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Ublox SARA-R4 Series System Integration Manual

Ublox SARA-R4 Series System Integration Manual

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SARA-R4/N4 series
System Integration Manual
System Integration Manual
Abstract
This document describes the features and the integration of the size-optimized SARA-R4/N4 series cellular
modules. These modules are a complete, cost efficient, performance optimized, multi-mode and multi
band LTE Cat M1 / NB1 and EGPRS solution in the compact SARA form factor.
www.u-blox.com
UBX-16029218 - R11
SARA-R4/N4

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  • Page 1 SARA-R4/N4 series System Integration Manual System Integration Manual SARA-R4/N4 Abstract This document describes the features and the integration of the size-optimized SARA-R4/N4 series cellular modules. These modules are a complete, cost efficient, performance optimized, multi-mode and multi band LTE Cat M1 / NB1 and EGPRS solution in the compact SARA form factor. www.u-blox.com UBX-16029218 - R11...

  • Page 2: Document Information

    SARA-R4/N4 series - System Integration Manual Document Information Title SARA-R4/N4 series Subtitle System Integration Manual Document type System Integration Manual Document number UBX-16029218 Revision and date 20-Feb-2019 Disclosure Restriction Product status Corresponding content status Functional Sample Draft For functional testing. Revised and supplementary data will be published later. In Development / Objective Specification Target values.

  • Page 3: Table Of Contents

    SARA-R4/N4 series - System Integration Manual Contents Document Information ..........................2 Contents..............................3 System description ..........................7 1.1 Overview ......................................7 1.2 Architecture ....................................11 1.3 Pin-out ......................................12 1.4 Operating modes ..................................17 1.5 Supply interfaces ..................................21 1.5.1 Module supply input (VCC) ............................
  • Page 4 SARA-R4/N4 series - System Integration Manual 1.13.1 Network indication ................................45 1.13.2 Antenna supervisor................................45 1.13.3 Dual stack IPv4/IPv6................................ 45 1.13.4 TCP/IP and UDP/IP ................................45 1.13.5 FTP ......................................45 1.13.6 HTTP ....................................... 46 1.13.7 Firmware update Over AT (FOAT) ..........................46 1.13.8 Firmware update Over The Air (uFOTA) ........................
  • Page 5 SARA-R4/N4 series - System Integration Manual 2.8.2 Guidelines for general purpose input/output layout design ..............112 2.9 Reserved pins (RSVD) ................................113 2.10 Module placement .................................. 113 2.11 Module footprint and paste mask ..........................114 2.12 Thermal guidelines ................................. 115 2.13 Schematic for SARA-R4/N4 series module integration ..................
  • Page 6 SARA-R4/N4 series - System Integration Manual 4.2.3 Modifications ................................... 131 4.3 Innovation, Science, Economic Development Canada notice ................132 4.3.1 Declaration of Conformity ............................132 4.3.2 Modifications ................................... 133 4.4 European Conformance CE mark ............................. 136 4.5 Taiwanese National Communication Commission ....................137 Product testing ..........................

  • Page 7: System Description

    SARA-R4/N4 series - System Integration Manual System description 1.1 Overview The SARA-R4/N4 series comprises LTE Cat M1, LTE Cat NB1 and EGPRS multi-mode modules in the miniature SARA LGA form-factor (26.0 x 16.0 mm, 96-pin), that allow easy integration in compact designs and a seamless drop-in migration from u-blox cellular module families.
  • Page 8 SARA-R4/N4 series - System Integration Manual SARA-R412M-02B Multi Region 13 ● ● ● ○ ● ● ○ ○ ● ● ● ● ● ● ● ● ● ● SARA-N410-02B Multi Region 13 NB1 ● ● ○ ● ● ○ ○ ●...
  • Page 9 SARA-R4/N4 series - System Integration Manual Item SARA-R404M SARA-R410M SARA-R412M SARA-N410 LTE FDD bands Band 13 (750 MHz) Band 12 (700 MHz) Band 12 (700 MHz) Band 12 (700 MHz) Band 17 (700 MHz) Band 13 (750 MHz) Band 28 (700 MHz) 1, 2, 3 Band 28 (700 MHz) Band 20 (800 MHz)
  • Page 10 SARA-R4/N4 series - System Integration Manual Item SARA-R404M SARA-R410M SARA-R412M SARA-N410 Data rate LTE category M1: LTE category M1: LTE category M1: LTE category NB1: up to 375 kb/s UL up to 375 kb/s UL up to 375 kb/s UL up to 62.5 kb/s UL up to 300 kb/s DL up to 300 kb/s DL...

  • Page 11: Architecture

    SARA-R4/N4 series - System Integration Manual 1.2 Architecture Figure 1 summarizes the internal architecture of SARA-R4/N4 series modules. Filt er Swit ch SIM card det ect ion t ransceiver UART Cellular DDC (I BaseBand Processor SDIO M emory 19.2 M Hz SPI / Digit al Audio VCC (Supply) GPIOs...

  • Page 12: Pin-Out

    SARA-R4/N4 series - System Integration Manual 1.3 Pin-out Table 3 lists the pin-out of the SARA-R4/N4 series modules, with pins grouped by function. Function Pin Name Pin No Description Remarks Power 51, 52, 53 I Module supply VCC supply circuit affects the RF performance and compliance input of the device integrating the module with applicable required certification schemes.
  • Page 13 SARA-R4/N4 series - System Integration Manual Function Pin Name Pin No Description Remarks SIM_IO SIM data Data input/output for 1.8 V / 3 V SIM Internal 4.7 k pull-up to VSIM. See section for functional description. See section for external circuit design-in. SIM_CLK SIM clock 4.8 MHz clock output for 1.8 V / 3 V SIM...
  • Page 14 SARA-R4/N4 series - System Integration Manual Function Pin Name Pin No Description Remarks VUSB_DET USB detect input VBUS (5 V typical) USB supply generated by the host must be connected to this input pin to enable the USB interface. Test-Point for diagnostic / FW update strongly recommended. See section 1.9.2 for functional description.
  • Page 15 SARA-R4/N4 series - System Integration Manual Function Pin Name Pin No Description Remarks SDIO SDIO_D0 SDIO serial data [0] Not supported by “00”, “01” and “x2” product versions. See section 1.9.4 for functional description. See section 2.6.4 for external circuit design-in. SDIO_D1 SDIO serial data [1] Not supported by “00”, “01”...
  • Page 16 SARA-R4/N4 series - System Integration Manual Function Pin Name Pin No Description Remarks I2S_WA / S word alignment I S word alignment, alternatively configurable as SPI_MOSI SPI Master Output Slave Input Not supported by “00”, “01” and “x2” product versions. See section 1.10 for functional description.

  • Page 17: Operating Modes

    SARA-R4/N4 series - System Integration Manual 1.4 Operating modes SARA-R4/N4 series modules have several operating modes. The operating modes are defined in Table 4 and described in detail in Table 5, providing general guidelines for operation. General Status Operating Mode Definition Power-down Not-Powered Mode VCC supply not present or below operating range: module is switched off.
  • Page 18 SARA-R4/N4 series - System Integration Manual Mode Description Transition between operating modes Deep-Sleep Only the internal 32 kHz reference is active. The modules automatically switch from the active mode to low power deep sleep mode whenever possible, upon expiration of the The RF section and the application interfaces 6 seconds AT inactivity timer, and upon expiration of “Active Timer”, are temporarily disabled and switched off: the...
  • Page 19 SARA-R4/N4 series - System Integration Manual Mode Description Transition between operating modes Active Module is switched on with application The modules enter active mode from power-off mode when the interfaces enabled or not suspended: the host processor implements a clean switch-on procedure by using module is ready to communicate with an the PWR_ON pin (see 1.6.1).
  • Page 20 SARA-R4/N4 series - System Integration Manual Figure 2 describes the transition between the different operating modes. powered Apply VCC Rem ove VCC Power off Swit ch ON: Swit ch OFF: • PW R_ON • AT+CPW ROFF • PW R_ON Incom ing/out going dat a If PSM m ode is enabled, or ot her dedicat ed device if AT Inact ivit y Tim er and...

