Ublox EVK-G31 User manual

EVK-G31, EVK-G35
SARA-G310, SARA-G350
GSM/GPRS
Cellular evaluation kit
User Guide
Abstract
This guide explains how to set up the EVK-G31 and EVK-G35
Evaluation Kits to begin evaluating the u-blox SARA-G310 and
SARA-G350 GSM/GPRS cellular modules.
www.u-blox.com
UBX-13001792 - R06

EVK-G31, EVK-G35 - User Guide
UBX-13001792 - R06
Page 2 of 22
Document Information
Title
EVK-G31, EVK-G35
Subtitle
SARA-G310, SARA-G350
GSM/GPRS
Cellular evaluation kit
Document type
User Guide
Document number
UBX-13001792
Revision, date
R06
14-Dec-2015
Document status
Early Production Information
Document status explanation
Objective Specification
Document contains target values. Revised and supplementary data will be published later.
Advance Information
Document contains data based on early testing. Revised and supplementary data will be published later.
Early Production Information
Document contains data from product verification. Revised and supplementary data may be published later.
Production Information
Document contains the final product specification.
This document applies to the following products:
Name
Type number
Firmware version
PCN / IN
EVK-G31
EVK-G31-00S-01
N/A
N/A
EVK-G35
EVK-G35-00S-01
N/A
N/A
EVK-G35-02S-00
N/A
N/A
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. Reproduction, use, modification or disclosure to third parties of this document or
any part thereof without the express permission of u-blox is strictly prohibited.
The information contained herein is provided “as is” and u-blox assumes no liability for the use of the information. No warranty, either
express or implied, is given, including but not limited, with respect to the accuracy, correctness, reliability and fitness for a particular purpose
of the information. This document may be revised by u-blox at any time. For most recent documents, visit www.u-blox.com.
Copyright © 2015, 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.

EVK-G31, EVK-G35 - User Guide
UBX-13001792 - R06 Early Production Information Contents
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Contents
Contents..............................................................................................................................3
1Starting up....................................................................................................................4
1.1 EVK-G3x overview ................................................................................................................................ 4
1.2 EVK-G3x block diagram........................................................................................................................ 5
1.3 Switches, jumpers and buttons ............................................................................................................. 5
1.4 LEDs ..................................................................................................................................................... 6
1.5 Connectors........................................................................................................................................... 6
1.6 EVK-G35 pinout ................................................................................................................................... 7
1.7 EVK-G31 pinout ................................................................................................................................... 9
1.8 Software installation........................................................................................................................... 10
1.9 Board setup and settings .................................................................................................................... 10
1.10 Enabling error result codes.............................................................................................................. 12
1.11 PIN code insertion (when required).................................................................................................. 12
1.12 Registration on a cellular network................................................................................................... 12
1.13 Switching off the EVK-G3x.............................................................................................................. 12
Appendix ..........................................................................................................................13
ASetting up AT terminal applications for communication with EVK-G3x ................13
BSetting up cellular packet data connection on PC....................................................14
B.1 Install a new modem from the control panel ...................................................................................... 14
B.2 Configuring a new connection ........................................................................................................... 16
CExamples of AT commands........................................................................................17
C.1 Incoming voice call ............................................................................................................................. 17
C.2 Outgoing voice call............................................................................................................................. 17
C.3 Data call (CSD mode).......................................................................................................................... 17
C.4 SMS management .............................................................................................................................. 18
C.5 Internet connection in GPRS mode (using external TCP/IP stack) ......................................................... 18
C.6 Internet connection in GPRS mode (using internal TCP/IP stack).......................................................... 18
C.7 Enable communication between cellular and GNSS modules .............................................................. 19
C.8 Read NMEA messages (example: GLL)................................................................................................. 19
C.9 GNSS AssistNow online ...................................................................................................................... 19
C.10 GNSS AssistNow offline .................................................................................................................. 19
DCurrent consumption measurement .........................................................................20
Declaration of conformities.............................................................................................21
Related documents ..........................................................................................................21
Revision history................................................................................................................21
Contact..............................................................................................................................22

