EnOcean TCM515B 2.4 GHz Bluetooth Low Energy (BLE) Transceiver User Manual
EnOcean GmbH 2.4 GHz Bluetooth Low Energy (BLE) Transceiver
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USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver 14 December 2017 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 © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 1/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver REVISION HISTORY The following major modifications and improvements have been made to this document: Version 0.1 0.2 0.3 0.4 0.5 Author MKA MKA MKA RS RS 0.6 RS Reviewer MKA MKA MKA MKA MKA Date 15.02.2017 14.07.2017 19.09.2017 19.09.2017 05.10.2017 Major Changes Initial Release Update regarding operation conditions Added detailed pin mapping Added antenna options and descriptions Added FCC labelling requirements, RF exposure and distance requirements, FCC and ISED certificates 14.12.2017 Updated chapters to RF exposure 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 modules, not for the described applications, 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 containing 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. © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 2/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver TABLE OF CONTENT GENERAL DESCRIPTION ................................................................................. 5 1.1 Basic functionality ......................................................................................... 5 1.2 Technical data............................................................................................... 6 1.3 Physical dimensions ....................................................................................... 6 1.4 Environmental conditions ............................................................................... 6 1.5 Packaging information.................................................................................... 6 1.6 Ordering information ..................................................................................... 6 FUNCTIONAL INFORMATION ........................................................................... 7 2.1 TCM 515B Device Interface ............................................................................. 7 2.1.1 Signal Description .................................................................................. 8 2.2 High-level operation principle .......................................................................... 8 2.3 Radio functionality ......................................................................................... 9 2.4 Radio transmission sequence ........................................................................ 10 2.5 Radio reception sequence ............................................................................. 10 2.6 User-defined radio channels.......................................................................... 10 Telegram format ......................................................................................... 11 3.1 Preamble .................................................................................................... 11 3.2 Access Address ........................................................................................... 11 3.3 Header ....................................................................................................... 11 3.4 Source address ........................................................................................... 12 3.4.1 Static source address mode .................................................................. 12 3.4.2 Private resolvable source address mode ................................................. 13 3.5 Check Sum ................................................................................................. 14 3.6 Payload ...................................................................................................... 15 3.7 Sensor status encoding ................................................................................ 16 3.7.1 Sensor Data Descriptor......................................................................... 16 3.7.2 Sensor Status...................................................................................... 17 3.8 TCM 515B telegram authentication ................................................................ 18 3.9 4.1 ESP3 Interface ............................................................................................ 19 3.9.1 ESP3 Data Format................................................................................ 19 DEVICE INTEGRATION ................................................................................. 20 Recommended PCB Footprint ........................................................................ 20 4.2 Antenna options .......................................................................................... 21 4.2.1 General antenna requirements for TCM 515B .......................................... 21 4.2.2 Specific antenna requirements for European Union................................... 21 4.2.3 Specific antenna requirements for US / Canada ....................................... 21 4.2.4 Antenna Description ............................................................................. 21 4.2.4.1 Whip Antenna ................................................................................... 21 4.2.4.2 Meandered PCB Antenna .................................................................... 23 4.2.4.3 Dipole antenna requirements .............................................................. 25 4.3 Soldering information .................................................................................. 