Ublox SARA-U201 ATEX System Integration Manual

Sara-g3 series, sara-u2 series, gsm/gprs and gsm/egprs/hspa cellular modules

Hide thumbs

page of 217

/ 217
Contents
Table of Contents
Bookmarks

Table of Contents

Quick Links

SARA-G3 and SARA-U2 series

GSM/GPRS and GSM/EGPRS/HSPA

Cellular Modules

System Integration Manual

Abstract

This document describes the features and the system integration of

the SARA-G3 series GSM/GPRS cellular modules and the SARA-U2

GSM/EGPRS/HSPA cellular modules.

These modules are complete and cost efficient solutions offering

voice and/or data communication over diverse cellular radio access

technologies in the same compact SARA form factor: the SARA-G3

series support up to four GSM/GPRS bands, while the SARA-U2

series support up to five high-speed HSPA bands and up to four

GSM/EGPRS bands.

www.u-blox.com

UBX-13000995 - R26

Table of Contents

Need help?

Do you have a question about the SARA-U201 ATEX and is the answer not in the manual?

Questions and answers

Summary of Contents for Ublox SARA-U201 ATEX

Page 1 SARA-G3 and SARA-U2 series GSM/GPRS and GSM/EGPRS/HSPA Cellular Modules System Integration Manual Abstract This document describes the features and the system integration of the SARA-G3 series GSM/GPRS cellular modules and the SARA-U2 GSM/EGPRS/HSPA cellular modules. These modules are complete and cost efficient solutions offering voice and/or data communication over diverse cellular radio access technologies in the same compact SARA form factor: the SARA-G3 series support up to four GSM/GPRS bands, while the SARA-U2...
Page 2 SARA-G3 and SARA-U2 series - System Integration Manual Document Information Title SARA-G3 and SARA-U2 series Subtitle GSM/GPRS and GSM/EGPRS/HSPA Cellular Modules Document type System Integration Manual Document number UBX-13000995 Revision and date 02-Jan-2018 Disclosure restriction u-blox reserves all rights to this document and the information contained herein. Products, names, logos and designs described herein may in whole or in part be subject to intellectual property rights.
Page 3 SARA-G3 and SARA-U2 series - System Integration Manual This document applies to the following products: Name Type number Modem version Application version PCN reference SARA-G300 SARA-G300-00S-00 08.58 N.A. GSM.G2-TN-13007 SARA-G300-00S-01 08.58 A01.01 UBX-16010060 SARA-G310 SARA-G310-00S-00 08.58 N.A. GSM.G2-TN-13007 SARA-G310-00S-01 08.58 A01.01...
Page 4: Preface
SARA-G3 and SARA-U2 series - System Integration Manual Preface u-blox Technical Documentation As part of our commitment to customer support, u-blox maintains an extensive volume of technical documentation for our products. In addition to our product-specific technical data sheets, the following manuals are available to assist u-blox customers in product design and development.
Page 5: Table Of Contents
SARA-G3 and SARA-U2 series - System Integration Manual Contents Preface ..........................4 Contents ..........................5 System description ..................... 10 Overview ............................10 Architecture ............................13 1.2.1 Internal blocks ..........................15 Pin-out ............................... 17 Operating modes ..........................22 Supply interfaces ..........................24 1.5.1 Module supply input (VCC) ......................
Page 6 SARA-G3 and SARA-U2 series - System Integration Manual 1.13.4 TCP/IP and UDP/IP ........................82 1.13.5 FTP .............................. 82 1.13.6 HTTP ............................82 1.13.7 SMTP ............................82 1.13.8 SSL/TLS ............................83 1.13.9 Dual stack IPv4/IPv6 ........................85 1.13.10 Smart temperature management ..................... 86 1.13.11 AssistNow clients and GNSS integration ...................
Page 7 Guidelines for antenna RF interface design ................170 2.15 Schematic for SARA-G3 and SARA-U2 series module integration ..........171 2.15.1 Schematic for SARA-G300 / SARA-G310 modules integration ........... 171 2.15.2 Schematic for SARA-G340 / SARA-G350 modules integration ........... 172 2.15.3 Schematic for SARA-U2 series modules integration ..............
Page 8 SARA-G3 and SARA-U2 series - System Integration Manual Innovation, Science and Economic Development Canada notice ............182 4.3.1 Declaration of conformity ......................182 4.3.2 Modifications ..........................183 European conformance CE mark ...................... 184 Brazilian Anatel certification ......................186 Australian Regulatory Compliance Mark ................... 186 Mexican IFT certification ........................
Page 9 SARA-G3 and SARA-U2 series - System Integration Manual Contact ..........................217 UBX-13000995 - R26 Contents Page 9 of 217...
Page 10: System Description
A-GPS (AssistNow Online and AssistNow Offline) functionality. SARA-G310 and SARA-G300 are respectively quad-band and dual-band GSM/GPRS cellular modules targeted for high volume cost sensitive applications, providing GSM/GPRS functionalities with a reduced set of additional features to minimize the customer’s total cost of ownership.
Page 11 SARA-G3 and SARA-U2 series - System Integration Manual Table 1 describes a summary of interfaces and features provided by SARA-G3 and SARA-U2 series modules. Module Data rate Bands Interfaces Audio Features Grade SARA-G300 ■ 42.8 85.6 900/1800 2 • ■ SARA-G310 42.8 85.6 4-band •...
Page 12 Band 5 (850 MHz) GSM 850 MHz Band 2 (1900 MHz) PCS 1900 MHz   SARA-U270: SARA-U270, SARA-G300, SARA-G340: Band 8 (900 MHz) E-GSM 900 MHz Band 1 (2100 MHz) DCS 1800 MHz WCDMA/HSDPA/HSUPA Power Class GSM/GPRS Power Class ...
Page 13: Architecture
SARA-G3 and SARA-U2 series - System Integration Manual Architecture Figure 1 summarizes the architecture of the SARA-G300 and SARA-G310 modules, while Figure 2 summarizes the architecture of the SARA-G340 and SARA-G350 modules, illustrating the internal blocks of the modules, consisting of the RF, Baseband and Power Management main sections and the available interfaces.
Page 14 SARA-G3 and SARA-U2 series - System Integration Manual Figure 3 shows the architecture of the SARA-U201 modules, Figure 4 summarizes the architecture of the SARA- U260 and SARA-U270 modules, while Figure 5 summarizes the architecture of the SARA-U280 modules, illustrating the internal blocks of the modules, consisting of the RF, Baseband and Power Management main sections and the available interfaces.
Page 15: Internal Blocks
SARA-G3 and SARA-U2 series - System Integration Manual 26 MHz 32 kHz Power-On Duplexer Reset Switch 3G PA transceiver Filter SIM card detection UART Cellular BaseBand Processor DDC (I Memory VCC (Supply) Digital audio (I V_BCKP (RTC) GPIO Power Management V_INT (I/O) Antenna detection Figure 5: SARA-U280 modules block diagram...
Page 16 AT+UPSV command). SARA-G300 and SARA-G310 modules are not equipped with an internal 32.768 kHz crystal: a proper 32 kHz signal must be provided at the EXT32K input pin of the modules to give the RTC clock reference and to provide the RTC functions as well as to reach the very low power idle mode (with power saving configuration enabled by AT+UPSV).
Page 17: Pin-Out
Access by external test-point is recommended. See section 1.6.3 for functional description. See section 2.3.2 for external circuit design-in. EXT32K SARA-G300 32 kHz input Input for RTC reference clock, needed to enter the low power idle mode and provide RTC functions.
Page 18 SARA-G3 and SARA-U2 series - System Integration Manual Function Pin Name Module Pin No Description Remarks VSIM SIM supply output VSIM = 1.80 V typ. or 2.85 V typ. automatically generated according to the connected SIM type. See section 1.8 for functional description. See section 2.5 for external circuit design-in.
Page 19 SARA-G3 and SARA-U2 series - System Integration Manual Function Pin Name Module Pin No Description Remarks RXD_AUX Auxiliary SARA-G3 Auxiliary UART 1.8 V output, Circuit 104 (RXD) in ITU-T V.24, UART data output for FW upgrade via EasyFlash tool, AT command mode , GNSS tunneling and diagnostics.
Page 20 SARA-G3 and SARA-U2 series - System Integration Manual Function Pin Name Module Pin No Description Remarks SARA-G340 C bus clock line 1.8 V open drain, for communication with the u-blox positioning modules / chips. Communication SARA-G350 with other external I C-slave devices as an audio SARA-U2 codec is additionally supported by SARA-U2 series.
Page 21 RESERVED pin Leave unconnected. See section 2.9 RSVD SARA-G340 RESERVED pin Internally not connected. Leave unconnected. SARA-G350 See section 2.9 SARA-U2 RSVD SARA-G300 16, 23, RESERVED pin Pin disabled. Leave unconnected. 25-27, SARA-G310 See section 2.9 34-37 RSVD SARA-G300 44-49 RESERVED pin Leave unconnected.
Page 22: Operating Modes
 The internal 32 kHz oscillator (SARA-G340, SARA-G350 and SARA-U2 series)  The 32 kHz signal provided at the EXT32K pin (SARA-G300 and SARA-G310) Active mode Module processor core runs with 26 MHz reference generated by the internal oscillator. Connected mode Voice or data call enabled and processor core runs with 26 MHz reference.
Page 23 SARA-G3 and SARA-U2 series - System Integration Manual Operating Description Transition between operating modes Mode Active The module is ready to communicate with an When the module is switched on by an appropriate power-on event external device by means of the application (see 2.3.1), the module enters active mode from not-powered or interfaces unless power saving configuration is power-off mode.
Page 24: Supply Interfaces
SARA-G3 and SARA-U2 series - System Integration Manual 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. The VCC pins are internally connected to the RF power amplifier and to the integrated Power Management Unit: all supply voltages needed by the module are generated from the VCC supply by integrated voltage regulators, including the V_BCKP Real Time Clock supply, V_INT digital interfaces supply and VSIM SIM card supply.
Page 25 SARA-G3 and SARA-U2 series - System Integration Manual 1.5.1.1 VCC supply requirements Table 6 summarizes the requirements for the VCC module supply. See section 2.2.1 for all the suggestions to properly design a VCC supply circuit compliant to the requirements listed in Table 6. VCC supply circuit affects the RF compliance of the device integrating SARA-G3 and SARA-U2 series modules with applicable required certification schemes as well as antenna circuit design.