  • Page 21: Supply Interfaces

    SARA-R4/N4 series - System Integration Manual 1.5 Supply interfaces 1.5.1 Module supply input (VCC) The modules must be supplied via the three VCC pins that represent the module power supply input. Voltage must be stable, because during operation, the current drawn by the SARA-R4/N4 series modules through the VCC pins can vary by several orders of magnitude, depending on the operating mode and state (as described in sections 1.5.1.2, 1.5.1.3, 1.5.1.4...
  • Page 22 SARA-R4/N4 series - System Integration Manual 1.5.1.1 VCC supply requirements Table 6 summarizes the requirements for the VCC modules supply. See section 2.2.1 for suggestions to correctly design a VCC supply circuit compliant with the requirements listed in Table ⚠ The supply circuit affects the RF compliance of the device integrating SARA-R4/N4 series modules with applicable required certification schemes as well as antenna circuit design.
  • Page 23 SARA-R4/N4 series - System Integration Manual Table 6: Summary of VCC modules supply requirements UBX-16029218 - R11 System description Page 23 of 157...
  • Page 24 SARA-R4/N4 series - System Integration Manual 1.5.1.2 VCC current consumption in LTE connected mode During an LTE connection, the SARA-R4/N4 series modules transmit and receive in half duplex mode. The current consumption depends on output RF power, which is always regulated by the network (the current base station) sending power control commands to the module.
  • Page 25 SARA-R4/N4 series - System Integration Manual slot/burst) with a periodicity of 4.615 ms (width of 1 frame = 8 slots/burst), that is, with a 1/8 duty cycle according to GSM TDMA (Time Division Multiple Access). If the module is transmitting in 2G single-slot mode in the 1800 or 1900 MHz bands, the current consumption figures are much lower than during transmission in the low bands, due to the 3GPP transmitter output power specifications.
  • Page 26 SARA-R4/N4 series - System Integration Manual current consumption. But according to GPRS specifications, the maximum transmitted RF power is reduced if more than one slot is used to transmit, so the maximum peak of current is not as high as it can be in the case of a GSM call.
  • Page 27 SARA-R4/N4 series - System Integration Manual 1.5.1.5 VCC current consumption in low power idle mode (low power enabled) The low power idle mode configuration is by default disabled, but it can be enabled using the AT+UPSV command (see the SARA-R4/N4 series AT Commands Manual [2]). When low power idle mode is enabled, the module automatically enters the low power mode whenever possible, but it must periodically monitor the paging channel of the current base station (paging block reception), in accordance to the 2G / LTE system requirements, even if connected mode is not enabled by...

  • Page 28: Generic Digital Interfaces Supply Output (V_Int)

    SARA-R4/N4 series - System Integration Manual 1.5.1.6 VCC current consumption in active mode (PSM / low power disabled) The active mode is the state where the module is switched on and ready to communicate with an external device by means of the application interfaces (as the USB or the UART serial interface). The module processor core is active, and the 19.2 MHz reference clock frequency is used.
  • Page 29 SARA-R4/N4 series - System Integration Manual The typical operating voltage is 1.8 V, whereas the current capability is specified in the SARA-R4/N4 series Data Sheet [1]. The V_INT voltage domain can be used in place of an external discrete regulator as a reference voltage rail for external components.

  • Page 30: System Function Interfaces

    SARA-R4/N4 series - System Integration Manual 1.6 System function interfaces 1.6.1 Module power-on When the SARA-R4/N4 series modules are in the not-powered mode (i.e. the VCC module supply is not applied), they can be switched on as follows: Rising edge on the VCC input pins to a valid voltage level, and then a low logic level needs to be set ...

  • Page 31: Module Power-Off

    SARA-R4/N4 series - System Integration Manual ☞ Before the switch-on of the generic digital interface supply (V_INT) of the module, no voltage driven by an external application should be applied to any generic digital interface of the module. ☞ Before the SARA-R4/N4 series module is fully ready to operate, the host application processor should not send any AT command over AT communication interfaces (USB, UART) of the module.
  • Page 32 SARA-R4/N4 series - System Integration Manual ⚠ Forcing a low level on the RESET_N input during SARA-R4/N4 series modules normal operations may lead to an unrecoverable faulty state! Figure 10 Figure 11 describe the SARA-R4/N4 series modules switch-off sequence started by means of the AT+CPWROFF command and by means of the PWR_ON input pin respectively, allowing storage of current parameter settings in the module’s non-volatile memory and a clean network detach, with the following phases:...

  • Page 33: Module Reset

    SARA-R4/N4 series - System Integration Manual ☞ The Internal Reset signal is not available on a module pin, but it is highly recommended to monitor the V_INT pin to sense the end of the switch-off sequence. ⚠ VCC supply can be removed only after V_INT goes low: an abrupt removal of the VCC supply during SARA-R4/N4 series modules normal operations may lead to an unrecoverable faulty state! ☞...
  • Page 34 SARA-R4/N4 series - System Integration Manual SARA-R4/ N4 Power M anagement Unit 1.8V Reset RESET_N Shut down Figure 12: RESET_N input description UBX-16029218 - R11 System description Page 34 of 157...

  • Page 35: Antenna Interface

    SARA-R4/N4 series - System Integration Manual 1.7 Antenna interface 1.7.1 Antenna RF interface (ANT) SARA-R4/N4 series modules provide an RF interface for connecting the external antenna. The ANT pin represents the primary RF input/output for transmission and reception of LTE RF signals. The ANT pin has a nominal characteristic impedance of 50 ...

  • Page 36: Antenna Detection Interface (Ant_Det)

    SARA-R4/N4 series - System Integration Manual Item Requirements Remarks Maximum Gain According to radiation exposure The power gain of an antenna is the radiation efficiency multiplied by limits the directivity: the gain describes how much power is transmitted in the direction of peak radiation to that of an isotropic source.

  • Page 37: Sim Detection Interface

    SARA-R4/N4 series - System Integration Manual The SIM driver supports the PPS (Protocol and Parameter Selection) procedure for baud-rate selection, according to the values determined by the SIM card or chip. 1.8.2 SIM detection interface The GPIO5 pin is configured as an external interrupt to detect the SIM card mechanical / physical presence. The pin is configured as input with an internal active pull-down enabled, and it can sense SIM card presence only if cleanly connected to the mechanical switch of a SIM card holder as described in section 2.5: Low logic level at GPIO5 input pin is recognized as SIM card not present...

  • Page 38: Data Communication Interfaces

    SARA-R4/N4 series - System Integration Manual 1.9 Data communication interfaces SARA-R4/N4 series modules provide the following serial communication interface: USB interface: Universal Serial Bus 2.0 compliant interface available for the communication with a host  application processor (AT commands, data, FW update by means of the FOAT feature), for FW update by means of the u-blox dedicated tool and for diagnostics.
  • Page 39 SARA-R4/N4 series - System Integration Manual SARA-R4/N4 series modules are designed to operate as cellular modems, i.e. as the data circuit- terminating equipment (DCE) according to the ITU-T V.24 Recommendation [5]. A host application processor connected to the module UART interface represents the data terminal equipment (DTE). ☞...

