EnOcean TCM515U Transceiver Module User Manual

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USER MANUAL
TCM 515 – ENOCEAN TRANSCEIVER GATEWAY MODULE
TCM 515 EnOcean Transceiver Gateway Module
22.06.2017
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
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TCM 515 – ENOCEAN TRANSCEIVER GATEWAY MODULE
REVISION HISTORY
The following major modifications and improvements have been made to this document:
Version
1.0
1.1
1.2
Author
MKA
MKA
MKA
Reviewer
MK, CB
MKA
MH, MK
Date
12.05.2017
22.05.2017
22.06.2017
Major Changes
First public release
Added detailed antenna information
Added receiver class due to RED requirement
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.
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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
High level functionality ................................................................................... 7
2.2
Functional modes .......................................................................................... 8
2.2.1
Telegram reception ................................................................................ 9
2.2.2
Telegram transmission ........................................................................... 9
2.2.3
Telegram repeating ................................................................................ 9
2.2.4
Low power sleep mode ........................................................................... 9
2.3
Device Interface .......................................................................................... 10
2.3.1
Pin-out ............................................................................................... 10
2.3.2
Power supply....................................................................................... 11
2.3.3
Antenna ............................................................................................. 11
2.3.4
UART interface .................................................................................... 11
2.3.5
Reset ................................................................................................. 12
2.3.6
Debug interface ................................................................................... 12
2.3.7
Firmware update (PROG) ...................................................................... 12
ESP3 interface ............................................................................................ 13
3.1
Supported ESP3 commands .......................................................................... 13
6.1
Security functionality ................................................................................... 14
Teach-in of remote devices ........................................................................... 15
Entering and exiting teach-in mode ............................................................... 16
Telegram reception flow ............................................................................... 17
Telegram filtering ........................................................................................ 18
6.2
Security handling ........................................................................................ 19
5.1
6.3
7.1
Reporting of security-related events .............................................................. 20
Telegram transmission ................................................................................. 21
Transmission flow ........................................................................................ 21
7.2
Built-in Repeater ......................................................................................... 21
7.3
Duty Cycle Limit .......................................................................................... 22
Remote Management ................................................................................... 23
Device Integration ....................................................................................... 23
9.1
Recommended PCB Footprint ........................................................................ 23
9.2
Device outline ............................................................................................. 24
9.3 Soldering information .................................................................................. 25
9.4 Power supply requirements ........................................................................... 26
9.5 Suggested Reset circuit ................................................................................ 26
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9.6 Debug interface .......................................................................................... 27
10 Antenna options .......................................................................................... 28
10.1
Antenna options for 868 MHz (European Union) .............................................. 28
10.1.1 Whip antenna ......................................................................................... 29
10.2
Antenna options for 902 MHz (US / Canada) ................................................... 30
10.2.1 Whip antenna ......................................................................................... 30
10.2.2 Helical antenna ....................................................................................... 30
10.2.3 Chip antenna (Supplier: Mitsubishi Material, Type AM11DP-ST01T) ................ 31
10.2.4 Dipole antenna (ANT-916-CW-HWR-RPS)................................................ 32
11
APPLICATION INFORMATION ........................................................................ 33
11.1
Transmission range ..................................................................................... 33
11.2 Layout recommendations......................................................................... 34
12
REGULATORY INFORMATION......................................................................... 35
12.1 RED (European Union) ............................................................................ 35
12.1.1 RED Attestation of Conformity for TCM 515 ............................................. 36
12.2 FCC (United States) ................................................................................ 37
12.2.1 OEM Requirements .............................................................................. 37
12.2.2 Module Activation ................................................................................ 38
12.3
IC (Industry Canada) Certification ................................................................. 39
12.4
Repeater Function (FCC/IC) .......................................................................... 41
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TCM 515 – ENOCEAN TRANSCEIVER GATEWAY MODULE
GENERAL DESCRIPTION
1.1
Basic functionality
TCM515 is a transceiver module limited to OEM installation ONLY.
TCM 515 enables the realization of line-powered actuators, controllers and gateways communicating based on EnOcean Radio Protocol version 1 (ERP1, 868 MHz ASK) and EnOcean
Radio Protocol version 2 (ERP2, 902 MHz FSK, 928MHz FSK).
It provides a transparent radio link between EnOcean radio devices and an external host
connected via UART interface using the standardized EnOcean Serial Protocol V3 (ESP3)
communication protocol.
TCM 515 receives and transmits radio telegrams based on a 50 Ohm or whip antenna connected to the host PCB. It forwards received radio telegrams to an external host processor
or host PC via the ESP3 interface. Messages received from an external host via the ESP3
interface will be transmitted by TCM 515 as EnOcean radio telegrams according to the chosen frequency.
