STM 250 User Manual
Contents
1. ccc cece cece creer eeeee seen eens eeeeeeaeeeeeeeeeeneeaaaaes 18g Material Of housing ccccccccee eee eeeeeeeeeeeeeeeeeeeeeeeeseeeeeteaeeeeeenseugeeeenseguenetteaggegs PC ABS Color Of housings ccccccce cece cece eeeeeeeeeeeeeeeeeeeaaaaes signal white similar to RAL 9003 Figure 3 Top view EnOcean GmbH A Anders Page 6 of 25 STM 250 User Manual V1 52 The power of unused energy enocean Figure 4 Side view Figure 5 Front view o gt Figure 6 Bottom view EnOcean GmbH A Anders Page 7 of 25 STM 250 User Manual V1 52 The power of unused energy enocean 1 5 Dimensions of Magnet Housing Dimensions of Magnet Housing ccceeeeeeeeee base 37 mm x 10 mm x height 5 mm Weight of Magnet Unit ccc cece cece cece e eee e eee eee e eden eden ee HEHE SSDS SEER EEE SEES EEE SEES 2g M terial OF NOUSING rraitu A EAA AAAS PC ABS Color of housing sssssesssssssnrrrnrerrrrsnrrrnrererrrrrrrnrerne signal white similar to RAL 9003 Figure 7 Magnet Housing 10 Figure 8 Top view Figure 9 Side view EnOcean GmbH A Anders Page 8 of 25 STM 250 User Manual V1 52 The power of unused energy enocean Figure 10 Front view Figure 11 Bottom view 1 6 Environmental Conditions Operating temperature c ccc ccccccceee cesses cents eeeeeeeeeeeeeeeeeeeeaaaeennnegs 25 up to 65 C Storage temperature ccccceeeeee eee ee2. Radio Magnet Contact STM 250 User Manual V1 52 May 2007 The power of unused energy enocean Revision History The following major modifications and improvements have been made to the first version of this document V1 0 Version Major Changes Chapter 1 5 Physical Dimensions of Magnet Housing added Chapter 2 6 Learning fully revised and renamed Chapter 2 3 Radio Telegram revised Chapter 3 2 Recommendations for Magnet Positioning revised Chapter 2 5 The bits LRN and STATE in DATABYTE_3 have been defined in final LRN 0 LRN pushbutton pressed and STATE 0 No magnet presence Update of Solar Energy Balance Calculation chapter 1 3 and 2 2 Energy storage Notes added concerning Goldcap configuration and concerning reduced component life time at continuously operation temperatures higher than 50 C chapter 2 2 Mounting note added that the receiver unit should not be placed at the same plane as the STM250 when STM250 is mounted on a metal surface chapter 3 1 Water protection class reduced to IP40 indoor use only chapter 1 6 Transmission range described in more detail chapter 3 3 FCC IC Approval Requirements added chapter 3 6 US version of Evaluation Kit added chapter 4 1 V1 ESD protection Note added that STM250 is qualified for the use within building automation amp installation not for industrial applications chapter 1 2 Switch over time defined to gt 80ms chapter
3. e Data encryption option 2 3 1 Frequency range and transmission cycle allowed 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 method FSK is identical to that of the ASK method Ref Pehl Digitale und analoge Nachrichtenubertragung H thig 2001 2 3 3 Transmission timing The transmission timing of the radio device STM 250 has been developed to avoid possible collisions with data packages of other EnOcean transmitters as well as disturbances from the environment With each transmission cycle 3 identical sub telegrams are transmitted The transmission of a sub telegram lasts approximately 0 9 ms To optimize data security each telegram is repeated twice within about 30 ms whereas the delay between the second and the third transmission burst is
4. Figure 14 2 2 3 Initial load time for filling energy store to capacity Load time STM 250 versus illumination of Goldcap from working limit to 90 of max loading voltage typ values load time hours D 100 200 300 400 500 600 700 800 900 1000 illumination Lux Figure 15 EnOcean GmbH A Anders Page 13 of 25 STM 250 User Manual V1 52 The power of unused energy enocean 2 2 4 Maximum operation time in total darkness STM 250 operation time in total darkness typ values initial loading of Goldcap is 90 of max loading voltage operation time days 100 1000 illumination Lux Figure 16 EnOcean GmbH A Anders Page 14 of 25 STM 250 User Manual V1 52 da of unused energy enocean 2 3 STM 250 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 energy 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
5. Model No STM 250 FCC ID SZV STM250 IC 5713A STM250 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 my 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 radiate radio frequency energy and if not installed EnOcean GmbH A Anders Page 22 of 25 STM 250 User Manual V1 52 The power of unused energy enocean 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 antenn