  • Page 40: Usb Interface

    SARA-R4/N4 series - System Integration Manual The configuration and the behavior of the UART signals after the boot sequence are described below: The module data output line (RXD) is set by default to the OFF state (high level) at UART initialization. ...
  • Page 41 SARA-R4/N4 series - System Integration Manual The module itself acts as a USB device and can be connected to a USB host such as a Personal Computer or an embedded application microprocessor equipped with compatible drivers. The USB_D+/USB_D- lines carry USB serial bus data and signaling according to the Universal Serial Bus Revision 2.0 specification [4], while the VUSB_DET input pin senses the VBUS USB supply presence (nominally 5 V at the source) to detect the host connection and enable the interface.

  • Page 42: Spi Interface

    SARA-R4/N4 series - System Integration Manual 1.9.3 SPI interface ☞ The SPI interface is not supported by “00”, “01”, “02” and “52” product versions: the SPI interface pins should not be driven by any external device. SARA-R4/N4 series modules include a Serial Peripheral Interface for communication with compatible external device.
  • Page 43 SARA-R4/N4 series - System Integration Manual SARA-R4/N4 series modules support VoLTE (Voice over LTE Cat M1 radio bearer) for providing audio services. SARA-R4/N4 series modules include an I S digital audio interface to transfer digital audio data to/from an external compatible audio device. The digital audio interface can be made available as alternative function, in mutually exclusive way, over the SPI interface pins (I2S_WA / SPI_MOSI, I2S_RXD / SPI_MISO, I2S_CLK / SPI_CLK, I2S_TXD / SPI_CS).

  • Page 44: General Purpose Input/Output

    SARA-R4/N4 series - System Integration Manual 1.11 General Purpose Input/Output SARA-R4/N4 series modules include six pins (GPIO1-GPIO6) which can be configured as General Purpose Input/Output or to provide custom functions via u-blox AT commands (for more details see the SARA- R4/N4 series AT Commands Manual [2], +UGPIOC, +UGPIOR, +UGPIOW AT commands), as summarized Table Function...

  • Page 45: System Features

    SARA-R4/N4 series - System Integration Manual 1.13 System features 1.13.1 Network indication GPIOs can be configured by the AT command to indicate network status (for further details see section 1.11 and the SARA-R4/N4 series AT Commands Manual [2]): No service (no network coverage or not registered) ...

  • Page 46: Http

    SARA-R4/N4 series - System Integration Manual FTP files can also be transferred using FTP Direct Link: FTP download: data coming from the FTP server is forwarded to the host processor via USB / UART  serial interfaces (for FTP without Direct Link mode the data is always stored in the module’s flash file system) FTP upload: data coming from the host processor via USB / UART serial interface is forwarded to the ...

  • Page 47: Power Saving

    SARA-R4/N4 series - System Integration Manual 1.13.9 Power saving 1.13.9.1 Guidelines to optimize power consumption The LTE Cat M1 / NB1 technology is mainly intended for applications that only require a small amount of data exchange per day (i.e. a few bytes in uplink and downlink per day). Depending on the application type, the battery may be required to last for a few years.
  • Page 48 SARA-R4/N4 series - System Integration Manual For the definition and the description of the SARA-R4/N4 series operating modes, including the events forcing transitions between the different operating modes, see section 1.4. The SARA-R4/N4 series modules achieve the low power deep sleep mode by powering down all the Hardware components with the exception of the 32 kHz reference internally generated.
  • Page 49 SARA-R4/N4 series - System Integration Manual Current Connected mode: Data Tx / Rx Time PSM low power deep sleep mode Active mode (periodic update timer) (active timer) Figure 14: Description of the PSM timing 1.13.9.4 Timers and AT interaction The SARA-R4/N4 series modules go into low power deep sleep mode and enter the Power Saving Mode (PSM) only after the 6 s “AT Inactivity Timer”...

  • Page 50: Normal Operation

    SARA-R4/N4 series - System Integration Manual 1.13.9.7 Normal operation The Host Application can force the SARA-R4/N4 series module to transition from PSM low power deep sleep mode to Active mode by using the Power-Up procedure specified in section 1.6.1. ☞ Be aware that when the host application transitions from low power deep sleep mode to active mode, it will cause the SARA-R4/N4 series module to consume the same amount of power as in active mode, thereby shortening the battery life of the host application.

  • Page 51: Design-In

    SARA-R4/N4 series - System Integration Manual Design-in 2.1 Overview For an optimal integration of the SARA-R4/N4 series modules in the final application board, follow the design guidelines stated in this section. Every application circuit must be suitably designed to guarantee the correct functionality of the relative interface, but a number of points require particular attention during the design of the application device.
  • Page 52 SARA-R4/N4 series - System Integration Manual 7. Other supplies: V_INT generic digital interfaces supply. Accurate design is required to guarantee correct functionality. Follow the suggestions provided in the corresponding section 2.2.2 for the schematic and layout design. ☞ It is recommended to follow the specific design guidelines provided by each manufacturer of any external part selected for the application board integrating the u-blox cellular modules.

