User Manual for WisLink-LoRa Concentrator Module Mini PCI-e Edition RAK2247 SPI or USB Version V1.0 | December2018 www.RAKwireless.com Visit our website for more document. 15 PAGES RAK2247 Table of Contents 1 Overview ...................................................................................................................................... 3 1.1 Introduction ........................................................................................................................... 3 1.2 Package Contents ................................................................................................................. 3 2 LoRa Concentrator Module RAK2247 ....................................................................................... 4 2.1 Overview ............................................................................................................................... 4 2.2 Block Diagram ....................................................................................................................... 4 2.3 Operating Frequencies .......................................................................................................... 5 2.4 Pin Definition ......................................................................................................................... 5 2.5 Power Supply ........................................................................................................................ 7 2.6 SPI Interface ......................................................................................................................... 7 2.7 USB Interface ........................................................................................................................ 7 2.8 GPS_PPS.............................................................................................................................. 7 2.9 RESET .................................................................................................................................. 7 2.10 Antenna RF Interface .......................................................................................................... 8 2.11 Electrical Characteristics ..................................................................................................... 8 2.11.1 Absolute Maximum Rating ....................................................................................... 8 2.11.2 Maximum ESD ......................................................................................................... 9 2.11.3 Operating Conditions ............................................................................................... 9 2.11.4 Power Consumption ................................................................................................. 9 2.11.5 RF Characteristics ................................................................................................... 9 2.12 Mechanical Dimensions .................................................................................................... 10 2 3 LoRa Antenna ............................................................................................................................ 11 3.1 Overview ............................................................................................................................. 11 3.2 Antenna Parameter ............................................................................................................. 11 4 SchematicsReference ............................................................................................................... 12 5 Warning ...................................................................................................................................... 13 6 Revision History ........................................................................................................................ 15 7 Document Summary ................................................................................................................. 15 RAK2247 User Manual V1.0 2 RAK2247 1 Overview 1.1 Introduction The RAK2247 is a LoRa concentrator module with the mini PCIe form factor based on SX1301, which enables an easy integration into an existing routers and others network equipment with LoRa Gateway capabilities.It can be used in any embedded platform offering a free mini-PCIe slot with SPI or USB connection. RAK2247 is a complete and cost efficient LoRa gateway solution offering up to10 programmable parallel demodulation paths. It targets at smart metering fixed networks and Internet of Things applications with up to 500 nodes per km2 in moderately interfered environment. The modules have the industry standard PCI Express Mini Card form factor, which enables easy integration into an application board and is also ideal for manufacturing of small series. The main features are listed below:
