch device of Type 2 unlike PTM 100 e N message One or two contact nipples have been pressed when activating the energy generator gt Message with nipple code and pressed released event status of the energy bow is sent e U message No contact nipple was pressed when activating the energy generator or 3 or 4 nipples have been pressed gt Message with pressed released event status of the energy bow is sent and the information if either none or more than two nipples have been pressed Note that it can t be differentiated if 3 or if 4 nipples have been pressed Note Due to the mechanical hysteresis of the energy bow in most rocker switch device implementations pressing the rocker sends an N message and releasing the rocker sends a U message EnOcean GmbH A Anders Page 12 of 23 PTM 200 User Manual V1 1 The power of unused energy enocean 2 3 PTM 200 Radio Telegram For the transmission of the telemetric signals EnOcean has defined a new dynamic radio data telegram that is adapted to the individual application It is optimized to the essential features of energy autarkic radio sensors e Minimal energ
15. and control applications Because the RF transmitters are self powered no batteries maintenance free RF systems are possible The RCM devices operate together with the following EnOcean components RCM general purpose radio receivers STM solar powered wireless sensors CTM remote control and TCM bi directional IT interfaces and repeater 1 3 Features Overview Power supply 3 etecietestete te ED re Ob Ea La Sdn ee sv dA Electro dynamic Power Generator power generation by rocker pressing Frequency transmission power seeseeene 868 3 MHz 10 mW max Modulation type data rate channel bandwidth ASK 120 kbps 280 kHz onte integrated Transmission range ssessssssssm mr approx 300 m free field Telegram packet length sub telegram ssssseseeseeees 0 7 ms 5 No of redundant packets ssse 3 5 depending on residual energy 3 packets within about 20 ms delay effected at random Number of channels ssssseseseseesesese 2 channels with 4 action states each upper lower contact nipple is pressed released Telegram type 5i rco TEE geo ed ur HR LAB eee RPS of type 2 allows interpretation of operating two buttons simultaneously Device identifier ssssesesseeeeeeeee individual 32 bit ID factory programmed EnOcean GmbH A Anders Page 5 of 23 PTM
16. s Page 16 of 23 PTM 200 User Manual V1 1 The power of unused energy enocean 3 APPLICATIONS I NFORMATION 3 1 The EnOcean Universal Switch Insert PTM 250 For evaluating the PTM 200 the EnOcean universal switch insert PTM 250 can be used EnOcean easyfit PTM 250 is a multi purpose very flat installation switch insert based on the PTM 200 radio module A base plate of format 71x71mm is adhered or screwed straight to the mounting surface The insert is compatible to numerous frame systems of 55 x 55 mm format BERKER S1 B1 B3 B7 Glas GIRA Standard55 E2 Event Esprit JUNG A500 Aplus MERTEN M Smart M Arc M Plan The design frame is held by an intermediate frame that comes with sophisticated spring construction to compensate for different frame heights and cutouts and securely fixes the PTM200 in place The most common rocker colors white anthracite and aluminum add the design variety Available are single and double rockers with light or roller blind signs Design frame to be ordered separately Figure 14 Universal switch insert EnOcean easyfit PTM 250 EnOcean GmbH A Anders Page 17 of 23 PTM 200 User Manual V1 1 The power of unused energy enocean Figure 15 PTM 250 combines EnOcean functionality with multiple switch designs Type Color Ordering No 2 channel light White H5001 A210 Anthracite H5001 A211 Aluminum varnished H5001 A212 4 channel light White H5001 A230 Anthracite
17. sed by radio data collision for EnOcean light switch transmitter PTM 100 EnOcean GmbH A Anders Page 14 of 23 PTM 200 User Manual V1 1 The power of unused energy enocean 2 4 PTM 200 Serial Data Communication via Receiver Device RCM 120 The RCM 120 Receiver Device of EnOcean enables standard asynchronous communication to a microcontroller or personal computer with a decompressed and simple data structure 9600 bps 1 start bit 8 bit data byte with LSB first 1 stop bit When the RCM 120 receiver is set to Mode O Serial Interface it transfers out data blocks of information from all received EnOcean radio telegrams from PTM STM TCM and CTM radio devices For a complete transmitter message a telegram of 14 data bytes is transferred via the serial link The data block format is explained in detail in the RCM 110 120 User Manual Figure 13 Receiver devices RCM 110 and RCM 120 2 5 Basic Switching Features via Receiver Devices RCM 110 and RCM 120 The multifunctional RCM 110 and RCM 120 Radio Receiver Devices are used to receive and process PTM telegrams generated and transmitted by EnOcean radio transmitters Via functional control outputs open collector these devices can be easily integrated into control and switching units for the implementation of different application specific system solutions RCM 110 output switching functionalities controlled by PTM radio signals e Basic signal output functions s
18. smission cycle at least three identical subtelegrams are transmitted The transmission of a subtelegram lasts approximately 0 7 ms To optimize data security each telegram is repeated twice within about 20 ms whereas the delay between the second and the third transmission burst is effected at random If some residual energy is available after transmission of three subtelegrams up to 2 further subtelegrams are sent EnOcean GmbH A Anders Page 13 of 23 PTM 200 User Manual V1 1 The power of unused energy enocean Nominal values 5 ms 10 ms 0 7 5ms at random Figure 11 PTM 200 radio timing 2 3 4 Reliable radio transmission within systems operating many sensors The very short telegrams of EnOcean transmitters enable the operating of a large number of senders within the same radio cell the error rate caused by telegram collisions remains extremely low Statistically viewed the transmission reliability is still greater than 99 9996 in the case of 100 radio sensors that transmit once every minute This means that even large office buildings and also huge industrial facilities can be equipped with a large number of sensors of this kind of radio technology Transmission probability in 96 LLLLLLI 1 10 100 1000 Number of senders transmitting one time per minute Figure 12 Probability of transmission failure cau