29 © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 3/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver 4.4 Device handling instructions ......................................................................... 29 4.5 Device operation instructions ........................................................................ 30 4.6 Tape & Reel specification .............................................................................. 31 APPLICATION INFORMATION ........................................................................ 32 5.1 Transmission range ............................................................................................ 32 REGULATORY INFORMATION......................................................................... 33 6.1 CE (RED) for European Union ........................................................................ 33 6.2 FCC (United States) Certificate ...................................................................... 34 6.2.1 FCC (United States) regulatory statement ............................................... 35 6.2.2 FCC (United States) labeling requirements .............................................. 35 6.2.3 FCC (United States) RF exposure statement ............................................ 35 6.3 ISED (Industry Canada) Technical Acceptance Certificate ................................. 36 6.3.1 ISED (Industry Canada) regulatory statement ......................................... 37 6.3.2 ISED (Industry Canada) RF exposure statement ...................................... 37 © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 4/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver GENERAL DESCRIPTION 1.1 Basic functionality TCM 515B provides radio transceiver functionality (telegram transmission and reception) according to the Bluetooth Low Energy standard in the 2.4 GHz radio band. TCM 515B receives and transmits radio telegrams based on a whip or PCB antenna connected via the host PCB. TCM 515B is primarily intended for use within energy harvesting wireless sensors where it will provide the required radio functionality. To meet this requirement, TCM 515B provides a radio application programming interface (API) for transmission and reception of 2.4 GHz BLE radio telegrams. This radio API can be used by sensor applications running on TCM 515B to transmit and receive radio telegrams. Additionally, TCM 515B provides an ESP3 interface to an external host which can be used to transmit and receive data tele-grams. TCM 515B provides an I2C interface which can be used to connect external sensors. TCM 515B is implemented as 31 pin reflow-solderable module in an optimized form factor to enable size constrained applications. The module design is mechanically compatible with the other members of the TCM 515 radio transceiver family to enable reuse. Figure 1 below shows TCM 515B. Figure 1 – TCM 515B outline © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 5/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver 1.2 Technical data Antenna Supported Radio Frequency Range Default Radio Channels Receiver Sensitivity (at 25°C) (1) Transmit Power (at 25°C) Power Supply Serial Host Interface Current Consumption (typ, at 25°C) Module Dimensions External 50 Ohm or whip antenna (connected at host board) 2402 … 2480 MHz Advertising on Channel 37, 38 and 39 Minimum: -92dBm / Typical: –95 dBm Adjustable up to +4 dBm 3.3 V +- 10% UART according to ESP3 Standard with Turbo Mode Option 15 mA 19.0 x 14.7 x 3.0 mm (each dimension +-0.3 mm) Note (1): Receiver sensitivity is based on the combination of 3 subtelegrams 1.3 Physical dimensions Module Dimensions 19.0 x 14.7 x 3.0 mm (each dimension +-0.3 mm) Module Weight 1.4 1g Environmental conditions Operating Temperature -25°C ... 85°C Storage Temperature -25°C ... 85°C Humidity 1.5 0% to 95% r.h. (non-condensing) Packaging information Packaging Unit 250 units Packaging Method 1.6 Tape and reel Ordering information Type TCM 515B Ordering Code S3223-K515 © 2017 EnOcean | www.enocean.com Frequency 2.4 GHz (BLE) F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 6/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver FUNCTIONAL INFORMATION 2.1 TCM 515B Device Interface TCM 515B implements a 31 pin reflow-solderable interface. Solder mask data is available on request from EnOcean. The pin assignment (as seen from the top of the device) is shown in Figure 2 below. Figure 2 – TCM 515B device interface Table 1 below summarizes the signal assignment. PIN NAME PIN NAME PIN NAME GND 12 Digital IO 23 GND ANTENNA (50 Ohms) 13 Digital IO 24 Debug GND 14 Digital IO 25 Debug Digital IO 15 GND 26 Digital IO Digital IO 16 Analog / Digital IO 27 Digital IO GND 17 Analog / Digital IO 28 Digital IO Analog / Digital IO 18 I2C Data 29 Digital IO Analog / Digital IO 19 I2C CLK 30 Digital IO Analog / Digital IO / 32 kHz OSC 20 UART RX (Input) 31 TURBO 10 Analog / Digital IO / 32 kHz OSC 21 UART TX (Output) 11 Analog/ Digital IO 22 VDD Table 1 - TCM 515B device interface pin assignment © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 7/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver 2.1.1 Signal Description TCM 515B is supplied by the VDD and GND Pins. The required supply voltage is 3.3V with a tolerance of no more than +-10%. TCM 515B receives and transmits data based on a 50Ω whip antenna connected to its ANTENNA input (Pin 2). TCM 515B communicates with the external host using the standard ESP3 serial (UART) interface based on the signals UART_TX (Pin 21, direction from TCM 515B to external host) and UART_RX (Pin 20, direction from external host to TCM 51Z). The default interface speed of the ESP3 interface is 57600 bit per second (the exact speed is 57347 Bit per second, a deviation of -0.04%). It is possible to select faster communication speeds of 115200, 230400 and 460800 bit per second during operation using the ESP3 CO_SET_BAUDRATE command. Additionally it is possible to change the default ESP3 interface speed at power up from 57.600 Bit per second to 460.800 Bit per second by connecting the TURBO input (Pin 31) to Ground. Subsequent modification of the interface speed during operation using the CO_SET_BAUDRATE command is always possible irrespective of the state of the TURBO input pin. TCM 515B provides one or two I2C interfaces as primarily means to connect external sensors. Additionally, it provides digital and analog inputs and outputs as well as the option for an SPI interface. 