Page 26 SARA-G3 and SARA-U2 series - System Integration Manual 1.5.1.2 VCC current consumption in 2G connected mode When a GSM call is established, the VCC consumption is determined by the current consumption profile typical of the GSM transmitting and receiving bursts. The current consumption peak during a transmission slot is strictly dependent on the transmitted power, which is regulated by the network.
Page 27 SARA-G3 and SARA-U2 series - System Integration Manual When a GPRS connection is established, more than one slot can be used to transmit and/or more than one slot can be used to receive. The transmitted power depends on network conditions, which set the peak current consumption, but following the 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 can be in the case of a GSM call.
Page 28 SARA-G3 and SARA-U2 series - System Integration Manual 1.5.1.3 VCC current consumption in 3G connected mode During a 3G connection, the SARA-U2 modules can transmit and receive continuously due to the Frequency Division Duplex (FDD) mode of operation with Wideband Code Division Multiple Access (WCDMA). The current consumption depends again on output RF power, which is always regulated by network commands.
Page 29 IDLE MODE Figure 14: VCC current consumption profile versus time of the SARA-G300 and SARA-G310 modules (with the EXT32K input fed by a proper external 32 kHz signal), or the SARA-G340 and SARA-G350 modules, or the SARA-U2 modules, when registered...
Page 30 IDLE MODE Figure 15: VCC current consumption profile versus time of the SARA-G300 and SARA-G310 modules (with the EXT32K input pin fed by the 32K_OUT output pin provided by these modules), when registered with the network, with power saving enabled: the low power idle mode is reached and periodical wake up to active mode are performed to monitor the paging channel For the modules’...
Page 31 ACTIVE MODE Figure 16: VCC current consumption profile versus time of the SARA-G300 and SARA-G310 modules (with the EXT32K input pin fed by proper external 32 kHz signal or by 32K_OUT output pin), or SARA-G340 and SARA-G350 modules (except ‘00’ versions),...
Page 32 ACTIVE MODE Figure 17: VCC current consumption profile versus time of the SARA-G300 and SARA-G310 modules (when their EXT32K input is not fed by a signal), or the SARA-G340 and SARA-G350 modules (‘00’ versions only), or the SARA-U2 modules, when registered...
Page 33: Rtc Supply Input/Output (V_Bckp)
(specified in the “Input characteristics of Supply/Power pins” table in the SARA-G3 series Data Sheet [1] and SARA-U2 series Data Sheet [2]) and, for SARA-G300 / SARA-G310 modules only, when their EXT32K input pin is fed by an external 32.768 kHz signal with proper characteristics (specified in the “EXT32K pin characteristics”...
Page 34: Generic Digital Interfaces Supply Output (V_Int)
SARA-G3 and SARA-U2 series - System Integration Manual The RTC has very low power consumption, but is highly temperature dependent. For example, at +25 °C with the V_BCKP voltage equal to the typical output value, the current consumption is approximately 2 µA (see the “Input characteristics of Supply/Power pins”...
Page 35: System Function Interfaces
Power-Off Mode RTC alarm programmed by AT+CALA command RTC alarm programmed by AT+CALA command (Not supported by SARA-G300 / SARA-G310) RESET_N pin released from low level Table 8: Summary of SARA-G3 and SARA-U2 modules’ switch-on events When the SARA-G3 and SARA-U2 series modules are in the not-powered mode (i.e. switched off with the VCC module supply not applied), they can be switched on by: ...
Page 36 SARA-G3 and SARA-U2 series - System Integration Manual 1.6.1.2 Switch-on sequence from not-powered mode Figure 21 shows the module’s power-on sequence from the not-powered mode, describing the following phases:  The external supply is applied to the VCC module supply inputs, representing the start-up event. ...
Page 37 SARA-G3 and SARA-U2 series - System Integration Manual 1.6.1.3 Switch-on sequence from power-off mode Figure 22 shows the modules power-on sequence from the power-off mode, describing the following phases:  The external supply is still applied to the VCC inputs as it is assumed that the module has been previously switched off by means of the AT+CPWROFF command: the V_BCKP output is internally enabled as proper VCC is present, the RESET_N of SARA-U2 series is set to high logic level due to internal pull-up to V_BCKP, the PWR_ON is set to high logic level due to external pull-up connected to V_BCKP or VCC.
Page 38 SARA-G3 and SARA-U2 series - System Integration Manual 1.6.1.4 General considerations for the switch-on procedure A greeting text can be activated by means of the +CSGT AT command (see the u-blox AT Commands Manual [3]) to notify the external application that the module is ready to operate (i.e. ready to reply to AT commands) and that the first AT command can be sent to the module.
Page 39: Module Power-Off
Temperature Supervisor feature is enabled and configured by the dedicated AT command. For more details, see section 1.13.10 and the u-blox AT Commands Manual [3], +USTS AT command. The Smart Temperature Supervisor feature is not supported by SARA-G300 and SARA-G310. UBX-13000995 - R26...
Page 40 SARA-G3 and SARA-U2 series - System Integration Manual 1.6.2.2 Switch-off sequence by AT+CPWROFF Figure 23 describes the SARA-G3 and SARA-U2 series modules power-off sequence, properly started sending the AT+CPWROFF command, allowing storage of the current parameter settings in the module’s non-volatile memory and a proper network detach, with the following phases: ...
Page 41: Module Reset
SARA-G3 and SARA-U2 series - System Integration Manual 1.6.3 Module reset SARA-G3 and SARA-U2 series modules can be properly reset (rebooted) by:  AT+CFUN command (see the u-blox AT Commands Manual [3] for more details). This command causes an “internal” or “software” reset of the module, which is an asynchronous reset of the module baseband processor.
Page 42: External 32 Khz Signal Input (Ext32K)
The EXT32K pin is not available on SARA-G340, SARA-G350 and SARA-U2 series modules. The EXT32K pin of SARA-G300 / SARA-G310 modules is an input pin that must be fed by a proper 32 kHz signal to make available the reference clock for the Real Time Clock (RTC) timing, used by the module processor when in the low power idle mode.
Page 43: Antenna Interface
SARA-G3 and SARA-U2 series - System Integration Manual Antenna interface 1.7.1 Antenna RF interface (ANT) The ANT pin of SARA-G3 and SARA-U2 series modules represents the RF input/output for 2G or 3G cellular RF signals reception and transmission. The ANT pin has a nominal characteristic impedance of 50  and must be connected to the antenna through a 50 ...
Page 44: Antenna Detection Interface (Ant_Det)
The SIM driver supports the PPS (Protocol and Parameter Selection) procedure for baud-rate selection, according to the values determined by the SIM Card. The SIM Application Toolkit is supported by all SARA-G3 and SARA-U2 series except SARA-G300 and SARA-G310. 1.8.2 SIM card detection interface (SIM_DET) Not supported by SARA-G300-00S and SARA-G310-00S modules.
Page 45: Serial Interfaces
SARA-U2 modules do not support FW upgrades using the u-blox EasyFlash tool over the Auxiliary UART. SARA-G3 modules do not provide a USB interface. SARA-U2 modules product versions “00”do not support Ethernet-over-USB. SARA-G300 and SARA-G310 modules do not support a DDC I C-bus compatible interface. SARA-G3 modules do not support communication with external I C devices other than u-blox GNSS positioning chips / modules.
Page 46: Asynchronous Serial Interface (Uart)
SARA-G3 and SARA-U2 series - System Integration Manual 1.9.1 Asynchronous serial interface (UART) 1.9.1.1 UART features The UART interface is a 9-wire 1.8 V unbalanced asynchronous serial interface available on all the SARA-G3 and SARA-U2 series modules, supporting:  AT command mode ...
Page 47 SARA-G3 and SARA-U2 series - System Integration Manual SARA-G3 modules’ autobauding and SARA-U2 modules’ one-shot autobauding are enabled by default. The following baud rates can be configured by AT command (see the u-blox AT Commands Manual [3], +IPR):  1200 bit/s ...
Page 48  Channel 2: AT and data  Channel 3: AT and data (not available on SARA-G300 / SARA-G310 modules)  Channel 4: AT and data (not available on SARA-G300 / SARA-G310 modules) Channel 5: AT and data (not available on SARA-G300 / SARA-G310 modules) ...
Page 49 SARA-G3 and SARA-U2 series - System Integration Manual 1.9.1.3 UART signal behavior At the module switch-on, before the UART interface initialization (as described in the power-on sequence reported in Figure 21 or Figure 22), each pin is first tri-stated and then is set to its related internal reset state .
Page 50 SARA-G3 and SARA-U2 series - System Integration Manual RTS signal behavior The hardware flow control input (RTS line) is set by default to the OFF state (high level) at UART initialization. The module then holds the RTS line in the OFF state if the line is not activated by the DTE: an active pull-up is enabled inside the module on the RTS input.
Page 51 SARA-G3 and SARA-U2 series - System Integration Manual DCD signal behavior If AT&C1 is set, as it is by default, the DCD module output line is set by default to the OFF state (high level) at UART initialization. The module then sets the DCD line according to the carrier detect status: ON if the carrier is detected, OFF otherwise.
Page 52 SARA-G3 and SARA-U2 series - System Integration Manual RI signal behavior The RI module output line is set by default to the OFF state (high level) at UART initialization. Then, during an incoming call, the RI line is switched from the OFF state to the ON state with a 4:1 duty cycle and a 5 second period (ON for 1 s, OFF for 4 s, see Figure 26), until the DTE attached to the module sends the ATA string and the module accepts the incoming data call.
Page 53 SARA-G3 and SARA-U2 series - System Integration Manual 1.9.1.4 UART and power-saving The power saving configuration is controlled by the AT+UPSV command (for the complete description, see the u-blox AT Commands Manual [3]). When power saving is enabled, the module automatically enters low power idle mode whenever possible, and otherwise the active mode is maintained by the module (see section 1.4 for definition and description of module operating modes referred to in this section).
Page 54 SARA-G3 and SARA-U2 series - System Integration Manual AT+UPSV HW flow control RTS line DTR line Communication during idle mode and wake up Enabled (AT&K3) Data sent by the DTE is correctly received by the module. Data sent by the module is correctly received by the DTE. Enabled (AT&K3) Data sent by the DTE is lost by the module.