TCM 515 is implemented as 31 pin reflow-solderable module with optimized form factor for
size constrained applications. It is not pin compatible with existing TCM 310 products.
Figure 1 below shows TCM 515.
Figure 1 – TCM 515 outline
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1.2
Technical data
Antenna
50 Ohm whip antenna (connected at host board)
Supported Radio Frequencies
868.3 MHz ASK / 902.875 MHz FSK
Data Rate
125 kbps
Receiver Sensitivity (See Note 1)
Receiver Category
Transmit Power
868.3 MHz ASK: -93 dBm
902.875 MHz FSK: -98 dBm
EN 300 220 Class 2
868.3 MHz ASK: +10 dBm
902.875 MHz FSK: +1 dBm
2.0 V … 3.6 V
Supply Voltage (typ)
Supply Current (at 2.0V)
25 mA
Supply Current Sleep Mode (at 2.0V)
5 uA
Start-up time (power up to RX ready)
5 ms
Serial Host Interface
UART according to ESP3 Standard (TURBO option)
Note 1: Sensitivity figures based on 0.1% telegram error rate for the combination of 3 received sub-telegrams and
is measured at 25°C
1.3
Physical dimensions
Module Dimensions
19.0 mm x 14.7 mm x 3.0 mm (all +- 0.3 mm)
Module Weight
1.4
1g
Environmental conditions
Operating Temperature
-40°C ... 85°C
Storage Temperature
-40°C ... 85°C
Humidity
1.5
0% to 95% r.h. (non-condensing)
Packaging information
Packaging Unit / Method
1.6
250 units / Tape and reel
Ordering information
Type
TCM 515
TCM 515U
Ordering Code
S3003-K515
S3053-K515
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2.1
FUNCTIONAL INFORMATION
High level functionality
TCM 515 is a fully integrated radio transceiver for EnOcean ERP1 (868 MHz ASK) or ERP2
(902 MHz FSK and in the future also 928 MHz FSK) systems.
TCM 515 is used to exchange (send and / or receive) radio telegrams with external sensors,
switches or actuators.
TCM 515 is connected to an external host which for instance could be a microprocessor, a
controller or a gateway.
Figure 2 below shows the integration of TCM 515 into a typical system environment.
Figure 2 – TCM 515 system environment
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2.2
Functional modes
TCM 515 implements the following functional modes:
 Telegram Reception
 Telegram Transmission
 Low Power Sleep
The transition between these functional modes is shown in Figure 3 below
Figure 3 – TCM 515 functional modes
The following chapters describe these functional modes in more detail.
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2.2.1
Telegram reception
In receive mode, TCM 515 processes received radio telegrams and verifies correct frame
structure and check sum.
Received telegrams can be filtered according to a filter list that can be setup via dedicated
ESP3 commands (see chapter 3 for the list of supported ESP3 commands).
TCM 515 fully integrates security handling for radio telegrams. It contains a security link
table that stores for each device that has been learned in the security key and the sequence counter value of the most recently received radio telegram. Received radio telegrams can therefore be automatically decrypted and authenticated.
Processed radio telegrams will then be forwarded to the external host via the ESP3 interface.
2.2.2
Telegram transmission
In transmit mode, TCM 515 receives radio telegrams for transmission from the external
host via its ESP3 interface. TCM 515 will apply the required security processing and properly format the radio telegram frame including checksum. It will then transmit the telegram
as a series of redundant telegrams.
2.2.3
Telegram repeating
TCM 515 can act as repeater for all or selected radio telegrams. The repeating functionality
is configured via ESP3 interface.
If TCM 515 is configured to act as repeater and it receives a radio telegram that it has to
repeat then TCM 515 will automatically transition from receive to transmit state to retransmit (repeat) this telegram. After successful transmission, it will automatically transition back to receive mode.
See chapter 6.3 for a description of the repeater functionality.
2.2.4
Low power sleep mode
TCM 515 can be set into a low power sleep mode for a defined period of time by means of
an ESP3 command. After expiry of the requested sleep period, TCM 515 will automatically
wake-up and transition back to receive mode.
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2.3
Device Interface
TCM 515 implements a 31 pin reflow-solderable interface. Solder mask data is available on
request from EnOcean.
2.3.1
Pin-out
The pin assignment (as seen from the top of the device) is shown in Figure 4 below. Solder
mask and mechanical data is available from EnOcean.
Figure 4 – TCM 515 device interface
Table 1 below summarizes the signal assignment.
PIN
NAME
PIN
NAME
PIN NAME
GND
12
NC
23
GND
RF_50 (50Ω antenna)
13
NC
24
nRST (Reset, active low)
GND
14
NC
25
SWCLK (Debug)
NC
15
GND
26
SWDIO (Debug)
NC
16
NC
27
PROG (SW Update, for future variants)
GND
17
NC
28
NC
NC
18
NC
29
NC
NC
19
NC
30
NC
NC
20
UART_RX (Input)
31
nTURBO (UART speed, active low)
10
NC
21
UART_TX (Output)
11
NC
22
VDD
Table 1 - TCM 515 pin assignment
Signals marked with “NC” are reserved for production test and future device variants and
must not be connected in the design.
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2.3.2
Power supply
TCM 515 is supplied by the VDD and GND Pins and supports a supply voltage range from
2.0V to 3.6V. For best radio performance it is very important to minimize noise on the supply voltage lines. Please see chapter 9.4.
2.3.3
Antenna
TCM 515 receives and transmits data based on a 50Ω whip antenna connected to its RF_50
input (Pin 2). Please see chapter 10.
2.3.4
UART interface
TCM 515 communicates with the external host using the standard ESP3 serial (UART) interface based on the signals UART_TX (Pin 21, direction from TCM 515 to external host) and
UART_RX (Pin 20, direction from external host to TCM 515).
The default interface speed of the ESP3 interface is 57600 bit per second and data is
transmitted using 8 data bits, 1 STOP bit and no parity (8N1).
It is possible to select faster communication speeds during operation using the ESP3
CO_SET_BAUDRATE command (see chapter 3). The following interface speeds are supported by TCM 515:
 57600 bit per second
 460800 bit per second
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 nTURBO input (Pin 31,
active low) 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.
In all cases, care should be taken not to select a UART interface speed which cannot be
supported by the connected host processor as this would prevent subsequent communication.
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2.3.5
Reset
TCM 515 can be reset by pulling the nRST pin (Pin 24, active low) to Ground. Please see
chapter 9.5 for reset circuit recommendations.
2.3.6
Debug interface
TCM 515 provides a two pin debug interface (Pin 25 – SWCLK, Pin 26 – SWDIO) according
to the Serial Wire Debug (SWD) standard. Please see chapter 9.6 for the typical connection
to a 10 pin SWD debug connector.
2.3.7
Firmware update (PROG)
The following information is provided as advance notice to customers. This functionality is
not supported by the current TCM 515 product, but considered for future product variants.
The implementation of this feature is subject to change without notice.
The option to update the device firmware in the field from the host processor using the
UART interface together with a dedicated programming pin (PROG) and the reset pin
(nRST) is under evaluation. If implemented, the firmware update mechanism would be
triggered by the following sequence:
1. Assert (pull high) the PROG input
2. Assert (pull low) the nRST input
3. Release (pull high) the nRST input
At this point, an integrated bootloader will check for a firmware update available via the
UART interface and download this. The following UART settings are planned to be used:



115200 baud per second
8 data bits
1 stop bit
After the download has been completed, the PROG pin should again either be released
(pulled low or disconnected).
Execution of the updated SW can then be started by asserting and releasing the nRST input
as described above.
For current designs without firmware update functionality, the PROG pin can be left disconnected.
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ESP3 interface
TCM 515 provides an external interface according to the EnOcean Serial Protocol, version 3
(ESP3). This interface is used both to exchange telegrams and command / status messages
with an external host. Please refer to the ESP3 specification: https://www.enocean.com/esp
3.1
Supported ESP3 commands
TCM 515 provides a bi-directional serial interface which conforms to the EnOcean ESP3
specification. For details regarding ESP3 please refer to the ESP3 specification.
The following ESP3 commands are supported by TCM 515:






Type
Type
Type
Type
Type
Type
1: ERP1 Radio Telegram
10: ERP2 Radio Telegram (TCM 515U only)
11: Configuration commands (TCM 515U only)
CFG_WR_ESP3_MODE
CFG_RD_ESP3_MODE
2 Responses
4 Event
SA_CONFIRM_LEARN to confirm/discard learn in/out
CO_READY to indicate wake up from deep sleep initiated by CO_WR_SLEEP
CO_DUTYCYCLE_LIMIT to inform about a current limitation due to duty cycle
5 Common commands
CO_WR_RESET to reset the device
CO_WR_STARTUP_DELAY to specify the delay from reset to start-up
CO_WR_SLEEP to put the device into low power sleep mode
CO_RD_VERSION to read SW/HW versions, chip ID etc.
CO_WR_IDBASE to write ID range base number
CO_RD_IDBASE to read ID range base number
CO_WR_REPEATER to configure repeater functionality
CO_RD_REPEATER to read repeater state
CO_WR_FILTER_ADD to add filter to filter list or to selective repeating
CO_WR_FILTER_DEL to delete filter from filter list or from selective repeating
CO_WR_FILTER_DEL_ALL to delete all filter
CO_WR_FILTER_ENABLE to enable/disable supplied filters
CO_RD_FILTER to read supplied filters
CO_WR_LEARNMODE to enable / disable learn mode
CO_RD_LEARNMODE to read the status of the learn mode
CO_WR_WAIT_MATURITY to wait until the end of the maturity time before
transmitting radio telegrams
CO_RD_DUTYCYCLE_LIMIT to read status of current duty cycle limitations
(for 868 MHz EU version)
CO_GET_FREQUENCY_INFO to read the operating frequency of the device
CO_RD_RORGS_COUNT to read the number of entries in the RORG table
CO_RD_RORGS_BY_ID to read the RORG’s supported by a specific device ID
CO_WR_RORG_ADD to write the RORG’s supported by a specific device ID
CO_WR_RORG_DELETE to delete a specific RORG (specified by its index)
CO_WR_RORGS_CLEAR to clear all RORG’s from the RORG table
CO_SET_BAUDRATE to set the baudrate of the ESP3 interface
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
Type 5 Common commands (for security handling)
o CO_WR_SECUREDEVICE_ADD
o CO_WR_SECUREDEVICE_DEL
o CO_RD_SECUREDEVICE_COUNT
o CO_RD_SECUREDEVICE_BY_INDEX
o CO_RD_SECUREDEVICE_BY_ID
o CO_WR_SECUREDEVICE_SENDTEACHIN
o CO_WR_SECUREDEVICE_CLEAR_LIST

