Ublox SARA-G3 Series Quick setup guide

SARA-G3 series
GSM/GPRS modules
System Integration Manual
Abstract
This document describes the features and the system integration
of SARA-G3 series GSM/GPRS wireless modules.
These modules are complete and cost efficient solutions offering
up to quad-band GSM/GPRS voice and/or data transmission
technology in a compact form factor.
www.u-blox.com
26.0 x 16.0 x 3.0 mm
UBX-13000995 - R06

SARA-G3 series - System Integration Manual
UBX-13000995 - R06
Page 2 of 218
Document Information
Title
SARA-G3 series
Subtitle
GSM/GPRS modules
Document type
System Integration Manual
Document number
UBX-13000995
Revision, date
R06
29-Nov-2013
Document status
Objective Specification
Document status information
Objective
Specification
This document contains target values. Revised and supplementary data will be
published later.
Advance
Information
This document contains data based on early testing. Revised and supplementary data
will be published later.
Early Production
Information
This document contains data from product verification. Revised and supplementary data
may be published later.
Production
Information
This document contains the final product specification.
This document applies to the following products:
Name
Type number
Firmware version
PCN / IN
SARA-G300
SARA-G300-00S-00
08.58
GSM.G2-TN-13007
SARA-G310
SARA-G310-00S-00
08.58
GSM.G2-TN-13007
SARA-G350
SARA-G350-00S-00
08.49
GSM.G2-TN-13002
SARA-G350 ATEX
SARA-G350-00X-00
08.49
GSM.G2-TN-13002

UBX-13000995 Objective Specification Page 3
This document and the use of any information contained therein, is subject to the acceptance of the u-blox terms and conditions.
They can be downloaded from www.u-blox.com.
u-blox makes no warranties based on the accuracy or completeness of the contents of this document and reserves the right to
make changes to specifications and product descriptions at any time without notice.
u-blox reserves all rights to this document and the information contained herein. Reproduction, use or disclosure to third parties
without express permission is strictly prohibited. Copyright © 2013, u-blox AG.
u-blox®is a registered trademark of u-blox Holding AG in the EU and other countries.
Trademark Notice
Microsoft and Windows are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other
countries. All other registered trademarks or trademarks mentioned in this document are property of their respective owners.

SARA-G3 series - System Integration Manual
UBX-13000995 - R06 Objective Specification Preface
Page 4 of 218
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.
AT Commands Manual: This document provides the description of the supported AT commands by the
SARA-G3 series modules to verify all implemented functionalities.
System Integration Manual: This manual provides hardware design instructions and information on how to
set up production and final product tests.
Application Note: document provides general design instructions and information that applies to all u-blox
Wireless modules. See Related documents section for a list of Application Notes related to your
Wireless Module.
How to use this Manual
The SARA-G3 series System Integration Manual provides the necessary information to successfully design
in and configure these u-blox wireless modules.
This manual has a modular structure. It is not necessary to read it from the beginning to the end.
The following symbols are used to highlight important information within the manual:
An index finger points out key information pertaining to module integration and performance.
A warning symbol indicates actions that could negatively impact or damage the module.
Questions
If you have any questions about u-blox Wireless Integration:
Read this manual carefully.
Contact our information service on the homepage http://www.u-blox.com
Read the questions and answers on our FAQ database on the homepage http://www.u-blox.com
Technical Support
Worldwide Web
Our website (www.u-blox.com) is a rich pool of information. Product information, technical documents and
helpful FAQ can be accessed 24h a day.
By E-mail
Contact the nearest of the Technical Support offices by email. Use our service pool email addresses rather
than any personal email address of our staff. This makes sure that your request is processed as soon as
possible. You will find the contact details at the end of the document.

SARA-G3 series - System Integration Manual
UBX-13000995 - R06 Objective Specification Preface
Page 5 of 218
Helpful Information when Contacting Technical Support
When contacting Technical Support, have the following information ready:
Module type (e.g. SARA-G350) and firmware version
Module configuration
Clear description of your question or the problem
A short description of the application
Your complete contact details