Page 55 SARA-G3 and SARA-U2 series - System Integration Manual The time period between two paging receptions is defined by the current base station (i.e. by the network):  If the module is registered with a 2G network, the paging reception period can vary from ~0.47 s (DRX = 2, i.e.
Page 56 SARA-G3 and SARA-U2 series - System Integration Manual AT+UPSV=2: power saving enabled and controlled by the RTS line This configuration can only be enabled with the module hardware flow control disabled by AT&K0 command. The UART interface is immediately disabled after the DTE sets the RTS line to OFF. Then, the module automatically enters idle mode whenever possible according to any required activity related to the network or any other required activity related to the functions / interfaces of the module.
Page 57 SARA-G3 and SARA-U2 series - System Integration Manual Wake up via data reception The UART wake up via data reception consists of a special configuration of the module TXD input line that causes the system wake-up when a low-to-high transition occurs on the TXD input line. In particular, the UART is enabled and the module switches from the low power idle mode to active mode within ~20 ms from the first character received: this is the system “wake up time”.
Page 58 SARA-G3 and SARA-U2 series - System Integration Manual Figure 30 shows the case where in addition to the wake-up character further (valid) characters are sent. The wake up character wakes-up the module UART. The other characters must be sent after the “wake up time” of ~20 ms.
Page 59: Auxiliary Asynchronous Serial Interface (Aux Uart)
Channel 1: AT and data  Channel 2: AT and data  Channel 3: AT and data (not available on SARA-G300 / SARA-G310 modules)  Channel 4: AT and data (not available on SARA-G300 / SARA-G310 modules)  Channel 5: AT and data (not available on SARA-G300 / SARA-G310 modules) ...
Page 60 SARA-G3 and SARA-U2 series - System Integration Manual SARA-G3 modules’ auxiliary UART interface is by default configured for trace log capture (diagnostic purposes). SARA-U2 modules’ auxiliary UART interface is by default configured as DDC (I C) interface. The serial interface configuration can be changed by means of the AT+USIO command to select different alternative serial interface configuration variants, summarized in Table 12 and Table 13, available in a mutually exclusive way (for more details, see the u-blox AT Commands Manual [3], +USIO AT command).
Page 61 SARA-G3 and SARA-U2 series - System Integration Manual SARA-G3 and SARA-U2 series modules’ auxiliary UART interface can be configured in AT command mode by means of the AT+USIO command (for more details, see Table 12 and Table 13), so that: ...
Page 62 SARA-G3 and SARA-U2 series - System Integration Manual The multiplexer protocol is not supported over SARA-G3 and SARA-U2 series modules’ Auxiliary UART interface. SARA-G3 modules’ auxiliary UART interface can be configured in GNSS tunneling mode by means of the AT+USIO command (for more details, see Table 12 and the u-blox AT Commands Manual [3]), so that: ...
Page 63: Usb Interface
SARA-G3 and SARA-U2 series - System Integration Manual 1.9.3 USB interface The USB interface is not available on SARA-G3 series modules. 1.9.3.1 USB features SARA-U2 modules include a High-Speed USB 2.0 compliant interface with a maximum data rate of 480 Mbit/s between the module and a host processor.
Page 64 SARA-G3 and SARA-U2 series - System Integration Manual The user can concurrently use the AT command interface on one CDC, and Packet-Switched / Circuit-Switched Data communication on another CDC. The USB interface of the SARA-U2 module can be configured by means of the AT+UUSBCONF command (for more details, see the u-blox AT Commands Manual [3]) to select a different alternative USB profile, i.e.
Page 65 SARA-G3 and SARA-U2 series - System Integration Manual Default profile configuration Alternative profile configuration Function AT and Data Function AT and Data Interface 0 Abstract Control Model Interface 0 Abstract Control Model EndPoint Transfer: Interrupt EndPoint Transfer: Interrupt Interface 1 Data Interface 1 Data...
Page 66: Ddc (I C) Interface
USB not suspended, see sections 1.5.1.4, 1.5.1.5 and the SARA-U2 series Data Sheet [2]. 1.9.4 DDC (I C) interface SARA-G300 and SARA-G310 modules do not support DDC (I C) interface. An I C bus compatible Display Data Channel (DDC) interface for communication with u-blox GNSS receivers is available on SDA and SCL pins of SARA-G340, SARA-G350 and SARA-U2 modules.
Page 67 SARA-G3 and SARA-U2 series - System Integration Manual SARA-G340, SARA-G350 and SARA-U2 modules support these GNSS aiding types:  Local aiding  AssistNow Online  AssistNow Offline  AssistNow Autonomous The embedded GNSS aiding features can be used only if the DDC (I C) interface of the cellular module is connected to the u-blox GNSS receivers.
Page 68: Audio Interface
SARA-G3 and SARA-U2 series - System Integration Manual 1.10 Audio interface SARA-G300 and SARA-G310 modules do not support audio interface. The following audio interfaces are provided by SARA-G3 and SARA-U2 series modules:  SARA-G340 and SARA-G350 modules provide one analog audio interface and one digital audio interface ...
Page 69 SARA-G3 and SARA-U2 series - System Integration Manual 1.10.1.2 Downlink path SARA-G340 / SARA-G350 pins related to the analog audio downlink path are:  SPK_P / SPK_N: Differential analog audio signal output (positive/negative). These two pins are directly connected internally to the differential output of a low power audio amplifier, for which the input is connected internally to the digital processing system by to an integrated digital-to-analog converter.
Page 70: Digital Audio Interface
SARA-G3 and SARA-U2 series - System Integration Manual 1.10.2 Digital audio interface SARA-G340, SARA-G350 and SARA-U2 modules provide one 1.8 V bidirectional 4-wire (I2S_TXD data output, I2S_RXD data input, I2S_CLK clock, I2S_WA world alignment) I S digital audio interface that can be used for digital audio communication with external digital audio devices as an audio codec.
Page 71 SARA-G3 and SARA-U2 series - System Integration Manual 1.10.2.1 I S interface – PCM mode Main features of the I S interface in PCM mode, which are configurable via a specific AT command (for further details, see the related section in the u-blox AT Commands Manual [3], +UI2S AT command): ...
Page 72: Voice-Band Processing System
SARA-G3 and SARA-U2 series - System Integration Manual 1.10.3 Voice-band processing system 1.10.3.1 SARA-G340 / SARA-G350 modules audio processing The voice-band processing on the SARA-G340 / SARA-G350 modules is implemented in the DSP core inside the baseband chipset. The analog audio front-end of the chipset is connected to the digital system through 16 bit ADC converters in the uplink path, and through 16 bit DAC converters in the downlink path.
Page 73 SARA-G3 and SARA-U2 series - System Integration Manual Two different sample-based sample rate converters are used: an interpolator, required to convert the sample-based voice-band processing sampling rate of 8 kHz to the analog audio front-end output rate of 47.6 kHz; a decimator, required to convert the circular buffer sampling rate of 47.6 kHz to the I2Sx TX or the uplink path sample rate of 8 kHz.
Page 74 SARA-G3 and SARA-U2 series - System Integration Manual URECFILE UPLAYFILE UAREC UAPLAY Mix_Afe I2S_RXD Radio TX Hands- free Scal_Mic Digital Gain Tone Generator Sidetone Scal_Rec Digital Gain From I2S_TXD Radio RX Speech level Mix_Afe URECFILE UPLAYFILE UAREC UAPLAY Legend: UBF= Uplink Biquad Filter DBF = Downlink Biquad Filter NR = Noise Reduction Figure 34: SARA-U2 “04”...
Page 75 SARA-G3 and SARA-U2 series - System Integration Manual  Function configurable via specific AT commands (see the u-blox AT Commands Manual [3]) Signal routing: +USPM command Analog amplification, digital amplification: +USGC, +CLVL, +CRSL, +CMUT command Digital filtering: +UUBF, +UDBF commands Hands-free algorithms (echo cancellation, Noise suppression, Automatic Gain control) +UHFP command Sidetone generation (feedback of uplink speech signal to downlink path): +USTN command Playing/mixing of alert tones:...
Page 76: General Purpose Input/Output (Gpio)
SARA-G3 and SARA-U2 series - System Integration Manual 1.11 General Purpose Input/Output (GPIO) SARA-G300 and SARA-G310 modules do not support GPIOs. SARA-G340, SARA-G350 and SARA-U2 modules provide pins which can be configured as general purpose input or output, or can be configured to provide special functions via u-blox AT commands (for further details, see the u-blox AT Commands Manual [3], +UGPIOC, +UGPIOR, +UGPIOW, +UGPS, +UGPRF): ...
Page 77 SARA-G3 and SARA-U2 series - System Integration Manual  GNSS supply enable: The GPIO2 is by default configured by AT+UGPIOC command to enable or disable the supply of the u-blox GNSS receiver connected to the cellular module. The GPIO1, GPIO3, GPIO4 pins and, on SARA-U2 series only, also the SIM_DET pin, can be configured to provide the “GNSS supply enable”...
Page 78 SARA-G3 and SARA-U2 series - System Integration Manual  Last gasp: Only the GPIO3 pin can be configured to provide the “Last gasp” function, to trigger the delivery of a last alarm notification to a remote entity in the case of a power supply outage (configured by means of AT+ULGASP command), setting the parameter <gpio_mode>...
Page 79 SARA-G3 and SARA-U2 series - System Integration Manual  General purpose input: All the GPIOs can be configured as input to sense high or low digital level through AT+UGPIOR command, setting the parameter <gpio_mode> of AT+UGPIOC command to 1. The “General purpose input” mode can be provided on more than one pin at a time. No GPIO pin is by default configured as “General purpose input”.
Page 80: Reserved Pins (Rsvd)
SARA-G3 and SARA-U2 series - System Integration Manual Module Name Description Remarks SARA-G340 GPIO2 GPIO By default, the pin is configured to provide GNSS Supply Enable function. SARA-G350 Can be alternatively configured by the +UGPIOC command as SARA-U2 series  Input / Output ...
Page 81: System Features
1.13 System features 1.13.1 Network indication Not supported by SARA-G300 and SARA-G310 modules. The GPIO1, or the GPIO2, GPIO3, GPIO4 and, on SARA-U2 series only, the SIM_DET, alternatively from their default settings, can be configured to indicate network status (i.e. no service, registered home network, registered visitor network, voice or data call enabled), by means of the AT+UGPIOC command.
Page 82: Tcp/Ip And Udp/Ip