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1Starting up
1.1 EVK-G3x overview
The EVK-G31 and EVK-G35 are powerful and easy-to-use tools that simplify the evaluation of u-blox SARA-G310
and SARA-G350 GSM/GPRS cellular modules.
The evaluation kits differ depending on which SARA-G3 series module version is mounted:
SARA-G310 module is provided on the EVK-G31 evaluation kit
SARA-G350 module is provided on the EVK-G35 evaluation kit
This document identifies both evaluation kits as EVK-G3x.
This section describes the main connections and settings required to get started.
EVK-G3x can also be used to evaluate other SARA-G3 series modules as SARA-G300 and SARA-G340.
See the SARA-G3 series Data Sheet [3] and the SARA-G3 / SARA-U2 series System Integration Manual [4]
for the features supported by SARA-G3 series modules.
SIM card holder
J300
Cellular reset
SW303
Cellular power-on
SW302
GND
9 –18 V
Power input
J400
Cellular
adapter board
DL400
Main power switch
SW400
DL401
Cellular
antenna connector
J100
SARA-G3
cellular module
DIL B2B connector
J400
DIL B2B connector
J401
GND
GNSS
antenna connector
J103
GNSS module
GNSS
adapter board
Cellular VCC
supply jumper
J404
Cellular USB
(UART / UART AUX)
J501
Cellular RS232
(UART)
J500
DL501DL403 DL405
GNSS USB
J102
SW403
SW401
DL404
SW300
SW304
SW204
SW510
Headset jack
J303
DS132
DS118DS124
DS121
DS107
DS105
DS109
DS103
DS501
DS500
GND
GND
DL503
Figure 1: EVK-G3x evaluation kit overview

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1.2 EVK-G3x block diagram
Figure 2 shows the main interfaces and internal connections of the EVK-G3x:
SIM
card holder
(J300)
Reset
(SW303)
Power-on
(SW302)
Cellular adapter board
SARA-G3
module
42-pin DIL B2B connector (J401) 42-pin DIL B2B connector (J400)
EVB-WL3
GNSS
module
GNSS adapter board
RF
USB
UART / UART AUX
converter
Cellular USB
(UART / UART AUX)
(J501)
Cellular RS232
(UART)
(J500)
RS232
UART
converter UART
MiniUSB/DB9
switch
(SW403)
On-Board/B2B
switch
(SW401)
USB
Headset jack
(J303)
I2C
Cellular
antenna
(J100)
Step - Down
Main power switch
(SW400)
12 V
(J400)
3.8 V
VCC jumper
(J404)
LDO
GPIO2/3/4
GNSS switch
(SW304)
UART AUX
UART AUX switch
(SW510)
Figure 2: EVK-G3x block diagram
The EVK-G3x is formed by three boards:
The lower one, called EVB-WL3, contains the power supply and other peripherals for the SARA-G series
cellular module (SIM card holder, reset button and power-on button).
The cellular adapter board, called ADP-G310 or ADP-G350, contains the SARA-G310 or the SARA-G350
cellular module, the cellular antenna connector.
The GNSS adapter board, called ADP-GNSS, contains the u-blox GNSS module, the LDO supply regulator,
the GNSS antenna connector, and the USB connector for the GNSS module
The boards are connected by means of male header board-to-board connectors mounted on the bottom side of
the adapter boards and their corresponding female connectors mounted on the top side of the EVB-WL3 board.
The cellular module’s interfaces are accessible on the Dual-In-Line male header connectors mounted on the top
side of the cellular adapter board (J400, J401), providing the same pin-out of the corresponding connectors
mounted on the adapter board’s bottom side and the corresponding ones mounted on the EVB-WL3 board’s top
side.
1.3 Switches, jumpers and buttons
Function
Description
Name
Board
Main Power Switch
Switch to power on / off the whole evaluation kit
SW400
EVB
Cellular VCC
Jumper socket to provide the 3.8 V supply to the cellular module VCC input
J404
EVB
Cellular Power-on
Push button to switch-on the cellular module
SW302
EVB
Cellular Reset
Push button to reset the cellular module
SW303
EVB
Cellular UART detach
Slide switch to attach / detach cellular module UART from USB and RS232 connectors:
when detached, UART signals available only on the DIL B2B connector on ADP board
SW401
EVB
Cellular UART routing
Slide switch to select cellular module UART routing on USB or on RS232 connector
SW403
EVB
Cellular UART AUX detach
Slide switch to attach / detach cellular module UART AUX from USB connector: when
detached, UART AUX signals available only on the DIL B2B connector on ADP board
SW510
EVB
Cellular GPIO detach
Slide switch to attach / detach the cellular module GPIOs, SIM_DET from peripherals:
when detached, the signals are available only on the DIL B2B connector on ADP board
SW300
EVB
Cellular GNSS detach
Slide switch to attach / detach the cellular module to the GNSS module (GPIO2-3-4):
when detached, the signals are available only on DIL B2B connector on ADP board
SW304
EVB
GNSS V_BCKP
Slide switch to connect / disconnect backup battery to V_BCKP pin of GNSS module
SW204
EVB
Table 1: EVK-G3x switches and buttons description