2.2 High-level operation principle In receive mode, TCM 515B forwards the content of received BLE radio telegrams (which pass frame check sum validation) unmodified to the sensor application SW or an external host via the ESP3 interface. The sensor application can use the data of received telegrams for instance to adjust parameters such as update intervals. In transmit mode, TCM 515B receives from the application SW or an external host the precomputed message payload. TCM 515B then calculates the frame check sum and appends it to the message. The full frame (including the Preamble and Start of Frame fields) will then be transmitted as BLE radio telegram (TX mode). The sensor application uses an internal or external timer to periodically wake-up and check the status of the connected sensors. Based on this status information, it will decide if transmission of a telegram is necessary and if so forward it to the radio routine by means of its API. © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 8/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver 2.3 Radio functionality TCM 515B transmits and receives advertising telegrams within the 2.4 GHz radio frequency band (2402MHz … 2480MHz) using the BLE advertising frame format. By default, TCM 515B will use the three BLE advertising channels (BLE Channel 37, 38 and 39) defined for transmission and reception. The transmission of a radio telegram on these three advertising channels is called an Advertising Event. Use of different radio channels within the frequency band from 2402 MHz to 2480 MHz is possible and can be configured by the application software or the external host (via ESP3 interface). Table 2 below summarizes radio channels supported by TCM 515B. Radio Channel 37 10 38 11 12 36 39 40 41 77 78 Frequency Channel Type BLE Radio Channels 2402 MHz BLE Advertising Channel 2404 MHz BLE Data Channel 2406 MHz BLE Data Channel … 2424 MHz BLE Data Channel 2426 MHz BLE Advertising Channel 2428 MHz BLE Data Channel 2430 MHz BLE Data Channel … 2478 MHz BLE Data Channel 2480 MHz BLE Advertising Channel Custom Radio Channels 2403 MHz Custom Radio Channel 2405 MHz Custom Radio Channel … 2477 MHz Custom Radio Channel 2479 MHz Custom Radio Channel Table 2 – TCM 515B supported radio channels © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 9/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver 2.4 Radio transmission sequence TCM 515B transmits telegrams in its standard configuration by using so-called Advertising Events. An advertising event is defined as the transmission of the same radio telegram on all selected radio channels (by default this would be on BLE Channel 37, 38 and 39) one after another with minimum delay in between. For reliability reasons, TCM 515B will send three redundant advertising events for each transmission. The resulting transmission sequence is shown in Figure 3 below. Figure 3 – Default radio transmission sequence 2.5 Radio reception sequence TCM 515B receives radio telegrams in its standard configuration by monitoring the Advertising Channels (Channel 37, 38 and 39). Alternative channels can be selected via the radio API or the ESP3 interface. TCM 515B will continuously scan these channels one after the other for valid data telegrams. The time spent on each channel is configurable. 2.6 User-defined radio channels In certain situations it might be desirable to transmit and receive radio telegrams on channels other than the three advertising channels. TCM 515B therefore allows to select the radio channels to be used for the transmission and reception. The selection of the radio channels is done by the application SW using the radio API or the external host using the ESP3 interface. © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 10/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver Telegram format TCM 515B transmits and receives radio telegrams in the 2.4 GHz band according to BLE frame structure. For detailed information about the BLE standard, please refer to the applicable specifications. Figure 4 below summarizes the BLE frame structure. Figure 4 – BLE frame structure The content of these fields is described in more detail below. 3.1 Preamble The BLE Preamble is 1 byte long and identifies the start of the BLE frame. The value of the BLE Preamble is always set to 0xAA. 3.2 Access Address The 4 byte BLE Access Address identifies the radio telegram type. For advertising frames, the value of the Access Address is always set to 0x8E89BED6. 