For more details about AT commands see the u-blox AT Commands Manual [3]. 1.13.7 SMTP Not supported by SARA-G300, SARA-G310 and SARA-U2 modules. SARA-G340 and SARA-G350 modules support SMTP client functionalities. It is possible to specify the common parameters (e.g. server data, authentication method, etc. can be specified), to send an email to a SMTP server.
Page 83: Ssl/Tls
SARA-G3 and SARA-U2 series - System Integration Manual 1.13.8 SSL/TLS Not supported by SARA-G300 and SARA-G310 modules. Not supported by SARA-G340-00S and SARA-G350-00S / SARA-G350-00X modules. The modules support the Secure Sockets Layer (SSL) / Transport Layer Security (TLS) to provide security over the FTP and HTTP protocols with certificate key sizes defined as follows:.
Page 84 SARA-G3 and SARA-U2 series - System Integration Manual SSL/TLS Version SARA-U2 series SARA-G3 series SSL 2.0 SSL 3.0 TLS 1.0 TLS 1.1 TLS 1.2 Table 17: SSL/TLS version support Algorithm SARA-U2 series SARA-G3 series Table 18: Authentication Algorithm SARA-U2 series SARA-G3 series 3DES AES128...
Page 85: Dual Stack Ipv4/Ipv6
SARA-G3 and SARA-U2 series - System Integration Manual Description Registry value SARA-U2 series SARA-G3 series TLS_RSA_WITH_AES_128_CBC_SHA 0x00,0x2F TLS_RSA_WITH_AES_128_CBC_SHA256 0x00,0x3C TLS_RSA_WITH_AES_256_CBC_SHA 0x00,0x35 TLS_RSA_WITH_AES_256_CBC_SHA256 0x00,0x3D TLS_RSA_WITH_3DES_EDE_CBC_SHA 0x00,0x0A TLS_RSA_WITH_RC4_128_MD5 0x00,0x04 TLS_RSA_WITH_RC4_128_SHA 0x00,0x05 TLS_PSK_WITH_AES_128_CBC_SHA 0x00,0x8C TLS_PSK_WITH_AES_256_CBC_SHA 0x00,0x8D TLS_PSK_WITH_3DES_EDE_CBC_SHA 0x00,0x8B TLS_RSA_PSK_WITH_AES_128_CBC_SHA 0x00,0x94 TLS_RSA_PSK_WITH_AES_256_CBC_SHA 0x00,0x95 TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA 0x00,0x93 TLS_PSK_WITH_AES_128_CBC_SHA256 0x00,0xAE...
Page 86: Smart Temperature Management
SARA-G3 and SARA-U2 series - System Integration Manual 1.13.10 Smart temperature management Not supported by SARA-G300 and SARA-G310 modules. Cellular modules – independently from the specific model – always have a well-defined operating temperature range. This range should be respected to guarantee full device functionality and long life span.
Page 87 SARA-G3 and SARA-U2 series - System Integration Manual Figure 36 shows the flow diagram implemented in the SARA-U2 series, SARA-G340 and SARA-G350 modules for the Smart Temperature Supervisor. IF STS enabled Feature enabled Feature disabled: (full logic or no action indication only) Read temperature...
Page 88 SARA-G3 and SARA-U2 series - System Integration Manual Threshold definitions When the module application operates at extreme temperatures with Smart Temperature Supervisor enabled, the user should note that outside the valid temperature range the device automatically shuts down as described above.
Page 89: Assistnow Clients And Gnss Integration
SARA-G3 and SARA-U2 series - System Integration Manual 1.13.11 AssistNow clients and GNSS integration Not supported by SARA-G300 and SARA-G310 modules. For customers using u-blox GNSS receivers, SARA-G340, SARA-G350 and SARA-U2 modules feature embedded AssistNow clients. AssistNow A-GPS provides better GNSS performance and faster Time-To-First-Fix. The clients can be enabled and disabled with an AT command (see the u-blox AT Commands Manual [3]).
Page 90 SARA-G3 and SARA-U2 series - System Integration Manual ® 1. Several devices reported their position to the CellLocate server when observing a specific cell (the As in the picture represent the position of the devices which observed the same cell A) 2.
Page 91 SARA-G3 and SARA-U2 series - System Integration Manual 4. The visibility of multiple cells provides increased accuracy based on the intersection of areas of visibility. ® ® CellLocate is implemented using a set of two AT commands that allow configuration of the CellLocate service (AT+ULOCCELL) and requesting position according to the user configuration (AT+ULOC).
Page 92: Control Plane Aiding / Location Services (Lcs)
SARA-G3 and SARA-U2 series - System Integration Manual 1.13.13 Control Plane Aiding / Location Services (LCS) Not supported by SARA-G3 series modules. Not supported by the “00” product version of SARA-U2 module. With the Assisted GPS feature, a location server provides the module with the GPS system information that otherwise must be downloaded from satellites.
Page 93: Firmware Upgrade Over At (Foat)
SARA-G3 and SARA-U2 series - System Integration Manual 1.13.17 Firmware upgrade Over AT (FOAT) Overview This feature allows upgrading the module Firmware over the AT interface of the module (the UART for SARA-G3 modules, the UART or the USB for SARA-U2 modules), using AT Commands. ...
Page 94: Smart Radio Coverage Manager
For the detailed description, see the u-blox AT Commands Manual [3], +UDCONF=57 AT command. 1.13.21 In-Band modem (eCall / ERA-GLONASS) Not supported by SARA-G300 / SARA-G310 / SARA-U260 / SARA-U280 modules. SARA-G340, SARA-G350 and SARA-U2 modules support an In-Band modem solution for the European eCall and the Russian ERA-GLONASS emergency call applications over cellular networks, implemented according to 3GPP TS 26.267 [24], BS EN 16062:2011 [32] and ETSI TS 122 101 [33] specifications.
Page 95: Sim Access Profile (Sap)
SARA-G3 and SARA-U2 series - System Integration Manual 1.13.22 SIM Access Profile (SAP) Not supported by SARA-G3 modules. SIM access profile (SAP) feature allows SARA-U2 modules to access and use a remote (U)SIM card instead of the local SIM card directly connected to the module (U)SIM interface. SARA-U2 modules provide a dedicated USB SAP channel and dedicated multiplexer SAP channel over UART for communication with the remote (U)SIM card.
Page 96: Power Saving
The 32 kHz signal provided at the EXT32K input pin, for SARA-G300 and SARA-G310 modules SARA-G300 and SARA-G310 need a 32 kHz signal at EXT32K input to reach the low power idle mode. For the complete description of the AT+UPSV command, see the u-blox AT Commands Manual [3].
Page 97: Design-In
2.7.2 and 2.8 for schematic and layout design. 8. 32 kHz signal: the EXT32K input pin and the 32K_OUT output pin of SARA-G300 and SARA-G310 modules require accurate layout design as it may affect the stability of the RTC reference. Follow the suggestions provided in section 2.3.3 for schematic and layout design.
Page 98: Supply Interfaces
SARA-G3 and SARA-U2 series - System Integration Manual 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 must be connected to the external supply minimizing the power loss due to series resistance.
Page 99 SARA-G3 and SARA-U2 series - System Integration Manual Keep in mind that the use of rechargeable batteries requires the implementation of a suitable charger circuit which is not included in SARA-G3 and SARA-U2 series modules. The charger circuit must be designed to prevent over-voltage on VCC pins of the module, and it should be selected according to the application requirements: a DC/DC switching charger is the typical choice when the charging source has an high nominal voltage (e.g.
Page 100 SARA-G3 and SARA-U2 series - System Integration Manual 2.2.1.2 Guidelines for VCC supply circuit design using a switching regulator The use of a switching regulator is suggested when the difference from the available supply rail to the VCC value is high: switching regulators provide good efficiency transforming a 12 V or greater voltage supply to the typical 3.8 V value of the VCC supply.
Page 101 SARA-G3 and SARA-U2 series - System Integration Manual Figure 41 and the components listed in Table 24 show an example of a high reliability power supply circuit, where the module VCC is supplied by a step-down switching regulator capable of delivering to VCC pins the specified maximum peak / pulse current, with low output ripple and with fixed switching frequency in PWM mode operation greater than 1 MHz.
Page 102 SARA-G3 and SARA-U2 series - System Integration Manual Figure 42 and the components listed in Table 25 show an example of a low cost power supply circuit, where the VCC module supply is provided by a step-down switching regulator capable of delivering to VCC pins the specified maximum peak / pulse current, transforming a 12 V supply input.
Page 103 SARA-G3 and SARA-U2 series - System Integration Manual 2.2.1.3 Guidelines for VCC supply circuit design using a Low Drop-Out (LDO) linear regulator The use of a linear regulator is suggested when the difference from the available supply rail and the VCC value is low: linear regulators provide high efficiency when transforming a 5 V supply to a voltage value within the module VCC normal operating range.
Page 104 SARA-G3 and SARA-U2 series - System Integration Manual Figure 44 and the components listed in Table 27 show an example of a low cost power supply circuit, where the VCC module supply is provided by an LDO linear regulator capable of delivering the specified highest peak / pulse current, with proper power handling capability.
Page 105 SARA-G3 and SARA-U2 series - System Integration Manual 2.2.1.5 Guidelines for VCC supply circuit design using a primary (disposable) battery The characteristics of a primary (non-rechargeable) battery connected to VCC pins should meet the following prerequisites to comply with the module VCC requirements summarized in Table 6: ...
Page 106 SARA-G3 and SARA-U2 series - System Integration Manual SARA-G3 / SARA-U2 (except SARA-U201) Figure 45: Suggested design for all SARA-G3 and SARA-U2 series modules except SARA-U201: VCC bypass capacitors are used to reduce ripple / noise on VCC voltage profile and to avoid undershoot / overshoot on VCC voltage drops SARA-U201 Capacitor with SRF ~900 MHz...
Page 107 SARA-G3 and SARA-U2 series - System Integration Manual 2.2.1.7 Additional guidelines for VCC supply circuit design of SARA-G3 modules version “02” onward SARA-G3 modules, versions “02” onwards, provide separate supply inputs over the VCC pins (see Figure 8):  VCC pins #52 and #53: supply input for the internal RF power amplifier, demanding most of the total current drawn of the module when RF transmission is enabled during a voice/data call ...
Page 108 SARA-G3 and SARA-U2 series - System Integration Manual 2.2.1.8 Guidelines for external battery charging circuit Application devices that are powered by a Li-Ion (or Li-Polymer) battery pack should implement a suitable battery charger design as SARA-G3 and SARA-U2 series modules do not have an on-board charging circuit. In the application circuit example described in Figure 48, a rechargeable Li-Ion (or Li-Polymer) battery pack, that features proper pulse and DC discharge current capabilities and proper DC series resistance, is directly connected to the VCC supply input of the module.