SARA-G3 series - System Integration Manual
UBX-13000995 - R06 Objective Specification Contents
Page 6 of 218
Contents
Preface......................................................................................................................................4
Contents ..................................................................................................................................65
1System description.......................................................................................................... 109
1.1 Overview................................................................................................................... 109
1.2 Architecture .............................................................................................................. 1311
1.2.1 Internal blocks..................................................................................................... 1512
1.3 Pin-out ................................................................................................................... 1713
1.4 Operating modes ...................................................................................................... 2317
1.5 Supply interfaces ...................................................................................................... 2619
1.5.1 Module supply input (VCC) ................................................................................ 2619
1.5.2 RTC supply input/output (V_BCKP)...................................................................... 3526
1.5.3 Interfaces supply output (V_INT) .......................................................................... 3627
1.6 System function interfaces .......................................................................................... 3728
1.6.1 Module power-on ............................................................................................... 3728
1.6.2 Module power-off ............................................................................................... 3829
1.6.3 Module reset ..................................................................................................... 3930
1.6.4 External 32 kHz signal input (EXT32K) ................................................................ 4031
1.6.5 Internal 32 kHz signal output (32K_OUT) .............................................................. 4131
1.7 Antenna interface...................................................................................................... 4232
1.7.1 Antenna RF interface (ANT) ............................................................................... 4232
1.7.2 Antenna detection interface (ANT_DET) ................................................................. 4433
1.8 SIM interface ........................................................................................................... 4433
1.8.1 (U)SIM card interface ........................................................................................ 4433
1.8.2 SIM card detection interface (SIM_DET) ................................................................ 4433
1.9 Serial interfaces........................................................................................................ 4634
1.9.1 Asynchronous serial interface (UART).................................................................... 4634
1.9.2 Auxiliary asynchronous serial interface (UART AUX)................................................. 6244
1.9.3 DDC (I2C) interface .......................................................................................... 6244
1.10 Audio interface ...................................................................................................... 6446
1.10.1 Analog audio interface ......................................................................................... 6446
1.10.2 Digital audio interface .......................................................................................... 6748
1.10.3 Voice-band processing system .............................................................................. 6949
1.11 General Purpose Input/Output (GPIO) ...................................................................... 7151
1.12 Reserved pins (RSVD) ......................................................................................... 7453

SARA-G3 series - System Integration Manual
UBX-13000995 - R06 Objective Specification Contents
Page 7 of 218
1.13 System features .................................................................................................... 7554
1.13.1 Network indication ............................................................................................... 7554
1.13.2 Antenna detection ............................................................................................... 7554
1.13.3 Jamming detection .............................................................................................. 7554
1.13.4 TCP/IP and UDP/IP .......................................................................................... 7755
1.13.5 FTP................................................................................................................. 7755
1.13.6 HTTP............................................................................................................... 7755
1.13.7 SMTP .............................................................................................................. 7755
1.13.8 Smart temperature management ............................................................................. 7956
1.13.9 AssistNow clients and GNSS integration .................................................................. 8258
1.13.10 Hybrid positioning and CellLocateTM ..................................................................... 8459
1.13.11 Firmware upgrade Over AT (FOAT) .................................................................. 8661
1.13.12 Firmware upgrade Over The Air (FOTA) ............................................................ 8761
1.13.13 In-Band modem (eCall / ERA-GLONASS) ........................................................ 8862
1.13.14 Power saving.................................................................................................. 8862
2Design-in...................................................................................................................... 9063
2.1 Supply interfaces ...................................................................................................... 9164
2.1.1 Module supply (VCC) ........................................................................................ 9164
2.1.2 RTC supply (V_BCKP) .....................................................................................10072
2.1.3 Interface supply (V_INT) ...................................................................................10374
2.2 System functions interfaces ........................................................................................10575
2.2.1 Module power-on (PWR_ON).............................................................................10575
2.2.2 Module reset (RESET_N) ..................................................................................10776
2.2.3 32 kHz signal (EXT32K and 32K_OUT) ..............................................................10977
2.3 Antenna interface......................................................................................................11179
2.3.1 Antenna RF interface (ANT) ...............................................................................11179
2.3.2 Antenna detection interface (ANT_DET) ................................................................ 11784
2.4 SIM interface ..........................................................................................................12087
2.5 Serial interfaces....................................................................................................... 12994
2.5.1 Asynchronous serial interface (UART)................................................................... 12994
2.5.2 Auxiliary asynchronous serial interface (UART AUX)................................................ 13397
2.5.3 DDC (I2C) interface ......................................................................................... 13599
2.6Audio Interface.......................................................................................................139102
2.6.1 Analog Audio interface.......................................................................................139102
2.6.2 Digital Audio interface........................................................................................147108
2.7 General Purpose Input/Output (GPIO) ......................................................................149109
2.8 Reserved pins (RSVD) ........................................................................................... 151111
2.9 Module placement .................................................................................................... 151111