  • Page 53: Supply Interfaces

    SARA-R4/N4 series - System Integration Manual 2.2 Supply interfaces 2.2.1 Module supply (VCC) 2.2.1.1 General guidelines for VCC supply circuit selection and design All the available VCC pins have to be connected to the external supply minimizing the power loss due to series resistance.
  • Page 54 SARA-R4/N4 series - System Integration Manual side, linear regulators are not recommended for high voltage step-down as they dissipate a considerable amount of energy in thermal power. See section 2.2.1.3 for design-in. If SARA-R4/N4 series modules are deployed in a mobile unit where no permanent primary supply source is available, then a battery will be required to provide VCC.
  • Page 55 SARA-R4/N4 series - System Integration Manual Power capability: the switching regulator with its output circuit must be capable of providing a voltage  value to the VCC pins within the specified operating range and must be capable of delivering to VCC pins the maximum current consumption occurring during transmissions at the maximum power, as specified in the SARA-R4/N4 series Data Sheet [1].
  • Page 56 SARA-R4/N4 series - System Integration Manual 10 nF Capacitor Ceramic X7R 0402 10% 16 V Generic manufacturer 470 nF Capacitor Ceramic X7R 0603 10% 25 V Generic manufacturer 100 µF Capacitor Tantalum B_SIZE 20% 6.3V 15m T520B107M006ATE015 – Kemet 100 nF Capacitor Ceramic X7R 16 V GRM155R71C104KA01 - Murata 10 nF Capacitor Ceramic X7R 16 V GRM155R71C103KA01 - Murata...
  • Page 57 SARA-R4/N4 series - System Integration Manual 10 nF Capacitor Ceramic X7R 16 V Generic manufacturer 22 nF Capacitor Ceramic X7R 16 V Generic manufacturer 22 µF Capacitor Ceramic X5R 25 V Generic manufacturer 22 µF Capacitor Ceramic X5R 25 V Generic manufacturer 100 nF Capacitor Ceramic X7R 16 V GRM155R71C104KA01 - Murata...
  • Page 58 SARA-R4/N4 series - System Integration Manual Figure 18 and the components listed in Table 11 show an example of a low cost power supply circuit suitable for all the SARA-R4/N4 series modules, where the module VCC is supplied by a step-down switching regulator capable of delivering the highest peak / pulse current specified for the 2G use-case, transforming a 12 V supply input.
  • Page 59 SARA-R4/N4 series - System Integration Manual UBX-16029218 - R11 Design-in Page 59 of 157...
  • Page 60 SARA-R4/N4 series - System Integration Manual 2.2.1.3 Guidelines for VCC supply circuit design using low drop-out linear regulator The use of a linear regulator is suggested when the difference from the available supply rail source and the VCC value is low. The linear regulators provide high efficiency when transforming a 5 VDC supply to a voltage value within the module VCC normal operating range.
  • Page 61 SARA-R4/N4 series - System Integration Manual 10 nF Capacitor Ceramic X7R 16 V GRM155R71C103KA01 - Murata 68 pF Capacitor Ceramic C0G 0402 5% 50 V GRM1555C1E680JA01 - Murata 15 pF Capacitor Ceramic C0G 0402 5% 50 V GRM1555C1E150JA01 - Murata 9.1 k...
  • Page 62 SARA-R4/N4 series - System Integration Manual LDO Linear Regulator 1.0 A AP7361 – Diodes Incorporated Table 13: Components for high reliability VCC supply circuit for SARA-R404M /-R410M /-N410, using an LDO linear regulator ☞ See the section 2.2.1.10, and in particular Figure 27 Table 19, for the parts recommended to be...
  • Page 63 SARA-R4/N4 series - System Integration Manual ☞ See the section 2.2.1.10, and in particular Figure 27 Table 19, for the parts recommended to be provided if the application device integrates an internal antenna. UBX-16029218 - R11 Design-in Page 63 of 157...
  • Page 64 SARA-R4/N4 series - System Integration Manual 2.2.1.4 Guidelines for VCC supply circuit design using a rechargeable battery Rechargeable Li-Ion or Li-Pol batteries connected to the VCC pins should meet the following prerequisites to comply with the module VCC requirements summarized in Table Maximum pulse and DC discharge current: the rechargeable Li-Ion battery with its related output ...
  • Page 65 SARA-R4/N4 series - System Integration Manual Constant voltage: when the battery voltage reaches the regulated output voltage, the Battery Charger  IC starts to reduce the current until the charge termination is done. The charging process ends when the charging current reaches the value configured by an external resistor or when the charging timer reaches the factory set value.
  • Page 66 SARA-R4/N4 series - System Integration Manual 2.2.1.7 Guidelines for external charging and power path management circuit Application devices where both a permanent primary supply / charging source (e.g. ~12 V) and a rechargeable back-up battery (e.g. 3.7 V Li-Pol) are available at the same time as a possible supply source, should implement a suitable charger / regulator with integrated power path management function to supply the module and the whole device while simultaneously and independently charging the battery.
  • Page 67 SARA-R4/N4 series - System Integration Manual The MP2617H IC normally provides a supply voltage to the module regulated from the external main primary source allowing immediate system operation even under missing or deeply discharged battery: the integrated switching step-down regulator is capable to provide up to 3 A output current with low output ripple and fixed 1.6 MHz switching frequency in PWM mode operation.
  • Page 68 SARA-R4/N4 series - System Integration Manual Li-Ion/Li-Polym er Bat t ery Charger / Regulat or wit h Power Pat h M anagm ent SARA-R4/ N4 Prim ary Source VLIM SYSFB Li-Ion/Li-Pol Bat t ery Pack ILIM θ ISET TM R C7 C8 AGND PGND...
  • Page 69 SARA-R4/N4 series - System Integration Manual 2.2.1.8 Guidelines for particular VCC supply circuit design for SARA-R412M SARA-R412M modules have separate supply inputs over the VCC pins (see Figure VCC pins #52 and #53: supply input for the internal RF Power Amplifier, demanding most of the total ...
  • Page 70 SARA-R4/N4 series - System Integration Manual ☞ See the section 2.2.1.10, and in particular Figure 27 Table 19, for the parts recommended to be provided if the application device integrates an internal antenna. UBX-16029218 - R11 Design-in Page 70 of 157...
  • Page 71 SARA-R4/N4 series - System Integration Manual 2.2.1.9 Guidelines for removing VCC supply Removing the VCC power can be useful to minimize the current consumption when the SARA-R4/N4 series modules are switched off or when the modules are in deep sleep Power Saving Mode. In applications in which the module is paired to a host application processor equipped with a RTC, the module can execute standard PSM procedures, store NAS protocol context in non-volatile memory, and rely on the host application processor to run its RTC and to trigger wake-up upon need.
  • Page 72 SARA-R4/N4 series - System Integration Manual ☞ It is highly recommended to avoid an abrupt removal of the VCC supply during SARA-R4/N4 series normal operations: the VCC supply can be removed only after V_INT goes low, indicating that the module has entered Deep-Sleep Power Saving Mode or Power-Off Mode. ☞...
  • Page 73 SARA-R4/N4 series - System Integration Manual SARA-R4/ N4 Capacit or wit h SRF ~900 M Hz Ferrit e Bead Capacit or wit h f or GHz noise SRF ~1900 M Hz GND plane SARA C3 C4 VCC line Figure 27: Suggested design to reduce ripple / noise on VCC, highly recommended when using an integrated antenna Reference Description Part Number - Manufacturer...
  • Page 74 SARA-R4/N4 series - System Integration Manual VCC connection must be routed as far as possible from the antenna, in particular if embedded in the  application device: see Figure 28 Coupling between VCC and digital lines, especially USB, must be avoided. ...

  • Page 75: Generic Digital Interfaces Supply Output (V_Int)

    SARA-R4/N4 series - System Integration Manual It is recommended to implement one layer of the application board as ground plane as wide as possible  If the application board is a multilayer PCB, then all the board layers should be filled with GND plane ...

  • Page 76: System Functions Interfaces

    SARA-R4/N4 series - System Integration Manual 2.3 System functions interfaces 2.3.1 Module power-on (PWR_ON) 2.3.1.1 Guidelines for PWR_ON circuit design SARA-R4/N4 series PWR_ON input is equipped with an internal active pull-up resistor; an external pull-up resistor is not required and should not be provided. If connecting the PWR_ON input to a push button, the pin will be externally accessible on the application device.
  • Page 77 SARA-R4/N4 series - System Integration Manual 2.3.1.2 Guidelines for PWR_ON layout design The power-on circuit (PWR_ON) requires careful layout since it is the sensitive input available to switch on and switch off the SARA-R4/N4 series modules. It is required to ensure that the voltage level is well defined during operation and no transient noise is coupled on this line, otherwise the module might detect a spurious power-on request.

  • Page 78: Module Reset (Reset_N)

    SARA-R4/N4 series - System Integration Manual 2.3.2 Module reset (RESET_N) 2.3.2.1 Guidelines for RESET_N circuit design SARA-R4/N4 series RESET_N is equipped with an internal pull-up; an external pull-up resistor is not required. If connecting the RESET_N input to a push button, the pin will be externally accessible on the application device.