Page 109 SARA-G3 and SARA-U2 series - System Integration Manual 2.2.1.9 Guidelines for external battery 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 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 110 SARA-G3 and SARA-U2 series - System Integration Manual Battery charging is managed in three phases:  Pre-charge constant current (active when the battery is deeply discharged): the battery is charged with a low current, set to 10% of the fast-charge current ...
Page 111 SARA-G3 and SARA-U2 series - System Integration Manual 2.2.1.10 Guidelines for VCC supply layout design Good connection of the module VCC pins with DC supply source is required for correct RF performance. Guidelines are summarized in the following list:  All the available VCC pins must be connected to the DC source.
Page 112: Rtc Supply (V_Bckp)
SARA-G3 and SARA-U2 series - System Integration Manual 2.2.2 RTC supply (V_BCKP) 2.2.2.1 Guidelines for V_BCKP circuit design If RTC timing is required to run for a time interval of T [s] at +25 °C when VCC supply is removed, place a capacitor with a nominal capacitance of C [µF] at the V_BCKP pin.
Page 113 GNSS receiver. On SARA-G300 and SARA-G310 modules, the V_BCKP supply output can be used to supply an external 32 kHz oscillator which provides a 32 kHz signal to the EXT32K input pin as reference clock for the RTC timing, so that the modules can enter the low power idle mode and can make available the RTC functions.
Page 114: Interface Supply (V_Int)
SARA-G3 and SARA-U2 series - System Integration Manual 2.2.3 Interface supply (V_INT) 2.2.3.1 Guidelines for V_INT circuit design The V_INT digital interfaces 1.8 V supply output can be mainly used to:  Pull-up DDC (I C) interface signals (see section 2.6.4 for more details) ...
Page 115: System Functions Interfaces
SARA-G3 and SARA-U2 series - System Integration Manual System functions interfaces 2.3.1 Module power-on (PWR_ON) 2.3.1.1 Guidelines for PWR_ON circuit design Connecting the PWR_ON input to a push button that shorts the PWR_ON pin to ground, provide an external pull-up resistor (e.g. 100 kΩ) biased by the V_BCKP supply pin of the module, as described in Figure 52 and Table 33.
Page 116: Module Reset (Reset_N)
SARA-G3 and SARA-U2 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 the SARA-G3 and SARA-U2 series modules until a valid VCC supply is provided after that the module has been switched off by the AT+CPWROFF command: 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 117: 32 Khz Signal (Ext32K And 32K_Out)
Figure 55 and Table 35 describe how an external oscillator can be connected to the EXT32K input, providing the 32 kHz signal which constitutes the RTC reference clock, so that SARA-G300 / SARA-G310 modules can enter the very low power idle mode, reaching very low current consumption figures (see section 1.5.1.4 and the SARA-G3 series Data Sheet [1]), and can provide RTC functions (available with V_BCKP voltage in the operating range).
Page 118: Antenna Interface
SARA-G3 and SARA-U2 series - System Integration Manual 2.3.3.2 Guidelines for EXT32K and 32K_OUT layout design The EXT32K input pin and the 32K_OUT output pin require accurate layout design: avoid injecting noise on these pins as it may affect the stability of the RTC timing reference. Antenna interface The ANT pin, provided by all the SARA-G3 and SARA-U2 series modules, represents the RF input/output used to transmit and receive the 2G/3G RF cellular signals: the antenna must be connected to this pin.
Page 119 SARA-G3 and SARA-U2 series - System Integration Manual 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, including PCB layout and matching circuitry. Further to the custom PCB and product restrictions, the antenna may require tuning to obtain the required performance for compliance with the applicable certification schemes.
Page 120 SARA-G3 and SARA-U2 series - System Integration Manual Guidelines for RF transmission line design The transmission line from the ANT pad up to antenna connector or up to the internal antenna pad must be designed so that the characteristic impedance is as close as possible to 50 . The transmission line can be designed as a micro strip (consists of a conducting strip separated from a ground plane by a dielectric material) or a strip line (consists of a flat strip of metal which is sandwiched between two parallel ground planes within a dielectric material).
Page 121 SARA-G3 and SARA-U2 series - System Integration Manual Additionally to the 50  impedance, the following guidelines are recommended for the transmission line design:  Minimize the transmission line length: the insertion loss should be minimized as much as possible, in the order of a few tenths of a dB.
Page 122 SARA-G3 and SARA-U2 series - System Integration Manual Guidelines for RF termination design The RF termination must provide a characteristic impedance of 50  as well as the RF transmission line up to the RF termination itself, to match the characteristic impedance of the ANT pin of the module. However, real antennas do not have perfect 50 ...
Page 123 SARA-G3 and SARA-U2 series - System Integration Manual Examples of antennas Table 36 lists some examples of possible internal on-board surface-mount antennas Manufacturer Part Number Product Name Description Taoglas PA.25.A Anam GSM / WCDMA SMD Antenna 824..960 MHz, 1710..2170 MHz 36.0 x 6.0 x 5.0 mm Taoglas PA.710.A...
Page 124 SARA-G3 and SARA-U2 series - System Integration Manual Table 38 lists some examples of possible external antennas. Manufacturer Part Number Product Name Description Taoglas GSA.8827.A.101111 Phoenix GSM / WCDMA / LTE low-profile adhesive-mount Antenna with cable and SMA(M) connector 698..960 MHz, 1575.42 MHz, 1710..2170 MHz, 2490..2690 MHz 105 x 30 x 7.7 mm Taoglas GSA.8821.A.301721...
Page 125: Antenna Detection Interface (Ant_Det)
SARA-G3 and SARA-U2 series - System Integration Manual 2.4.2 Antenna detection interface (ANT_DET) Antenna detection interface (ANT_DET) is not supported by SARA-G300 and SARA-G310 modules. 2.4.2.1 Guidelines for ANT_DET circuit design Figure 60 and Table 39 describe the recommended schematic and components for the antenna detection circuit to be provided on the application board for the diagnostic circuit that must be provided on the antenna assembly to achieve antenna detection functionality.
Page 126 SARA-G3 and SARA-U2 series - System Integration Manual  Additional high pass filter (C3 and L2 in Figure 60) is provided at the ANT pin as an ESD immunity improvement for SARA-U260, SARA-U270 and SARA-U280 modules (a series 0  jumper can be mounted for SARA-G340 and SARA-G350 modules instead of the high pass filter, as no further precaution to ESD immunity test is needed).
Page 127 SARA-G3 and SARA-U2 series - System Integration Manual 2.4.2.2 Guidelines for ANT_DET layout design Figure 61 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 60 and Table 39.
Page 128: Sim Interface
SARA-G3 and SARA-U2 series - System Integration Manual SIM interface 2.5.1.1 Guidelines for SIM circuit design 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 cellular network.
Page 129 SARA-G3 and SARA-U2 series - System Integration Manual Guidelines for single SIM card connection without detection An application circuit for the connection to a single removable SIM card placed in a SIM card holder is described in Figure 62, where the optional SIM detection feature is not implemented (see the circuit described in Figure 64 if the SIM detection feature is required).
Page 130 SARA-G3 and SARA-U2 series - System Integration Manual Guidelines for single SIM chip connection An application circuit for the connection to a single solderable SIM chip (M2M UICC Form Factor) is described in Figure 63, where the optional SIM detection feature is not implemented (see the circuit described in Figure 64 if the SIM detection feature is required).
Page 131 SARA-G3 and SARA-U2 series - System Integration Manual Guidelines for single SIM card connection with detection SIM card detection is not supported by SARA-G300-00S and SARA-G310-00S modules. An application circuit for the connection to a single removable SIM card placed in a SIM card holder is described in Figure 64, where the optional SIM card detection feature is implemented.
Page 132 SARA-G3 and SARA-U2 series - System Integration Manual Guidelines for dual SIM card / chip connection Two SIM card / chip can be connected to the modules’ SIM interface as illustrated in the circuit of Figure 65. SARA-G3 and SARA-U2 modules do not support the usage of two SIM at the same time, but two SIM can be populated on the application board providing a proper switch to connect only the first SIM or only the second SIM per time to the SIM interface of the SARA-G3 and SARA-U2 modules as described in Figure 65.
Page 133 SARA-G3 and SARA-U2 series - System Integration Manual FIRST SIM CARD SARA-G3 / SARA-U2 VPP (C6) 4PDT VCC (C1) Analog IO (C7) Switch CLK (C3) 1VSIM VSIM VSIM 2VSIM RST (C2) 1DAT SIM_IO GND (C5) 2DAT C2 C3 D1 D2 D3 D4 1CLK SIM_CLK 2CLK...
Page 134: Serial Interfaces
SARA-G3 and SARA-U2 series - System Integration Manual Serial interfaces 2.6.1 Asynchronous serial interface (UART) 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 135 SARA-G3 and SARA-U2 series - System Integration Manual Providing the TXD, RXD, RTS, CTS and DTR lines only (not using the complete V.24 link) If the functionality of the DSR, DCD and RI lines is not required, or the lines are not available: ...
Page 136 SARA-G3 and SARA-U2 series - System Integration Manual If only TXD, RXD, RTS, CTS and DTR lines are provided (as implemented in Figure 68 and in Figure 69) and if HW flow-control is enabled (AT&K3, default setting), the power saving can be activated as it can be done when the complete UART link is provided (9-wire, as implemented in Figure 66 and in Figure 67), i.e.
Page 137 SARA-G3 and SARA-U2 series - System Integration Manual 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 described in Figure 71.
Page 138 SARA-G3 and SARA-U2 series - System Integration Manual If RS-232 compatible signal levels are needed, the Maxim 13234E voltage level translator can be used. This chip translates voltage levels from 1.8 V (module side) to the RS-232 standard. If a 1.8 V Application Processor (DTE) is used, the circuit that should be implemented as described in Figure 72: Application Processor SARA-G3 / SARA-U2 (1.8V DTE)
Page 139 SARA-G3 and SARA-U2 series - System Integration Manual If only TXD and RXD lines are provided, data delivered by the DTE can be lost with these settings: HW flow-control enabled in the module (AT&K3, that is the default setting) Module power saving enabled by AT+UPSV=1 HW flow-control disabled in the DTE In this case the first character sent when the module is in idle mode will be a wake-up character and will not be a valid communication character (see section 1.9.1.4 for the complete description).
