Ublox SARA-N3 series, EVK-N3 User Manual

Page 1

EVK-N3

SARA-N3 series Cellular Evaluation Kits

User Guide

Abstract

This guide explains how to set up the EVK-N3 Evaluation Kits to begin evaluating the u-blox SARA-N3 series cellular modules supporting LTE Cat NB2 radio access technology.

www.u-blox.com

UBX-19004195 - R01

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Document Information

Title

EVK-N3

Subtitle

SARA-N3 series Cellular Evaluation Kits

Document type

User Guide

Document number

UBX-19004195

Revision and date

R01

08-Mar-2019

Disclosure Restriction

This document applies to the following products:

Product name

Type number

Modem version

Application version

PCN reference

Product status

EVK-N300

EVK-N300-0-00

18.00

A04.00

UBX-19008291

Prototype

EVK-N310

EVK-N310-0-00

18.00

A04.00

UBX-19008291

Prototype

u-blox or third parties may hold intellectual property rights in the products, names, logos and designs included in this document. Copying, reproduction, modification or disclosure to third parties of this document or any part thereof is only permitted with the express written permission of u-blox. The information contained herein is provided “as is” and u-blox assumes no liability for its use. No warranty, either express or implied, is given, including but not limited to, 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 without notice. For the most recent documents, visit www.u-blox.com. Copyright © u-blox AG.

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Contents

Document Information ................................................................................................................................ 2

Contents .......................................................................................................................................................... 3

1 Starting up ............................................................................................................................................... 4

1.1 EVK-N3 overview ......................................................................................................................................... 4

1.2 EVK-N3 block diagram ............................................................................................................................... 5

1.3 Switches, jumpers and buttons ............................................................................................................... 6

1.4 LEDs ............................................................................................................................................................... 7

1.5 Connectors ................................................................................................................................................... 8

1.6 EVK-N3 pin out ............................................................................................................................................ 9

1.7 Software installation ................................................................................................................................ 10

1.8 Board setup ................................................................................................................................................. 11

Appendix ........................................................................................................................................................ 13

A Setting up AT terminal applications for communication with EVK-N3 ............................ 13

B AT commands examples ................................................................................................................... 14

C Declaration of conformities.............................................................................................................. 14

D Current consumption measurement ............................................................................................. 15

E Glossary .................................................................................................................................................. 16

Related documents .................................................................................................................................... 17

Revision history ........................................................................................................................................... 17

Contact ........................................................................................................................................................... 18

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1 Starting up

1.1 EVK-N3 overview

The EVK-N3 evaluation kits are powerful and easy-to-use tools that simplify the evaluation of u-blox SARA-N3 series Narrow Band Internet of Things (NB-IoT) modules.

The following evaluation kits are available with u-blox SARA-N3 cellular modules:

 EVK-N300 evaluation kit is for evaluation of SARA-N300  EVK-N310 evaluation kit is for evaluation of SARA-N310

The evaluation kits EVK-N300 and EVK-N310 are herein identified as EVK-N3.

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

SARA-N3

cellular module

DIL B2B connector

J101

DIL B2B connector

J102

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

Headset jack

J303

DS132

DS118

DS124

DS121

DS107 DS105 DS109 DS103

DS501 DS500

GND

Cellular antenna connector

(ANT) J106

DS101

SW510

DL503

GDI voltage

selection

Jumper

J105

Figure 1: Overview of EVK-N3 evaluation kit for SARA-N3 modules

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1.2 EVK-N3 block diagram

Figure 2 shows the main interfaces and internal connections of the EVK-N3 evaluation kit:

SIM

card holder

(J300)

Reset

(SW303)

Power-on

(SW302)

ADP-N3

SARA-N3

module

42-pin DIL Board

-to-Board Connector (J101)

42-pin DIL Board

-to-Board Connector (J102)

EVB-WL3

GNSS

module

GNSS Adapter Board

USB

UART / UART FT

converter

Cellular USB

(UART / UART FT)

(J501)

Cellular RS232

(UART) (J500)

RS232

UART

converter

UART

MiniUSB/DB9

switch

(SW403)

On-Board/B2B

switch

(SW401)

USB

Headset jack

(J303)

I2C

ANT NB

(J106)

Step - Down

Main power switch

(SW400)

12 V

(J400)

3.8 V

VCC jumper

(J404)

LDO

UART FT

UART FT switch

(SW510)

SARA-N3 Adapter Board

ADP-GNSS

GPIO2/3/4

GNSS switch

(SW304)

GDI voltage

selection jumper (J105)

Figure 2: Block diagram of EVK-N3 for SARA-N3 series modules

The EVK-N3 evaluation kit is formed by three boards:  The lower one, called EVB-WL3, contains the power supply and other peripherals for the SARA-N3

module (such as SIM card holder, reset button and power-on button).