Compatible with Mini PCI-e Edition specification with metal cooling fin. 3 SX1301 base band processor emulates 49 x LoRa demodulators 10 parallel demodulation paths. 2 x SX125x Tx/Rx front-ends high/ low frequency. Build in FT2232H to convert SPI interface of SX1301 to USB2.0. Voltage of Mini PCI-e is 3.3v, compatible with 3G/LTE card of Mini PCI-e type. Supports US915 region. Supports optional SPI or USB interfaces. 1.2 Package Contents RAK2247 board
(1x) LoRa Antenna of N-Type Male connector(1x) Figure1 | Package Contents RAK2247 User Manual V1.0 3 RAK2247 2 LoRa Concentrator Module RAK2247 2.1 Overview 2.2 Block Diagram Figure2 | Module View The block diagram of RAK2247-SPI shown as below. Figure3 | RAK2247-SPI block diagram 4 RAK2247 User Manual V1.0 4 RAK2247 As described in Figure 3, the RAK2247 card integrates one SX1301 chip and two SX1255/7 and other chip for RF signal, which represents the core of the device, providing the related LoRa modem and processing functionallilies. Additional signal conditioning circuitry is implemented for PCI Express Mini Card compliance, and one UFL connectors are available for external antennas integration. 2.3 Operating Frequencies The board supports all LoRaWAN frequency channels as below. Which is easy to configure while building the firmware from the source code. Region Frequency ( MHz ) North America US: 923.3-927.5Mhz Table 1 | Operating Frequencies 2.4 Pin Definition No Mini PCIEx PIN Rev. 2.0 RAK2247 PIN Power I/O Description Remarks 5 WAKE#
NC 3.3Vaux 3.3Vaux 3.3Vaux RAK2247power supply input GND Ground Connect to Ground 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 COEX1 GND COEX2 1.5V CLKREQ#
UIM_PWR UIM_DATA REFCLK-
UIM_CLK REFCLK+
UIM_RESET GND UIM_SPU UIM_IC_DM NC GND NC NC NC NC NC NC NC NC NC GND NC NC(5V optional For PA) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Internally not connected Connect to 3.3 V Internally not connected Internally not connected Internally not connected Internally not connected Internally not connected Internally not connected Internally not connected Internally not connected Internally not connected Internally not connected Internally not connected Internally not connected RAK2247 User Manual V1.0 5 GND GND GND Ground Connect to ground GND Ground Connect to ground 18 19 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 GND Reserved 20 W_DISABLE1#
PERn0 3.3Vaux PERp0 GND GND 1.5V GND SMB_CLK PETn0 SMB_DATA PETp0 GND GND GND 1PPS NC GND NC NC GND GND NC GND NC NC NC NC GND GND GND Ground Connect to ground GND GND Ground Connect to ground PERST#
RESET 3.3Vaux 3.3Vaux RAK2247 Internal connection 1PPSfor SX1301 Internally not connected RAK2247 reset input Active high(100ns) for SX1301 reset. Internally not connected RAK2247 supply input Connect to 3.3 V Internally not connected Ground Connect to ground Ground Connect to ground Connect to ground Internally not connected Internally not connected Internally not connected Internally not connected Internally not connected Ground Ground Connect to ground Connect to ground 90-ohm nominal differential impedance. Pull-up, pull-down and series resistors as required by USB 2.0 specifications are part of the USB pin driver and need not be provided externally. Connect to ground 6 90-ohm nominal differential impedance. Pull-up, pull-down and series resistors as required by USB 2.0 specifications are part of the USB pin driver and need not be provided externally. Connect to 3.3 V Connect to ground Connect to 3.3 V Internally not connected Internally not connected N/A N/A N/A N/A I I N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A I I N/A N/A N/A I/O N/A I/O N/A I/O N/A I/O GND GND GND GND GND USB USB_D-
USB_D-
I/O USB Data Line D-
GND GND USB_D+
USB_D+
GND USB N/A I/O Ground USB Data Line D+
3.3Vaux GND 3.3Vaux 3.3Vaux 3.3Vaux GND GND N/A 3.3Vaux 3.3Vaux RAK2247 supply input Ground RAK2247 supply input LED_WWAN#
GND LED_WLAN#
NC GND NC GND Ground Connect to ground Reserved PCIe_SCK Host SPI CLK Max 10MHz clock LED_WPAN#
NC Internally not connected Reserved PCIe_MISO Host SPI MISO 1.5V NC Internally not connected Reserved PCIe_MOSI Host SPI MOSI GND GND GND Ground Connect to ground 51 W_DISABLE2#
