User Manual Radio Magnet Contact STM 250J/ 255J
Contents
1. USER MANUAL 1 GENERAL DESCRIPTION 1 1 Basic functionality reless enocean STM 250 255 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 STM 2503 255J supervises an integrated reed contact and reports every status change immediately open closed In addition a sign of life signal is transmitted every 20 30 minutes A LRN button is pre installed on the PCB When this button is pressed through a hole in the back plate a special teach in signal is sent The reed contact housing and the magnet housing are very small This means that the EnOcean magnet con tact is unobtrusively mountable at every window frame made of aluminum plastic or wood STM 250J 255J is designed and qualified for the indoor use in building automation amp instal lation not for industrial applications in cause of ESD protection Typical applications are window flap and door monitoring STM 255J provides enhanced security features with encrypted communication 1 2 Technical data Antenna Frequency EnOcean Equipment Profile Data rate Modulation type Conducted Output Power Power Supply Initial operation time in darkness 25 C Operation start up time with empty energy store Reed contact Radio Regulations http www enocean alliance org eep P2. Keep off area around the code 2 pixel up down left and right Pixel size min 4x4 points per pixel 600dpi x 600dpi Resolution 1 print point 0 0423mm x 0 0423mm 1 pixel 0 1693mm x 0 1693mm 2013 EnOcean www enocean com STM 250J STM 255J OEM User Manual V1 0 Page 14 15 USER MANUAL Green Smart Wireless enocean 4 AGENCY CERTIFICATIONS The radio modules inside STM 250J module STM 429J and STM 255J module STM 425J have been designed and tested to fulfil the approval requirements for ARIB STD T108 based on the built in firmware They carry the following marking 1 R 003 130180 22 R The OEM must refer to this marking in related product documentation These products are offered solely as finished products for OEM customers and without an EnOcean label The OEM partners as the instance responsible for marketing them must add certifications and product identification EnOcean assumes no responsibility of any kind for OEM products to end users 2013 EnOcean www enocean com STM 250J STM 255J OEM User Manual V1 0 Page 15 15
3. is sent to announce the contact status even in case of no input signal changes This signal trans mitted every 20 30 min affected at random The transmit indicator LED flashes briefly at every radio transmission Between the wake up phases the device is in sleep mode for minimum power consump tion 2 2 Radio telegram STM 250 255 transmits a radio telegram according to EnOcean Equipment Profile EEP D5 00 01 as defined in the EnOcean Equipment Profiles specification http www enocean alliance org eep 2 2 1 Encrypted communication STM 255J only In STM 255 the data link DL content is always protected with advanced security features Normal operation DL and also teach in DL are protected in the same way The security fea tures used are configured by the Security Level format SLF This parameter is set by de fault to the highest possible level m 24 bit RLC E No RLC tx m 4 byte CMAC E VAES encryption 2013 EnOcean www enocean com STM 250J STM 255J OEM User Manual V1 0 Page 8 15 USER MANUAL Green Smart Wireless enocearr STM 250177 STM 255 OEM To add security features to the communication the normal operation DL and teach in DL are encapsulated into a secured telegram The data content of the telegram is not changed Please refer to the EnOcean Security Specification for details 2 2 2 Security Teach In STM 255J only To enable security communication the STM 255J has to send a security tea
4. USER MANUAL Green Smart Wireless enocearn December 18 2013 Observe precautions Electrostatic sensitive devices Patent protected WO98 36395 DE 100 25 561 DE 101 50 128 WO 2004 051591 DE 103 01 678 A1 DE 10309334 WO 04 109236 WO 05 096482 WO 02 095707 US 6 747 573 US 7 019 241 EnOcean GmbH Phone 49 89 67 34 689 0 Subject to modifications Kolpingring 18a Fax 49 89 67 34 689 50 STM 250J STM 255J OEM User Manual V1 0 62041 Oberhaching info enocean com December 18 2013 1 29 PM Germany WWW enocean com Page 1 15 USER MANUAL Green Smart Wireless enocearr STM 25017 STM 255 OEM REVISION HISTORY The following major modifications and improvements have been made to the first version of this document No Major Changes Initial version mS 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 characteris tics 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 web site http www enocean com As far as patents or other rights of third parties are concerned liability is only assumed for modules not for the described applicatio