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1.4 LEDs
Function
Description
LED #
Board
Color
Main Power
Power supply plugged in the 9 - 18 V Power Input
DL401
EVB
Cellular VCC supply
Cellular module supplied. Main Power Switch must be switched on
DL400
EVB
Cellular USB
USB cable plugged in Cellular USB connector for UART / UART AUX access
DL501
EVB
Cellular USB / UART
Green light is activated when UART is routed to Cellular USB connector
Red light blinks at UART TX or RX data on Cellular USB connector
DL403
EVB
Cellular RS232 / UART
Green light is activated when UART is routed to Cellular RS232 connector
Red light blinks at UART TX or RX data on Cellular RS232 connector
DL405
EVB
Cellular UART detach
UART signals are available only on the DIL B2B connector on ADP board
DL404
EVB
Cellular UART AUX
Green light is activated when UART AUX routed to Cellular USB connector
Red light blinks at UART AUX TX or RX data on Cellular USB connector
DL503
EVB
Cellular RI indicator
RI line turns ON (active low)
DS501
EVB
Cellular CTS indicator
CTS line turns ON (active low)
DS500
EVB
Cellular GPIO1 indicator
Green light is activated when cellular GPIO1 is high
DS107
EVB
Cellular GPIO2 indicator
Green light is activated when cellular GPIO2 is high
DS105
EVB
Cellular GPIO3 indicator
Green light is activated when cellular GPIO3 is high
DS109
EVB
Cellular GPIO4 indicator
Green light is activated when cellular GPIO4 is high
DS103
EVB
GNSS VCC supply
GNSS module supply is turned ON
DS118
ADP-GNSS
GNSS USB
USB cable plugged in GNSS USB connector
DS124
ADP-GNSS
GNSS Timepulse
Pulses at 1 Hz when valid GNSS fix
DS121
ADP-GNSS
Cellular / GNSS DDC
Cellular / GNSS module communication over DDC (I2C) interface
DS132
ADP-GNSS
Table 2: EVK-G3x LEDs description
1.5 Connectors
Function
Description
Name
Board
9 - 18 V Power Input
Connector for the AC / DC power adapter of the EVK
AC: 100-240 V, 0.8 A, 50-60 Hz / DC: +12 V, 2.5 A
IEC 60417-5172
Class II equipment
J400
EVB
Cellular antenna
SMA connector for the cellular module antenna
J100
ADP-G3xx
SIM card holder
SIM card holder
J300
EVB
Cellular USB (UART / AUX)
Mini USB connector for cellular module UART / UART AUX converted as USB
J501
EVB
Cellular RS232 (UART)
DB9 connector for cellular module UART interface converted as RS232 interface
J500
EVB
Cellular headset
Audio headset jack connector for cellular module audio interface
J303
EVB
DIL B2B headers
Dual-In-Line Board-to-Board connectors for cellular module interfaces
J400, J401
ADP-G3xx
GNSS antenna
SMA connector for the GNSS module antenna (GNSS Antenna)
J103
ADP-GNSS
GNSS USB
Mini USB connector for GNSS module USB interface
J102
ADP-GNSS
GNSS backup battery
Backup battery socket for the GNSS module (under GNSS adapter board)
BT200
EVB
GND
Ground terminals for probe reference
J402/3/5/6
EVB
Table 3: EVK-G3x connectors description
Caution! In the unlikely event of a failure in the internal protection circuitry there is a risk of an
explosion when charging fully or partially discharged battery. Replace battery when it no
longer has sufficient charge for unit operation. Control the battery before use if the device has
not been used for an extended period of time.
Caution! Risk of explosion if battery is replaced with an incorrect type. Dispose of used
batteries according to the instructions!