PCIe_CSN Host SPI CS RAK2247 User Manual V1.0 6 RAK2247 52 3.3Vaux 3.3Vaux 3.3Vaux I Connect to 3.3 V RAK2247 supply input Table 2 | Pin Definition 2.5 Power Supply RAK2247 card must be supplied through the 3.3Vaux pins by a DC power supply. The voltage must be stable, because during this operation the current drawn from 3.3Vaux can vary significantly, based on the power consumption profile of the SX1301 chip (see SX1301 DS). A SPI interface is provided on the PCIe_SCK, PCIe_MISO, PCIe_MOSI, PCIe_CSN pins of the system connector. The SPI interface gives access to the configuration register of SX1301 via a synchronous full-duplex protocol. Only the 2.6 SPI Interface slave side is implemented. 2.7 USB Interface 7 Note: RAK2247-SPI version don't have this interface. RAK2247 card can support the high speed USB to SPI by FT2232HL, it includes a high-speed USB 2.0 compliant interface with maximum 480 Mb/s data rate, representing the interface for any communication with an external host application processor. The module itself acts as a USB device and can be connected to any USB host equipped with compatible drivers. For more information, please refer to the data sheet of FT2232HL. RAK2247 card includes the 1PPS input for received packets time-stamped. 2.8 1PPS 2.9 RESET RAK2247 card includes the RESET active-high input signal to reset the radio operations as specified by the SX1301 Specification. RAK2247 User Manual V1.0 7 RAK2247 2.10 Antenna RF Interface The modules have one RF interfaces over a standard UFL connectors (Hirose U. FL-R-SMT) with a characteristic impedance of 50OHM. The RF port (J1) supports both Tx and Rx, providing the antenna interface. 2.11 Electrical Characteristics Stressing the device above one or more of the ratings listed in the Absolute Maximum Rating section may cause permanent damage. These are stress ratings only. Operating the module at these or at any conditions other than those specified in the Operating Conditions sections of the specification should be avoided. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. The operating condition range define those limit within which the functionality of the device is guaranteed. Where application information is given, it is advisory only and does not form part of the specification. 8 2.11.1 Absolute Maximum Rating Limiting values given below are in accordance with the Absolute Maximum Rating System (IEC 134). Symbol Description Condition Min. Max. 3.3Vaux Module supply voltage Input DC voltage at 3.3Vaux pins 0.3V 3.6V USB USB D+/D- pins Input DC voltage at USB interface pins SPDT_SEL Port select RESET RAK2247 reset input Input DC voltage at SPDT_SEL input pins Input DC voltage at RESET input pin SPI GPS_PPS GPS 1 pps input SPI interface Input DC voltage at SPI interface pin Input DC voltage at GPS_PPS input pin 0.3V 0.3V 0.3V 0.3V 3.6V 3.6V 3.6V 3.6V 3.6V Rho_ANT Antenna ruggedness Output RF load mismatch ruggedness at ANT1 10:1VSWR Tstg Storage Temperature 40C 85C Table 3 | Absolute maximum ratings The product is not protected against overvoltage or reversed voltages. If necessary, voltage spikes exceeding the power supply voltage specification, given in table above, must be limited to values within the specified boundaries by using appropriate protection devices. RAK2247 User Manual V1.0 8 RAK2247 2.11.2 Maximum ESD Parameter Min Typical Max Remarks ESD sensitivity for all pins except ANT1 ESD sensitivity for ANT1 ESD immunity for ANT1 1000V Human Body Model according to JESD22-A114 1000V Human Body Model according to JESD22-A114 4000V Contact Discharge according to IEC 61000-4-2 8000V Air Discharge according to IEC 61000-4-2 Note: RAK2247 card are Electrostatic Sensitive Devices and require special Table 4 | Maximum ESD ratings precautions when handling. 2.11.3 Operating Conditions to switch-on the module. Input voltage at 3.3Vaux must be above the normal operating range minimum limit Symbol Parameter 3.3Vaux Module supply operating input voltage14 Min. 3.00V Typical 3.30V Max. 3.60V Table 5 | PowerSupply Range 9 2.11.4 Power Consumption Mode Condition Min Type Max Idle-Mode All of the chip on the board enter idle mode or shutdown. 68uA Active-Mode(TX) TX enabledand RX disabled. Active-Mode(RX ) TX disabled and RX enabled. Table 6 |Module 3.3Vaux supply current consumption 440mA 470mA 2.11.5 RF Characteristics The following table gives typically sensitivity level of the RAK224 7 card. Signal Bandwidth/[KHz]
Spreading Factor Sensitivity/[dBm]
500 500 12 7
-134