5. ces up to 30 loss of transmission range Hollow lightweight walls filled with insulating wool on metal foil m False ceilings with panels of metal or carbon fiber m Lead glass or glass with metal coating steel furniture The distance between EnOcean receivers and other transmitting devices such as comput ers audio and video equipment that also emit high frequency signals should be at least 0 5 m A summarized application note to determine the transmission range within buildings is available as download from www enocean com 3 4 Connecting an external backup battery In case there is not sufficient light available for operation with solar cell an external 3 V Lithium backup battery can be connected to the PCB inside the module at the soldering pads shown below Energy ES otore GAD AAMT LEM uA EN ay 2013 EnOcean www enocean com STM 250J STM 255J OEM User Manual V1 0 Page 13 15 USER MANUAL Green Smart Wireless enocean 3 5 PSK Labelling For the PSK information a specific QR code is placed on the module itself Information of the QR code 3 5 1 Included Information ID XXXXXXXX PK YYYY Y CCY Y Y Y Y Y YYCCCYY Y Y YY YY Y Y YY Y Y ID 3 CHARS XX 8 CHARS FREESPACE 1 CHARS PK 3 CHARS YY 32 CHARS 47 CHARS 3 5 2 QR Code Specification QR Code version 3 29x29 pixel Error correction level Q 25 error correction Mode Alphanumeric Mode Character capacity 47
6. ch in telegram to the other communication partner and so inform him about the used security profile keys and initial RLC The security teach in has to take place before any other communication can be executed profile teach in included To trigger the transmission of the teach in telegram the LRN button is pressed The security teach in telegram is transmitted before the profile teach in The following profile teach in telegram is already protected by advanced security features The process of sending security teach in telegram and profile teach in telegram is triggered by once pressing the LRN button The behaviour of the LRN button is following 1 Button is pressed a If released in period lt 5 seconds then PSK Security Teach in is performed Please refer to chapter below for details b If released in period gt 5 seconds then plain text Security Teach in is per formed 2 Profile teach in is performed 2 2 2 1 PSK Security Teach in The Security Teach in telegram carries the information of KEY and RLC This information is either sent as plain text as is or it is protected by the pre shared key PSK The PSK must be printed on the transmitting device To use PSK teach in the PSK must be read by the end user and entered into the other communication partner For this purpose the EnOcean radio interface cannot be used The PSK can be entered trough a user interface or semi automated by a code reader For details on the PSK teach in pl
7. ease refer to the EnOcean Security Specification 2 3 Transmit timing The setup of the transmission timing allows avoiding possible collisions with data packages of other EnOcean transmitters as well as disturbances from the environment With each transmission cycle 3 identical subtelegrams are transmitted within 40 ms The transmis sion of a subtelegram lasts approximately 1 ms The delay between the three transmission bursts is affected at random 2 4 Energy consumption Charge needed for one measurement and transmit cycle 80 uC Charge needed for one measurement cycle without transmit 10 uC 2013 EnOcean www enocean com STM 250J STM 255J OEM User Manual V1 0 Page 9 15 USER MANUAL Green Smart Wireless enocean STM 250177 STM 255 OEM Calculations are performed on the basis of electric charges because of the internal linear voltage regulator of the module Energy consumption varies with voltage of the energy storage while consumption of electric charge is constant From these values the following typical performance parameters at room temperature have been calculated Wake and Operation Time in darkness transmit h when storage fully Required reload time h at 200 lux cycle s charged within 24 h for continuous operation 1500 175 1 8 Assumptions m Internal storage PAS614L VL3 after several days of operation at good illumination level with 0 25 F Umax 3 2 V Umin 2 3 V T 25 C m Consumption Tra