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1.6 EVK-G35 pinout
DIL B2B connector
Name/Pin Number
SARA-G350
Signal Name
SARA-G350
Pin N°
SARA-G350
Pin N°
SARA-G350
Signal Name
DIL B2B connector
Name/Pin Number
J401 Pins 7-8-9-10
GND
1
64
GND
J401 Pins 7-8-9-10
J401 Pin 3
V_BCKP
2
63
GND
J401 Pins 7-8-9-10
J401 Pins 7-8-9-10
GND
3
62
ANT_DET1
J400 Pin 36
J401 Pin 36
V_INT
4
61
GND
J401 Pins 7-8-9-10
J401 Pins 7-8-9-10
GND
5
60
GND
J401 Pins 7-8-9-10
J401 Pins 18
DSR
6
59
GND
J401 Pins 7-8-9-10
J401 Pins 17
RI
7
58
GND
J401 Pins 7-8-9-10
J401 Pins 11
DCD
8
57
GND
J401 Pins 7-8-9-10
J401 Pin 12
DTR
9
56
ANT
Not available
J401 Pin 13
RTS
10
55
GND
J401 Pins 7-8-9-10
J401 Pin 14
CTS
11
54
GND
J401 Pins 7-8-9-10
J401 Pin 15
TXD
12
53
VCC
J400 Pins 7-8-9-10
J401 Pin 16
RXD
13
52
VCC
J400 Pins 7-8-9-10
J401 Pins 7-8-9-10
GND
14
51
VCC
J400 Pins 7-8-9-10
J401 Pin 29
PWR_ON
15
50
GND
J401 Pins 7-8-9-10
J401 Pin 33
GPIO1
16
49
MIC_P
J400 Pins 28
J401 Pin 28
RSVD
17
48
MIC_N
Not available
J400 Pin 26
RESET_N
18
47
MIC_GND
J400 Pin 27
J401 Pin 24
RSVD
19
46
MIC_BIAS
Not available
J401 Pins 7-8-9-10
GND
20
45
SPK_N
J400 Pin 34
J401 Pins 7-8-9-10
GND
21
44
SPK_P
J400 Pin 33
J401 Pins 7-8-9-10
GND
22
43
GND
J401 Pins 7-8-9-10
J401 Pin 31
GPIO2
23
42
SIM_DET
J401 Pin 23
J401 Pin 32
GPIO3
24
41
VSIM
J400 Pin 13
J401 Pins 25
GPIO4
25
40
SIM_RST
J400 Pin 16
J400 Pin 21
SDA
26
39
SIM_IO
J400 Pin 14
J400 Pin 20
SCL
27
38
SIM_CLK
J400 Pin 15
J401 Pin 20
RXD_AUX
28
37
I2S_RXD
J400 Pin 23
J401 Pin 19
TXD_AUX
29
36
I2S_CLK
J400 Pin 22
J401 Pins 7-8-9-10
GND
30
35
I2S_TXD
J400 Pin 24
Not available
RSVD
31
34
I2S_WA
J400 Pin 25
J401 Pins 7-8-9-10
GND
32
33
RSVD
Not available
Table 4: Interfaces of SARA-G350 modules, as routed on the 42-pin Dual-In-Line Board-to-Board connectors (J400, J401) available
on the adapter board ADP-G350 of the EVK-G35 evaluation kit
1SARA-G350 ANT_DET pin connected to the J400 Pin 36 with 18 kseries resistor and the antenna detection circuit mounted on ADP-G350

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DIL B2B J401
DIL B2B J400
Signal Name
Pin N°
Pin N°
Signal Name
Signal Name
Pin N°
Pin N°
Signal Name
Not connected
2
1
GND
Not connected
2
1
GND
Not connected
4
3
V_BCKP
Not connected
4
3
Not connected
Not connected
6
5
Not connected
Not connected
6
5
Not connected
GND
8
7
GND
VCC
8
7
VCC
GND
10
9
GND
VCC
10
9
VCC
DTR
12
11
DCD
Not connected
12
11
Not connected
CTS
14
13
RTS
SIM_IO
14
13
VSIM
RXD
16
15
TXD
SIM_RST
16
15
SIM_CLK
DSR
18
17
RI
Not connected
18
17
Not connected
RXD_AUX
20
19
TXD_AUX
SCL
20
19
Not connected
Not connected
22
21
GND
I2S_CLK
22
21
SDA
RSVD_#19
24
23
SIM_DET
I2S_TXD
24
23
I2S_RXD
Not connected
26
25
GPIO4
RESET_N
26
25
I2S_WA
RSVD_#17
28
27
Not connected
MIC_P_BIAS2
28
27
MIC_GND
Not connected
30
29
PWR_ON
Not connected
30
29
Not connected
GPIO3
32
31
GPIO2
Not connected
32
31
Not connected
Not connected
34
33
GPIO1
SPK_N
34
33
SPK_P
V_INT
36
35
Not connected
ANT_DET3
36
35
Not connected
Not connected
38
37
Not connected
Not connected
38
37
Not connected
Not connected
40
39
Not connected
Not connected
40
39
Not connected
GND
42
41
GND
GND
42
41
Not connected
Table 5: Pin-out of the 42-pin Dual-In-Line Board-to-Board connectors (J401, J400) available on the adapter board ADP-G350 of
the EVK-G35 evaluation kit for SARA-G350 modules
2Signal and bias line for an external electret microphone: biasing bridge circuit mounted on ADP-G350
3SARA-G350 ANT_DET pin connected to the J400 Pin 36 with 18 kseries resistor and the antenna detection circuit mounted on ADP-G350

