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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.
EnOcean 2.4 GHz devices and an external host connected via the standardized ESP3 interface (EnOcean Serial Protocol, version 3). TCM 515Z receives and transmits radio telegrams based on a 50 Ohm or whip antenna connected to the host PCB. It forwards received 2.4 GHz IEEE 802.15.4 radio telegrams to an external host processor or host PC via the ESP3 interface.
TCM 515Z Device Interface TCM 515Z 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 515Z device interface Table 1 below summarizes the signal assignment.
2.1.1 Signal Description TCM 515Z is supplied by the VDD and GND Pins. The required supply voltage is 3.3V with a tolerance of no more than +-10%. TCM 515Z receives and transmits data based on a 50Ω whip antenna connected to its AN- TENNA input (Pin 2).
TCM 515Z support all radio channels of the IEEE 802.15.4 standard in the 2.4 GHz band. The radio channel used by TCM 515Z can be set by an external host using the ESP3 SET_CHANNEL command as described in Appendix C.2.3.
460.800 bps. 2.4.1 ESP3 Data Format TCM 515Z communicate with external hosts using EnOcean Serial Protocol version 3 (ESP3) with EnOcean 2.4 GHz IEEE 802.15.4 extensions. Please consult the detailed ESP3 specification at https://www.enocean.com/esp.
TCM 515Z – 2.4 GHZ IEEE 802.15.4 Transceiver Antenna options This chapter outlines options for antenna that can be used with TCM 515Z. Note that this chapter is for guidance purposes only, please consult with an authorized certification body for specific information.
USER MANUAL TCM 515Z – 2.4 GHZ IEEE 802.15.4 Transceiver Antenna description The TCM 515Z has been tested and certified according to FCC regulation with a number of different antennas as described below. 3.4.1 Whip antenna TCM 515Z modules can be used with a whip antenna meeting key parameters shown in Figure 3 below.
3.4.2 Meandered PCB antenna TCM 515Z has been certified for use with a meandered PCB antenna provided that the fol- lowing layout guidelines are met: Matching circuit values of the modular approval may not be changed ...
3.4.3 Dipole antenna requirements The TCM 515Z has been certified for use with the dipole antenna 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 John- ...
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Murata LQP15MN series or similar Table 5 – Values of the pi low pass filter for the dipole antenna The transmission line between TCM 515Z and the antenna has to be implemented as shown in Figure 8 below. w=1.00mm s=0.15mm...
USER MANUAL TCM 515Z – 2.4 GHZ IEEE 802.15.4 Transceiver Device Integration TCM 515Z is designed for integration onto a host PCB. Detailed Gerber data of the device footprint is available from EnOcean upon request. Recommended PCB Footprint Figure 11 below shows the recommended PCB footprint for TCM 515Z.
TCM 515Z modules have to be soldered within 6 months after delivery! In general we recommend a no clean flux process. If washing is needed, then TCM 515Z radio modules have a shield cover with small openings at the top of the edges.
TCM 515Z – 2.4 GHZ IEEE 802.15.4 Transceiver Tape & Reel specification TCM 515Z is delivered in Tape & Reel packaging with 250 units per reel. Figure 13 below illustrates the dimensions. Figure 13 – Tape & Reel dimensions of TCM 515Z Figure 14 below shows the positioning of TCM 515Z in the Tape &...
For best performance it is recommended to keep the ripple on the power supply rail below 10 mVpp. TCM 515Z integrates 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.
TCM 515Z – 2.4 GHZ IEEE 802.15.4 Transceiver REGULATORY INFORMATION TCM 515Z has been certified according to FCC, IC and CE regulations. Changes or modifications not expressly approved by EnOcean could void the user's authori- ty to operate the equipment.
IEEE 802.15.4 Frame Structure A.1 IEEE 802.15.4 High Level Frame Structure TCM 515Z transmits and receives radio telegrams in the 2.4 GHz band according to IEEE 802.15.4 frame structure. The external host is responsible for the proper decoding of re- ceived telegrams and proper encoding of telegrams to be transmitted.
TCM 515Z will automatically calculate and append the frame check sum to radio telegrams it is transmitting. For received radio telegrams, TCM 515Z will calculate the frame check sum and verify data integrity based on that. If the checksum does not match, the received radio telegram will be discarded.
MAC Header and ending with the last Byte of the MAC Payload. TCM 515Z then calculates the frame check sum (MAC Trailer) based on the received pay- load and appends it to the message. The full frame (including the Preamble and Start of Frame fields) will then be transmitted as IEEE 802.15.4 radio telegram (TX mode).
The structure of the gateway RESPONSE message to the request for transmission of an IEEE 802.15.4 Raw Packet is shown in Table 8 below. TCM 515Z will transmit a dedicated message to a connected host if transmission of an accepted telegram subsequently fails.
TCM 515Z – 2.4 GHZ IEEE 802.15.4 Transceiver C.1.3 Failure Indication for IEEE 802.15.4 Raw Packet TCM 515Z will accept and immediately acknowledge via ESP3 correctly formatted telegrams for radio transmission as described above. Should transmission subsequently fail due to channel non-availability then this will be sub- sequently indicated to the host using an ESP3 Event (Packet Type 0x04) with Event Code 07: CO_TRANSMIT_FAILED.
USER MANUAL TCM 515Z – 2.4 GHZ IEEE 802.15.4 Transceiver Packet Type 0x11: IEEE 802.15.4 COMMAND The packet type IEEE 802.15.4 COMMAND is used to set and read parameters of TCM 515Z. C.2.1 Packet structure for IEEE 802.15.4 COMMAND The packet structure for IEEE 802.15.4 COMMAND is shown in Figure 23 below.
TCM 515Z – 2.4 GHZ IEEE 802.15.4 Transceiver C.2.3 SET_CHANNEL Command The SET_CHANNEL command sets the radio channel used by TCM 515Z. Please refer to chapter 2.3 for details about the supported radio channels. The command structure of the SET_CHANNEL command is shown in Table 11 below.
TCM 515Z – 2.4 GHZ IEEE 802.15.4 Transceiver C.2.5 GET_CHANNEL Command The GET_CHANNEL command requests information about the radio channel currently used by TCM 515Z. The command structure of the GET_CHANNEL command is shown in Table 13 below. Group Offset Size Field Value Description 1 Sync.
Command Code 0x24: CO_SET_BAUDRATE The command CO_SET_BAUDRATE modifies the baud rate of the ESP3 interface. The standard baud rate defined by the ESP3 interface is 57600 Baud. TCM 515Z supports faster baud rates as listed in Table 15 below. Group...
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