Type 6 Smart Acknowledge commands (postmaster / mailbox functions)
o SA_WR_LEARNMODE to set/reset Smart Acknowledge learn mode
o SA_RD_LEARNMODE to get learn mode
o SA_WR_LEARNCONFIRM to add or delete a mailbox of a client
o SA_WR_RESET to send a reset command to a client
o SA_RD_LEARNEDCLIENTS to get learned mailboxes/clients
o SA_WR_POSTMASTER to activate/deactivate post master functionality

Type 7 Remote Management
o Messages with up to 255 byte of payload
Note that all configuration values set via ESP3 commands are held in RAM and will therefore be lost after RESET or after power down.
Security functionality
TCM 515 implements the security handling functions as specified in the EnOcean security
specification: https://www.enocean.com/security-specification
TCM 515 can receive and decrypt messages from the following supported products:
 PTM 215
 PTM 335
 STM 320 / STM 329 / STM 250 (or similar with same profile)
 STM 330 / STM 331 (or similar with same profile)
TCM 515 implements the following security functions:
 Message decryption using VAES 128
 Message encryption using VAES 128
 Management of 2/3 byte sequence counter
 CMAC (3 / 4 bytes length) validation based on sequence counter (2 / 3 bytes length)
and telegram content
 CMAC (3 / 4 bytes length) generation based on sequence counter (2 / 3 bytes
length) and telegram content
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Teach-in of remote devices
Teach-in is the process by which a remote device wants to setup communication with TCM
515. To do so, the remote device communicates to TCM 515 all parameters required to establish communication within a specially formatted telegram (teach-in telegram).
These parameters include:

Device source address (always)
This address uniquely identifies the remote device and can be used to filter incoming
radio telegrams (to accept only radio telegrams from devices having specific source
addresses)

EnOcean Equipment Profile (EEP, depending on device type)
The EEP identifies the way in which the telegram data is encoded. Knowing the EEP
used by a remote device allows the host which is connected to TCM 515 to properly
decode the telegram data into actual measurement values such as temperature,
humidity, etc.

Security key (if using high security mode)
The 128 bit AES security key is used in high security mode to encode and / or authenticate radio telegrams


Current sequence counter value (if using high security mode)
The sequence counter is a continuously incrementing counter used to ensure that
the payload of any two radio telegrams will be different. This is important to avoid
replay attacks by which a previously transmitted radio telegram is re-transmitted.
The receiver has to track the sequence counter value for each device communicating
with it and will only accept radio telegrams with sequence counter values higher
than that of the last received telegram.
Security options (if using high security mode)
The security options specify type and size of parameters used for the encryption and
authentication functionality
For details about the security implementation, please refer to the Security of EnOcean Radio Networks specification.
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5.1
Entering and exiting teach-in mode
In order to accept teach-in requests from remote devices, TCM 515 must be put into teachin mode via the ESP3 interface by using the CO_WR_LEARNMODE command.
After a successful teach-in process, the whole teach-in message is forwarded as RADIO_MESSAGE (PACKET TYPE 0x09) to the external host via the ESP3 interface.
If TCM 515 is not in teach-in mode then teach-in requests from unknown devices are ignored.
If TCM 515 receives a teach-in message from a known (previously taught-in) device operating in high security mode then the sequence counter information in the TCM 515 secure link
table is updated. This approach is used in case sequence counters of receiver and sender
become desynchronized.
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Telegram reception flow
TCM 515 performs the following functions for each received radio telegram:

Telegram filtering
Received telegrams can be classified according to user-defined characteristics and
only telegrams matching these characteristics will be processed

Security handling
Telegrams from taught-in devices operating in high security mode can be automatically decrypted and authenticated

Telegram output
Processed telegrams will be forwarded to the external host via the ESP3 interface
Figure 5 below shows the handling for received telegrams.
Figure 5 – Telegram Reception Flow
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6.1
Telegram filtering
Telegram filtering is the process by which only radio telegrams that match specific userdefined parameters will be forwarded to the external host. This mechanism is used to limit
the amount of telegram processing required at the external host.
The following parameters can be used as filter:

Source ID
Only radio telegrams originating from a specific sender (identified by its EnOcean
Universal Radio ID = EURID) will be processed.
This filter type can be used for instance in actuators which only accept input from
devices (e.g. switches) that have been learned in.

Destination ID
Only radio telegrams addressed to a specific receiver (as identified by its EURID) will
be processed.
This filter type can be used by a receiver to accept only radio telegrams intended for
itself.

Telegram Type (RORG)
Only radio telegrams of a specific type (RPS, 1BS, 4BS or VLD) will be processed.
This filter type can be used for instance if an actuator should react only on switch
(RPS) telegrams.