  • Page 79: Antenna Interface

    SARA-R4/N4 series - System Integration Manual 2.4 Antenna interface SARA-R4/N4 series modules provide an RF interface for connecting the external antenna: the ANT pin represents the RF input/output for RF signals transmission and reception. The ANT pin has a nominal characteristic impedance of 50  and must be connected to the physical antenna through a 50 ...
  • Page 80 SARA-R4/N4 series - System Integration Manual It is recommended to select a custom antenna designed by an antennas’ manufacturer if the required ground plane dimensions are very small (e.g. less than 6.5 cm long and 4 cm wide). The antenna design process should begin at the start of the whole product design process It is highly recommended to strictly follow the detailed and specific guidelines provided by the antenna manufacturer regarding correct installation and deployment of the antenna system,...
  • Page 81 SARA-R4/N4 series - System Integration Manual GND clearance GND clearance on t op layer on buried layer very close t o t op layer around ANT pad below ANT pad M in. 250 µm M in. 40 0 µm Figure 31: GND keep-out area on top layer around ANT pad and on very close buried layer below ANT pad Guidelines for RF transmission line design Any RF transmission line, such as the ones from the ANT pad up to the related antenna connector or up to the related internal antenna pad, must be designed so that the characteristic impedance is as close as...
  • Page 82 SARA-R4/N4 series - System Integration Manual 40 0 µm 120 0 µm 40 0 µm L1 Copper 35 µm FR-4 dielect ric 1510 µm 35 µm L2 Copper Figure 33: Example of 50  coplanar waveguide transmission line design for the described 2-layer board layup If the two examples do not match the application PCB stack-up, then the 50 ...
  • Page 83 SARA-R4/N4 series - System Integration Manual Ensure solid metal connection of the adjacent metal layer on the PCB stack-up to main ground layer,  providing enough vias on the adjacent metal layer, as described in Figure Route RF transmission lines far from any noise source (as switching supplies and digital lines) and from ...
  • Page 84 SARA-R4/N4 series - System Integration Manual However, real antennas do not have a perfect 50  load on all the supported frequency bands. So to reduce as much as possible any performance degradation due to antenna mismatching, the RF termination must provide optimal return loss (or VSWR) figures over all the operating frequencies, as summarized in Table If an external antenna is used, the antenna connector represents the RF termination on the PCB:...
  • Page 85 SARA-R4/N4 series - System Integration Manual UBX-16029218 - R11 Design-in Page 85 of 157...
  • Page 86 SARA-R4/N4 series - System Integration Manual Examples of antennas Table 22 lists some examples of possible internal on-board surface-mount antennas. Manufacturer Part Number Product Name Description Taoglas PA.710.A Warrior GSM / WCDMA / LTE SMD Antenna 698..960 MHz, 1710..2170 MHz, 2300..2400 MHz, 2490..2690 MHz 40.0 x 6.0 x 5.0 mm Taoglas PCS.06.A...
  • Page 87 SARA-R4/N4 series - System Integration Manual Table 23 lists some examples of possible internal off-board PCB-type antennas with cable and connector. Manufacturer Part Number Product Name Description Taoglas FXUB63.07.0150C GSM / WCDMA / LTE PCB Antenna with cable and U.FL 698..960 MHz, 1575.42 MHz, 1710..2170 MHz, 2400..2690 MHz 96.0 x 21.0 mm Taoglas...

  • Page 88: Antenna Detection Interface (Ant_Det)

    SARA-R4/N4 series - System Integration Manual Manufacturer Part Number Product Name Description 86 x Ø 199 mm Laird Tech. OC69271-FNM GSM / WCDMA / LTE pole-mount antenna with N-type(M) 698..960 MHz, 1710..2690 MHz 248 x Ø 24.5 mm Pulse WA700/2700SMA GSM / WCDMA / LTE clip-mount MIMO antenna with cables and SMA(M) Electronics 698..960 MHz,1710..2700 MHz...
  • Page 89 SARA-R4/N4 series - System Integration Manual 15 k Resistor for Diagnostics Various Manufacturers Table 25: Suggested parts for antenna detection circuit on application PCB and diagnostic circuit on antennas assembly The antenna detection circuit and diagnostic circuit suggested in Figure 35 Table 25 are here explained: When antenna detection is forced by the +UANTR AT command, the ANT_DET pin generates a DC...
  • Page 90 SARA-R4/N4 series - System Integration Manual Reported values close to the used diagnostic resistor nominal value (i.e. values from 13 k to 17 k if  a 15 k diagnostic resistor is used) indicate that the antenna is correctly connected. Values close to the measurement range maximum limit (approximately 50 k) or an open-circuit ...
  • Page 91 SARA-R4/N4 series - System Integration Manual 2.4.2.2 Guidelines for ANT_DET layout design Figure 36 describes the recommended layout for the antenna detection circuit to be provided on the application board to achieve antenna detection functionality, implementing the recommended schematic described in the previous Figure 35 Table The ANT pin must be connected to the antenna connector by means of a 50 ...

  • Page 92: Sim Interface

    SARA-R4/N4 series - System Integration Manual 2.5 SIM interface 2.5.1 Guidelines for SIM circuit design 2.5.1.1 Guidelines for SIM cards, SIM connectors and SIM chips selection The ISO/IEC 7816, the ETSI TS 102 221 and the ETSI TS 102 671 specifications define the physical, electrical and functional characteristics of Universal Integrated Circuit Cards (UICC), which contains the Subscriber Identification Module (SIM) integrated circuit that securely stores all the information needed to identify and authenticate subscribers over the LTE network.
  • Page 93 SARA-R4/N4 series - System Integration Manual A solderable SIM chip has 8 contacts and can also include the auxiliary contacts C4 and C8 for other uses, but only 6 contacts are required and must be connected to the module SIM card interface as described above.
  • Page 94 SARA-R4/N4 series - System Integration Manual SIM CARD SARA-R4/ N4 HOLDER VPP (C6) VSIM VCC (C1) SIM _IO IO (C7) SIM _CLK CLK (C3) SIM _RST RST (C2) SIM Card Bot t om View GND (C5) (cont act s side) C2 C3 D1 D2 D3 D4 Figure 37: Application circuits for the connection to a single removable SIM card, with SIM detection not implemented...
  • Page 95 SARA-R4/N4 series - System Integration Manual 2.5.1.3 Guidelines for single SIM chip connection A solderable SIM chip (M2M UICC Form Factor) must be connected the SIM card interface of the SARA- R4/N4 series modules as described in Figure Follow these guidelines to connect the module to a solderable SIM chip without SIM presence detection: Connect the UICC / SIM contacts C1 (VCC) to the VSIM pin of the module.
  • Page 96 SARA-R4/N4 series - System Integration Manual Follow these guidelines connecting the module to a SIM connector implementing SIM presence detection: Connect the UICC / SIM contacts C1 (VCC) to the VSIM pin of the module.  Connect the UICC / SIM contact C7 (I/O) to the SIM_IO pin of the module. ...

  • Page 97: Guidelines For Sim Layout Design

    SARA-R4/N4 series - System Integration Manual 100 nF Capacitor Ceramic X7R 0402 10% 16 V GRM155R71C104KA01 - Murata D1 – D6 Very Low Capacitance ESD Protection PESD0402-140 - Tyco Electronics 1 k Resistor 0402 5% 0.1 W RC0402JR-071KL - Yageo Phycomp 470 k...