Page 140: Auxiliary Asynchronous Serial Interface (Uart Aux)
SARA-G3 and SARA-U2 series - System Integration Manual 2.6.2 Auxiliary asynchronous serial interface (UART AUX) Auxiliary UART interface is not supported by SARA-U2 "00", "03", "53", "63", "73" product versions. 2.6.2.1 Guidelines for UART AUX circuit design The auxiliary UART interface can be connected to an application processor for AT command mode and/or GNSS tunneling mode (the latter is supported by SARA-G3 modules product versions “02”...
Page 141 SARA-G3 and SARA-U2 series - System Integration Manual If a 3.0 V application processor is used, then it is recommended to connect the 1.8 V auxiliary UART interface of the module by means of appropriate unidirectional voltage translators using the module V_INT output as the 1.8 V supply for the voltage translators on the module side, as described in Figure 75.
Page 142: Universal Serial Bus (Usb)
SARA-G3 and SARA-U2 series - System Integration Manual 2.6.3 Universal Serial Bus (USB) USB interface is not supported by SARA-G3 modules. 2.6.3.1 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 143 SARA-G3 and SARA-U2 series - System Integration Manual 2.6.3.2 Guidelines for USB layout design The USB_D+ / USB_D- lines require accurate layout design to achieve reliable signaling at the high speed data rate (up to 480 Mbit/s) supported by the USB serial interface. The characteristic impedance of the USB_D+ / USB_D- lines is specified by the Universal Serial Bus Revision 2.0 specification [14].
Page 144: Ddc (I C) Interface
SARA-G3 and SARA-U2 series - System Integration Manual 2.6.4 DDC (I C) interface DDC (I C) interface is not supported by SARA-G300 and SARA-G310 modules. 2.6.4.1 Guidelines for DDC (I C) circuit design General considerations The DDC I C-bus master interface of SARA-G340, SARA-G350 and SARA-U2 cellular modules can be used to...
Page 145 SARA-G3 and SARA-U2 series - System Integration Manual Connection with u-blox 1.8 V GNSS receivers Figure 79 shows an application circuit example for connecting a SARA-G340, SARA-G350 or SARA-U2 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 1.8 V GNSS receiver, with appropriate pull-up resistors connected to the 1.8 V GNSS supply enabled after the V_INT supply of the I C pins of the cellular module.
Page 146 SARA-G3 and SARA-U2 series - System Integration Manual The supply of the u-blox 1.8 V GNSS receiver can be switched off using an external p-channel MOSFET controlled by the GPIO2 pin by means of a proper inverting transistor as shown in Figure 80, implementing the “GNSS supply enable”...
Page 147 SARA-G3 and SARA-U2 series - System Integration Manual Connection with u-blox 3.0 V GNSS receivers Figure 81 shows an application circuit example for connecting a SARA-G340 or a SARA-G350 cellular module to a u-blox 3.0 V GNSS receiver:  The SDA and SCL pins of SARA-G340 / SARA-G350 are directly connected to the related pins of the u-blox 3.0 V GNSS receiver, with appropriate pull-up resistors connected to the 3.0 V GNSS supply enabled after the V_INT supply of the I C pins of the cellular module.
Page 148 SARA-G3 and SARA-U2 series - System Integration Manual Figure 82 shows an application circuit example for connecting a SARA-U2 cellular module to a u-blox 3.0 V GNSS receiver:  As the SDA and SCL pins of the SARA-U2 cellular module are not tolerant up to 3.0 V, the connection to the related I C pins of the u-blox 3.0 V GNSS receiver must be provided using a proper I C-bus Bidirectional...
Page 149: Audio Interface
SARA-G3 and SARA-U2 series - System Integration Manual Audio interface 2.7.1 Analog audio interface SARA-G300, SARA-G310 and SARA-U2 modules do not provide analog audio interface. 2.7.1.1 Guidelines for microphone and speaker connection circuit design (headset / handset modes) SARA-G340 and SARA-G350 modules provide one analog audio input path and one analog audio output path: the same paths are used for both headset and handset modes, so that basically the same application circuit can be implemented for both headset and handset modes.
Page 150 SARA-G3 and SARA-U2 series - System Integration Manual  Provide proper parts on each line connected to the receiver / speaker as noise and EMI improvements, to minimize RF coupling, according to EMC requirements of the custom application. Mount a 27 pF bypass capacitor (e.g. Murata GRM1555C1H270J) from each speaker line to solid ground plane (C6 and C7 capacitors in Figure 83).
Page 151 SARA-G3 and SARA-U2 series - System Integration Manual 2.7.1.2 Guidelines for microphone and loudspeaker connection circuit design (hands-free mode) Figure 84 shows an application circuit for the analog audio interface in hands-free mode, connecting a 2.2 k electret microphone and an 8  or 4  loudspeaker: ...
Page 152 SARA-G3 and SARA-U2 series - System Integration Manual SARA-G340 SARA-G350 MIC_BIAS MIC_P MIC_N Microphone Connector MIC_GND Audio Amplifier LSPK Loud-Speaker Connector SPK_P OUT+ SPK_N OUT- Figure 84: Analog audio interface hands-free mode application circuit Reference Description Part Number – Manufacturer C1, C10 10 µF Capacitor Ceramic X5R 0603 20% 6.3 V GRM188R60J106ME47 –...
Page 153 SARA-G3 and SARA-U2 series - System Integration Manual 2.7.1.3 Guidelines for external analog audio device connection circuit design The differential analog audio I/O can be used to connect the module to an external analog audio device. Audio devices with a differential analog I/O are preferable, as they are more immune to external disturbances. Figure 85 and Table 56 describe the application circuits, following the suggested circuit design-in.
Page 154 SARA-G3 and SARA-U2 series - System Integration Manual SARA-G340 SARA-G340 Audio Device Audio Device SARA-G350 SARA-G350 SPK_P Analog IN (+) SPK_P Analog IN SPK_N Analog IN (-) SPK_N Reference MIC_BIAS MIC_BIAS MIC_GND MIC_GND MIC_P Analog OUT (+) MIC_P Analog OUT MIC_N Analog OUT (-) MIC_N...
Page 155 SARA-G3 and SARA-U2 series - System Integration Manual  Avoid coupling of any noisy signal to speaker lines: it is recommended to route speaker lines away from module VCC supply line, any switching regulator line, RF antenna lines, digital lines and any other possible noise source.
Page 156: Digital Audio Interface
SARA-G3 and SARA-U2 series - System Integration Manual 2.7.2 Digital audio interface SARA-G300 and SARA-G310 modules do not provide digital audio interface. 2.7.2.1 Guidelines for digital audio circuit design The I S digital audio interface of SARA-G3 and SARA-U2 series modules can be connected to an external digital audio device for voice applications.
Page 157 SARA-G3 and SARA-U2 series - System Integration Manual Figure 86 and Table 57 describe an application circuit example for the I S digital audio interface of SARA-U2 modules providing voice capability using an external audio voice codec. DAC and ADC integrated in the external audio codec respectively converts an incoming digital data stream to analog audio output through a mono amplifier and converts the microphone input signal to the digital bit stream over the digital audio interface.
Page 158 SARA-G3 and SARA-U2 series - System Integration Manual Figure 87 describes an application circuit example for connecting the I S digital audio interface of SARA-G340, SARA-G350 and SARA-U2 modules to an external audio voice codec, using the same parts listed in Table 57. ...
Page 159: General Purpose Input/Output (Gpio)
SARA-G3 and SARA-U2 series - System Integration Manual General Purpose Input/Output (GPIO) 2.8.1.1 Guidelines for GPIO circuit design The following application circuits are suggested as a general guideline for the usage of the GPIO pins available with the SARA-G340 / SARA-G350 and SARA-U2 series modules, according to the related custom function. Figure 88 describes an application circuit for a typical usage of some GPIO functions of the modules: ...
Page 160: Reserved Pins (Rsvd)
SARA-G3 and SARA-U2 series - System Integration Manual switch (e.g. Texas Instruments SN74CB3Q16244, TS5A3159, or TS5A63157) between the two-circuit connections and set to high impedance during module power down mode and power-on sequence. It is highly recommended to provide direct access to the GPIO3 pin of SARA-G3 modules product versions “02”...
Page 161: Module Footprint And Paste Mask
SARA-G3 and SARA-U2 series - System Integration Manual 2.11 Module footprint and paste mask Figure 90 and Table 59 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 162: Thermal Guidelines
SARA-G3 and SARA-U2 series - System Integration Manual 2.12 Thermal guidelines SARA-G3 and SARA-U2 series modules operating temperature range and thermal data are specified in the SARA-G3 series Data Sheet [1] or the SARA-U2 series Data Sheet [2]. The most critical condition concerning module thermal performance is the uplink transmission at maximum power (data upload or voice call in connected mode), when the baseband processor runs at full speed, radio circuits are all active and the RF power amplifier is driven to higher output RF power.
Page 163 SARA-G3 and SARA-U2 series - System Integration Manual A few hardware techniques may be used to reduce the Module-to-Ambient thermal resistance in the application:  Connect each GND pin with solid ground layer of the application board and connect each ground area of the multilayer application board with complete via stack down to main ground layer ...
Page 164: Esd Guidelines
SARA-G3 and SARA-U2 series - System Integration Manual 2.13 ESD guidelines Sections 2.13.1 and 2.13.2 are related to EMC / ESD immunity, described in section 2.13.1. The modules are ESD sensitive devices and the ESD sensitivity for each pin (as Human Body Model according to JESD22-A114F) is specified in the SARA-G3 series Data Sheet [1] or the SARA-U2 series Data Sheet [2], requiring special precautions when handling: for ESD handling guidelines see section 3.2.
Page 165: Esd Application Circuits
SARA-G3 and SARA-U2 series - System Integration Manual Table 61 reports the u-blox SARA-G3 and SARA-U2 reference designs ESD immunity test results, according to the CENELEC EN 61000-4-2 [19], ETSI EN 301 489-1 [20], 301 489-52 [21] test requirements. Category Application Immunity Level Remarks...