Received signal strength (RSSI)
Only radio telegrams above or below a specific signal strength will be processed.
The first case – above - can for instance be used during learn-in if an actuator
should only accept teach-in telegrams from devices close to the receiver.
The second case – below - can be used in repeaters where only weak signals (with
low RSSI) should be repeated in order to limit radio congestion.
Note that more than one filter can be defined, e.g. it is possible to setup filter rules such
that telegrams originating from several source ID will be processed.
Telegram filtering is configured using the following ESP3 commands:
 CO_WR_FILTER_ADD to add filter to filter list or to selective repeating
 CO_WR_FILTER_DEL to delete filter from filter list or from selective repeating
 CO_WR_FILTER_DEL_ALL to delete all filter
 CO_WR_FILTER_ENABLE to enable/disable supplied filters
 CO_RD_FILTER to read the currently active filters
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6.2
Security handling
TCM 515 implements all required functionality to process high security telegrams.
Specifically, TCM 515 can automatically decrypt and authenticate messages originating
from taught-in remote devices transmitting messages according to the EnOcean Network
Security specification.
Security processing requires the receiver to know the security key and the latest rolling
code counter. Therefore this is only possible for devices that have previously been taughtin.
If a high security radio telegram is received from a device that has not been taught in then
TCM 515 will report a security event and forward the raw (unprocessed) telegram to the
host for further analysis.
Figure 6 below illustrates the high level processing flow for received EnOcean high security
radio telegrams.
Figure 6 – TCM 515 high security telegram processing flow
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6.3
Reporting of security-related events
TCM 515 can report to the host the following security-related events by means of a
CO_EVENT_SECUREDEVICES event message:

EVENT_RESYNC_WRONG_KEY
Resynchronization attempt with wrong private key

EVENT_TI_CORRUPTED
Teach-In failed because the teach-in telegram has been corrupted.

EVENT_NO_MORE_SPACE
Teach in failed, because no more space is available

EVENT_BRUTE_FORCE_ATTACK
Configured count of telegrams with wrong CMAC has been received

EVENT_TI_PSK_FAIL
Teach-In based on pre-shared key (PSK) failed because no PSK is set for the device
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Telegram transmission
7.1
Transmission flow
TCM 515 performs the following functions to transmit radio telegrams:

Telegram input
TCM 515 receives the radio telegram data from the external host via the ESP3 interface

Security handling
Telegrams from taught-in devices operating in high security mode can be automatically decrypted and authenticated

Telegram transmission
Processed telegrams will transmitted
Figure 7 below shows the handling for transmitted telegrams.
Figure 7 – Telegram Transmission Flow
7.2
Built-in Repeater
TCM 515 provides the option to activate a one or two-level repeater for EnOcean radio telegrams.

1-level repeater: If a received telegram is a valid and original (not yet repeated),
the telegram is repeated after a random delay. This delay will be chosen such that
the maximum TX maturity time (as standardized in ISO 14543-3-10) of 40ms will
not be exceeded.

2-level repeater: If a received telegram is valid and original or repeated once, the
telegram is repeated after a random delay. This delay will be chosen such that the
maximum TX maturity time (as standardized in ISO 14543-3-10) of 40ms will not be
exceeded.
Repeated telegrams are marked as “repeated” by an increased repeater counter. Configuration of the repeater functionality is done via serial interface commands.
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When using repeaters, care must be taken to ensure that regulatory transmitter
duty cycle limits (if applicable) are not exceeded.
2-level repeating function should only be activated after careful study of the radio
conditions! Otherwise the system function can be compromised by collisions of
telegrams.
For detailed recommendations regarding the usage of repeaters please refer to our application note EnOcean Wireless Systems - Installation Notes (PDF), 09/2010.
TCM 515 also provides selective repeating, i.e. the option to only repeat certain telegrams
with match pre-defined filter criteria. The filter criteria that can be applied for repeating are
the same as the ones for telegram reception, please see chapter 6.1.
7.3
Duty Cycle Limit
European radio regulation mandates that the duty cycle limits of radio transmitters have to
be enforced by technical means. The European (868.3 MHz) version of TCM 515 therefore
implements a hardware duty cycle monitor which enforces the regulatory duty cycle limit of
1% per hour.
The functionality of this monitor is as follows:

Each 1 hour (3600 seconds) period is sub-divided into 10 time slots of 360 seconds
each. The total available transmission time (36 seconds per 3600 second period) is
equally divided upon these 10 time slots, i.e. each time slot is allocated 3.6 seconds
of transmission time.

For each time slot, the total transmission time is accumulated

The remaining available transmission time is calculated as difference between allocated and accumulated transmission time.