  • Page 98: Data Communication Interfaces

    SARA-R4/N4 series - System Integration Manual 2.6 Data communication interfaces 2.6.1 UART interface 2.6.1.1 Guidelines for UART circuit design Providing the full RS-232 functionality (using the complete V.24 link) If RS-232 compatible signal levels are needed, two different external voltage translators can be used to provide full RS-232 (9 lines) functionality: e.g.
  • Page 99 SARA-R4/N4 series - System Integration Manual Reference Description Part Number - Manufacturer C1, C2, C3, C4 100 nF Capacitor Ceramic X7R 0402 10% 16 V GRM155R61A104KA01 - Murata U1, U2 Unidirectional Voltage Translator SN74AVC4T774 - Texas Instruments Table 29: Component for UART application circuit with complete V.24 link in DTE/DCE serial communication (3.0 V DTE) Providing the TXD, RXD, RTS, CTS and DTR lines only If the functionality of the DSR, DCD and RI lines is not required, or the lines are not available: Leave DSR, DCD and RI lines of the module floating, with a test-point on DCD...
  • Page 100 SARA-R4/N4 series - System Integration Manual Applicat ion Processor SARA-R4/ N4 (3.0 V DTE) (1.8 V DCE) Unidirect ional Volt age Translat or V_INT VCCA VCCB DIR1 DIR3 0 Ω 0 Ω 0 Ω 0 Ω DIR2 DIR4 Unidirect ional Volt age Translat or VCCA VCCB...
  • Page 101 SARA-R4/N4 series - System Integration Manual Applicat ion Processor SARA-R4/ N4 (1.8V DTE) (1.8V DCE) 0Ω 0Ω 0Ω 0Ω Figure 44: UART interface application circuit with partial V.24 link (5-wire) in the DTE/DCE serial communication (1.8V DTE) If a 3.0 V Application Processor (DTE) is used, then it is recommended to connect the 1.8 V UART interface of the module (DCE) by means of appropriate unidirectional voltage translators using the module V_INT output as 1.8 V supply for the voltage translators on the module side, as in Figure...
  • Page 102 SARA-R4/N4 series - System Integration Manual Providing the TXD and RXD lines only If the functionality of the CTS, RTS, DSR, DCD, RI and DTR lines is not required in the application, or the lines are not available, then: Connect the module RTS input line to GND or to the CTS output line of the module, since the module ...
  • Page 103 SARA-R4/N4 series - System Integration Manual Applicat ion Processor SARA-R4/ N4 (3.0 V DTE) (1.8V DCE) Unidirect ional Volt age Translat or VCCA VCCB V_INT DIR1 0 Ω 0 Ω DIR2 0 Ω Figure 47: UART interface application circuit with a partial V.24 link (3-wire) in DTE/DCE serial communication (3.0 V DTE) Reference Description Part Number - Manufacturer...
  • Page 104 SARA-R4/N4 series - System Integration Manual Additional considerations If a 3.0 V Application Processor (DTE) is used, the voltage scaling from any 3.0 V output of the DTE to the corresponding 1.8 V input of the module (DCE) can be implemented as an alternative low-cost solution, by means of an appropriate voltage divider.

  • Page 105: Usb Interface

    SARA-R4/N4 series - System Integration Manual 2.6.2 USB interface 2.6.2.1 Guidelines for USB circuit design The USB_D+ and USB_D- lines carry the USB serial data and signaling. The lines are used in single-ended mode for full speed signaling handshake, as well as in differential mode for high speed signaling and data transfer.
  • Page 106 SARA-R4/N4 series - System Integration Manual ☞ If the USB interface is enabled, the module does not enter the low power deep sleep mode: the external USB VBUS supply voltage needs to be removed from the VUSB_DET input of the module to let it enter the Power Saving Mode defined in 3GPP Rel.13.

  • Page 107: Spi Interface

    SARA-R4/N4 series - System Integration Manual 410 µm 740 µm 410 µm 740 µm 410 µm 35 µm L1 Copper 1510 µm FR-4 dielect ric L2 Copper 35 µm Figure 50: Example of USB line design, with Z close to 90  and Z close to 30 , for the described 2-layer board layup 2.6.3 SPI interface 2.6.3.1 Guidelines for SPI circuit design...
  • Page 108 SARA-R4/N4 series - System Integration Manual ☞ Capacitance and series resistance must be limited on the bus to match the I C specifications (1.0 µs is the maximum allowed rise time on the SCL and SDA lines): route connections as short as possible. ☞...
  • Page 109 SARA-R4/N4 series - System Integration Manual Connection with u-blox 1.8 V GNSS receivers Figure 51 shows an application circuit for connecting the cellular module to a u-blox 1.8 V GNSS receiver: The SDA and SCL pins of the cellular module are directly connected to the related pins of the u-blox ...
  • Page 110 SARA-R4/N4 series - System Integration Manual the GNSS 3.0 V supply can be ramped up before the V_INT 1.8 V cellular supply). External pull-up resistors are not needed on the cellular module side, as they are already integrated in the cellular module.

  • Page 111: Audio

    SARA-R4/N4 series - System Integration Manual 2.6.5.2 Guidelines for DDC (I C) layout design The DDC (I C) serial interface requires the same consideration regarding electro-magnetic interference as any other digital interface. Keep the traces short and avoid coupling with RF line or sensitive analog inputs, since the signals can cause the radiation of some harmonics of the digital data frequency.

  • Page 112: Guidelines For General Purpose Input/Output Layout Design

    SARA-R4/N4 series - System Integration Manual ☞ Use transistors with at least an integrated resistor in the base pin or otherwise put a 10 k resistor on the board in series to the GPIO of SARA-R4/N4 series modules. ☞ Do not apply voltage to any GPIO of the module before the switch-on of the GPIOs supply (V_INT), to avoid latch-up of circuits and allow a clean module boot.

  • Page 113: Reserved Pins (Rsvd)

    SARA-R4/N4 series - System Integration Manual 2.9 Reserved pins (RSVD) SARA-R4/N4 series modules have pins reserved for future use, marked as RSVD. All the RSVD pins are to be left unconnected on the application board, except for the RSVD pin number 33 that can be externally connected to ground.

  • Page 114: Module Footprint And Paste Mask

    SARA-R4/N4 series - System Integration Manual 2.11 Module footprint and paste mask Figure 54 Table 37 describe the suggested footprint (i.e. copper mask) and paste mask layout for SARA modules: the proposed land pattern layout reflects the modules’ pins layout, while the proposed stencil apertures layout is slightly different (see the F’’, H’’, I’’, J’’, O’’...

  • Page 115: Thermal Guidelines

    SARA-R4/N4 series - System Integration Manual F’’ 1.00 mm J’’ 0.35 mm O’’ 1.05 mm Table 37: SARA-R4/N4 series modules suggested footprint and paste mask dimensions ☞ These are recommendations only and not specifications. The exact copper, solder and paste mask geometries, distances, stencil thicknesses and solder paste volumes must be adapted to the specific production processes (e.g.

  • Page 116: Schematic For Sara-R4/N4 Series Module Integration

    SARA-R4/N4 series - System Integration Manual Optimize antenna return loss, to optimize overall electrical performance of the module including a  decrease of module thermal power. Optimize the thermal design of any high-power components included in the application, such as linear ...
  • Page 117 SARA-R4/N4 series - System Integration Manual SARA-R4/ N4 Ext ernal Connect or 15pF 33pF ant enna 39nH 68nH 100uF 100nF 10nF 68pF 15pF ANT_DE 27pF SIM Card Applicat ion V_INT Holder Processor PW R_ON V_INT SW 1 Open drain GPIO5 SW 2 out put VSIM...

  • Page 118: Design-In Checklist

    SARA-R4/N4 series - System Integration Manual 2.14 Design-in checklist This section provides a design-in checklist. 2.14.1 Schematic checklist The following are the most important points for a simple schematic check: DC supply must provide a nominal voltage at VCC pin within the operating range limits. ...

  • Page 119: Antenna Checklist

    SARA-R4/N4 series - System Integration Manual Check 50  nominal characteristic impedance of the RF transmission line connected to the ANT  port (antenna RF interface). Ensure no coupling occurs between the RF interface and noisy or sensitive signals (SIM signals, ...

  • Page 120: Handling And Soldering

    SARA-R4/N4 series - System Integration Manual Handling and soldering ☞ No natural rubbers, no hygroscopic materials or materials containing asbestos are employed. 3.1 Packaging, shipping, storage and moisture preconditioning For information pertaining to SARA-R4/N4 series reels / tapes, Moisture Sensitivity levels (MSD), shipment and storage information, as well as drying for preconditioning, see the SARA-R4/N4 series Data Sheet and the u-blox Package Information Guide [15].
  • Page 121 SARA-R4/N4 series - System Integration Manual To prevent electrostatic discharge through the RF pin, do not touch any exposed antenna area. If there  is any risk that such exposed antenna area is touched in a non-ESD protected work area, implement adequate ESD protection measures in the design.