3.3 Header The BLE Header identifies certain radio telegram parameters. Figure 5 below shows the structure of the BLE header. Figure 5 – BLE header structure © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 11/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver 3.4 Source address The 6 byte BLE Source Address (MAC address) uniquely identifies each TCM 515B product. TCM 515B supports two source address modes: Static Source Address mode (default) In this mode, the source address is constant (but its lower 32 bit can be configured via radio API) Private Resolvable Address mode (NFC configurable) In this mode, the source address changes for each transmission TCM 515B uses by default the Static Source Address mode. Private Resolvable Address mode can be selected via the radio API. These two address modes are described in the following chapters. 3.4.1 Static source address mode By default, TCM 515B uses static source addresses meaning that the source address is constant during normal operation. The structure of TCM 515B static addresses is as follows: The upper 2 bytes of the source address are used to identify the device type and set to 0xE500 to designate EnOcean STM 500 multi-sensor type. These two bytes cannot be changed. The lower 4 bytes are uniquely assigned to each device. Figure 6 below illustrates the static address structure used by TCM 515B. Figure 6 – BLE static source address structure © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 12/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver 3.4.2 Private resolvable source address mode For some applications it is desirable to modify (rotate) the source address used by TCM 515B in order to prevent tracking of its radio transmissions. At the same time, each TCM 515B device must remain uniquely identifiable by the receiver. To achieve these goals, TCM 515B can be configured via radio API to use random resolvable private addresses. Using random resolvable private addresses requires that both TCM 515B and the receiver both know a common key – the so-called Identity Resolution Key (IRK). TCM 515B uses its device-unique random key as identity resolution key. For resolvable private addresses, the 48 bit address field is split into two sub-fields: prand This field contains a random number which always starts (two most significant bits) with 0b10. The prand value is changed for each telegram that is transmitted. Individual advertising events used to transmit one telegram use the same prand value. hash This field contains a verification value (hash) generated from prand using the IRK The structure of a random resolvable private address is shown in Figure 7 below. Figure 7 – BLE private resolvable source address structure The prand value is encrypted using the IRK. The lowest 24 bit of the result (encrypted value) are then used as hash. The concatenation of 24 bit prand and 24 bit hash will be transmitted as 48 bit private resolvable source address. © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 13/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver The receiving device maintains a list of IRK for all transmitters that have been commissioned to work with it. Whenever the receiving device receives a radio telegram with private resolvable source address (identified by the most significant bits being set to 0b10), it will itself generate a 24 bit hash from the 24 bit prand sequentially using the IRK of each device that it has been learned into it. If an IRK matches (i.e. when prand is encoded with this specific IRK then the result matches hash), then the receiver has established the identity of the transmitter. So conceptually the IRK takes the role of the device source address while prand and hash provide a mechanism to select the correct IRK among a set of IRK. This mechanism is illustrated in Figure 8 below. Figure 8 – Resolving private source addresses 3.5 Check Sum The 3 byte BLE Check Sum is used to verify data integrity of received BLE radio telegrams. It is calculated as CRC (cyclic redundancy check) of the BLE Header, Source Address and Payload fields. TCM 515B will discard received radio telegrams that do not pass the CRC check. © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 14/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver 3.6 Payload The payload of data telegrams is up to 31 bytes long (depending on the size of the sensor data) and consists of the following fields: Length (1 byte) The Length field specifies the combined length of the following fields and depends on the size of the Sensor Status field. The minimum length is 13 byte and the maximum length is 31 byte Type (1 byte) The Type field identifies the data type used for this telegram. For TCM 515B data telegrams, this field is always set to 0xFF to designate manufacturer-specific data field Manufacturer ID (2 byte) The Manufacturer ID field is used to identify the manufacturer of BLE devices based on assigned numbers. EnOcean has been assigned 0x03DA as manufacturer ID code. Sequence Counter (4 byte) The Sequence Counter is a continuously incrementing counter used for security processing. It is initialized to 0 at the time of production and incremented for each telegram (data telegram or commissioning telegram) sent. Sensor Data (variable size) The Sensor Data field reports the measured values of the sensors. The encoding of this field is described in chapter 3.7. Security Signature (4 byte) The Security Signature is used to authenticate TCM 515B radio telegrams as described in chapter 0 Figure 9 below illustrates the telegram payload structure. Figure 9 – Telegram payload structure © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 15/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver 3.7 Sensor status encoding The Sensor Status field within the Payload data identifies the status of the connected sensors. The Sensor Status field is composed of sub-fields (one per sensor attribute). Each sub-field consists of two items: Sensor Data Descriptor The descriptor identifies the type of the attribute and the size of the following data