8. itenaincatesteecasescincnaasdsacntenseadnsastiersiaianacsser sien 8 At Leeds CTI I TT TI UU TIITTTDEOEUUTRTTEEUTEUMUSETTT 8 2 2 Radio telegrealt wcssaexsuotadaa eVrRpR aa RETE RYRIERRDryEEE EE AA RV YPeNOR VUE XE UKFR ERE VER 8 2 2 1 Encrypted communication STM 255 only ssssseeeeeeenn nnnm nnns 8 2 2 2 Security Teach In STM 255 Oy cecccccce cece seen eeeeeeeeeeesseeeessnnnaanneeeeesnegs 9 2 2 2 1 PSK Security Teach in cccccssccccuessccccnscscccausseucureseeecensessccausssuuaterensecness 9 2 3 Tan Shle CMW o aeoie sin ccescsencovseceus E PiSURIMEEPU RIULU ERE ELDIDA seed seeeccicuens RM DUE RUE DS INE 9 LeE a gspAes iqssep tT M 9 APPLICATIONS INFORMATION assesses A 11 L UME AOUN eeoa r E T Eit 11 3 2 Recommendations for Magnet positioning ccsssssseeee nnne nnn 11 3 9 TIFeDSmiSSIOH WANG Cave ce sois tense OR reu eva DU IEEE OE aware obdecg OE EDU E RD E OMNE ME 13 3 4 Connecting an external backup battery ssssseesseeeeee emen nnn nnn 13 Si PO LADS inis T T T UTE UEUTTEEESTEUTTTTT 14 3 5 1 Included Informatio sessesexeniaaavsVaTX a A VEPERERTESERATATRTISPATATOTREA A TRTRP YT aRGEa Ta Sia 14 9 5 2 ORCO SDSCITESEI OPE cig ane Pre anager anaes KNIE aa ee ee IE XM TUE 14 BGBNCICERTIFICRIIONS avbsebsudtmmusveREI S PigU I P UMP PP 15 2013 EnOcean www enocean com STM 250J STM 255J OEM User Manual V1 0 Page 3 15
9. nal white PC ABS Top view Side view mm Front view Bottom view 2013 EnOcean www enocean com STM 250J STM 255J OEM User Manual V1 0 Page 6 15 USER MANUAL Green Smart Wireless enocean STM 25017 STM 255 OEM 1 4 Environmental conditions Operating temperature 20 C 60 C Storage temperature 20 C 60 C recommended 10 C 30 C lt 60 r h Shelf life in absolute darkness 36 months after delivery Humidity 0 93 r h non condensing Protection class IP 40 indoor use only 1 5 Ordering Information Type Ordering Code Packaging Units STM 250J STM 255 S3061 C255 100 pecs Recommended for maximum life of energy storage capacitor Deep discharge of the PAS614L energy storage leads to degradation of performance Therefore products have to be taken into operation after 36 months At least the PAS614L needs to be recharged to 2 1V 2013 EnOcean www enocean com STM 250J STM 255J OEM User Manual V1 0 Page 7 15 USER MANUAL Green Smart Wireless enocearn 2 FUNCTIONAL DESCRIPTION 2 1 Block diagram Helical antenna Transmit Reed Indicator contact LRN button A change of the reed contact status or pushing the LRN button will wake the transmitter unit to send a radio telegram immediately reed contact position LRN push button status unique 32 bit sensor ID checksum In addition a redundant retransmission signal
10. ns processes and circuits EnOcean does not assume responsibility for use of modules described and limits its liability to the replacement of modules determined to be defective due to workmanship Devices or systems contain ing RF components must meet the essential requirements of the local legal authorities The modules 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 modules 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 2013 EnOcean www enocean com STM 250J STM 255J OEM User Manual V1 0 Page 2 15 USER MANUAL Green Smart Wireless enocean TABLE OF CONTENT 1 GENERAL DESCRIPTION 2ossssvisidquubsregresvimintave Verdi dmt ndtex a PE CU IA PET DIEM PER E PDPI UP PE 4 1 3 SS TUbctHoBellb V asiatica qun Pap IM Dat UMS RC ME RR RES aD RR ER 4 B TOMC a da I T T NUTUS 4 1 5 Physical CINICH SIONS caso apnea CAN REIR SUCH KM SPERA E ADUR UE DARET UNU PAIR IE 5 1 5 1 RECO COR CAC IDEE isscapipbpbtb Deed EUNI IUUD DNE DINER DUREE Fan eaeN 5 13 2 MAGIC CNA arpa ccrene cee sweater stan itta catu NNNM E EUR ii Net 6 LA Environmental COMGILIONS eoi bx Rd rbd NAM NM USE Ms I usd Mag 7 La OCS TAG AA OT I Hio ETT T LT TY 7 FUNCTIONAL DESCRIPTION cccaccatias