6. This means that the unit is unobtrusively mountable at every window or doorframe made of aluminum plastic or wood Mounting position of the Reed Contact is horizontal vertically or even tilted The arrow signs on the base of the Reed Contact should be directed downwards In this mounting position the STM 250 housing offers protection against splashing water drops Recommendation for mounting the STM250 on metal surfaces or window frames of aluminum Please note that a radio receiver unit e g RCM 120 should not be mounted in the same plane than the STM 250 base plate is mounted because in extension of the metal surface the transmission range is reduced by physical radio transmission effects of the antenna near to metal For example the receiver should not be mounted at the window front side First time operation of the LRN pushbutton Please note that the PCB is varnished for improved humidity protection It s possible that first time operation of the pushbutton can require some increased finger pressure This behavior is due to fabrication process and is no malfunction 3 2 Recommendations for Magnet Positioning The flat magnet should be positioned by facing the housing in the middle of the reed contact marking as follows Reed contact marking if fd lt C OLL Figure 20 Righted positioning of the Magnet Typical for window mounting The magnet can be positioned in vertical or in horizontal position
7. effected at random 4 time slots EnOcean GmbH A Anders Page 15 of 25 STM 250 User Manual V1 52 The power of unused energy enocean 5 ms 10 ms 0 7 4ms Figure 17 STM 250 radio timing 20 timer tolerance 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 99 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 EnOcean radio switch Typical imi radio switch INI INI U N 100 1000 Transmission probability in wO wO WwW e E ft aes ia cae d AA TT 1 10 Number of senders transmitting one time per minute Figure 18 Transmission reliability caused by radio data collision for EnOcean light switch transmitter EnOcean GmbH A Anders Page 16 of 25 STM 250 User Manual V1 52 da of unused energy enocean 2 4 Serial Data Communication via Receiver Device RCM 120 The RCM 120 Receiver Device of EnOcean enables standard asynchronous communication to a micro controller or personal computer with a decompressed an
8. 0 is a wireless magnet contact The radio sensor is powered by a small solar cell and by that it works absolutely maintenance free An integrated energy store allows operation for several days even in total darkness The reed contact housing and the magnet housing are very small This means that the EnOcean magnet contact is unobtrusively mountable at every window frame made of aluminum plastic or wood 1 1 Basic Functionality The STM 250 supervises an integrated reed contact and reports every status change immediately open lt gt closed In addition a sign of life signal is send around every 15 minutes Figure 1 Wireless magnet contact STM 250 Energy Store GOLDCAP Teach in Pushbutton Teach in Indication LED Magnet Contact Antenna Reed Helix Figure 2 STM 250 PCB open case EnOcean GmbH A Anders Page 4 of 25 STM 250 User Manual V1 52 The power of unused energy enocean 1 2 Typical Applications e STM 250 ts designed and qualified for the indoor use in building automation amp installation not for industrial applications in cause of ESD protection e Typical applications are window flap and door monitoring The STM 250 serves the 868 MHz air interface protocol of EnOcean Together with the serial interface output of receiver device RCM 120 this product can be easily integrated into different application specific system solutions The STM device is part of a powerful RF system solution from EnOcean for
9. 1 3 Cyclic presence signal time defined to 5 30 minutes typ 15 min chapter 1 3 e Sub telegram timing corrected V1 51 e Note added in 2 1 1 concerning capacity of Goldcap energy storage V1 52 e Editorial changes ail 2 3 4 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 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 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 dispose
10. a 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 STM 250 magnet contact must not be operated more than 1414 times per hour opened or closed e Total duration of transmissions must not exceed more than two seconds per hour e STM250 packet length is 0 9 ms 3 redundant packets tolerance of 5 in packet length 50 on average packet Ton Toff ratio ATTENTION 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 23 of 25 STM 250 User Manual V1 52 The power of unused energy enocean 4 TOOLS 4 1 Evaluation Kit EVA 100 105 EVA 100 is an evaluation kit to support a simple setting up operation of the receiver side when the EnOcean sensor transmitter device STM 250 is evaluated EVA 100 supports a rapid evaluation of the RCM 120 serial receiver mode e g via PC monitor and supports the fast development of applications Type EnOcean Ordering Code Scope of supply 100 RCM 110 and RCM 120 and detailed kit documentation EVA 100 H3004 G100 e Evaluation board EVA PCB e EnOcean radio devices STM 100 PTM e CD with RS232 PC link monitor software e 230V wall power sup
