2AXXTDTDS-622C-LORADTDS 622 Module for LoRa communication

DTDS LoRa Module User Manual LoRa Module – DTDS-622C DTDS-622C Product Manual Page 2 DTDS2130002 Rev 1.0 User Manual April 2021 Contents Product Description .................................................................................................................................... 3 General Features ......................................................................................................................................... 3 Applications ................................................................................................................................................. 3 Package View .............................................................................................................................................. 4 Pin I/O Description and Serial Configuration .......................................................................................... 5 Connection Circuit ...................................................................................................................................... 6 Technical Specifications ............................................................................................................................. 7 Physical Dimensions ................................................................................................................................... 8 Notes ............................................................................................................................................................. 9 FCC Compliance Statement (USA) FCC ID: 2AXXTDTDS-622C-LORA Compliance Statements: 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. 2. This device must accept any interference received, including, an interference that may cause undesired operation. Caution Statements: • Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment. • This equipment should be installed and operated with a minimum distance of 20 cm between the radiator and your body. This module is labelled with its own FCC ID. The end product using this module is required to display a label on itself referring to the enclosed module details. The final product must be labelled with the following: “Contains FCC ID: 2AXXTDTDS-622C-LORA” The OEM using this product should not provide information to end user regarding installation or removal of this transmitter RF module or information to change RF related parameters in the user manual or by any means, with the end product. The OEM shall integrate the module as per the module Integration guidelines and grant condition. The OEM is responsible for ensuring compliance with the applicable FCC rules for the transmitters operating individually and simultaneously. DTDS-622C Product Manual Page 3 DTDS2130002 Rev 1.0 User Manual April 2021 Product Description DTDS LoRa-622C is a low cost, low power consumption long range solution for wireless communication. The module complies with both Class A, B and Class C LoRaWAN protocol specifications. It is suitable for Long Range sensor-based applications interfaced with an external host MCU. It also provides high interference immunity and meets all the LoRaWAN protocol specifications. General Features 1. Operating Temperature range -40 °C to +85 °C. 2. AT Commands Interface over UART. 3. Low power consumption. 4. Assembly pads for easy PCB mounting. 5. Highly compact Form Factor of 15 x 26 x 5 mm. Applications 1. Water Meters 2. Energy Meters 3. Home Automation 4. Lighting Monitoring and Control 5. Environmental Sensors 6. Smart Cities 7. Other IoT Products DTDS-622C Product Manual Page 4 DTDS2130002 Rev 1.0 User Manual April 2021 Package View Figure 1- Top View of DTDS-622C Module DTDS-622C Product Manual Page 5 DTDS2130002 Rev 1.0 User Manual April 2021 Pin I/O Description and Serial Configuration Pin Number Pin Name Pin Type Pin Description 1 GND - Ground 2 GND - Ground 3 GND - Ground 4 GPIO/AN0 I/O Analog Input/GPIO 5 Reserved - Reserved for future use 6 Reserved - Reserved for future use 7 Reserved - Reserved for future use 8 Reserved - Reserved for future use 9 NC - No Connection 10 VDD_MAIN I Supply for the Main Board 11 Reserved - Reserved for future use 12 Reserved - Reserved for future use 13 NC - No Connection 14 GND - Ground 15 NC - No Connection 16 UART_TxD O AT Commands Transmit to Host 17 UART_RxD I AT Commands Receive from Host 18 NC - No Connection 19 GPIO/AN3 I/O Analog Input/GPIO 20 GPIO/AN2 I/O Analog Input/GPIO 21 GPIO/AN1 I/O Analog Input/GPIO 22 VDD_RF I Supply for the RF Module 23 GND - Ground 24 GND - Ground 25 ANT I/O Antenna Signal 26 GND - Ground Table 1 - Pin Description for DTDS-622C Module Configuration Items Value Baud rate 115200 bps Data bit 8 bits Parity bit None Stop bit 1 bit Flow control None Local echo back No Line terminator Transmission: CR+LF Reception: CR+LF Table 2 – Serial/ UART Configuration DTDS-622C Product Manual Page 6 DTDS2130002 Rev 1.0 User Manual April 2021 Connection Circuit Figure 2- Connection Diagram for User Application Note: Antenna does not form the scope of supply with the module. An external Antenna can be connected to the UFL connector available on the module or the Antenna output from the module can be extended to an SMA or any other type of connector on the host application board. The recommended Antenna is 50 Ohms terminated Taoglas T1.92.2113 Omnidirectional Antenna with a peak gain not exceeding 2.14 dBi in the bent configuration. DTDS-622C Product Manual Page 7 DTDS2130002 Rev 1.0 User Manual April 2021 Technical Specifications Parameters Typical Specifications Units Mechanical Specification Size 15(W) X 27(L) X 5(H) mm Package 26 pins, SMD - Electrical Specification Power Supply 3 – 3.7, 3.3 Typical V Standby Current < 4 mA Sleep Current ≈15 μA TX Current 138@BW 125 KHz, 22 dBm,…