  • Page 122: Soldering

    SARA-R4/N4 series - System Integration Manual 3.3 Soldering 3.3.1 Soldering paste "No Clean" soldering paste is strongly recommended for SARA-R4/N4 series modules, as it does not require cleaning after the soldering process has taken place. The paste listed in the example below meets these criteria.
  • Page 123 SARA-R4/N4 series - System Integration Manual Time: 60 – 120 s If the preheat is insufficient, rather large solder balls tend to be  generated. Conversely, if performed excessively, fine balls and large balls will be generated in clusters. End Temperature: +150 - +200 °C If the temperature is too low, non-melting tends to be caused ...

  • Page 124: Optical Inspection

    SARA-R4/N4 series - System Integration Manual ☞ The modules must not be soldered with a damp heat process. 3.3.3 Optical inspection After soldering the module, inspect it optically to verify that it is correctly aligned and centered. 3.3.4 Cleaning Cleaning the modules is not recommended. Residues underneath the modules cannot be easily removed with a washing process.

  • Page 125: Hand Soldering

    SARA-R4/N4 series - System Integration Manual ☞ u-blox gives no warranty against damages to the SARA-R4/N4 series modules caused by performing more than a total of two soldering processes (one reflow soldering process to mount the SARA-R4/N4 series module, plus one wave soldering process to mount other THT parts on the application board). 3.3.7 Hand soldering Hand soldering is not recommended.

  • Page 126: Use Of Ultrasonic Processes

    SARA-R4/N4 series - System Integration Manual 3.3.12 Use of ultrasonic processes The cellular modules contain components which are sensitive to ultrasonic waves. Use of any ultrasonic processes (cleaning, welding etc.) may cause damage to the module. ☞ u-blox gives no warranty against damages to the cellular modules caused by any ultrasonic processes. UBX-16029218 - R11 Handling and soldering Page 126 of 157...

  • Page 127: Approvals

    SARA-R4/N4 series - System Integration Manual Approvals 4.1 Product certification approval overview Product certification approval is the process of certifying that a product has passed all tests and criteria required by specifications, typically called “certification schemes”, that can be divided into: Regulatory certifications ...
  • Page 128 SARA-R4/N4 series - System Integration Manual Verizon LTE Cat M1 Band LTE Cat M1 Bands 4, 13 AT&T LTE Cat M1 Bands LTE Cat M1 Bands LTE Cat M1 Bands LTE Cat M1 Bands 2, 4, 5, 12 2, 4, 5, 12 2, 4, 5, 12 2, 4, 5, 12 T-Mobile...
  • Page 129 SARA-R4/N4 series - System Integration Manual TS 36.521-2 [12] and 3GPP TS 36.523-2 [13], is a statement of the implemented and supported capabilities and options of a device. ☞ The PICS document of the application device integrating SARA-R4/N4 series modules must be updated from the module PICS statement if any feature stated as supported by the module in its PICS document is not implemented or disabled in the application device.

  • Page 130: Us Federal Communications Commission Notice

    SARA-R4/N4 series - System Integration Manual 4.2 US Federal Communications Commission notice United States Federal Communications Commission (FCC) IDs: u-blox SARA-R404M cellular modules: XPY2AGQN1NNN  u-blox SARA-R410M and SARA-N410 cellular modules: XPY2AGQN4NNN  u-blox SARA-R412M cellular modules: XPYUBX18ZO01  4.2.1 Safety warnings review the structure Equipment for building-in.

  • Page 131: Modifications

    SARA-R4/N4 series - System Integration Manual 3.66 dBi in 700 MHz, i.e. LTE FDD-12 band 3.94 dBi in 750 MHz, i.e. LTE FDD-13 band 4.41 dBi in 850 MHz, i.e. LTE FDD-5 band 6.75 dBi in 1700 MHz, i.e. LTE FDD-4 band 7.00 dBi in 1900 MHz, i.e.

  • Page 132: Innovation, Science, Economic Development Canada Notice

    SARA-R4/N4 series - System Integration Manual off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consultant the dealer or an experienced radio/TV technician for help...

  • Page 133: Modifications

    SARA-R4/N4 series - System Integration Manual 3.66 dBi in 700 MHz, i.e. LTE FDD-12 band 3.94 dBi in 750 MHz, i.e. LTE FDD-13 band 4.41 dBi in 850 MHz, i.e. LTE FDD-5 band 6.75 dBi in 1700 MHz, i.e. LTE FDD-4 band 7.00 dBi in 1900 MHz, i.e.
  • Page 134 SARA-R4/N4 series - System Integration Manual This device has been evaluated and shown compliant with the IC RF Exposure limits under mobile exposure conditions (antennas are greater than 20 cm from a person's body). This device has been certified for use in Canada. Status of the listing in the Industry Canada’s REL (Radio Equipment List) can be found at the following web address: http://www.ic.gc.ca/app/sitt/reltel/srch/nwRdSrch.do?lang=eng Additional Canadian information on RF exposure also can be found at the following web address:...
  • Page 135 SARA-R4/N4 series - System Integration Manual ⚠ IMPORTANT: les fabricants d'applications portables contenant les modules de la SARA-R4/N4 series doivent faire certifier leur produit final et déposer directement leur candidature pour une certification FCC ainsi que pour un certificat ISDE Canada délivré par l'organisme chargé de ce type d'appareil portable.

  • Page 136: European Conformance Ce Mark

    SARA-R4/N4 series - System Integration Manual European Conformance CE mark SARA-R410M-02B and SARA-R412M-02B module product versions have been evaluated against the essential requirements of the Radio Equipment Directive 2014/53/EU. In order to satisfy the essential requirements of the 2014/53/EU RED, the modules are compliant with the following standards: Radio Spectrum Efficiency (Article 3.2): ...

  • Page 137: Taiwanese National Communication Commission

    SARA-R4/N4 series - System Integration Manual 4.5 Taiwanese National Communication Commission The SARA-R410M-02B product version has the applicable regulatory approval for Taiwan (NCC) SARA-R410M-02B modules NCC ID: CCAA18NB0010T3  CCAA18NB0010T3 UBX-16029218 - R11 Approvals Page 137 of 157...

  • Page 138: Product Testing

    SARA-R4/N4 series - System Integration Manual Product testing 5.1 u-blox in-series production test u-blox focuses on high quality for its products. All units produced are fully tested automatically on the production line. Stringent quality control processes have been implemented in the production line. Defective units are analyzed in detail to improve production quality.

  • Page 139: Test Parameters For Oem Manufacturers

    SARA-R4/N4 series - System Integration Manual 5.2 Test parameters for OEM manufacturers Because of the testing done by u-blox (with 100% coverage), an OEM manufacturer does not need to repeat the firmware tests or measurements of the module RF performance or tests over analog and digital interfaces in their production test.

  • Page 140: Rf Functional Tests

    SARA-R4/N4 series - System Integration Manual 5.2.2 RF functional tests The overall RF functional test of the device including the antenna can be performed with basic instruments such as a spectrum analyzer (or an RF power meter) and a signal generator with the assistance of the AT+UTEST command over the AT command user interface.
  • Page 141 SARA-R4/N4 series - System Integration Manual Cellular Wideband ant enna ant enna Applicat ion SARA-R4/ N4 Processor Spect rum Analyzer com m ands Power M et er Applicat ion Board Cellular Wideband ant enna ant enna Applicat ion SARA-R4/ N4 Processor com m ands Signal...