11. d 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 25 STM 250 User Manual V1 52 The power of unused energy enocean Table of Contents 1 GENERAL DESCRIPTION 1 1 Basic Functionality 1 2 Typical Applications 1 3 Features Overview 1 4 Dimensions of Reed Contact Unit 1 5 Dimensions of Magnet Housing 1 6 Environmental Conditions 1 7 Ordering Information 2 FUNCTIONAL DESCRIPTION 2 1 Block Diagram 2 2 Solar Energy Balance Calculation 2 3 STM 250 Radio Telegram 2 4 Serial Data Communication via Receiver Device RCM 120 2 5 Learn Pushbutton Learning of STM 250 to a Receiver 3 APPLICATIONS INFORMATION 3 1 Unit Mounting 3 2 Recommendations for Magnet Positioning 3 3 Transmission Range 3 4 CE Approval Requirements 3 5 FCC IC Approval Requirements 4 TOOLS 4 1 Evaluation Kit EVA 100 105 4 2 Field Intensity Meter EPM 100 5 DECLARATION OF CONFORMITY EnOcean GmbH A Anders Page 3 of 25 A aA A A ARA hi 10 12 15 17 18 19 19 19 21 21 22 24 24 24 25 STM 250 User Manual V1 52 The power of unused energy enocean 1 GENERAL DESCRIPTION STM 25
12. d simple data structure 9600 bps 1 start bit 8 bit data byte with LSB first 1 stop bit Figure 19 Receiver device RCM 120 When the RCM 120 receiver is set to Mode O Serial Interface it transfers out data blocks of information from the received RF telegrams 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 Type of STM 250 protocol is 1BS One Byte Sensor ORG byte 6 dec always EnOcean device type 1BS DATA_BYTES as follows Bit 7 Bit 3 Bit O LEARN STATE Bit 0 STATE STATE 1 magnet present Window CLOSED STATE 0 no magnet Window OPEN Bit 3 LEARN LEARN 1 LRN pushbutton not pressed LEARN 0 LRN pushbutton pressed Bits 2 3 and Bits 4 7 reserved DATA_BYTE2 DATA_BYTE1 DATA_BYTEO ID_BYTE3 device identifier Byte3 ID_BYTE2 device identifier Byte2 ID_BYTE1 device identifier Byte1 ID_BYTEO device identifier ByteO EnOcean GmbH A Anders Page 17 of 25 STM 250 User Manual V1 52 The power of unused energy enocean STATUS byte as follows Bit 7 Bit 3 Bit O RP_COUNTER Bits 0 3 RP COUNTER RP_COUNTER O original telegram RP_COUNTER gt 0 repeated telegram Bits 4 7 reserved 2 5 Learn Pushbutton Learning of STM 250 to a Receiver If necessary the sensor radio transmitter STM 250 can be easily made known to the rece
13. eees 25 up to 65 C 40 up to 85 C for 1h max RCN sg crc cnet entsatataavenssesenacnesdarereaecsaseseapkecstscnriaasuasienes 5 to 93 r h no condensate Protection class eeecisinovinonsescumerutransireriiaantiinene amntineniemeeemawnd IP 40 indoor use only 1 7 Ordering Information Type EnOcean Ordering Code Aa 250 EnOcean GmbH A Anders Page 9 of 25 STM 250 User Manual V1 52 The power of unused energy enocean 2 FUNCTIONAL DESCRIPTION 2 1 Block Diagram Transmitted at Wake up SOLAR CELL 32 bit unit ID Reed Contact position and ai wees LRN button status GOLDCAP RF TRANSMITTER ANTENNA Power Data POWER CONTROL REED amp WAKE UP TIMER __ Vake up CONTACT geeks y Spontaneously Ready Wake up power of PROCESSOR LRN Cyclic Wake up indicator ye pushbutton Figure 12 STM 250 block diagram 2 1 1 Device power supply Solar cell and Goldcap energy store The extremely powerful solar cell has been designed especially for the STM 250 for maximum unit performance at smallest dimensions The active solar area is divided into two to provide independent device power supplies a Small active area Main power supply b Big active area Gold Cap charging supply Please note that the capacity of the Goldcap may be reduced after long term storage of modules without energy supply It may take up to one day of charging until the full capacity is recovered EnOcean GmbH A Anders Pa
14. etal 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 4 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 the according documentation has been deposited at EnOcean The devices can be operated without notification and free of charge in the area of the European Union and in Switzerland The EnOcean GmbH A Anders Page 21 of 25 STM 250 User Manual V1 52 da of unused energy enocean 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 EnOcean RF devices must not be used with gain antennas since this may re