If the available transmission time reaches zero (no more transmission time available) then TCM 515 will not transmit any additional messages during this time interval. TCM 515 will respond with RET_LOCK_SET to the host if this requests transmission of additional telegrams in this case.
The host can query the duty cycle status at any time using the ESP3 command
CO_RD_DUTYCYCLE_LIMIT. The response from TCM 515 will specify both the already used
percentage of available transmission time within the current time slot (0% … 100%) and
the remaining time (in seconds) until the start of the next time slot.
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Remote Management
TCM 515 provides a transparent radio channel also for remote management messages with
a message length of up to 255 bytes. This enables an external micro controller connected
to TCM 515 to handle remote management request from external devices or to control other devices via remote management.
For more information on remote management please refer to the EnOcean End Equipment
Profiles (EEP) 2.6 specification.
Device Integration
TCM 515 is designed for integration onto a host PCB. Detailed Gerber data of the device
footprint is available from EnOcean.
9.1
Recommended PCB Footprint
Figure 8 below shows the recommended PCB footprint for TCM 515.
Figure 8 – Recommended PCB footprint
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9.2
Device outline
Figure 9 below shows the device outline of TCM 515.
Figure 9 – Device outline
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9.3
Soldering information
TCM 515 shall be soldered according to IPC/JEDEC J-STD-020C standard.
Figure 10 – Recommended soldering profile
TCM 515 shall be handled according to Moisture Sensitivity Level MSL4 which means a floor
time of 72 h. TCM 515 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 72 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 515 modules shall be soldered within 6 months after delivery!
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9.4
Power supply requirements
In order to provide a good radio performance, great attention must be paid to the power
supply and a correct layout and shielding. It is recommended to place a 22 µF ceramic capacitor between VDD and GND close to the module (material: X5R, X7R, min 6.3 V to avoid
derating effects).
In addition, an HF SMD EMI Suppression Ferrite Bead such as the Würth WE-CBF HF SMD
EMI Suppression Ferrite Bead (Würth order number 742863160) shall be inserted in the
power supply line.
For best performance it is recommended to keep the ripple on the power supply rail below
10 mVpp.
TCM 515 integrate approximately 10 uF of capacitance for filtering the internal supply voltage bus. The power supply architecture has to be capable of supplying sufficient current to
charge this capacitance during power up.
9.5
Suggested Reset circuit
TCM 515 can be reset by pulling the nRST pin (active low) to Ground. TCM 515 integrated a
weak (50kΩ) pull-up resistor that will maintain the internal nRST input active high (not active).
In order to avoid spurious reset events, it is recommended to filter the input signals by
means of a small capacitor which is placed as close as possible to the TCM 515 nRST pin as
shown in Figure 11 below.
Figure 11 – Recommended reset circuit
The reset pulse should have a duration of at least 1 ms in order to guarantee reliable reset
operation.
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9.6
Debug interface
TCM 515 implements a debug interface according to the Serial Wire Debug (SWD) standard. The connection of TCM 515 to a standard 10 pin SWD connector is shown in Figure 12.
Figure 12 – TCM 515 debug interface
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10
Antenna options
This chapter outlines options for antenna that can be used with TCM 515. Note that this
chapter is for guidance purposes only, please consult with an authorized certification body
for specific information.
10.1
Antenna options for 868 MHz (European Union)
In order to be compliant with the Radio Equipment Directive (RED) of the European Union,
an antenna needs to fulfil at least following requirements to be usable with TCM 515:
Frequency
band
868.300 MHz
ISM
Antenna must be suited for this band
Antenna type
Passive
Mandatory for radio approval
Impedance
~50 Ohm
Mandatory for radio approval
Maximum gain ≤ 0 dBd
Mandatory for radio approval
In addition, it is important to fulfill the following requirements in order to achieve compatibility with other EnOcean products and to ensure EMI robustness:
VSWR
≤ 3:1
Important for compatibility with EnOcean protocol
Return Loss
> 6 dB
Important for compatibility with EnOcean protocol
Bandwidth
≤ 20 MHz
Important if 10 V/m EMI robustness required for device
See chapter 12.1 for additional important remarks regarding RED certification.
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10.1.1
Whip antenna
TCM 515 modules have been certified for use with a whip antenna under EU (RED) regulations. Figure 13 below shows key whip antenna parameters.
Figure 13 – Whip antenna parameters
The whip antenna has to meet the following parameters in order to be compliant to the
regulations mentioned above:



Antenna length (L): 86 mm wire, connect to RF_50
Minimum GND plane: 38 mm x 18 mm
Minimum distance space: 10 mm
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10.2
Antenna options for 902 MHz (US / Canada)
TCM 515 has been tested and certified with a number of antennas as described below. A
separate approval is required for all other operating configurations, including portable configurations with respect to Part 2.1093 and different antennas.
10.2.1
Whip antenna
TCM 515 has been certified for use with a whip antenna which meets the following parameters (see Figure 13):
 Antenna length (L): 64 mm wire, connect to RF_50
 Minimum GND plane: 50 mm x 50 mm
 Minimum distance space: 10 mm
10.2.2
Helical antenna
TCM 515 has been certified for use with the ANT 300 helix antenna from EnOcean which
uses the following parameters (see Figure 13):
 Shape according to drawing below
 Minimum GND plane: 35 mm x 30 mm
 Minimum distance space: 10 mm
Figure 14 – Helix antenna parameters
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10.2.3
Chip antenna (Supplier: Mitsubishi Material, Type AM11DP-ST01T)
TCM 515 has been certified for use with the chip antenna AM11DP-ST01T from Mitsubishi
Material provided that the following layout guidelines are met:

Dimensions may not be shortened

Matching circuit is part of the single modular approval and may not be changed

Matching circuits values: L2 = 33 nH; L3 = 3,9 nH, L4 = 12 nH

Use High Q wire wound inductors, e.g. 0603 Murata LQW18A series

Minimum top and bottom side ground plane required as shown below

Connect ground planes using multiple via as shown in Figure 15

Connect matching circuit to RF_50 pin
Figure 15 below shows the reference layout that has to be used.
Figure 15 – Required layout for AM11DG-ST01
For any further questions or chip antenna quotes, please refer to Mitsubishi Materials website at www.mmea.com or email to electroniccomponents@mmus.com.
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10.2.4
Dipole antenna (ANT-916-CW-HWR-RPS)
TCM 515 has been certified for use with the dipole antenna ANT-916-CW-HWR-RPS from
Linx provided that a non-standard connector such as RP-SMA-Female from Linx is used.
Figure 16 below shows ANT-916-CW-HWR-RPS from Linx.
Figure 16 – ANT-916-CW-HWR-RPS
Figure 17 below shows RP-SMA- Female from Linx.
Figure 17 – RP-SMA-Female
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11
APPLICATION INFORMATION
11.1
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 30 m range in corridors, up to 100 m in halls

Plasterboard walls / dry wood
Typically 30 m range, through max. 5 walls

Ferro concrete walls / ceilings
Typically 10 m range, through max. 1 ceiling

Fire-safety walls, elevator shafts, staircases and supply areas
Such 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 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.
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11.2
Layout recommendations
The length of lines connected to I/Os should not exceed 5 cm.
It is recommended to have a complete GND layer in the application PCB, at least
in the area below the module and directly connected components (e.g. mid-layer
of your application PCB).
Due to non-isolated test points there are live signals accessible on the bottom side
of the module.
We suggest avoiding any copper structure in the area directly underneath the
module (top-layer layout of your application PCB). If this is not possible in your
design, please provide coating on top of your PCB to prevent short circuits to the
module. All bare metal surfaces including vias have to be covered (e.g. adequate
layout of solder resist).
Furthermore, any distortive signals (e.g. bus signals or power lines) should not be
routed underneath the module. If such signals are present in your design, we suggest separating them by using a ground plane between module and these signal
lines.
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12
REGULATORY INFORMATION
TCM 515 has been tested according to standards for RED (European Union) certification,
FCC (US) and ISED (Canada) regulations.
12.1
RED (European Union)
The Radio Equipment Directive (2014/53/EU, typically referred to as RED) replaces the old
R&TTE directive from 1999 as regulatory framework for radio products in the European Union. All products sold to final customers after 12th of June, 2017 have to be compliant to
RED.
At the time of writing, the text of the RED legislation was available from this link:
http://eur-lex.europa.eu/eli/dir/2014/53/oj
Dolphin radio modules such as TCM 515 are components which are delivered to OEM manufacturers for their use in final or combined products.
It is the responsibility of the OEM manufacturer to demonstrate compliance to all applicable
EU directives and standards. The attestation of conformity for TCM 515 serves as input to
the declaration of conformity for the full product.
At the time of writing, guidance on the implementation of EU product rules – the so called
“Blue Guide” – was available from this link:
http://ec.europa.eu/DocsRoom/documents/18027/
Specifically within the new RED framework, all OEM manufacturers have for instance to
fulfill the following additional requirements:




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
Please contact an accredited test house for detailed guidance.
The maximum transmitting power of TCM 515 using a whip antenna is +10.8 dBm.
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12.1.1
RED Attestation of Conformity for TCM 515
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12.2
FCC (United States)
TCM 515U is a RF module approved for Single Modular use.
It is limited to OEM installation ONLY.
A separate approval is required for all other operating configurations, including portable
configurations with respect to Part 2.1093 and different antenna configurations not covered
by chapter 10.2
The module is limited to installation in mobile or fixed application.
TCM 515U has been tested against and is in compliance with FCC Part 15 Subpart B Class
B. By incorporating this module into the final product, the final product may have to be
tested to the FCC Part 15 Subpart B requirements. It is important to follow all notes regarding the installation and use of this module to ensure that the final product does comply with
the FCC Part 15 Subpart B requirements.
To ensure compliance for all non-transmitter functions, a host product manufacturer is responsible for ensuring compliance with the module installed and fully operational. For example, if a host product was previously authorized as an unintentional radiator under the
Declaration of Conformity procedure without containing a certified transmitter module, then
a module is added, the host manufacturer is responsible for ensuring that the host continues to be compliant with the Part 15 subpart B unintentional radiator requirements after
the module is installed and operational. Because this may depend on the details of how the
module is integrated within the host, EnOcean will provide any guidance to the host manufacturer if needed for the final product for ensuring compliance with the Part 15 Subpart B
requirements.
The module is optimized to operate using small amounts of energy, and may be powered
by a battery. The module transmits short radio packets comprised of control signals, (in
some cases the control signal may be accompanied with data) such as those used with
alarm systems, door openers, remote switches, and the like.
The module does not support continuous streaming of voice, video, or any other forms of
streaming data; it sends only short packets containing control signals and possibly data.
The module is designed to comply with, has been tested according to 15.231(a-c), and has
been found to comply with each requirement.
Thus, a finished device containing the TCM 515U radio module can be operated in the United States without additional Part 15 FCC approval (approval(s) for unintentional radiators
may be required for the OEM’s finished product), under EnOcean’s FCC ID number if the
OEM requirements are met and an OEM Modular Approval Agreement with EnOcean has
been signed.
12.2.1
OEM Requirements
In order to use EnOcean’s FCC ID number, the OEM must ensure that the following condi-
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tions are met:

End users of products, which contain the module, must not have the ability to alter
the firmware that governs the operation of the module. The agency grant is valid
only when the module is incorporated into a final product by OEM integrators.