 The cellular adapter board, called ADP-N3, contains the SARA-N3 module, the cellular antenna

connector, a 3-pin header with jumper for the digital I/O interfaces (GDI) voltage selection, and the DIL connectors (J101 and J102).

 The GNSS adapter board, called ADP-GNSS, contains the u-blox GNSS module, 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 provided on the bottom of the adapter boards and their corresponding female connectors provided on top of the lower board.

The SARA-N3 series pins are available on the Dual-In-Line male Board-to-Board connectors provided on the top layer of the cellular Adapter Board (J101 and J102), which are pin-to-pin compatible to the connectors on the bottom layer of the adapter board EVB-WL3.

Communication with the SARA-N3 module is provided through the Cellular RS232 DB9 connector (J500) or the Cellular USB Mini-USB connector (J501), available on the EVB-WL3 board. The UART interface of the SARA-N3 module is routed up to both the connectors - J500 and J501. The Mini-USB / DB9 slide switch (SW403) must be set according to the selected connector. The Cellular USB Mini-USB connector (J501) provides also access to the additional UART interface for firmware upgrade and tracing of the SARA-N3 module (see section 1.8).

The lower board (EVB-WL3) is designed also to be used with other u-blox cellular adapter boards. It contains additional switches, jumpers, connectors, LEDs and parts that are partially described in

Figure 1 or in this document, because they are intended for use only with other u-blox cellular modules.

It is recommended to leave any additional connector unconnected and any additional switch in its default configuration.

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1.3 Switches, jumpers and buttons

Function

Description

Name

Board

Main Power Switch

Power on / off of the whole evaluation kit

SW400

EVB-WL3

Cellular VCC Jumper

Jumper socket to provide the 3.8 V supply to the cellular module VCC input

J404

EVB-WL3

Cellular Power-on

Push button to switch on the cellular module

SW302

EVB-WL3

Cellular Reset

Push button to reset the cellular module

SW303

EVB-WL3

Cellular UART detach

Slide switch to attach / detach the cellular module UART from USB / RS232 connectors: when detached, UART signals are available only on DIL B2B connectors on ADP board

SW401

EVB-WL3 Cellular UART routing

Slide switch to select the cellular module UART routing on USB or on RS232 connector

SW403

EVB-WL3

Cellular UART FT detach

Slide switch to attach / detach the cellular module UART FT from USB connector: when detached, the UART FT signals are available only on the DIL B2B connector on ADP board

SW510

EVB-WL3

Cellular GPIO detach

Slide switch to attach / detach the cellular module GPIOs from peripherals: when detached, the signals are available only on the DIL B2B connectors on ADP board

SW300

EVB-WL3

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-WL3 GNSS V_BCKP

Slide switch to connect / disconnect backup battery to V_BCKP pin of the GNSS module

SW204

EVB-WL3

Cellular GDI voltage selection Jumper

3-pin header with jumper to select operating voltage for cellular Generic Digital I/O Interfaces: ‘L’ = 1.8 V / ‘F’ = 2.8 V

J105

ADP-N3

Table 1: Description of EVK-N3 switch, jumpers and buttons

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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-WL3

Cellular VCC

Cellular module supplied. Main Power Switch must be switched on

DL400

EVB-WL3

Cellular USB (UART/UART FT)

USB cable plugged in the Cellular USB connector for UART / UART FT access

DL501

EVB-WL3

Cellular USB / UART

Green light is activated when UART is routed to the Cellular USB connector. Red light blinks at UART TX or RX data on the Cellular USB connector

DL403

EVB-WL3 Cellular UART detach

UART signals are available only on the DIL B2B connector on ADP board

DL404

EVB-WL3

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 the Cellular RS232 connector