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Produkte Products www.tuv.com EUT External Photos ReferenceTest Report No: ULR-TC568821300000026F Seite 1 von 3 Page 1 of 3 EUT External Photo Photo 1: Module with acessories Photo 2: Module connected to external antenna Produkte Products www.tuv.com EUT External Photos ReferenceTest Report No: ULR-TC568821300000026F Seite 2 von 3 Page 2 of 3 Photo 3: Module used with supporting board for testing purpose Photo 4: Module used with supporting board for testing purpose Produkte Products www.tuv.com EUT External Photos ReferenceTest Report No: ULR-TC568821300000026F Seite 3 von 3 Page 3 of 3 Photo 5: battery connected to Module via supporting board and USB cable used for the configuration of module via supporting board

LABEL LOCATION INDICATOR – PICTURE OF THE DTDS’S 622C Module Label Location

Produkte Products www.tuv.com EUT Internal Photos ReferenceTest Report No: ULR-TC568821300000026F Seite 1 von 2 Page 1 of 2 EUT Internal Photo Photo 1: Module Front view Photo 2: Module Rear view Produkte Products www.tuv.com EUT Internal Photos ReferenceTest Report No: ULR-TC568821300000026F Seite 2 von 2 Page 2 of 2 Photo 4: Module Dimentional view Photo 5: Module Dimentional view

Produkte Products www.tuv.com ReferenceTest Report No: ULR-TC568821300000026F Seite 1 von 2 Page 1 of 2 1 Radio Frequency Human Exposure Evaluation: 1.1 RF Exposure Measurement The limit for Maximum Permissible Exposure (MPE) specified in FCC 1.1310. The gain of the antennas used in the product is extracted from the Antenna data sheets provided and also the maximum total power input to the antenna is measured. Through the Friis transmission formula and the maximum gain of the antenna, we can calculate the distance, away from the product, where the limit of MPE is reached. Although the Friis Transmission formula is far field assumption, the calculated result of that is an over-prediction for near field power density. It is taken as worst case to specify the safety range. 1.2 RF Exposure Limit According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environmental impact of the human exposure to radio-frequency (RF) radiation as specified in 1.1307 (b) showed in Table. F or ƒ = Frequency in MHz Produkte Products www.tuv.com ReferenceTest Report No: ULR-TC568821300000026F Seite 2 von 2 Page 2 of 2 1.3 Assessment Conditions Protocol Frequency band (MHz) Maximum conducted output power in (dBm)* Tune-up tolerance Output power including tune-up tolerance (mW) Antenna gain in Linear Scale Power density (mw/cm2 ) Limit(mw/ cm2) Sub GHz 902.3 18.49 ±1 88.9201 1.3212 0.02337 0.60153 *Note: Manufacturer declared TuneUp tollarance of ±1dB is considered in the calculation Antenna gain : Staight 1.21 dBi Friis Formula Friis Formula is used for assessment of power density. Friis Transmission Formula: Pd = (Pout * G) / (4*pi*r²) Where Pd = power density in mW/cm² Pout = output power to antenna in mW G = gain of antenna in linear scale Pi = 3.1416 r = Minimum distance between observation point and the center of radiator in cm If we know the maximum gain of the antenna and the total output power to the antenna, through calculation, we will know MPE value at distance 20cm (MPE evaluation performed with minimum separation distance from the User is 20cm).