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1.7 EVK-G31 pinout
DIL B2B connector
Name/Pin Number
SARA-G310
Signal Name
SARA-G310
Pin N°
SARA-G310
Pin N°
SARA-G310
Signal Name
DIL B2B connector
Name/Pin Number
J401 Pins 7-8-9-10
GND
1
64
GND
J401 Pins 7-8-9-10
J401 Pin 3
V_BCKP
2
63
GND
J401 Pins 7-8-9-10
J401 Pins 7-8-9-10
GND
3
62
RSVD
Not available
J401 Pin 36
V_INT
4
61
GND
J401 Pins 7-8-9-10
J401 Pins 7-8-9-10
GND
5
60
GND
J401 Pins 7-8-9-10
J401 Pins 18
DSR
6
59
GND
J401 Pins 7-8-9-10
J401 Pins 17
RI
7
58
GND
J401 Pins 7-8-9-10
J401 Pins 11
DCD
8
57
GND
J401 Pins 7-8-9-10
J401 Pin 12
DTR
9
56
ANT
Not available
J401 Pin 13
RTS
10
55
GND
J401 Pins 7-8-9-10
J401 Pin 14
CTS
11
54
GND
J401 Pins 7-8-9-10
J401 Pin 15
TXD
12
53
VCC
J400 Pins 7-8-9-10
J401 Pin 16
RXD
13
52
VCC
J400 Pins 7-8-9-10
J401 Pins 7-8-9-10
GND
14
51
VCC
J400 Pins 7-8-9-10
J401 Pin 29
PWR_ON
15
50
GND
J401 Pins 7-8-9-10
J401 Pin 33
RSVD
16
49
RSVD
Not available
J401 Pin 28
RSVD
17
48
RSVD
Not available
J400 Pin 26
RESET_N
18
47
RSVD
Not available
J401 Pin 24
RSVD
19
46
RSVD
Not available
J401 Pins 7-8-9-10
GND
20
45
RSVD
Not available
J401 Pins 7-8-9-10
GND
21
44
RSVD
Not available
J401 Pins 7-8-9-10
GND
22
43
GND
J401 Pins 7-8-9-10
J401 Pin 31
RSVD
23
42
SIM_DET
J401 Pin 23
J401 Pin 32
32K_OUT
24
41
VSIM
J400 Pin 13
J401 Pins 25
RSVD
25
40
SIM_RST
J400 Pin 16
J400 Pin 21
RSVD
26
39
SIM_IO
J400 Pin 14
J400 Pin 20
RSVD
27
38
SIM_CLK
J400 Pin 15
J401 Pin 20
RXD_AUX
28
37
RSVD
J400 Pin 23
J401 Pin 19
TXD_AUX
29
36
RSVD
J400 Pin 22
J401 Pins 7-8-9-10
GND
30
35
RSVD
J400 Pin 24
Not available
EXT32K
31
34
RSVD
J400 Pin 25
J401 Pins 7-8-9-10
GND
32
33
RSVD
Not available
Table 6: SARA-G310 module interfaces availability on the 42-pins Dual-In-Line Board-to-Board connectors on the adapter board

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DIL B2B J401
DIL B2B J400
Signal Name
Pin N°
Pin N°
Signal Name
Signal Name
Pin N°
Pin N°
Signal Name
Not connected
2
1
GND
Not connected
2
1
GND
Not connected
4
3
V_BCKP
Not connected
4
3
Not connected
Not connected
6
5
Not connected
Not connected
6
5
Not connected
GND
8
7
GND
VCC
8
7
VCC
GND
10
9
GND
VCC
10
9
VCC
DTR
12
11
DCD
Not connected
12
11
Not connected
CTS
14
13
RTS
SIM_IO
14
13
VSIM
RXD
16
15
TXD
SIM_RST
16
15
SIM_CLK
DSR
18
17
RI
Not connected
18
17
Not connected
RXD_AUX
20
19
TXD_AUX
RSVD_#27
20
19
Not connected
Not connected
22
21
GND
RSVD_#36
22
21
RSVD_#26
RSVD_#19
24
23
SIM_DET
RSVD_#35
24
23
RSVD_#37
Not connected
26
25
RSVD_#25
RESET_N
26
25
RSVD_#34
RSVD_#17
28
27
Not connected
Not connected
28
27
Not connected
Not connected
30
29
PWR_ON
Not connected
30
29
Not connected
32K_OUT
32
31
RSVD_#23
Not connected
32
31
Not connected
Not connected
34
33
RSVD_#16
Not connected
34
33
Not connected
V_INT
36
35
Not connected
Not connected
36
35
Not connected
Not connected
38
37
Not connected
Not connected
38
37
Not connected
Not connected
40
39
Not connected
Not connected
40
39
Not connected
GND
42
41
GND
GND
42
41
Not connected
Table 7: Pin-out of the 42-pin Dual-In-Line Board-to-Board connectors (J401, J400) available on the adapter board ADP-G310 of
the EVK-G31 evaluation kit for SARA-G310 modules
The pins / interfaces that are not supported by a specific SARA-G3 module product version should be not
driven by an external device (see the SARA-G3 series Data Sheet [3] and SARA-G3 and SARA-U2 series
System Integration Manual [4] for the features supported by each SARA-G3 module product version).
1.8 Software installation
The USB driver can be downloaded from the Web; see the EVK-G3x Quick Start card [5] for the URL. Save the
executable file to any location of the hard drive on the computer. The installation can be started by running the
executable file on the computer running the Windows operating system.
1.9 Board setup and settings
1Insert a SIM card into the SIM card holder (J300).
2Connect the cellular antenna provided with the evaluation kit box to the Cellular antenna SMA connector
(J100 on ADP-G3xx, RF input/output for transmission and reception of 2G RF signals).