DL405

EVB-WL3

Cellular USB / UART FT

Green light is activated when UART FT is routed to Cellular USB connector. Red light blinks at UART FT data on the Cellular USB connector

DL503

EVB-WL3 Cellular RI indicator

Red light is activated when RI line turns ON (active low)

DS501

EVB-WL3

Cellular CTS indicator

Green light is activated when CTS line turns ON (active low)

DS500

EVB-WL3

Cellular GPIO1 indicator

Green light is activated when SARA-N3 GPIO1 is high

DS107

EVB-WL3

Cellular GPIO2 indicator

Green light is activated when SARA-N3 GPIO2 is high

DS105

EVB-WL3

Cellular GPIO3 indicator

Green light is activated when SARA-N3 GPIO3 is high

DS109

EVB-WL3

Cellular GPIO4 indicator

Green light is activated when SARA-N3 GPIO4 is high

DS103

EVB-WL3

V_INT supply

Green light is activated when the V_INT line is at a “high” level

DS101

ADP-N3

GNSS VCC supply

GNSS module supply is turned ON

DS118

ADP-GNSS

GNSS USB

USB cable plugged in the 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 the DDC (I2C) interface

DS132

ADP-GNSS

Table 2: Description of EVK-N3 LEDs

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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-WL3 SIM card holder

SIM card holder

J300

EVB-WL3

Cellular antenna

SMA connector for the module cellular antenna ANT NB

J106

ADP-N3

Cellular USB (UART/UART FT)

Mini USB connector for the cellular module UART and UART FT interfaces converted as USB interface

J501

EVB-WL3

Cellular RS232 (UART)

DB9 connector for the cellular module primary UART interface converted as RS232 interface

J500

EVB-WL3 DIL B2B headers

Dual-In-Line Board-to-Board connectors for the cellular module interfaces

J101, J102

ADP-N3

Cellular headset

Audio headset jack connector (not supported by SARA-N3 series)

J303

EVB-WL3

GNSS antenna

SMA connector for the GNSS module antenna (GNSS Antenna)

J103

ADP-GNSS

GNSS USB

Mini USB connector for the GNSS module USB interface

J102

ADP-GNSS

GNSS backup battery

Backup battery socket for the GNSS module (under GNSS adapter board)

BT200

EVB-WL3

GND

Ground terminals for the probe reference

J402, J403 J405, J406

EVB-WL3

Table 3: Description of EVK-N3 connectors

⚠ CAUTION! IN THE UNLIKELY EVENT OF A FAILURE IN THE INTERNAL PROTECTION CIRCUITRY

THERE IS A RISK OF AN EXPLOSION WHEN CHARGING A FULLY OR PARTIALLY DISCHARGED BATTERY. REPLACE THE BATTERY WHEN IT NO LONGER HAS A 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-N3 pin out