  • Page 142: Appendix

    SARA-R4/N4 series - System Integration Manual Appendix A Migration between SARA modules A.1 Overview SARA-G3 2G modules, SARA-U2 3G / 2G modules, SARA-R4/N4 LTE Cat M1/NB1 / 2G modules and SARA- N2 LTE Cat NB1 modules have exactly the same u-blox SARA form factor (26.0 x 16.0 mm, LGA 96-pin), with compatible pin assignments, as in Figure 59.
  • Page 143 SARA-R4/N4 series - System Integration Manual Table 39: Summary of SARA-G3, SARA-U2, SARA-R4/N4 and SARA-N2 modules interfaces SARA modules are also form-factor compatible with the u-blox LISA, LARA and TOBY cellular module families: although each has a different form factor, the footprints for the TOBY, LISA, SARA and LARA modules have been developed to ensure layout compatibility.

  • Page 144: Pin-Out Comparison

    SARA-R4/N4 series - System Integration Manual A.2 Pin-out comparison Table 40 shows a pin-out comparison between the SARA-G3, SARA-U2, SARA-R4/N4, and SARA-N2 modules. SARA-G3 SARA-U2 SARA-R4 SARA-N2 Pin Name Description Pin Name Description Pin Name Description Pin Name Description Remarks for migration Ground Ground Ground...
  • Page 145 SARA-R4/N4 series - System Integration Manual SARA-G3 SARA-U2 SARA-R4 SARA-N2 Pin Name Description Pin Name Description Pin Name Description Pin Name Description Remarks for migration UART RTS Input UART RTS Input UART RTS Input UART RTS Input Diverse level (V_INT vs VCC); Diverse internal pull-up value;...
  • Page 146 SARA-R4/N4 series - System Integration Manual SARA-G3 SARA-U2 SARA-R4 SARA-N2 Pin Name Description Pin Name Description Pin Name Description Pin Name Description Remarks for migration GPIO1 / RSVD GPIO (G340/G350) GPIO1 GPIO GPIO1 GPIO GPIO1 GPIO Diverse driver strength Reserved (G300/G310) V_INT level (1.8 V) V_INT level (1.8 V) V_INT level (1.8 V)
  • Page 147 SARA-R4/N4 series - System Integration Manual SARA-G3 SARA-U2 SARA-R4 SARA-N2 Pin Name Description Pin Name Description Pin Name Description Pin Name Description Remarks for migration GPIO3 / GPIO (G340/G350) GPIO3 GPIO GPIO3 GPIO GPIO2 GPIO Diverse driver strength 32K_OUT 32 kHz Output (G300/G310) V_INT level (1.8 V) V_INT level (1.8 V) V_INT level (1.8 V)
  • Page 148 SARA-R4/N4 series - System Integration Manual SARA-G3 SARA-U2 SARA-R4 SARA-N2 Pin Name Description Pin Name Description Pin Name Description Pin Name Description Remarks for migration Ground Ground Ground Ground RSVD / Reserved (G340/G350) RSVD Reserved RSVD Reserved RSVD Reserved 32 kHz Input vs Reserved EXT32K 32 kHz Input (G300/G310) Ground...
  • Page 149 SARA-R4/N4 series - System Integration Manual SARA-G3 SARA-U2 SARA-R4 SARA-N2 Pin Name Description Pin Name Description Pin Name Description Pin Name Description Remarks for migration SIM_DET SIM Detection Input SIM_DET SIM Detection Input GPIO5 SIM Detection Input RSVD Reserved SIM Detection vs Reserved V_INT level (1.8 V) V_INT level (1.8 V) V_INT level (1.8 V)
  • Page 150 SARA-R4/N4 series - System Integration Manual SARA-G3 SARA-U2 SARA-R4 SARA-N2 Pin Name Description Pin Name Description Pin Name Description Pin Name Description Remarks for migration RF Antenna I/O RF Antenna I/O RF Antenna I/O RF Antenna I/O Diverse bands supported 57-61 Ground Ground...

  • Page 151: B Glossary

    SARA-R4/N4 series - System Integration Manual B Glossary Abbreviation Definition 2nd Generation Cellular Technology (GSM, GPRS, EGPRS) 3rd Generation Cellular Technology (UMTS, HSDPA, HSUPA) 3GPP 3rd Generation Partnership Project 8-PSK 8 Phase-Shift Keying modulation Analog to Digital Converter AT Command Interpreter Software Subsystem, or attention Category European Conformity Direct Current...
  • Page 152 SARA-R4/N4 series - System Integration Manual Abbreviation Definition Global Positioning System Human Body Model HTTP HyperText Transfer Protocol Hardware Federal Telecommunications Institute Mexico Inter-Integrated Circuit interface Inter IC Sound interface ISED Innovation, Science and Economic Development Canada Low-Dropout Land Grid Array Low Noise Amplifier LPWA Low Power Wide Area...
  • Page 153 SARA-R4/N4 series - System Integration Manual Abbreviation Definition Serial Peripheral Interface Self-Resonant Frequency Secure Socket Layer To Be Defined Transmission Control Protocol Time Division Duplex TDMA Time Division Multiple Access Total Isotropic Sensitivity Test-Point Total Radiated Power UART Universal Asynchronous Receiver-Transmitter User Datagram Protocol UICC Universal Integrated Circuit Card...

  • Page 154: Related Documents

    SARA-R4/N4 series - System Integration Manual Related documents u-blox SARA-R4/N4 series Data Sheet, document number UBX-16024152 u-blox SARA-R4/N4 series AT Commands Manual, document number UBX-17003787 u-blox EVK-R4/N4 User Guide, document number UBX-16029216 Universal Serial Bus Revision 2.0 specification, http://www.usb.org/developers/docs/usb20_docs/ ITU-T Recommendation V.24 - 02-2000 - List of definitions for interchange circuits between Data Terminal Equipment (DTE) and Data Circuit-terminating Equipment (DCE), http://www.itu.int/rec/T-REC-V.24-200002-I/en 3GPP TS 27.007 - AT command set for User Equipment (UE)

  • Page 155: Revision History

    SARA-R4/N4 series - System Integration Manual Revision history Revision Date Name Comments 31-Jan-2017 sfal Initial release 05-May-2017 sfal / sses Updated supported features and characteristics Extended document applicability to SARA-R410M-01B product version 24-May-2017 sses Updated supported features and electrical characteristics 19-Jul-2017 sses Updated supported features and electrical characteristics...

  • Page 156: Contact

    SARA-R4/N4 series - System Integration Manual Contact For complete contact information, visit us at www.u-blox.com. u-blox Offices North, Central and South America Headquarters Asia, Australia, Pacific Europe, Middle East, Africa u-blox Singapore Pte. Ltd. u-blox America, Inc. u-blox AG Phone: +1 703 483 3180 Phone: +65 6734 3811...
  • Page 157 SARA-R4/N4 series - System Integration Manual Phone: +81 3 5775 3850 E-mail: info_jp@u-blox.com Support: support_jp@u-blox.com Regional Office Korea: Phone: +82 2 542 0861 E-mail: info_kr@u-blox.com Support: support_kr@u-blox.com Regional Office Taiwan: Phone: +886 2 2657 1090 E-mail: info_tw@u-blox.com Support: support_tw@u-blox.com UBX-16029218 - R11 Contact Page 157 of 157...

This manual is also suitable for:

Sara-n4 seriesSara-r404mSara-r410mSara-n410Sara-r412m

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