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3If the GNSS functionality is required, connect the GNSS antenna provided with the evaluation kit box to the
GNSS antenna SMA connector (J103 on ADP-GNSS). Put the GNSS antenna in a place with good sky view.
4Connect the AC / DC +12 V power adapter provided with the Evaluation Kit box to 9 –18 V Power Input
connector (J400 on EVB). LED DL401 lights blue.
5Be sure to provide a jumper socket on the Cellular VCC supply jumper (J404). This provides connection
from the 3.8 V output of the supply circuit on the EVB to the VCC input of the module.
6To enable the whole board power supply, turn the Main Power switch (SW400 on EVB) to ON position.
LED DL400 lights green. The cellular module switches on.
7For communication via UART interface of the cellular module, the following connections are allowed and
can be alternatively enabled in a mutually exclusive way (see Table 8 for switch position and LED status):
a. Connect a USB cable to mini USB connector (Cellular USB, J501 on EVB), LED DL501 lights blue
b. Connect an RS232 cable to DB9 connector (Cellular RS232, J500 on EVB)
Type of connections
SW401
SW403
LED
Access to cellular UART over the Cellular USB (UART) mini USB connector (J501)
ON BOARD
MINIUSB
DL403
Access to cellular UART over the Cellular RS232 (UART) DB9 connector (J500)
ON BOARD
DB9
DL405
Access to cellular UART on DIL Board-to-Board connector on the adapter board:
cellular UART detached from USB (UART) J501 and RS232 (UART) J500 connectors
B2B
Do not care
DL404
Table 8: Serial interface configuration
Using the Cellular USB connector (case a), two COM ports are enabled with Windows (the numbering of
the COM ports can be seen via the Windows Device Manager)4:
oSARA UART (by default for AT commands and data) is available over the first COM port
oSARA UART AUX (by default for FW update and diagnostic) is available over the second COM port
8Run an AT terminal application (e.g. m-center, HyperTerminal) on PC COM-port, with these settings:
oData rate: 115200 b/s
oData bits: 8
oParity: N
oStop bits: 1
oFlow control: HW
See Appendix A for how to configure the u-blox m-center AT terminal for Windows.
9Connect the headset provided with the evaluation kit box to the Headset jack connector (J303 on EVB), if
the audio functionality is required.
4For the possible alternative configurations and services available over UART and UART AUX interfaces of SARA-G3 series modules see the u-
blox AT commands Manual [1], +USIO AT command

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1.10Enabling error result codes
Command sent by DTE (user)
DCE response (module)
Description
AT+CMEE=2
OK
Enables the cellular module to report verbose error result codes.
1.11PIN code insertion (when required)
Command sent by DTE (user)
DCE response (module)
Description
AT+CPIN=”8180”
OK
Enter the PIN code, if needed (enter the PIN of the SIM card –8180 is
written here as an example).
AT+CLCK="SC",0,"8180"
OK
Unlock the PIN at power on (the last parameter is the PIN of the SIM card
–8180 is written here as an example).
AT+CLCK="SC",1,"8180"
OK
Lock the PIN at power on (the last parameter is the PIN of the SIM card –
8180 is written here as an example).
1.12Registration on a cellular network
Command sent by DTE (user)
DCE response (module)
Description
AT+CREG?
+CREG: 0, 1
OK
Verify the network registration.
AT+COPS=0
OK
Register the phone on the network.
The cellular module automatically registers itself on the cellular network.
This command is necessary only if the automatic registration failed
(AT+CREG? returns 0,0).
AT+COPS?
+COPS: 0,0,”I TIM”
OK
Read operator name.
1.13Switching off the EVK-G3x
To switch off the EVK-G3x, send the AT+CPWROFF command. Make sure to use this command before switching
off the main power, otherwise settings and configuration parameters may not be saved on the EVK-G3x.

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Appendix
ASetting up AT terminal applications for
communication with EVK-G3x
The u-blox m-center cellular module evaluation tool is a powerful platform for evaluating, configuring and
testing u-blox cellular products. m-center includes an AT commands terminal for communication with the device
and can be downloaded free-of-charge from our website (http://www.u-blox.com).
1. Follow the board setup instructions in section 1.9 to provide all the required connections and switching on
the cellular module.
2. Run the m-center tool: after the m-center start-up, the Home page appears.
3. On the Home page, set up the AT COM port; for
the setting values see section 1.9.
Check with the Windows Device Manager to find
out which COM port is being used by EVK-G3x.
Figure 3: “Home” page
4. Enable the connection to the u-blox cellular module
by clicking on the Connect button.
5. Retrieve the module and network information by
clicking on the Get Info button.
6. The module information is retrieved and displayed
on Home page.
7. Click on the AT Terminal button, found at the
upper right of the Home page. A new window
opens and the AT-command terminal is now ready
for communication with EVK-G3x.
Figure 4: AT Terminal window
8. The AT terminal is ready to use.
For the complete list of AT commands supported by
the modules and their syntax, see the u-blox AT
commands Manual [1].
For more information on using the u-blox m-center cellular module evaluation tool, press the F1 key on your
keyboard to open the m-center help window on your computer.