SARA-N3 module

DIL B2B Connector

SARA-N3 module

DIL B2B Connector

Pin N°

Signal Name

Name / Pin N°

Pin N°

Signal Name

Name / Pin N°

GND

J102 pins 7-10

ADC1

J102 pin 28

V_BCKP

J102 pin 3

RSVD

Not present

GND

J102 pins 7-10

RSVD

Not present

V_INT

J102 pin 36

RSVD

Not present

GND

J102 pins 7-10

RSVD

Not present

DSR

J102 pin 18

SIM_CLK

J101 pin 15

J102 pin 17

SIM_IO

J101 pin 14

DCD

J102 pin 11

SIM_RST

J101 pin 16

DTR

J102 pin 12

VSIM

J101 pin 13

RTS

J102 pin 13

GPIO5

J102 pin 23

CTS

J102 pin 14

GND

J102 pins 7-10

TXD

J102 pin 15

RSVD

Not present

RXD

J102 pin 16

RSVD

J101 pins 37-41

GND

J102 pins 7-10

RSVD

J101 pins 37-41

PWR_ON

J102 pin 29

RSVD

J101 pins 37-41

GPIO1

J102 pin 33

RSVD

J101 pins 37-41

TXD_AUX

J102 pin 26

RSVD

J101 pins 37-41

RESET_N

J101 pin 26

GND

J102 pins 7-10

RXD_AUX

J102 pin 27

VCC

J101 pins 7-10

GND

J102 pins 7-10

VCC

J101 pins 7-10

VSEL

J102 pin 24

VCC

J101 pins 7-10

GND

J102 pins 7-10

GND

J102 pins 7-10

GPIO2

J102 pin 31

GND

J102 pins 7-10

GPIO3

J102 pin 32

ANT

Not present

GPIO4

J102 pin 25

GND

J102 pins 7-10

SDA

J101 pin 21

GND

J102 pins 7-10

SCL

J101 pin 20

ANT_BT

Not present

RXD_FT

J102 pin 20

GND

J102 pins 7-10

TXD_FT

J102 pin 19

GND

J102 pins 7-10

GND

J102 pins 7-10

ANT_DET

Not present

RSVD

Not present

GND

J102 pins 7-10

GND

J102 pins 7-10

GND

J102 pins 7-10

Table 4: Interfaces of the SARA-N3 series module, as routed on the 42-pin Dual-In-Line Board-to-Board connectors (J101, J102) available on the ADP-N3 adapter board of the EVK-N3 evaluation kit

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Dual-In-Line Board-to-Board connector J102

Dual-In-Line Board-to-Board connector J101

Signal Name

Pin N°

Signal Name

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

DCD Not connected

Not connected

CTS

RTS SIM_IO

VSIM

RXD

TXD SIM_RST

SIM_CLK

DSR

RI Not connected

Not connected

RXD_FT

TXD_FT

SCL

Not connected

SDA

VSEL

GPIO5

Not connected

TXD_AUX

GPIO4

RESET_N

Not connected

ADC1

RXD_AUX

Not connected

PWR_ON

Not connected

GPIO3

GPIO2

Not connected

GPIO1

Not connected

V_INT

Not connected

RSVD

Not connected

RSVD

GND

Not connected

GND

RSVD

Table 5: Pin-out of the 42-pin Dual-In-Line Board-to-Board connectors (J101 and J102) available on the ADP-N3 adapter board of the EVK-N3 evaluation kit

☞ The pins / interfaces that are not supported by a specific SARA-N3 module product version should

be not driven by an external device; see the SARA-N3 series Data Sheet [2] for the list of features supported by each SARA-N3 module product version.

1.7 Software installation

The USB drivers are available with the EVK-N3 evaluation kit package. Executable files can be downloaded from www.u-blox.com/evk-downloads and saved to any location on the computer hard drive. The installation can be started by running the executable file on a computer with the Windows operating system.

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1.8 Board setup

1. Insert a SIM card into the SIM card holder (J300 on the EVB).

2. Connect a cellular antenna (provided with the evaluation kit) to the Cellular antenna SMA

connector on the ADP-N3 (ANT NB, RF input/output for transmission and reception of NB-IoT RF signals)

3. If the GNSS functionality is required, connect the GNSS antenna provided with the evaluation kit

to the GNSS antenna SMA connector on the ADP-GNSS. Place the GNSS antenna in a location with a good view of the sky.

☞ Interface to the GNSS module is not supported by SARA-N3 series modules.

4. Connect the AC / DC +12 V power adapter provided with the evaluation kit to 9 – 18 V Power Input

connector (J400 on the EVB). LED DL401 lights blue.

5. Be sure to provide a jumper socket on the Cellular VCC supply jumpers (J404 on the EVB). This

jumper provides the connection from the 3.8 V output of the supply circuit on the EVB board to the VCC input of the module.

6. To enable the board power supply, turn the Main power switch (SW400 on the EVB) to the ON

position. LED DL400 lights green.

7. To switch on the cellular module, press the Cellular power-on button (SW302 on EVB).

8. For 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 6 for slide switches positions and LED status): a. Connect a USB cable to mini USB connector (Cellular USB, J501 on EVB), LED DL501 lights

blue. In this case, two COM ports are enabled with Windows (the numbering of the COM ports can be seen via the Windows Device Manager):

 SARA-N3 UART interface is available over the first COM port (for AT commands and data)  SARA-N3 additional UART FT interface is available over the second COM port (for FW

update and diagnostic)

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 / UART FT) 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 / UART FT) and RS232 (UART) connectors