SARA-G3 series - System Integration Manual
UBX-13000995 - R06 Objective Specification Contents
Page 8 of 218
2.10 Module footprint and paste mask............................................................................ 152112
2.11 Thermal guidelines ............................................................................................... 154113
2.12 ESD guidelines ................................................................................................... 156115
2.12.1 ESD immunity test overview ............................................................................... 156115
2.12.2 ESD immunity test of u-blox SARA-G3 series reference designs .............................. 156115
2.12.3 ESD application circuits...................................................................................... 157116
2.13 SARA-G350 ATEX integration in explosive atmospheres applications.............................. 160118
2.13.1 General guidelines ............................................................................................ 160118
2.13.2 Guidelines for VCC supply circuit design ................................................................161119
2.13.3 Guidelines for antenna RF interface design............................................................163120
2.14 Schematic for SARA-G3 series module integration ..................................................... 164121
2.15 Design-in checklist ..............................................................................................168123
2.15.1 Schematic checklist ...........................................................................................168123
2.15.2 Layout checklist................................................................................................170124
2.15.3 Antenna checklist..............................................................................................170124
3Handling and soldering ............................................................................................. 171125
3.1 Packaging, shipping, storage and moisture preconditioning............................................... 171125
3.2 Soldering .............................................................................................................. 171125
3.2.1 Soldering paste ................................................................................................ 171125
3.2.2 Reflow soldering ............................................................................................... 171125
3.2.3 Optical inspection..............................................................................................174127
3.2.4 Cleaning .........................................................................................................174127
3.2.5 Repeated reflow soldering...................................................................................174127
3.2.6 Wave soldering ................................................................................................174127
3.2.7 Hand soldering.................................................................................................174127
3.2.8 Rework...........................................................................................................174127
3.2.9 Conformal coating .............................................................................................175127
3.2.10 Casting...........................................................................................................176128
3.2.11 Grounding metal covers .....................................................................................176128
3.2.12 Use of ultrasonic processes ................................................................................176128
4Approvals .................................................................................................................. 177129
4.1 Product certification approval overview .........................................................................177129
4.2 Federal Communications Commission and Industry Canada notice .....................................179130
4.2.1 Safety Warnings review the structure ....................................................................179130
4.2.2 Declaration of Conformity –United States only.......................................................179130
4.2.3 Modifications ....................................................................................................179130
4.3 R&TTED and European Conformance CE mark ............................................................ 181132

SARA-G3 series - System Integration Manual
UBX-13000995 - R06 Objective Specification Contents
Page 9 of 218
4.4 Anatel certification...................................................................................................182132
4.5 SARA-G350 ATEX conformance for use in explosive atmospheres...................................183134
5Product Testing ......................................................................................................... 184135
5.1 u-blox in-series production test ................................................................................184135
5.2 Test parameters for OEM manufacturer .......................................................................184135
5.2.1 “Go/No go” tests for integrated devices ..............................................................185136
5.2.2 Functional tests providing RF operation .................................................................185136
Appendix ......................................................................................................................... 188139
AMigration between LISA and SARA-G3 modules...................................................... 188139
A.1 Overview...............................................................................................................188139
A.2 Checklist for migration .............................................................................................189140
A.3 Software migration ...................................................................................................191141
A.4 Hardware migration ..................................................................................................191141
A.4.1 Supply interfaces ...............................................................................................191141
A.4.2 System functions interfaces .................................................................................193142
A.4.3 Antenna interface..............................................................................................195143
A.4.4 SIM interface ...................................................................................................197144
A.4.5 Serial interfaces................................................................................................197144
A.4.6 Audio interfaces................................................................................................198145
A.4.7 GPIO pins ......................................................................................................199145
A.4.8 Reserved pins..................................................................................................199145
A.4.9 Pin-out comparison between LISA and SARA ....................................................... 200146
BMigration between SARA-G3 and SARA-U2 ........................................................... 206151
B.1 Overview...............................................................................................................206151
B.2 Pin-out comparison between SARA-G3 and SARA-U2................................................. 207152
B.3 Schematic for SARA-G3 and SARA-U2 integration...................................................... 209153
CGlossary.................................................................................................................... 210154
Related documents.......................................................................................................... 213156
Revision history............................................................................................................... 215157
Contact ............................................................................................................................ 217159

SARA-G3 series - System Integration Manual
UBX-13000995 - R06 Objective Specification System description
Page 10 of 218
1System description
1.1 Overview
SARA-G3 series are versatile 2.5G GSM/GPRS wireless modules in a miniature LGA (Land Grid Array)
form factor.
SARA-G350 is a full feature quad-band GSM/GPRS wireless module with a comprehensive feature set
including an extensive set of internet protocols. SARA-G350 also provides fully integrated access to u-blox
GNSS positioning chips and modules, with embedded A-GPS (AssistNow Online and AssistNow Offline)
functionality.
SARA-G310 and SARA-G300 are respectively quad-band and dual-band GSM/GPRS wireless 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.
SARA-G3 wireless modules are certified and approved by the main regulatory bodies and operators, and
RIL software for Android and Embedded Windows are available free of charge. SARA-G3 modules are
manufactured in ISO/TS 16949 certified sites. Each module is tested and inspected during production. The
modules are qualified according to ISO 16750 –Environmental conditions and electrical testing for electrical
and electronic equipment for road vehicles.
Table 1Table 1 describes a summary of interfaces and features provided by SARA-G3 modules.