15. ge 10 of 25 STM 250 User Manual V1 52 da of unused energy enocean 2 1 2 Power control The power control supervises supply and charging status of the energy store It controls the power supply for wake up timer microprocessor and RF transmitter 2 1 3 Wake up timer Reed contact LRN pushbutton The wake up timer supervises status changes of the reed contact and learn pushbutton In addition it provides wake up time intervals for activating the processor e Extremely low power consumption during sleeping time period approx 25nA e The sleep mode is terminated immediately 1 by changing the status of the differential reed contact or 2 when pushing the learn pushbutton e Cyclic processor wake up time strongly depends e g on the Goldcap charging status 2 1 4 Processor Controls all functionalities after wake up First the status of the reed contact Open Closed and the LRN pushbutton are sampled After that RF signal transmission is triggered If the LRN pushbutton has been pressed the output LED is activated for indicating LRN signal sending 2 1 5 RF transmitter The radio transmitter is powered up by the processor and sends e 32 bit ID e Status of the Reed Contact open closed e Status of the LRN pushbutton pressed released EnOcean GmbH A Anders Page 11 of 25 STM 250 User Manual V1 52 da of unused energy enocean 2 2 Solar Energy Balance Calculation In the following diagrams you will find
16. iver RCM 120 that has been set into learn mode by simply triggering a STM 250 radio signal for example by operating the LRN pushbutton STM 250 devices that are currently known to the RCM 120 receiver or that are already known by the receiver are signed within H_SEQ of the serial telegram For details see the RCM 110 120 User Manual but please pay attention to the following There are two fundamental methods for transmitter assignments to a receiver 1 Manual input of the transmitter ID into the receiver system 2 The receiver system automatically learns the ID of a received radio telegram within a special Learn Mode routine In the second case note that cyclic sending sensors can be unintentionally learned especially if there are some sensors in operation at the same time Because of that it is recommended to implement a learn procedure in the system that reacts to a dedicated Learn Telegram only This special learn procedure has to be implemented by the system intelligence after RCM 120 serial interface the RCM 120 learning procedure does not support the STM 250 Learn Pushbutton The STM 250 Learn Telegram is characterized by the unambiguously defined Bit 3 within DATA_BYTES EnOcean GmbH A Anders Page 18 of 25 STM 250 User Manual V1 52 e The power of unused energy enocean 3 APPLICATIONS INFORMATION 3 1 Unit Mounting Both the EnOcean Reed Contact as well as the EnOcean Magnet are very thin and flat
17. operation and control applications Because the RF transmitters are self powered no batteries maintenance free RF systems can be implemented 1 3 Features Overview Power supply cccceeceeeeeeeeeeeeeeeeeeas provided by an optical cell Solar Power Generator ANCONDA atinctccovenedcsnscaecree sconces rans aoouen meek EEE EE internal helix antenna Frequency transmission POWEP cccccseeeeeeeeeeeeeeeeeneeeeueeees 868 3 MHz 10 mW max Data rate channel bandwidth modulation type 120 kbps 280 kHz ASK Telegram packet length sub telegram cccccccceeeeee sence eee eeeeeaeees 0 9 ms 5 No of redundant packets 3 packets within about 40ms delay effected at random Transmission range cc cece cece eee e eee e tees eeeeeeeeeeeeeeeeees 300m free field typ 30m indoor Device identifier ccc cccceeeeeeeeeeeeeeeeeeeeenaaes individual 32 bit ID factory programmed EnOcean telegram type cccccceeeceee cece ee eeeeeeeeeeeeeeeeteeeeeeeeennes 1BS One Byte Sensor Spontaneous wake up cccceeeeeeeees 1 x internal reed contact switch over time gt 80ms Cyclic Presence Signal cccccceeeeeeeeeeeees every 5 30 minutes typ every 15 minutes Sleep mode Current CONSUMPTION cccccccc cece eee e eee eee eeeeeeee eee eeeeeeeaneeeeeneeenes z 25 nA IUMO aa EEA E E E A 200 Ix up to 100000 Ix Operation startup time with empty energ
18. ormity with the technical requirements of the standards and the provisions of the essential requirements of the Directives detailed below Electromagnetic Compatibility Directive 89 336 EC Radio and Telecommunications Terminal Equipment Directive R amp TTE 1999 5 EC 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 Genera Manager Dr Matthias Heiden Markus Brehier _ Signature i N N PES N k tg o HLA UAL A F d 4 ge Page 25 of 25 STM 250 User Manual V1 52
19. ply for EVA PCB e Convenient equipment case EVA 105 H3004 G105 e US version 110V 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 24 of 25 STM 250 User Manual V1 52 The power of unused energy enocean 5 DECLARATION OF CONFORMITY Declare Directives Standards EnOcean GmbH A Anders EnOcean GmbH Kolpingring 18a The power af unused anergy D 82041 Oberhaching e nN OC e a n Www enocean com Declaration of Conformity CE EnOcean GmbH Kolpingring 18a D 82041 Oberhaching Germany 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 conf