field Sensor Data The sensor data encodes the attribute data Figure 10 below shows the structure of the sensor status field. Figure 10 – Sensor Status field structure 3.7.1 Sensor Data Descriptor The Sensor Data Descriptor describes type and size of the following sensor data field. It explicitly specifies the size to ensure forward compatibility, i.e. to enable future receivers to parse sensor telegrams containing unknown data types. The Sensor Data Descriptor structure is shown in Figure 11 below. Figure 11 – Sensor Data Descriptor field structure © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 16/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver 3.7.2 Sensor Status The Sensor Status field encodes the current status (last reported value) of a sensor. As described above, the type of the sensor data is identified by the Data Type ID field and its size is identified by the Data Size field of the preceding Sensor Data Descriptor. Table 3 below shows the sensor status encoding used by TCM 515B. ID 0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A ID Type Temperature Voltage Battery level Current Illuminance (wide angle) Illuminance (Narrow angle) Relative humidity Pressure Distance Gas concentration Acceleration Type Size [bytes] 327.66 16 383.5 126.5 32 766 Encoding (Input = x) °C 100 * x mV 2 * x 2*x μA x Measurement too low 0x8000 0x8000 0xFF 0x8000 Measurement Invalid 0x7FFF 0x7FFF 0xFE 0x7FFF yes yes no yes -327.67 -16 383.5 -32 767 no 65 533 lx 0xFFFF 0xFFFE no 65 533 lx 0xFFFF 0xFFFE no yes no no yes 126.5 -32 767 32 766 ~1023.95 32 766.5 ~-16 ~16 Enumerations hPa cm ppm 2*x 64 * x 2*x 2048 * x 0xFF 0x8000 0xFFFF 0xFFFF 0x8000 0xFE 0x7FFF 0xFFFE 0xFFFE 0x7FFF signed Minimum Size [bytes] Maximum Unit Enumerated values 0x01: 0x02: 0x03: Not occupied Occupied Standby 0x02: 0x03: 0x04: 0x00: 0x01: 0x21 Smoke Smoke Smoke Smoke Generic error No smoke (ion chamber) (opt. chamber) (both chambers) 0x01: 0x02: 0x03: 0x04: Up Right Down Left 0x00: 0x05: 0x06: 0x07: 0x08: 0x22 Mechanical handle 1 Generic error Up to right Right to down Down to left Left to up 0x09: 0x0A: 0x0B: 0x0C: Up to left Left to down Down to right Right to up 0x00: 0x01: 0x02: 0x23 Open/closed Generic error Closed Open System Messages 0x3B Device descriptor Variable All values: Application specific, Size defined by descriptor 0x3C Error report 0x00: No error Other values: Application specific 0x3D User data Variable All values: Application specific, Size defined by descriptor 0x3E Commissioning 26 Commissioning telegram: 4 byte Sequence Counter + 6 byte Source Address + 16 byte Private Key 0x20 Occupancy 0x00: Generic Error Table 3 – Sensor status encoding © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 17/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver 3.8 TCM 515B telegram authentication TCM 515B implements telegram authentication to ensure that only telegrams from senders using a previously exchanged security key will be accepted. Authentication relies on a 32 bit telegram signature which is calculated as shown in Figure 12 below and exchanged as part of the radio telegram. Figure 12 – Telegram authentication flow Sequence counter, source address and the remaining telegram data together form the input data for the signature algorithm. This algorithm uses AES128 encryption based on the device-unique random security key to generate a 32 bit signature which will be transmitted as part of the radio telegram. The signature is therefore dependent both on the current value of the sequence counter, the device source address and the telegram payload. Changing any of these three parameters will therefore result in a different signature. The receiver performs the same signature calculation based on sequence counter, source address and the remaining telegram data of the received telegram using the security key it received from TCM 515B during commissioning. The receiver then compares the signature reported as part of the telegram with the signature it has calculated. If these two signatures match then the following statements are true: Sender (TCM 515B) and receiver use the same security key The message content (address, sequence counter, data) has not been modified At this point, the receiver has validated that the message originates from a trusted sender (as identified by its security key) and that its content is valid. In order to avoid message replay (capture and retransmission of a valid message), it is required that the receiver tracks the value of the sequence counter used by TCM 515B and only accepts messages with higher sequence counter values (i.e. not accepts equal or lower sequence counter values for subsequent telegrams). © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 18/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver 3.9 ESP3 Interface TCM 515B provides a bi-directional UART interface for communicating with the external host. The default baud rate of this interface is 57600 bps. If the TURBO pin is set to active low then the baud rate is increased to 460.800 bps. 3.9.1 ESP3 Data Format TCM 515B communicate with external hosts using EnOcean Serial Protocol version 3 (ESP3) with EnOcean 2.4 GHz extensions. Please consult the detailed ESP3 specification at https://www.enocean.com/esp. © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 19/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver DEVICE INTEGRATION TCM 515B is designed for integration onto a host PCB. Detailed Gerber data of the device footprint is available from EnOcean upon request. 