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BSetting up cellular packet data connection on PC
This section describes how to set up a packet data connection with Windows 7 operating systems (for PC) and
EVK-G3x, using the TCP/IP stack of the PC (external TCP/IP stack).
B.1 Install a new modem from the control panel
1. Select: Control panel -> Phones and Modem -> Modems
-> Add.
This opens the Install New Modem Wizard.
2. Select “Don’t detect my modem” checkbox.
3. Select: Standard Modem (33600 b/s).
4. Set the COM-port on which the modem will be installed.

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5. Select: Control panel -> Phones and Modem -> Modems
-> Standard Modem 33600 bps Modem -> Properties.
6. Select Change Settings -> Advanced.
7. Add APN settings command (APN shown is just an
example. Make sure to have the correct APN defined by
the network operator).
8. Select “Change Default Preferences”.
9. Press OK twice, and then the new connection is ready to
be configured.
The modem can also be configured using the Device Manager by clicking on the modem name.

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B.2 Configuring a new connection
1. Select: Control Panel -> Network and Sharing Center
-> Set up a new connection or network.
2. Select the modem, if requested.
3. Enter parameters for the dial-up connection:
the module telephone number (*99***1#)
the specific GPRS account information for the
network operator
a name for the new connection (e.g. “u-blox
GPRS Connection“)
4. The packet data connection is now ready to be used
with the EVK-G3x. To check the connection, start a
browser.
Consult the cellular network operator for username and password. In most cases, these can be left empty.

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CExamples of AT commands
For the complete description and syntax of the AT commands supported by each SARA-G3 series cellular module
product version, see the u-blox AT commands Manual [1].
For detailed examples of AT commands for network registration and configuration, context activation, data
connection management, SIM management and other module settings, see the u-blox AT Commands Examples
Application Note [2].
C.1 Incoming voice call
Command sent by DTE (user)
DCE response (module)
Description
AT
OK
AT+CLIP=1
OK
Activation of Caller line ID presentation.
Call the phone number of the SIM in the device.
RING
Incoming Call.
+CLIP: “[phone]”,
145,,,,0
RING
+CLIP: “[phone]”,
145,,,,0
Presentation of Caller ID: [phone] is written here as
example.
ATA
OK
Answer to Voice Call.
ATH
OK
Talk to the caller using the headset.
Hang up.
C.2 Outgoing voice call
Command sent by DTE (user)
DCE response (module)
Description
AT
OK
AT+CLIP=1
OK
Activation of Caller line ID presentation.
ATD+3930012345678;
OK
Outgoing voice call ([phone] is written here as example).
Voice call is accepted from network.
ATH
OK
Hang up.
C.3 Data call (CSD mode)
Command sent by DTE (user)
DCE response (module)
Description
AT+CBST=7,0,1
OK
Set data call to 9600 RLP analog.
ATD+3930012345678
CONNECT 9600
~ }#À!}!}1} }4}”}&} }*}
} }%}&ú…}<}’}”}(}”}/Ë~~
}#À!}!}2} }4}”}&}
}*} }
}%}&ú…}<}’}”}(}”Åv~~
}#À!}!}3} }4}”}&} }*} }
}%}&ú…}<}’}”}(}”Œå~ +++
OK
Outgoing data call ([phone] is written here as example).
Connect to remote analog modem.
ATH
OK
Hang up.
AT+CBST=71,0,1
OK
Set data call to 9600 RLP V.110 ISDN.