Page 166 SARA-G3 and SARA-U2 series - System Integration Manual LQG15HN39NJ02) should be implemented at the antenna port as described in Figure 59, Figure 60 and Figure 61, as implemented in the EMC / ESD approved reference design of SARA-U2 modules The antenna interface application circuit implemented in the EMC / ESD approved reference designs of SARA-G3 and SARA-U2 series modules is described in Figure 59 when an antenna detection circuit is not implemented, and is described in Figure 60 and Table 39 when an antenna detection circuit is implemented (section 2.4).
Page 167: Sara-G3 / Sara-U2 Atex Modules Integration In Devices Intended For Use In Potentially Explosive Atmospheres
SARA-G3 and SARA-U2 series - System Integration Manual 2.14 SARA-G3 / SARA-U2 ATEX modules integration in devices intended for use in potentially explosive atmospheres 2.14.1 General guidelines SARA-G340 ATEX, SARA-G350 ATEX, SARA-U201 ATEX and SARA-U270 ATEX modules are certified as components intended for use in potentially explosive atmospheres (see section 4.8 and see the ‘Approvals‘...
Page 168: Guidelines For Vcc Supply Circuit Design
SARA-G3 and SARA-U2 series - System Integration Manual Any specific applicable requirement for the implementation of the apparatus integrating SARA-G340 ATEX, SARA-G350 ATEX, SARA-U201 ATEX or SARA-U270 ATEX module, intended for use in potentially explosive atmospheres, must be fulfilled according to the exact applicable standards: check the detailed requisites on the pertinent norms for the application, as for example the IEC 60079-0 [34], IEC 60079-11 [35], IEC 60079-26 [36] standards.
Page 169 SARA-G3 and SARA-U2 series - System Integration Manual Table 62 lists the maximum input and equivalent parameters that must be considered in sub-division IIC for SARA-G340 ATEX, SARA-G350 ATEX and SARA-U270 ATEX. SARA-G340 ATEX Parameter SARA-U270 ATEX SARA-G350 ATEX 3.8 V 3.8 V 1.6 A (burst) 1.6 A (burst)
Page 170: Guidelines For Antenna Rf Interface Design
SARA-G3 and SARA-U2 series - System Integration Manual Other considerations All the recommendations reported in section 2.14.1 must be considered for the implementation of the VCC supply circuit on application integrating SARA-G340 ATEX, SARA-G350 ATEX, SARA-U201 ATEX or SARA-U270 ATEX modules intended for use in potentially explosive atmospheres. Any specific applicable requirement for the VCC supply circuit design must be fulfilled according to all the exact applicable standards for the apparatus.
Page 171: Schematic For Sara-G3 And Sara-U2 Series Module Integration
2.15 Schematic for SARA-G3 and SARA-U2 series module integration 2.15.1 Schematic for SARA-G300 / SARA-G310 modules integration Figure 91 is an example of a schematic diagram where a SARA-G300 / SARA-G310 module is integrated into an application board, using all the available interfaces and functions of the module.
Page 172: Schematic For Sara-G340 / Sara-G350 Modules Integration
SARA-G3 and SARA-U2 series - System Integration Manual 2.15.2 Schematic for SARA-G340 / SARA-G350 modules integration Figure 92 is an example of a schematic diagram where a SARA-G340 / SARA-G350 module is integrated into an application board, using all the available interfaces and functions of the module. SARA-G340/SARA-G350 External Connector...
Page 173: Schematic For Sara-U2 Series Modules Integration
SARA-G3 and SARA-U2 series - System Integration Manual 2.15.3 Schematic for SARA-U2 series modules integration Figure 93 is an example of a schematic diagram where a SARA-U2 module is integrated into an application board, using all the available interfaces and functions of the module. SARA-U2 series External Connector...
Page 174: Design-In Checklist
SARA-G3 and SARA-U2 series - System Integration Manual 2.16 Design-in checklist This section provides a design-in checklist. 2.16.1 Schematic checklist The following are the most important points for a simple schematic check:  DC supply must provide a nominal voltage at the VCC pin above the minimum operating range limit. ...
Page 175: Layout Checklist
SARA-G3 and SARA-U2 series - System Integration Manual 2.16.2 Layout checklist The following are the most important points for a simple layout check:  Check 50  nominal characteristic impedance of the RF transmission line connected to the ANT pad (antenna RF input/output interface).
Page 176: Handling And Soldering
SARA-G3 and SARA-U2 series - System Integration Manual 3 Handling and soldering No natural rubbers, no hygroscopic materials or materials containing asbestos are employed. Packaging, shipping, storage and moisture preconditioning For information pertaining to reels and tapes, Moisture Sensitivity levels (MSD), shipment and storage information, as well as drying for preconditioning see the SARA-G3 series Data Sheet [1] or the SARA-U2 series Data Sheet [2] and the u-blox Package Information Guide [29].
Page 177: Soldering
SARA-G3 and SARA-U2 series - System Integration Manual Soldering 3.3.1 Soldering paste Use of "No Clean" soldering paste is strongly recommended, as it does not require cleaning after the soldering process has taken place. The paste listed in the example below meets these criteria. Soldering Paste: OM338 SAC405 / Nr.143714 (Cookson Electronics) Alloy specification:...
Page 178: Optical Inspection
SARA-G3 and SARA-U2 series - System Integration Manual To avoid falling off, modules should be placed on the topside of the motherboard during soldering. The soldering temperature profile chosen at the factory depends on additional external factors, such as the choice of soldering paste, size, thickness and properties of the base board, etc.
Page 179: Repeated Reflow Soldering
SARA-G3 and SARA-U2 series - System Integration Manual 3.3.5 Repeated reflow soldering Only a single reflow soldering process is encouraged for boards with a SARA-G3 and SARA-U2 series module populated on it. 3.3.6 Wave soldering Boards with combined through-hole technology (THT) components and surface-mount technology (SMT) devices may require wave soldering to solder the THT components.
Page 180: Approvals
SARA-G3 and SARA-U2 series - System Integration Manual 4 Approvals For the complete list of all the certification schemes approvals of SARA-G3 and SARA-U2 series modules and the corresponding declarations of conformity, see the u-blox web-site (http://www.u-blox.com). 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”...
Page 181: Us Federal Communications Commission Notice
SARA-G3 and SARA-U2 series - System Integration Manual US Federal Communications Commission notice US Federal Communications Commission (FCC) ID:  For SARA-G310 modules: XPYSARAG350  For SARA-G350 modules: XPYSARAG350  For SARA-U201 modules: XPY1CGM5NNN  For SARA-U260 modules: XPYSARAU260  For SARA-U280 modules: XPYSARAU280 4.2.1 Safety warnings review the structure ...
Page 182: Modifications
SARA-G3 and SARA-U2 series - System Integration Manual 4.2.3 Modifications The FCC requires the user to be notified that any changes or modifications made to this device that are not expressly approved by u-blox could void the user's authority to operate the equipment. Manufacturers of mobile or fixed devices incorporating SARA-G310 / SARA-G350 / SARA-U201 / SARA-U260 / SARA-U280 modules are authorized to use the FCC Grants of the SARA-G310 / SARA-G350 / SARA-U201 / SARA-U260 / SARA-U280 modules for their own final products...
Page 183: Modifications
SARA-G3 and SARA-U2 series - System Integration Manual The gain of the system antenna(s) used for SARA-U280 modules (i.e. the combined transmission line, connector, cable losses and radiating element gain) must not exceed 10.0 dBi (850 MHz) and 10.3 dBi (1900 MHz) for mobile and fixed or mobile operating configurations. 4.3.2 Modifications The ISED Canada requires the user to be notified that any changes or modifications made to this device that are not expressly approved by u-blox could void the user's authority to operate the equipment.
Page 184: European Conformance Ce Mark
SARA-G3 and SARA-U2 series - System Integration Manual Avis d'Innovation, Sciences et Développement économique Canada (ISDE) Cet appareil numérique de classe B est conforme aux normes canadiennes CAN ICES-3 (B)/NMB- 3(B) et RSS-210. Son fonctionnement est soumis aux deux conditions suivantes: cet appareil ne doit pas causer d'interférence cet appareil doit accepter toute interférence, notamment les interférences qui peuvent affecter son fonctionnement...
Page 185 SARA-G3 and SARA-U2 series - System Integration Manual The conformity assessment procedure for SARA-G3, SARA-U201 and SARA-U270 modules (except SARA-G340 ATEX, SARA-G350 ATEX, SARA-U201 ATEX and SARA-U270 ATEX modules), referred to in Article 17 and detailed in Annex II of Directive 2014/53/EU, has been followed. Thus, the following marking is included in the product: The conformity assessment procedure for SARA-G340 ATEX, SARA-G350 ATEX, SARA-U201 ATEX and SARA-U270 ATEX modules, referred to in Article 17 and detailed in Annex II of Directive 2014/53/EU, has been...
Page 186: Brazilian Anatel Certification
SARA-G3 and SARA-U2 series - System Integration Manual Brazilian Anatel certification SARA-G310, SARA-G350 and SARA-U201 modules are certified by the Brazilian Agency of Telecommunications (Agência Nacional de Telecomunicações in Portuguese) (Anatel). 03419-13-05903 03420-13-05903 04466-15-05903 Anatel IDs for the SARA-G310 modules: ...
Page 187: Mexican Ift Certification
SARA-G3 and SARA-U2 series - System Integration Manual Mexican IFT certification SARA-U260 module is certified by the Mexican Instituto Federal de Telecomunicaciones (IFT). The IFT number is:  For SARA-U260 module: RTIUBSA15-1982 CERTIFICADO DE HOMOLOGACION Clase: PROVISIONAL IFT Número: RTIUBSA15-1982 Any device integrating SARA-U260 module must declare SARA-U260 IFT number into the user manual of the product.
Page 188: Korean Kcc Certification
SARA-G3 and SARA-U2 series - System Integration Manual Korean KCC certification SARA-U270 module is certified by the Korea Communications Commission (KCC). KCC ID for SARA-U270 modules:  SARA-U270: MSIP-CRM-ULX-SARA-U270 4.10 Taiwanese NCC certification SARA-G340-02, SARA-G350, SARA-U201 and SARA-U270 modules are certified by the Taiwanese National Communications Commission (NCC).
Page 189: Sara-G3 / Sara-U2 Atex Modules Conformance For Use In Explosive Atmospheres
SARA-G3 and SARA-U2 series - System Integration Manual 4.12 SARA-G3 / SARA-U2 ATEX modules conformance for use in explosive atmospheres SARA-G340 ATEX, SARA-G350 ATEX, SARA-U201 ATEX and SARA-U270 ATEX modules are certified as components intended for use in potentially explosive atmospheres compliant to the following standards: ...
Page 190 SARA-G3 and SARA-U2 series - System Integration Manual Table 66 lists the maximum input and equivalent parameters that must be considered in sub-division IIB and IIA for SARA-G340 ATEX, SARA-G350 ATEX, SARA-U201 ATEX and SARA-U270 ATEX (two different configurations are allowed for SARA-U201 ATEX). SARA-G340 ATEX Parameter SARA-U201 ATEX...