4.1 Recommended PCB Footprint Figure 13 below shows the recommended PCB footprint for TCM 515B. Figure 13 – Recommended PCB footprint © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 20/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver 4.2 Antenna options This chapter outlines options for antenna that can be used with TCM 515B. Note that this chapter is for guidance purposes only, please consult with an authorized certification body for specific information. 4.2.1 General antenna requirements for TCM 515B Antenna used TCM 515B shall always meet the requirements listed in Fehler! Verweisquelle konnte nicht gefunden werden. below. Frequency band 2.4 GHz ISM Antenna must be suited for this band Antenna type Passive Mandatory for radio approval Impedance ~50 Ohm Mandatory for radio approval Maximum gain ≤ 5 dBi Mandatory for radio approval Table 4 – General Antenna requirements 4.2.2 Specific antenna requirements for European Union TCM 515B can be used with the antennas described in subsequent chapters. See chapter 6 for additional important remarks regarding RED certification. 4.2.3 Specific antenna requirements for US / Canada The TCM 515B has been tested and certified according to FCC regulation with a number of different antennas as described below. 4.2.4 Antenna Description 4.2.4.1 Whip Antenna TCM 515B modules can be used with a whip antenna meeting key parameters shown in Fehler! Verweisquelle konnte nicht gefunden werden. below. © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 21/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver Figure 14 – Whip antenna with parameters for 2.4 GHz The whip antenna has to meet the following parameters: Antenna length (L): 30 mm wire, connect to RF_WHIP Minimum GND plane: 15 mm x 15 mm Minimum distance space: 10 mm The reference ce layout for this antenna is shown sho in Figure 15 below. Th The area within the green dotted rectangle and the minimum ground plane has to be implemented exactly as shown in order to use EnOcean modular approval for US / Canada. Figure 15 – Whip antenna reference layout Additionally, the transmission line between TCM 515B and the whip antenna has to be iimplemented as specified in Figure 16 below in order to use EnOcean modular approval for US / Canada. © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | vv0.5 | October 2017 | Page 22/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver Grounded Coplanar Waveguide (GCPW) GND line gap:line s width: w Line heigth: h GND GND vias Side View w = 1.00mm s = 0.15mm h= 0.90…2.00m (see Note 1) Typical line impedance optional layer(s) on other signals (optional)FR4=44…56 other signals (optional) Ω Line length: l GND vias Top View Return loss>=24dB Figure 16 – Transmission line specification Note (1): Coplanar waveguide modes are dominant in this configuration. Thus thickness of substrate can be changed with the given limits. 4.2.4.2 Meandered PCB Antenna TCM 515B has been certified for use with a meandered PCB antenna provided that the following layout guidelines are met: Matching circuit values of the modular approval may not be changed, use matching circuit components as specified in Table 5 Shape according to reference layout in Figure 17 Minimum GND plane: 40 mm x 18 mm Connect GND planes using multiple via as shown in Figure 17 Minimum distance space: 10 mm PCB Stack of the modular approval may not be changed, use PCB stack as specified in Figure 18 – PCB stack specification for meandered PCB antenna © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 23/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver Figure 17 below shows the dimensions of the meandered PCB antenna, the matching circuit and the area important for US / Canada modular approval (marked in green). Figure 17 – Reference layout for meandered PCB antenna h = 1.00mm substrate: FR4 Figure 18 – PCB stack specification for meandered PCB antenna Table 5 below lists the parameters of the matching circuit components using a FR4 substrate with 1.0 mm height. It is mandatory to not change the designator values and su substrate height for compliance with US / Canada modular approval usage. Designator C8 R9 C9 Value 1.0pF 6.8nH --- Notes Use Murata GRM1555 series or similar Use Würth WE-KI KI series, Murata LQW series or similar Not assembled Table 5 – Parameters of the matching circuit for 1.0 mm substrate height © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | vv0.5 | October 2017 | Page 24/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver 4.2.4.3 Dipole antenna requirements The TCM 515B has been certified for use with the dipole antenna model S151AH-2450S from Nearson or other antennas with similar parameters provided that: The RF connector is a non-standard connector such as a RP-SMA-Female from Johnson/Cinch Connectivity Solutions (142-4701-801) In addition, the following layout guidelines have to be met: The bottom GND plane is implemented below the RF transmission line section of the circuit to form a grounded coplanar waveguide (Figure 20 – Detailed description of RF transmission line) The ground planes have to be connected using multiple via along RF transmission line as shown in Figure 19 and Figure 20 Table 6 at the end of this section lists dipole antennas that can be used optional instead of S151AH-2450S antenna stated previously as they are of the same kind with less or equal gain. Figure 19 below shows the layout used for compliance tests. The section of the layout located within the green frame has to remain unchanged for US / Canada modular approval usage. Figure 19 – Reference layout for dipole antenna © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 25/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver The transmission line between TCM 515B and the antenna has to be implemented as shown in the following picture (Figure 20). Grounded Coplanar Waveguide (GCPW) GND line gap:line s width: w Line heigth: h GND GND vias Side View w =1.00mm s = 0.15mm =0.90…2.00m (see Note 1) Typical line impedance on optional layer(s) FR4=44…56Ω other signals (optional) other signals (optional) Line length: l GND vias Return loss>=24dB Top View Figure 20 – Detailed description of RF transmission line Note (1): Coplanar waveguide modes are dominant in this configuration. Thus thickness of substrate can be changed with the given limits. Figure 21 below shows dipole antenna model S151AH-2450S from Nearson that was used for certification tests. Figure 21 – dipole antenna model S151AH-2450S © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 26/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver Figure 22 – RP-SMA-Female Figure 22 above displays the RP-SMA-Female (142-4701-801) from Chinch Connectivity Solutions as an example for a non-standard RF connector required for US / Canada modular approval usage. © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 27/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver Table 6 gives a list of examples of dipole antennas that could be used with TCM 5151B under US / Canada modular approval. Manufacturer Nearson Inc. 1 Nearson Inc. Nearson Inc. ATOP Technologies ATOP Technologies Digi International Digi International Digi International Digi International Digi International Honeywell Honeywell Laird Technologies IAS Laird Technologies IAS Laird Technologies IAS Laird Technologies IAS Laird Technologies IAS Linx Technologies Inc. Linx Technologies Inc. Linx Technologies Inc. Linx Technologies Inc. LSR LSR Microchip Technology Proant AB Proant AB Pulse Electronics Pulse Electronics Pulse Electronics Pulse Electronics Pulse Electronics Red Lion Controls Siretta Ltd Siretta Ltd Taoglas Limited Taoglas Limited Walsin Technology Walsin Technology Walsin Technology Manufacturer Part Number S151AH-2450S S131AH-2450S S181AH-2450S ANT-WS-AB-RM-05-200 ANT-WS-AB-RM-05-180 A24-HASM-525 A24-HASM-450 DG-ANT-20DP-BG DC-ANT-24DP DC-ANT-24DT WAN01RSP WAN02RSP S2403BH36RSM EXR2400RSM MAF94046 MAF94028 MAF94112 ANT-2.4-CW-HW ANT-2.4-CW-RCT-RP ANT-2.4-CW-HWR-RPS ANT-2.4-CW-CT-RPS 001-0010 001-0001 RN-SMA4-RP 333 348 W1037 W1027 W1030 W5010 W5001 ANT-GW11A153 DELTA6B/X/SMAM/RP/S/11 DELTA10A/X/SMAM/RP/S/17 GW.11.A153 GW.26.0151 RFDPA151300SBAB8G1 RFDPA171300SBAB8G1 RFDPA870900SBAB8G1 Gain 5dBi 5dBi 2dBi 5dBi 5dBi 2.1dBi 2.1dBi 2dBi 1.8dBi 1.8dBi 2.2dBi 2.2dBi 3dBi 3dBi 1.3dBi 1.3dBi 1.5dBi 3.2dBi 2.2dBi 3.2dBi 2.8dBi 2dBi 2dBi 2.2dBi 3dBi 3dBi 3.2dBi 3.2dBi 2dBi 1.5dBi 1.5dBi 2.3dBi 5dBi 3dBi 2.3dBi 1.8dBi 3dBi 3dBi 2dBi Antenna Type Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Whip (Dipole), Tilt Tilt Tilt Straight Straight Tilt Tilt Tilt Tilt Straight Straight Tilt Straight Tilt Tilt Tilt Tilt Straight Tilt Tilt Straight Tilt Tilt Tilt Tilt Straight Tilt Tilt Tilt Straight Right Angle Tilt Tilt Straight Tilt Straight Tilt Tilt Tilt Table 6 – Dipole antenna options antenna tested for FCC and IC certification © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 28/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver 4.3 Soldering information TCM 515B has to be soldered according to IPC/JEDEC J-STD-020C standard as outlined in Figure 23 below. Figure 23 – Recommended temperature profile 4.4 Device handling instructions TCM 515B shall be handled according to Moisture Sensitivity Level MSL 3. TCM 515B may be soldered only once, since one time is already consumed at production of the module itself. Once the dry pack bag is opened, the desired quantity of units should be removed and the bag resealed within two hours. If the bag is left open longer than 30 minutes the desiccant should be replaced with dry desiccant. If devices have exceeded the specified floor life time of 168 h, they may be baked according IPC/JEDEC J-STD-033B at max. 90 °C for less than 60 h. Devices packaged in moisture-proof packaging should be stored in ambient conditions not exceeding temperatures of 40 °C or humidity levels of 90% r.H. TCM 515B modules have to be soldered within 6 months after delivery! © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 29/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver In general we recommend a no clean flux process. If washing is needed, then TCM 515B radio modules have a shield cover with small openings at the top of the edges. It is very important to mount the modules in a top down position during the drying process as this will allow getting the aggregated washing fluid removed properly from within the shield cover area. To prevent damage, modules have to be checked for any remaining fluid after the drying. 4.5 Device operation instructions TCM 515B shall only be operated while assembled onto a PCB that is integrated into a suitable product housing. TCM 515B shall only be supplied using “Limited Power Sources” compliant with EN 62368-1 clause 6.2.2.4 and a maximum output power of 15W (PS1). © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 30/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver 4.6 Tape & Reel specification TCM 515B is delivered in Tape & Reel packaging with 250 units per reel. Figure 24 below illustrates the dimensions. Figure 24 – Tape & Reel dimensions of TCM 515B Figure 25 below shows the positioning of TCM 515B in the Tape & Reel packaging. Figure 25 – Position of TCM 515B in the reel © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 31/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver APPLICATION INFORMATION 5.1 Transmission range The main factors that influence the system transmission range are: - Type and location of the antennas of receiver