The end-user must not be provided with instructions to remove, adjust or install the
module.

Changes or modifications not expressly approved by EnOcean could void the user's
authority to operate the equipment.

The module must be used with the approved antenna(s) as listed in chapter 10.2

The OEM must ensure that timing requirements according to 47 CFR 15.231(a-c) are
met.

The Original Equipment Manufacturer (OEM) must ensure that FCC labeling requirements are met. This includes a clearly visible label on the outside of the final product. Attaching a label to a removable portion of the final product, such as a battery
cover, is not permitted. The label must include the following text:
Contains FCC ID: SZV-TCM515U
The enclosed device complies with Part 15 of the FCC Rules. Operation is subject to
the following two conditions: (i.) this device may not cause harmful interference and
(ii.) this device must accept any interference received, including interference that
may cause undesired operation.
When the device is so small or for such use that it is not practicable to place the
statement above on it, the information required by this paragraph shall be placed in
a prominent location in the instruction manual or pamphlet supplied to the user or,
alternatively, shall be placed on the container in which the device is marketed. However, the FCC identifier or the unique identifier, as appropriate, must be displayed
on the device.
The user manual for the end product must also contain the text given above.
12.2.2
Module Activation
The module can be triggered manually or automatically as described below.
Manual Activation
The radio module can be configured to transmit a short packetized control signal if triggered manually. The module can be triggered, by pressing a switch, for example.
The packet contains one (or more) control signals that is(are) intended to control something at the receiving end. The packet may also contain data. Depending on how much energy is available from the energy source, subsequent manual triggers can initiate the
transmission of additional control signals. This may be necessary if prior packet(s) was
(were) lost to fading or interference.
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Subsequent triggers can also be initiated as a precaution if any doubt exists that the first
packet didn’t arrive at the receiver. Each packet that is transmitted, regardless of whether
it was the first one or a subsequent one, will only be transmitted if enough energy is available from the energy source.
Automatic Activation
The radio module also can be configured to transmit a short packetized control signal
if triggered automatically, by a relevant change of its inputs or in response to receiving a
signal from another transmitter, for example.
Again, the packet contains a control signal that is intended to control something at the receiving end and may also contain data. As above, it is possible for the packet to get lost
and never reach the receiver. However, if enough energy is available from the energy
source, and the module has been configured to do so, then another packet or packets containing the control signal may be transmitted at a later time.
12.3
ISED (former Industry Canada) Certification
This device complies with Industry Canada’s license-exempt RSSs. 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.
In order to use EnOcean’s IC number, the OEM must ensure that the following conditions
are met:
Labeling requirements for ISED are similar to those required by the FCC. The Original
Equipment Manufacturer (OEM) must ensure that ISED labeling requirements are met. A
clearly visible label on the outside of a non-removable part of the final product must include
the following text:
Contains IC: 5713A-TCM515U
Contient le module d'émission IC: 5713A-TCM515U


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The OEM must sign the OEM Modular Approval Agreement with EnOcean
Pour utiliser le numéro IC EnOcean, le OEM doit s'assurer que les conditions suivantes sont
remplies:
Les exigences d'étiquetage pour ISED sont similaires à ceux exigés par la FCC. Le fabri-
cant d'équipement d'origine (OEM) doit s'assurer que les exigences en matière d'étiquetage
ISED sont réunies. Une étiquette clairement visible à l'extérieur d'une partie non amovible
du produit final doit contenir le texte suivant:
Contains IC: 5713A-STM300U
Contient le module d'émission IC: 5713A-TCM515U

L'OEM doit signer l'accord OEM Approbation modulaire avec EnOcean
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USER MANUAL
TCM 515 – ENOCEAN TRANSCEIVER GATEWAY MODULE
12.4
Repeater Function (FCC/IC)
The device is capable to operate as a repeater, which can receive signals from the following
list of FCC/IC approved transmitters, and retransmit the signals:










PTM 210U
PTM 330U
STM 300U
STM 320U
STM 332U
TCM 300U
TCM 310U
TCM 320U
TCM 330U
TCM 515U
© 2017 EnOcean | www.enocean.com
FCC
FCC
FCC
FCC
FCC
FCC
FCC
FCC
FCC
FCC
ID:SZV-PTM210U
ID:SZV-PTM330U
ID:SZV-STM300U
ID:SZV-STM320U
ID:SZV-STM332U
ID:SZV-STM300U
ID:SZV-STM300U
ID:SZV-TCM320U
ID:SZV-STM300U
ID:SZV-TCM515U
F-710-017, V1.0
IC:5713A-PTM210U
IC:5713A-PTM330U
IC:5713A-STM300U
IC:5713A-STM320U
IC:5713A-STM332U
IC:5713A-STM300U
IC:5713A-STM300U
IC:5713A-TCM320U
IC:5713A-STM300U
IC:5713A-TCM515U
TCM 515 User Manual | v1.2 | June 2017 | Page 41/41

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