11. nsmit cycle 80 uC measurement cycle 10 uC m Pre installed solar cell ECS 300 operating values 3 V and 5 uA 200 lux fluorescent light m Current proportional to illumination level not true at very low levels These values are calculated the accuracy is about 20 The performance varies over temperature and may be strongly reduced at extreme temperatures 2013 EnOcean www enocean com STM 250J STM 255J OEM User Manual V1 0 Page 10 15 USER MANUAL Green Smart Wireless enocearr STM 25017 STM 255 OEM 3 APPLICATIONS INFORMATION 3 1 Unit mounting Both the reed contact unit as well as the magnet contact unit is very thin and flat This means that they are unobtrusively mountable at every window or doorframe made of alu minum 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 downward In this mounting position the STM 250J 255J housing offers protection against splashing water drops Mounting STM 250J 255J on metal surfaces or aluminum window frames will reduce the transmission range Therefore please note that a radio receiver unit should not be mounted in the same plane as the STM 250J 255J base plate because in extension of the metal sur face 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
12. 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 certain application The following figures for expected transmission range are considered by using a PTM a STM or a TCM radio transmitter device and the TCM radio receiver device with preinstalled whip antenna and may be used as a rough guide only Line of sight connections Typically 30 m range in corridors up to 100 m in halls Plasterboard walls dry wood Typically 30 m range through max 5 walls Ferroconcrete walls ceilings Typically 10 m range through max 1 ceiling 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 avoid ed Other factors restricting transmission range Switch mounted on metal surfa
13. re installed helical antenna installed 928 35 MHz EEP D5 00 01 125 kbps FSK typ 0 dBm Pre installed solar cell Illumination 50 100000 lux typ 6 days min 90 hours if energy storage fully charged transmission of telegram every 25 min on average typ 2 5 min 400 lux 25 C incandescent or fluorescent light 1x internal Meder MK23 90 BV14496 or MKO1 I ARIB STD T108 Full performance of the PAS614L energy storage is achieved after several days of opera tion up to two weeks at good illumination level Performance degrades over life time es pecially if energy storage is exposed to higher temperatures Each 10 K drop in tempera ture doubles the expected life span 2013 EnOcean www enocean com STM 250J STM 255J OEM User Manual V1 0 Page 4 15 USER MANUAL Green Smart Wireless enocearnr 1 3 Physical dimensions 1 3 1 Reed contact unit 110 x 19 x 15 mm signal white PC ABS Dimensions Color of housing Material of housing Side view Front view Color may change by strong irradiation of sun light 2013 EnOcean www enocean com STM 250J STM 255J OEM User Manual V1 0 Page 5 15 USER MANUAL Green Smart Wireless enocearn Access to teach in pushbutton B d NO h HERE 5 N ALJ a i C XI ii i E 485 H ES EE Bottom view 1 3 2 Magnet unit Dimensions Color of housing Material of housing 37x10x 5mm sig
14. window front side 3 2 Recommendations for magnet positioning The flat magnet should be positioned by facing the housing in the middle of the reed con tact marking as follows Reed contact marking Righted positioning of the magnet Typical for window mounting The magnet can be positioned in vertical or in horizontal position to the reed contact hous ing The distance between housing and magnet should be less than 5 mm Reed contact marking Planar positioning of the magnet Typical for door mounting 2013 EnOcean www enocean com STM 250J STM 255J OEM User Manual V1 0 Page 11 15 USER MANUAL Green Smart Wireless enocean The round pole magnet can be removed from the magnet housing This enables smart em bedding 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 Se oH Et or 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 Always take care for sufficient distance of the magnet to magnetic data carri ers e g credit cards Data could be erased 2013 EnOcean www enocean com STM 250J STM 255J OEM User Manual V1 0 Page 12 15 USER MANUAL Green Smart Wireless enocearr STM 25017 STM 255 OEM 3 3 Transmission
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