and transmitter - Type of terrain and degree of obstruction of the link path - Sources of interference affecting the receiver - “Dead spots” caused by signal reflections from nearby conductive objects. Since the expected transmission range strongly depends on this system conditions, range tests should always be performed to determine the reliably achievable range under the given conditions. The following figures should be treated as a rough guide only: Line-of-sight connections Typically 10 m range in corridors, up to 50 m in halls Plasterboard walls / dry wood Typically 10 m range, through max. 2 walls Ferro concrete walls / ceilings Maximum 1 wall or ceiling, depending on thickness and material Fire-safety walls, elevator shafts, staircases and similar areas should be considered as shielded 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 include: Switch mounting on metal surfaces (up to 30% loss of transmission range) Hollow lightweight walls filled with insulating wool on metal foil False ceilings with panels of metal or carbon fibre Lead glass or glass with metal coating, steel furniture The distance between the receiver and other transmitting devices such as computers, audio and video equipment that also emit high-frequency signals should be at least 0.5 m. © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 32/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver REGULATORY INFORMATION TCM 515B has been tested according to CE regulation. Changes or modifications not expressly approved by EnOcean could void compliance with RED requirements. 6.1 CE (RED) for European Union According to laws of the member states of the European Union OEM manufacturer or distributor are responsible for the conformity of the product. Note the following requirements for CE certification: The existing R&TTE directive has been replaced by RED (radio equipment directive) since 13th of June 2016. OEM manufacturers or distributors which sell this component as a product to his (final) customers have to fulfill all requirements of the radio equipment directive (RED). RED contains at least following requirements for OEM manufacturers or distributors: Provide product branding (on the product) clearly identifying company name or brand and product name as well as type, charge or serial number for market surveillance Include (with the product) documentation containing full postal address of the manufacturer as well as radio frequency band and max. transmitting power Include (with the product) user manual, safety information and a declaration of conformity for the final product in local language Provide product development and test documentation upon request OEM has to fulfill all additional requirements according to RED such as market surveillance or 10 years record retention. For details and national translations, please see: http://eur-lex.europa.eu/legal-content/EN/TXT/?uri=celex:32014L0053 © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 33/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver 6.2 FCC (United States) Certificate < to be inserted> © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 34/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver 6.2.1 FCC (United States) regulatory statement This device complies with part 15 of the FCC Rules. 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. 6.2.2 FCC (United States) labeling requirements This module is labeled with its own FCC ID number, and, if the FCC ID is not visible when this module is installed inside another device, then the outside of this device into which the module is installed must also display a label referring to this enclosed module. This exterior label can use wording such as the following: "Contains Transmitter Module FCC ID: SVZ-TCM515B" Or alternatively: "Contains FCC ID: SVZ-TCM515B" Any similar wording that expresses the same meaning may be used. Figure 26 below shows an example of such label. Contains FCC ID: SVZ-TCM515B Figure 26 – Label example 6.2.3 FCC (United States) RF exposure statement This module complies with radiofrequency radiation exposure limits according to 47 CFR, § 2.1093, applying general RF exclusion guidance KDB 447498. Calculation of conducted output power: conducted output power: duty cycle correction factor: time averaged output power: time averaged output power: FCC output power exception limit: 4.5 dBm -14 dBm -9.5 dBm 0.1 mW . ( )) √( ( 2.4 GHz 10 mW Frequency f: Limit: © 2017 EnOcean | www.enocean.com )∗ F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 35/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver 6.3 ISED (Industry Canada) Technical Acceptance Certificate < to be inserted> © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 36/37 USER MANUAL TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver 6.3.1 ISED (Industry Canada) regulatory statement This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.” 6.3.2 ISED (Industry Canada) RF exposure statement This module complies with the Exemption Limits for Routine Evaluation of radiofrequency radiation exposure according to RSS-102, 2.5.1. Calculation of e.i.r.p. (effective isotropic radiated power): conducted output power: maximum gain of antenna: maximum e.i.r.p.: duty cycle correction factor time averaged e.i.r.p time averaged e.i.r.p 4.5 dBm 5.0 dBi 9.5 dBm -14 dBm -4.5 dBm 0.4 mW ISED Exeption limit for time-averaged e.i.r.p output power Frequency f: Limit 2450 MHz 4 mW Source: https://www.ic.gc.ca/eic/site/smt-gst.nsf/vwapj/rss-102-issue5.pdf/$file/rss-102-issue5.pdf © 2017 EnOcean | www.enocean.com F-710-017, V1.0 TCM 515B User Manual | v0.5 | October 2017 | Page 37/37
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