Prüfbericht – Produkte Test Report - Products Prüfbericht-Nr.: Test report no.: ULR-TC568821300000026F Auftrags-Nr.: Order no.: 166545026 010 Seite 1 von 47 Page 1 of 47 Kunden-Referenz-Nr.: Client reference no.: NA Auftragsdatum: Order date: 2021-04-09 Auftraggeber: Client: DTDS Technology Private Ltd 4-4-82/22, Near Veera Reddy Nagar, Nacharam Main Road, Hyderabad - 500076 Prüfgegenstand: Test item: DTDS’s 622 Module for LoRa communication Bezeichnung / Serien -Nr.: Identification / Serial no.: DTDS’s 622C Module / 2104009 Auftrags-Inhalt: Order content: Testing and issue of Test Report and Grant Certificate Prüfgrundlage: Test specification: FCC Part 15 Subpart C 15.247, 15.207 & 15.203 Wareneingangsdatum: Date of sample receipt: 2021-04-14 Prüfmuster-Nr.: Test sample no: A003034135-001 Prüfzeitraum: Testing period: 2021-04-14 - 2021-04-16 Ort der Prüfung: Place of testing: Wireless laboratory, Bangalore Prüflaboratorium: Testing laboratory: TÜV Rheinland (India) Pvt. Ltd. 27/B,2nd cross road, Electronic city Phase1, Banglore-560100, India FCC Test Site Registration No: 496599 Prüfergebnis*: Test result*: Pass geprüft von: tested by: genehmigt von: authorized by: Datum: Date: 2021-04-16 Ausstellatum: Issue date: 2021-05-11 Stellung / Position: Rajesh M Gowda Engineer Stellung / Position: Mahammadgouse Kaladagi Assistant Manager Sonstiges / Other: FCC ID : 2AXXTDTDS-622C-LORA Zustand des Prüfgegenstandes bei Anlieferung: Condition of the test item at delivery: Prüfmuster vollständig und unbeschädigt Test item complete and undamaged * Legende: 1 = sehr gut 2 = gut 3 = befriedigend 4 = ausreichend 5 = mangelhaft P(ass) = entspricht o.g. Prüfgrundlage(n) F(ail) = entspricht nicht o.g. Prüfgrundlage(n) N/A = nicht anwendbar N/T = nicht getestet * Legend: 1 = very good 2 = good 3 = satisfactory 4 = sufficient 5 = poor P(ass) = passed a.m. test specification(s) F(ail) = failed a.m. test specification(s) N/A = not applicable N/T = not tested Dieser Prüfbericht bezieht sich nur auf das o.g. Prüfmuster und darf ohne Genehmigung der Prüfstelle nicht auszugsweise vervielfältigt werden. Dieser Bericht berechtigt nicht zur Verwendung eines Prüfzeichens. This test report only relates to the a. m. test sample. Without permission of the test center this test report is not permitted to be duplicated in extracts. This test report does not entitle to carry any test mark. TÜV Rheinland (India) Pvt. Ltd, Plot No.27/B, 2nd Cross, Electronic city, Industrial Area, Phase I, Hosur Road Bangalore-560 100, India Mail: [email protected] ∙ Web: www.ind.tuv.com Produkte Products www.tuv.com Prüfbericht - Nr.: Test Report No.: ULR-TC568821300000026F Seite 2 von 47 Page 2 of 47 TEST SUMMARY Test Item FCC Result Maximum conducted (Peak) output power 15.247 (b)(2) Pass Occupied bandwidth and 20dB Bandwidth 15.247 (a) (i) Pass Number of Hopping channels 15.247 (a) (i) Pass Carrier Frequency Separation 15.247 (a) (1) Pass Time of Occupancy (Dwell Time) 15.247 (a) (i) Pass Emissions in non-restricted frequency bands 15.247 (d) Pass Spurious Radiated Emissions and Restricted Bands of Operation FCC 15.209 / FCC 15.205 Pass Antenna requirement 15.203 Pass Conducted Emission test on AC Power Line FCC 15.207 Pass Product Category: Electronics Testing Test Discipline: EMC Test Facility Produkte Products www.tuv.com Prüfbericht - Nr.: Test Report No.: ULR-TC568821300000026F Seite 3 von 47 Page 3 of 47 REVISION HISTORY OF THIS REPORT Report Number Version Description Issue date ULR-TC568821300000026F 01 Initial issue of report 29-04-2021 ULR-TC568821300000026F 02 Reviewer comments updated 11-05-2021 Produkte Products www.tuv.com Prüfbericht - Nr.: Test Report No.: ULR-TC568821300000026F Seite 4 von 47 Page 4 of 47 Table of Contents 1 GENERAL REMARKS ........................................................................................................................................... 5 1.1 Attachments .................................................................................................................................................. 5 2 TEST SITES .......................................................................................................................................................... 6 2.1 Testing Facilities............................................................................................................................................ 6 2.2 List of Test and Measurement Instruments ................................................................................................... 6 3 GENERAL PRODUCT INFORMATION ................................................................................................................. 7 3.1 Product Function and Intended Use.............................................................................................................. 7 3.2 Ratings and System Details of Equipment under Test ................................................................................. 7 3.3 Measurement Uncertainty: ............................................................................................................................ 8 4 TEST SET-UP AND OPERATION MODE ............................................................................................................. 9 4.1 Principle of Configuration Selection .............................................................................................................. 9 4.2 Test Operation and Test Software ................................................................................................................ 9 4.3 Special Accessories and Auxiliary Equipment .............................................................................................. 9 4.4 Countermeasures to achieve EMC Compliance ........................................................................................... 9 4.5 List of frequencies ....................................................................................…

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Produkte Products www.tuv.com Test Setup Photos ReferenceTest Report No: ULR-TC568821300000026F Seite 1 von 5 Page 1 of 5 Frequency range :9KHz–30MHz Polarization : Parallel Frequency range :9KHz–30MHz Polarization : Perpendicular Produkte Products www.tuv.com Test Setup Photos ReferenceTest Report No: ULR-TC568821300000026F Seite 2 von 5 Page 2 of 5 Frequency range :30MHz–200MHz Polarization : Vertical Frequency range : 30MHz–200MHz Polarization : Horizontal Produkte Products www.tuv.com Test Setup Photos ReferenceTest Report No: ULR-TC568821300000026F Seite 3 von 5 Page 3 of 5 Frequency range :200MHz–1GHz Polarization : Vertical Frequency range :200MHz–1GHz Polarization : Horizontal Produkte Products www.tuv.com Test Setup Photos ReferenceTest Report No: ULR-TC568821300000026F Seite 4 von 5 Page 4 of 5 Frequency range :1GHz-18GHz Polarization : Vertical Frequency range :1GHz-18GHz Polarization : Horizontal Produkte Products www.tuv.com Test Setup Photos ReferenceTest Report No: ULR-TC568821300000026F Seite 5 von 5 Page 5 of 5 Conducted Test Setup Conducted Emission Test Setup