20. sult in allowed ERP or spurious emission levels being exceeded 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 Ifthe STM 250 transmitter is used according to the regulations of the 868 3 MHz band a so called Duty Cycle of 1 per hour must not be exceeded Permanent transmitters such as radio earphones are not allowed For approval aspects it must be ensured that the STM 250 reed contact is not operated more than 13 000 times per hour e g window opened or window closed For this calculation the extraordinary short telegram length is considered including all subtelegrams see Chapter 2 3 3 Also a tolerance of 5 in telegram length is included 3 5 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 my not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Trade Name STM 250
21. the energy store operation characteristics under the condition that the number of reed contact operations can be neglected compared to cyclic sending times of the presence signal normal operation in practice Negligible implies that reed contact operations are less than 10 times a day Notes e Configuration of the Goldcap energy store To obtain the Goldcap nominal capacity some charging discharging cycles are needed Because of that the initial operating time at total darkness could be shorter as given below e Continuously operation at temperatures higher than 50 C could decrease the capacity of the Goldcap during lifetime This will result in shorter charging times and shorter operating times in total darkness 2 2 1 Initial loading time for one night operation Illumination time for loading empty energy store to 14 h operation in total darkness typ values 20 he 16 D a 12 ann E 8 8 bi O N 4 0 100 1000 illumination lux Figure 13 EnOcean GmbH A Anders Page 12 of 25 STM 250 User Manual V1 52 The power of unused energy enocean 2 2 2 Reload time for one night operation Illumination time for reloading energy store from working limit to 14 h operation in total darkness typ values reload time minutes 100 1000 illumination lux
22. 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 transmitted signal hits the wall is very important The effective wall thickness and with it the signal attenuation varies according to this angle Signals should be transmitted as directly as possible through the wall Wall niches should be avoided Other factors restricting transmission range e Magnet contact mounted on metal surfaces Please don t mount the receiver at the window front side because there is a clear loss of transmission range in plane direction of the metal window frame radio characteristic e Hollow lightweight walls filled with insulating wool on metal foil e False ceilings with panels of m
23. to the Reed Contact housing The distance between housing and magnet should be less than 5 mm EnOcean GmbH A Anders Page 19 of 25 STM 250 User Manual V1 52 The power of unused energy enocean Reed contact marking As Te Seleen pe Eat 10 Figure 21 Planar positioning of the Magnet Typical for door mounting The round pole magnet can be removed from the magnet housing This enables smart embedding into wooden window casements in square position to the Reed Contact housing But note that the round pole must be mounted beside the reed contact marking as follows or Figure 22 Pole faced positioning of Magnet Typical for mounting at wooden window casements The distance between housing and magnet should be less than 4 mm when using this mounting position Attention Always take care for sufficient distance of the magnet to magnetic data carriers e g credit cards Data could be erased EnOcean GmbH A Anders Page 20 of 25 STM 250 User Manual V1 52 e The power of unused energy enocean 3 3 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
24. y store ccceeee ees lt 10 min 400 Ix Illumination time for loading empty energy store to 14h operation in total darkness sipcunsire ce reen EE EEE z 5h 1000 Ix 13 h 400 Ix Illumination time for reloading energy store from device working limit to 14h operation in total darkness cccccccesseeeeeeeeeeeeeees lt 20 min 400 Ix lt 1 h 100 Ix EnOcean GmbH A Anders Page 5 of 25 STM 250 User Manual V1 52 da of unused energy enocean Maximum operation time during total darkness usssssssssssrnrrsrrsrrnren gt 6 days 1 Energy store is filled up 400 Ix to 90 of capacity Teach in pushbutton cee eee e eee on PCB operating at open case only Indicator for teach in telegram transmission Light Emitting Diode on the PCB beside teach in pushbutton A change of the REED CONTACT status or pushing the teach in button will wake the transmitter unit to send a radio telegram immediately reed contact position teach in pushbutton status unique 32 bit sensor ID checksum In addition a cyclic PRESENCE SIGNAL is sent to announce the contact status even in case of no input signal changes sign of life Between the wake up phases the device is in sleep mode for minimum power consumption on average some nA only 1 4 Dimensions of Reed Contact Unit Dimensions of Reed Contact Unit aaaeeeaa base 110 x 19 mm x height 15 mm Weight of Reed Contact Unit
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