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Command sent by DTE (user)
DCE response (module)
Description
ATD+3930012345678
Outgoing data call ([phone] is written here as example).
CONNECT 9600
~ }#À!}!Œ} }4}”}&} }*} }
}%}&ú„Ej}’}”}(}”KÌ~~
}#À!}!} }4}”}&} }*}
} }%}&ú„Ej}’}”}(}”}”_~~
}#À!}!Ž} }4}”}&} }*} }
}%}&ú„Ej}’}”}(}”Èâ~ +++
OK
Connect to remote ISDN modem.
ATH
OK
Hang up.
C.4 SMS management
Command sent by DTE (user)
DCE response (module)
Description
AT+CMGF=1
OK
Set the text mode as the format that will be used. To be set before
of the first operation.
AT+CMGS=”[phone]”
SMS TEXT MESSAGE
0123456789<CTRL-Z>
>
+CMGS: 0
OK
Send 1st SMS ([phone] is written here as example).
AT+CMGS=”[phone]”
>
Send 2nd SMS ([phone] is written here as example).
SMS TEXT MESSAGE
0123456789<CTRL-Z>
+CMGS: 1
OK
AT+CMGL
+CMGL:302,”REC
UNREAD”,”[phone]”
,,”05/09/27,16:40:36+08”
SMS TEXT MESSAGE
0123456789
OK
List all the incoming SMSes ([phone] is written here as
example).
C.5 Internet connection in GPRS mode (using external TCP/IP stack)
Command sent by DTE (user)
DCE response (module)
Description
AT+CGATT?
+CGATT: 1
OK
Check if the cellular module is attached to GPRS service
(1 –attached, 0 –detached).
AT+CGDCONT=1,”IP”,”uni.t
im.it”
OK
Define the PDP context parameters.
AT+CGDCONT?
+CGDCONT: 1,”IP”,”my_apn
”,”0.0.0.0”,0,0
OK
ATD*99***1#
CONNECT
Initiate the GPRS connection.
+++
NO CARRIER
Disconnect with +++ sequence.
C.6 Internet connection in GPRS mode (using internal TCP/IP stack)
Command sent by DTE (user)
DCE response (module)
Description
AT+UPSD=0,1,”my apn”
OK
Configure PDP-context parameters.
Make sure to have the correct APN.
AT+UPSD=0,2,”my user-
name”
AT+UPSD=0,3,”my
password”
OK
OK
Username and password depend on the mobile operator used. In
most cases these are not required. Simply use space or omit these
commands.
AT+UPSD=0
(configuration
parameters)
Check the configuration.
AT+UPSDA=0,1
OK
Store configuration in non-volatile memory (NVM).
AT+UPSDA=0,3
OK
Activate PDP-context.

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Verify connection and PDP-context
Command sent by DTE (user)
DCE response (module)
Description
AT+UPSND=0,0
(IP address)
Check IP addresses assigned.
AT+UPSND=0,1
(IP address of DNS)
Check DNS assigned.
AT+UDNSRN=0,”www.ublox.c
om”
195.34.89.137
or 195.34.89.138
OK
Example: resolve DNS name.
C.7 Enable communication between cellular and GNSS modules
Command sent by DTE (user)
DCE response (module)
Description
AT+UGPS=1,0
OK
Enable communication.
On the ADP-GNSS: LED DS118 lights green, LED DS132 blinks.
C.8 Read NMEA messages (example: GLL)
Several NMEA messages via Cellular USB or RS232 (UART) can be read. The example below shows how to read a
GLL message to get the last available Geographic position Latitude / Longitude. For the full list of NMEA
messages that can be read, see the u-blox AT commands manual [1].
Command sent by DTE (user)
DCE response (module)
Description
AT+UGGLL=1
OK
Enable GLL message.
AT+UGGLL?
+UGGLL: (State),(GLL-
msg)
OK
Or
+UGGLL: (state), Not
Available
OK
Read message.
The last available GLL message is displayed.
C.9 GNSS AssistNow online
Command sent by DTE (user)
DCE response (module)
Description
AT+UGAOP="agps.u-
blox.com",46434,1000,0
OK
Insert server data - the parameters are written as an example.
AT+UPSD=0,1,"web.omnitel
.it"
OK
Configure the GPRS connection - "web.omnitel.it" is written as
APN example.
AT+UGPS=1,4
OK
Start the GNSS. No need to do this if this is already done before.
AT+UGAOS=4
OK
Send data to the u-blox server.
C.10 GNSS AssistNow offline
Command sent by DTE (user)
DCE response (module)
Description
AT+UGAOF="http://alp.u-
blox.com/current_14d.alp
",0,1,3
OK
Insert server data - the parameters are written as an example.
AT+UGPS=1,2
OK
Start the GNSS (the default interface is DDC).

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DCurrent consumption measurement
Current consumption of SARA-G3 series modules can be measured on the EVK-G3x by removing the jumper
socket from the Cellular VCC supply jumper (J404 on the EVB), described in Figure 5.
Cellular VCC supply jumper socket (J404)
to be removed for SARA-G3 module
current consumption measurements
Figure 5: Jumper socket to be removed for SARA-G3 series modules current consumption measurement
A suitable external digital multi-meter (as for example the Agilent 34410A or 34411A) can be used for current
consumption measurements. In this case the 3.8 V supply circuit on the EVB will supply the SARA-G3 module
mounted on the adapter board, with the digital multi-meter placed in series as described in Figure 6.
SARA-G3 adapter board
SARA-G3
Cellular
module
42-pin DIL B2B connectors
EVB-WL3
Step - Down
Main power switch
(SW400)
12 V
(J400)
3.8 V
VCC jumper
(J404)
VCC
Digital Multimeter
DCI
+ –
Figure 6: Block diagram of current consumption setup for SARA-G3 series modules
Alternatively, a suitable external DC power supply with dynamic current measurement capabilities (as for
example the Agilent 66319B/D) can be used for current consumption measurements, acting also as 3.8 V supply
source for the SARA-G3 module mounted on the adapter board.