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AUREL XTR-8LR-USB User Manual

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XTR-8LR-USB is an half duplex transceiver perfectly suitable for long range communication thanks to its
patented "LoRa ™" modulation technique, capable to ensure high interference immunity, very low current
consumption and high sensitivity.
Comparing this kind of modulation with the classic ones, XTR-8LR-USB has highly improved the sensitivity
of the receiver up to 20 dBm, ensuring long budget-link with output power and current consumption much
lower.
Transceiver works in 869,40÷869,65MHz (100mW, ver. 8LR100) and 868÷868,6MHz (25mW ver. 8LR10)
European bands with possibility to set the channel width .
XTR-8LR-USB is a radio-modem with Usb interface, used as receiver or data concentrator coming from
XTR-8LR10 and XTR-8LR100 modules. It can handle addressing data for point-to-multipoint or star
networks.
Main radio parameters might be set up smoothly via command mode procedure.
Operating voltage is 5V, current consumption is 20 mA in reception, 135 mA in transmission (+20dBm
ERP).
Main features
Direct transmission or radiomodem mode.
No encoding or preamble is requested.
AT commands for parameters setting of internal
registers.
HyperTerminal* compatible.
Channels: 7 max.
Small form factor
UART data rate: 9600, 19200, 115200 bps.
Emitted power: max 100 mW.
Sensitivity from -118 to-144 dBm.
Operating voltage: 5V.
Standard distance: 8000 m.
The technical features can change without forecasting. AUR°EL S.p.A doesn't assume any responsability of demage due to the improper use of the device.
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AUR°EL S.p.A. Via Foro dei Tigli, 4 - 47015 Modigliana (FC) – ITALY
Tel.: +39.0546.941124 Fax: +39.0546.941660
http://www.aurelwireless.com
XTR-8LR-USB with external antenna
( 25x70x13mm ).
- email:
rfcomm@aurel.it
XTR-8LR-USB
Application
Home and building automation
Irrigation control
Energy monitoring
Industrial sensors
SCADA
Alarms
Automatic Meter Reading
User Manual
Rev 1.3 18/11/2019
Page 1 of 17

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Summary of Contents for AUREL XTR-8LR-USB

  • Page 1 --------------------------------------------------------------------------------------------------------------------------------------------------------------------- User Manual XTR-8LR-USB with external antenna XTR-8LR-USB is an half duplex transceiver perfectly suitable for long range communication thanks to its patented “LoRa ™” modulation technique, capable to ensure high interference immunity, very low current consumption and high sensitivity.

  • Page 2: Absolute Maximum Ratings

    XTR-8LR-USB --------------------------------------------------------------------------------------------------------------------------------------------------------------------- User Manual Absolute maximum ratings -20 °C ÷ +70 °C Operating temperature -40 °C ÷ +100 °C Storage temperature Supply voltage +5.5V -1.0 ÷ Vcc + 0.3V Input voltage -1.0 ÷ Vcc + 0.3V Output voltage Technical Features: Min.