-120 Table 7 |LoRa RF Characteristics RAK2247 User Manual V1.0 9 RAK2247 2.12 Mechanical Dimensions RAK2247 card are fully compliant to the 52-pin PCI Express Full-Mini Card Type F2 form factor, with top-side and bottom-side keep-out areas, with 50.95 mm nominal length, 30 mm nominal width and all the other dimensions as defined by the PCI Express Mini Card Electromechanical Specification [9] except for the card thickness (nominal value is 3.7 mm), as described in the next figure. The weight of the RAK2247 card is about 9.7 g.KHz 10 Figure 4| RAK2247 card mechanical dimensions (top view, side view, bottom view) For further details regarding mechanical specifications see the PCI Express Mini Card Electromechanical Specification. RAK2247 User Manual V1.0 10 RAK2247 11 3 LoRa Antenna 3.1 Overview Figure 5|LoRa Antenna Overview 3.2 Antenna Parameter VSWR(Voltage Standard Wave Radio) Items Gain Specifications 1:1.5 5.8 dBi WorkingTemperature&Humidity T:-35 C ~ +80 C, H: 0% ~ 95%
StorageTemperature&Humidity T:-40 C ~ +85 C, H: 0% ~ 95%
Table 8| LoRa Antenna Parameter RAK2247 User Manual V1.0 11 RAK2247 4 SchematicsReference RAK2247 card refer to Semtech's reference design of SX1301, the SPI interface or USB interface, which convert SPI to USB2.0 by FT2232H, can be used on PCIE connector. 12 RAK2247 User Manual V1.0 12 RAK2247 5 Warning FCC WarningThis 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 interference that may cause undesired operation. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. When the module is installed in the host device, the FCC ID label must be visible through a window on the final device or it must be visible when an access panel, door or cover is easily removed. If not, a second label must be placed on the outside of the final device that contains the following text: Contains FCC ID: 2AF6B-RAK2247. Maximum antenna gain allowed for use with this device is 5.8 dBi. This module complies with FCC radiation exposure limits set forth for an uncontrolled environment .This equipment should be installed and operated with minimum distance 20 cm between the radiator& your body. Manufacture name and address Shenzhen Rakwireless Technology Co., Ltd. Room 506, Bldg B, New Compark, Pingshan First Road, Taoyuan Street, XiLi town, Nanshan District, Shenzhen, China 13 Integration instructions for host product manufacturers according to KDB 996369 D03OEM Manual v01 2.2 List of applicable FCC rules The modular complies with Part 15.247 of the FCC Rules. 2.3 Specific operational use conditions This module is stand-alone modular. If the end product will involve the Multiple simultaneously transmitting condition or different operational conditions for a stand-alone modular transmitter in a host, host manufacturer have to consult with module manufacturer for the installation method in end system. 2.4 Limited module procedures RAK2247 User Manual V1.0 13 RAK2247 Not applicable 2.5 Trace antenna designs Not applicable 2.6 RF exposure considerations 2.7 Antennas To maintain compliance with FCCs RF Exposure guidelines, This equipment should be installed and operated with minimum distance of 20cm from your body. This radio transmitter FCC ID: 2AF6B-RAK2247 has been approved by Federal Communications Commission to operate with the antenna types listed below, with the maximum permissible gain indicated. Antenna types not included in this list that have a gain greater than the maximum gain indicated for any type listed are strictly prohibited for use with this device. Antenna Description Antenna Type Modullation Type Lora Antenna Monopole Chirp Modulation 2.8 Label and compliance information Impedance Maximum antenna
() 50 gain(dBi) 5.8dBi The final end product must be labeled in a visible area with the following" Contains 14 FCC ID: 2AF6B-RAK2247 2.9 Information on test modes and additional testing requirements Host manufacturer is strongly recommended to confirm compliance with FCC requirements for the transmitter when the module is installed in the host. 2.10 Additional testing, Part 15 Subpart B disclaimer Host manufacturer is responsible for compliance of the host system with module installed with all other applicable requirements for the system such as Part 15 B RAK2247 User Manual V1.0 14 RAK2247 Date 2018-12-21 6 Revision History Revision Description 1.0 Initial version Table 9 | Revision History 7 Document Summary Document Name:
WisLink-LoRa RAK2247 User Manual Release Date:
December2018 Revision Number:
V1.0 Prepared by Checked by:
Approved by:
Penn Jeff 15 RAK2247 User Manual V1.0 15