19. ted signal hits the wall is very important The effective wall thickness and with it the signal attenuation varies according to this angle Signals should EnOcean GmbH A Anders Page 19 of 23 PTM 200 User Manual V1 1 d of unused energy enocean be transmitted as directly as possible through the wall Wall niches should be avoided Other factors restricting transmission range e Switch mounted on metal surfaces or into metal frames up to 30 loss of indoor transmission range e Hollow lightweight walls filled with insulating wool on metal foil e False ceilings with panels of metal or carbon fiber e Lead glass or glass with metal coating steel furniture The distance between EnOcean receivers and other transmitting devices such as computers audio and video equipment that also emit high frequency signals should be at least 0 5m Please note for use in the US and in Canada In the US 868 MHz frequency range is used by Trunk Radio Since a reduction of transmission range is to be expected near a trunk radio station range tests at the system s target location should categorically be performed before notification of a particular range in the US and in Canada 3 5 CE Approval Requirements The devices bear the EC conformity marking CE and conform to the R amp TTE EU directive on radio equipment The assembly conforms to the European and national requirements of electromagnetic compatibility The conformity has been proven and
20. the corresponding documentation has been deposited at EnOcean The PTM devices can be operated without notification and free of charge in the area of the European Union in Switzerland in Croatia in Cyprus in Czech in Estonia in Hungary in Latvia in Lithuania in Malta in Poland in Romania and in Slovenia The following provisos apply e EnOcean RF devices must not be modified or used outside their specification limits e EnOcean RF devices may only be used to transfer digital or digitized data Analog speech and or music are not permitted e The final product incorporating EnOcean RF devices must itself meet the essential requirement of the R amp TTE Directive and a CE marking must be affixed on the final product and on the sales packaging each Operating instructions containing a Declaration of Conformity has to be attached e f transmitters are used according to the regulations of the 868 3 MHz band a so called Duty Cycle of 196 per hour for each transmitter must not be exceeded Permanent transmitters such as radio earphones are not allowed For conventional applications it must be ensured that the PTM 200 radio device is not operated more than 6000 times within one hour one operation energy bow is pressed and released Within this calculation the extraordinary short telegram length is considered including three subtelegrams see Chapter 2 3 3 Also a tolerance of 596 in the telegram length is included EnOcean GmbH A
21. witching On Off 1 2 or 4 channels e Basic signal output function dimming On Off pushbutton operated quickly and PWM 50 kHz pushbutton pressed for a longer time with switch off value memory e Scene selection control ALL On Off 6 scene memories e Learning procedure for EnOcean transmitters easy to operate RCM 120 output switching functionalities controlled by PTM radio signals e Basic signal output function pushbutton 1 channel e Basic signal output function tubular motor control UP DOWN with slat action 1 or 2 channel EnOcean GmbH A Anders Page 15 of 23 PTM 200 User Manual V1 1 The power of unused energy enocean e Learning procedure for EnOcean transmitters easy to operate Any further switching functions can be simply and flexibly implemented using the serial interface output of the RCM 120 that is connected to a low priced microcontroller The required output control logic can be easily programmed by the user 2 6 Learning of PTM 200 to RCM 110 120 Receivers The PTM 200 can be easily made known to the receiver RCM 110 or RCM 120 that has been set into learn mode through triggering a PTM 200 radio signal by operating the energy bow when pressing either the O rod or the I rod of the desired channel A or B If the RCM 120 receiver is operated in mode 0 Serial Interface telegrams from learned PTM transmitters are signed see RCM 110 120 User Manual EnOcean GmbH A Ander
22. y demand e Possibility of operating hundred of senders within the same radio cell e Maximum transmission reliability e Wide transmission range e Easy extensibility e Suitable for uni and bi directional communication e Flexibility for adaptation of different data structures and data quantities e Data encryption option 2 3 1 Frequency range The EnOcean technology operates the 868 3 MHz radio channel 868 0 868 6 MHz which is exclusively released for short time data transmission in Europe Timing conditions can be found in chapter 3 5 of this paper Because of the very low radiated field strength on average the 868 3 MHz EnOcean radio technology can be operated in the USA and in Canada Timing conditions can be found in chapter 3 6 of this paper 2 3 2 Modulation process As modulation process EnOcean uses incoherent amplitude modulation ASK Digital amplitude modulation enables the implementation of very efficient energy saving transmitters because only the 1 bits are transferred At the same interference signal level the transmission security of the alternative FSK method is identical to that of the ASK method Reference Pehl Digitale und analoge Nachrichten bertragung H thig 2001 2 3 3 Transmission timing The transmission timing of the radio device PTM 200 has been developed to avoid possible collisions with data packages of other EnOcean transmitters as well as disturbances from the environment With each tran

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