Page 191: Product Testing
SARA-G3 and SARA-U2 series - System Integration Manual 5 Product testing u-blox in-series production test u-blox focuses on high quality for its products. All units produced are fully tested. Defective units are analyzed in detail to improve the production quality. This is achieved with automatic test equipment, which delivers a detailed test report for each unit.
Page 192: Go/No Go" Tests For Integrated Devices
SARA-G3 and SARA-U2 series - System Integration Manual  Component assembly on the device; it should be verified that: Communications with host controller can be established The interfaces between the module and device are working Overall RF performance test of the device including the antenna Dedicated tests can be implemented to check the device.
Page 193 SARA-G3 and SARA-U2 series - System Integration Manual Cellular Wideband Antenna Antenna Application SARA-G3 Spectrum Processor SARA-U2 Analyzer Commands Power Meter Application Board Cellular Wideband Antenna Antenna Application SARA-G3 Processor SARA-U2 Commands Signal Generator Application Board Figure 96: Setup with spectrum analyzer and signal generator for radiated measurement This feature allows the measurement of the transmitter and receiver power levels to check component assembly related to the module antenna interface and to check other device interfaces on which RF performance depends.
Page 194 SARA-G3 and SARA-U2 series - System Integration Manual Example of production tests for OEM manufacturer: 1. Trigger TX GMSK burst at low Power Control Level (lower than 15) or a RX measure reporting to check: If ANT pin is soldered If ANT pin is in short circuit If the module was damaged during soldering process or during handling (ESD, mechanical shock…) If antenna matching components on application board are soldered...
Page 195: Appendix
SARA-G3 and SARA-U2 series - System Integration Manual Appendix A Migration between LISA and SARA-G3 modules A.1 Overview Migrating between LISA-U1, LISA-U2, LISA-C2 series and SARA-G3 series module designs is a straight-forward procedure that allows customers to take maximum advantage of their hardware and software investments. The SARA cellular modules (26.0 x 16.0 mm LGA) have a different form factor than the LISA cellular modules (33.2 x 22.4 mm LCC), but the footprint of SARA and LISA modules has been developed to provide pin-to-pin compatibility on the lateral edge of the antenna pin so that each SARA / LISA pin can share the same pad on the...
Page 196: Checklist For Migration
Check the module power-on requirements: Table 67 and relative section summarize differences between SARA-G3 and LISA modules. Check the module requirements to enter low power idle mode: SARA-G300 and SARA-G310 modules require a 32 kHz signal at EXT32K input, which for example can be provided by the 32K_OUT output.
Page 197 SARA-G3 and LISA modules. Check SARA-G3 modules software requirements Not all of the functionalities available with LISA modules are supported by all the SARA-G3 modules versions. SARA-G300 and SARA-G310 modules do not support: Audio interfaces, DDC (I C) interface, Antenna detection interface, GPIOs...
Page 198: Software Migration
SARA-G3 and SARA-U2 series - System Integration Manual A.3 Software migration Software migration between SARA-G3 and LISA cellular modules is a straightforward procedure. Nevertheless there are some differences to be considered with firmware version. Each cellular module supports AT commands according to 3GPP standards: TS 27.007 [11], TS 27.005 [12], TS 27.010 [13] and the u-blox AT command extension.
Page 199: System Functions Interfaces
External 32 kHz input and internal 32 kHz output The EXT32K input and the 32K_OUT output are available only on the SARA-G300 and SARA-G310 modules to provide the 32 kHz reference clock for the Real Time Clock (RTC) timing, used by the module processor to reach the low power idle mode and provide the RTC functions.
Page 200: Antenna Interface
RF interface for Tx/Rx antenna The same compatible external circuit can be implemented for SARA and LISA series ANT pin even if there are some differences in the operating bands frequency ranges, as summarized in Figure 99. SARA-G300 1800 1800...
Page 201: Sim Interface
SARA-G350 modules to provide antenna detection functionality, with a proper connection between the ANT_DET pin and the ANT pin, as described in section 2.4.2. LISA-U2 modules are equipped with internal circuit for antenna detection support. SARA-G300, SARA-G310 and LISA-C2 series modules do not support antenna detection. A.4.4 SIM interface SIM interface The same compatible external circuit can be implemented for SARA and LISA modules: 1.8 V and 3.0 V SIM are...
Page 202: Audio Interfaces
The same compatible external circuit can be implemented for SARA-G340 / SARA-G350 and LISA series: A 1.8 V DDC (I C bus compatible) interface is provided to communicate with u-blox GNSS receivers. SARA-G300, SARA-G310 and LISA-U200-00S modules do not support the DDC (I C) interface. LISA-C2 modules will support the DDC (I C) interface in the upcoming firmware releases.
Page 203: Gpio Pins
Module Status and Operating Mode Indications. The SIM_DET pin provides the SIM detection function on SARA modules rather than the GPIO5 pin as on LISA-U2 series modules. SARA-G300 and SARA-G310 modules do not provide GPIOs. A.4.8 Reserved pins SARA modules RSVD pin 33 must be connected to ground, as does the RSVD pin 5 on LISA modules.
Page 204 Pin Name N° SARA-G3 series N° LISA-C2 series LISA-U1 series LISA-U2 series EXT32K SARA-G300/SARA-G310: Not Available: Not Available: Not Available: 32 kHz input for RTC Internal reference for Internal 32 kHz for RTC Internal 32 kHz for RTC & low power idle mode low power idle mode &...
Page 205 SARA-G3 and SARA-U2 series - System Integration Manual Pin Name N° SARA-G3 series N° LISA-C2 series LISA-U1 series LISA-U2 series SPI_MISO Not Available Not Available 1.8 V, Data output 1.8 V, Data output Driver strength: 2.5 mA Driver strength: 6 mA SPI_SRDY Not Available Not Available...
Page 206 SARA-G3 and SARA-U2 series - System Integration Manual Pin Name N° SARA-G3 series N° LISA-C2 series LISA-U1 series LISA-U2 series I2S1_TXD Not Available Not Available Not Available 1.8 V, Data In PCM / Normal I2S mode Inner pull-down: 150 µA LISA-U200-00S: N.A.
Page 207 SARA-G3 and SARA-U2 series - System Integration Manual Pin Name N° SARA-G3 series N° LISA-C2 series LISA-U1 series LISA-U2 series GPIO9 Not Available Not Available Not Available 1.8 V, configurable GPIO Default: I2S1_WA Driver strength: 1 mA Inner pull-down: 150 µA GPIO10 Not Available Not Available...
Page 208: B Migration Between Sara-G3 And Sara-U2
Table 69 summarizes the interfaces provided by SARA-G3 and SARA-U2 series modules: all the interfaces provided by different modules are electrically compatible, so that the same compatible external circuit can be implemented on the application board. Modules Power Antenna System Serial Audio Other SARA-G300/G310 series • • • • • • • • •...
Page 209: Pin-Out Comparison Between Sara-G3 And Sara-U2
H-level: 2.00 V – 4.70 V H-level: 1.32 V – 2.01 V Reset L-level pulse time: Reset L-level pulse time: 50 ms min (SARA-G350/G340) 50 ms min 3 s min (SARA-G300/G310) RSVD Reserved CODEC_CLK 13 or 26 MHz Output Clock output instead of...
Page 210 SARA-G3 and SARA-U2 series - System Integration Manual SARA-G3 SARA-U2 Pin No Pin Name Description Pin Name Description Remarks for migration GPIO4 / RSVD 1.8 V GPIO / Reserved GPIO4 1.8 V GPIO No functional difference Default: GNSS RTC sharing Default: GNSS RTC sharing Driver strength: 6 mA Driver strength: 6 mA...
Page 211: Schematic For Sara-G3 And Sara-U2 Integration
RSVD / MIC_GND Mount for SARA-G3 modules RSVD / GPIO1 Mount for SARA-U2 modules RSVD / SPK_P Mount for SARA-G300 / SARA-G310 modules RSVD Mount for SARA-G340 / SARA-G350 modules RSVD / SPK_N Mount for SARA-G340 / SARA-G350 / SARA-U2 modules...
Page 212: C Glossary
SARA-G3 and SARA-U2 series - System Integration Manual C Glossary 3GPP 3rd Generation Partnership Project Analog to Digital Converter Application Processor AT Command Interpreter Software Subsystem, or attention Coding Scheme Circuit Switched Data Clear To Send Direct Current Data Carrier Detect Data Communication Equipment Digital Cellular System Display Data Channel interface...
Page 213 SARA-G3 and SARA-U2 series - System Integration Manual Inter-Integrated Circuit interface Inter IC Sound interface Internet Protocol Leadless Chip Carrier Low-Dropout Land Grid Array Low Noise Amplifier Machine-to-Machine Modulation Coding Scheme Not Applicable N.A. Not Available Power Amplifier Pulse Code Modulation Personal Communications Service Pulse Frequency Modulation Power Management Unit...
Page 214: Related Documents
SARA-G3 and SARA-U2 series - System Integration Manual Related documents u-blox SARA-G3 series Data Sheet, Docu No UBX-13000993 u-blox SARA-U2 series Data Sheet, Docu No UBX-13005287 u-blox AT Commands Manual, Docu No UBX-13002752 u-blox LISA-C200 series Data Sheet, Docu No UBX-13000623 u-blox LISA-U1 series Data Sheet, Docu No UBX-13002048 u-blox LISA-U2 series Data Sheet, Docu No UBX-13001734 u-blox LISA-C200 &...
Page 215 SARA-G3 and SARA-U2 series - System Integration Manual [32] BS EN 16062:2011 – Intelligent transport systems – eSafety – eCall high level application requirements [33] ETSI TS 122 101 V8.7.0 – Service aspects; Service principles (3GPP TS 22.101 v.8.7.0 Rel. 8) [34] IEC 60079-0 - Explosive atmospheres, Part 0: Equipment general requirements - 2011-06 [35]...
Page 216: Revision History
(Last revision with old doc number, GSM.G2-HW-12003) 03-Jul-2013 sses Updated status to Advance Information. Added integration description for SARA-G350 ATEX modules. Updated SARA-G300 / SARA- G310 supported features: Circuit Switched Data, GPRS multi-slot class 10, 32K_OUT pin, Current consumption. 08-Aug-2013 lpah Updated status to Preliminary.
Page 217 SARA-G3 and SARA-U2 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 America, Inc. u-blox Singapore Pte. Ltd. u-blox AG Phone: +1 703 483 3180 Phone:...

Ublox SARA-U201 ATEX System Integration Manual

Preface

Contents

2 Design-In

3 Handling and Soldering

4 Approvals

5 Product Testing

Appendix

A Migration between LISA and SARA-G3 Modules

B Migration between SARA-G3 and SARA-U2

C Glossary

Related Documents

Revision History

Quick Links

Need help?

Questions and answers

Related Manuals for Ublox SARA-U201 ATEX

Summary of Contents for Ublox SARA-U201 ATEX

Table of Contents