  • Page 3: Lora Modulation

    Note4: Test carried out according to method described in ETSI EN 300 220-1 V2.4.1 paragraph 8.3.4 Note5: Test carried out according to method described in ETSI EN 300 220-1 V2.4.1 paragraph 8.4 Description Picture 1: XTR-8LR-USB Normal mode in Rx: indicated through a red led blinking. Command Mode: indicated through a fixed red light led.
  • Page 4 XTR-8LR-USB --------------------------------------------------------------------------------------------------------------------------------------------------------------------- User Manual Bandwidth 250KHz Spreading Factor Sensitivity (dBm) Flying Time (ms) -115 -120 -123 -126 -129 -131 -134 Bandwidth 125KHz Spreading Factor Sensitivity (dBm) Flying Time (ms) -118 -123 -126 -129 -131 -134 -137 Bandwidth 62,5KHz Spreading Factor...
  • Page 5 Tsym Tpachet: data packet total timing in seconds 12,25: Symbols quantity used on preamble From Aurel website you can download an Excel spreadsheet that automatically calculates the flight time radio according to selected parameters. Data packet frame: XTR-8LR100 is a radio modem working in packet mode and handling addresses for point-to-multipoint networks.
  • Page 6 Payload of different length of 15 Byte, will be transmitted but rejected by the receiving unit. Installing procedure and use To start using the XTR-8LR-USB, proceed as follows: The technical features can change without forecasting. AUR°EL S.p.A doesn’t assume any responsability of demage due to the improper use of the device.
  • Page 7 XTR-8LR-USB --------------------------------------------------------------------------------------------------------------------------------------------------------------------- User Manual Install computer drivers for the USB port, for this purpose use the following link http://www.ftdichip.com/Drivers/D2XX.htm taking care to identify the appropriate driver for your operating system from the PC. Connect the to the PC's USB port: the computer should report the detection of...
  • Page 8 Start the program and set the communication parameters as shown below. Communication speed 115200 bps, the START bit, 8 data bits, and a STOP bit, no parity. Select the port number that has been associated with XTR-8LR-USB, in this case the port associated with the XTR-8LR-USB is the "Port 109".
  • Page 9 "Send ASCII." If communication is successful, you will receive an answer as the following screen, and the RED LED will be lit: By now, you can send AT commands to the XTR-8LR-USB. Send ATS90 command as below, you will receive as a response status of all setting records, with the exception of ATS0 register (hardware and firmware).
  • Page 10 ATWR to save the new parameters on EEPROM and exit the command mode, as a confirmation of the command, the XTR-8LR-USB will respond with OK EXIT and red LED turns off (see below). Once out of the Command Mode will recover in Normal receive mode (Blink RED LED every 3 seconds) The technical features can change without forecasting.
  • Page 11 XTR-8LR-USB --------------------------------------------------------------------------------------------------------------------------------------------------------------------- User Manual Operation modes: Device works in 2 states operation modes: 1. COMMAND MODE 2. NORMAL MODE 1. Command Mode Command mode allows the user to set up operating parameters. Configuration occurs via AT commands sent to RealTerm software or a dedicated PC interface.
  • Page 12 XTR-8LR-USB --------------------------------------------------------------------------------------------------------------------------------------------------------------------- User Manual Operating band frequency 0= 868,00 – 868,60 MHz (NI, BANDA disponibile per altre versioni) 1= 869,40 – 869,65 MHz (default) BANDWIDTH RF channel bandwidth 0 = 20,8 KHz 1 = 62,5 KHz (default) 2 = 125 KHz...
  • Page 13 XTR-8LR-USB --------------------------------------------------------------------------------------------------------------------------------------------------------------------- User Manual Registers value restores S1 = x (x = returned value) REGISTERS S2 = x STATUS S3 = x …. Sn = x Setted at 1 it stores on register, the 0 = Modified values (r) DEFAULT...
  • Page 14 ATWR. 3. NORMAL Enabled once the XTR-8LR-USB is inserted in a PC USB port and also once it comes back from “Command Mode”. Normal mode is shown by the red led blinking each three seconds. The device is able to receive data thought RF and through Usb and forward consequently.
  • Page 15 XTR-8LR-USB --------------------------------------------------------------------------------------------------------------------------------------------------------------------- User Manual The absence of data towards the usb is given by a Timeout ( equal to the 2 serial byte time based on the data rate ); expired it the transceiver does not memorize other data in input until the whole data forwarding inside the radio buffer.
  • Page 16 Address: 0x0002 Payload: provalink Step 2 – RF Transmission Node Step 3 - from Node 0x0001 XTR-8LR-USB to 0x0002 Dongle Dongle Address: 0x0001 Payload: provalink Figura 5: Diagramma di trasmissione ricezione del messaggio “provalink” dal nodo 1 al nodo 2.
  • Page 17 The device has a SMA connector for having an external antenna. Reference Rules XTR-8LR-USB transceiver is compliant with the European set of rules EN 300 22-2 and EN 301 489-3. Tests has been performed through transmissions of Pseudo Code Random at 500bps(CEPT 70-03). The occupancy of bandwidth has been performed through transmissions of Pseudo Code Random at 500bps.