B2B

Do not care

DL404

Table 6: Serial interface configuration

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Then, besides the specific serial connector used (case a. or case b.), run an AT terminal application (as for example, the u-blox m-center tool) by selecting the appropriate AT COM port with these settings:

o Data rate: 57'600 bit/s o Data bits: 8 o Parity: N o Stop bits: 1 o Flow control: disabled

9. It is possible to access SARA-N3 module’s additional UART FT for diagnostic purpose. To do so:

Connect a USB cable to the mini USB connector (Cellular USB, J501 on EVB). LED DL501 lights blue. In this case, two COM ports are enabled with Windows (the numbering of the COM ports can be seen via the Windows Device Manager):

o SARA-N3 UART interface is available over the first COM port (for AT commands and data) o SARA-N3 additional UART FT interface is available over the second COM port (for FW update

and diagnostic)

Make sure to appropriately set the related slide switches:

o SW401 set to ON-BOARD o SW403 set to MINIUSB o SW510 set to UART1

Then, run a terminal application (as for example the u-blox m-center tool), selecting the appropriate diagnostic COM port with the following settings:

o Data rate: 921'600 bit/s o Data bits: 8 o Parity: N o Stop bits: 1 o Flow control: software

See Appendix A for information about how to configure the u-blox m-center AT terminal for Windows.

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Appendix

A Setting up AT terminal applications for

communication with EVK-N3

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 1.8 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

with the setting values described in section

1.8.

Check the Windows Device Manager to find out which COM port is being used by EVK-N3.

Figure 3: “Home” page

4. Enable the connection to u-blox cellular

module by clicking the Connect button.

5. Retrieve the module and network information

by clicking the Get info button.

6. The module information is retrieved and

displayed on the Home page.

7. Click on the AT Terminal button (upper right

of the Home page). A new window opens and the AT command terminal is now ready for communication with EVK-N3.

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 SARA-N2/N3 series AT Commands manual [1].

For more information about using the u-blox m-center cellular module evaluation tool, press the F1 key on the keyboard to open the m-center help window on the computer.

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B AT commands examples

For the complete description and syntax of the AT commands supported by SARA-N3 series modules, see the SARA-N2/N3 series AT commands Manual [1].

For detailed AT commands examples for network registration and configuration, context activation, data connection management, SIM management, module interfaces configurations and other settings, see the u-blox NB-IoT Application Development Guide [3].

C Declaration of conformities

The equipment is intended for indoor usage. It is the user’s duty to verify if further restrictions apply, such as in airplanes, hospitals or hazardous locations (petrol stations, refineries…).

Any changes or modification made to this equipment will void its compliance to the safety requirements.

Maintenance, inspections and/or repairs of the EVK-N3 evaluation kits shall be performed by u-blox AG.

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D Current consumption measurement

Current consumption of SARA-N3 series modules can be measured on the EVK-N3 evaluation kits by removing the jumper socket from the Cellular VCC supply jumper (J404 on the EVB), as shown in

Figure 5.

Cellular VCC supply jumper socket (J404)

to be removed for SARA-N3 module

current consumption measurements

Figure 5: Jumper socket to be removed for SARA-N3 modules current consumption measurement

A suitable external digital multi-meter (as for example the Keysight/Agilent 34465A, 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-N3 module mounted on the adapter board, with the digital multi-meter placed in series as described in Figure 6.

SARA-N3

adapter board

SARA-N3

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-N3

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 supply source for the SARA-N3 module mounted on the adapter board.

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E Glossary

Abbreviation

Definition

ADP

Adapter Board

AT Command Interpreter Software Subsystem, or attention

B2B

Board-to-Board Connector

CTS

Clear To Send

DDC

Display Data Channel

DIL

Dual-In-Line

EVB

Evaluation Board

Firmware

GDI

Generic Digital Interface

GND

Ground

GPIO

General Purpose Input Output

I2C

Inter-Integrated Circuit

LED

Light Emitting Diode

LTE

Long Term Evolution

NB-IoT

Narrow Band Internet of Things

Radio Frequency

Ring Indicator

RSVD

Reserved

RTS

Request To Send

Receiver

SIM

Subscriber Identification Module

Transmitter

UART

Universal Asynchronous Receiver-Transmitter

USB

Universal Serial Bus

Table 7: Explanation of the abbreviations and terms used

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