Digi XBee Cellular 3G Global Manuale utente

Digi XBee® Cellular 3G Global

Embedded Modem

User Guide

Revision history—90001541

Revision Date Description

AJune, 2017 Baseline release of the document.

B June 2017 Updated the cellular service information.

Trademarks and copyright

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property of their respective owners.

Disclaimers

Information in this document is subject to change without notice and does not represent a

commitment on the part of Digi International. Digi provides this document “as is,” without warranty of

any kind, expressed or implied, including, but not limited to, the implied warranties of fitness or

merchantability for a particular purpose. Digi may make improvements and/or changes in this manual

or in the product(s) and/or the program(s) described in this manual at any time.

Warranty

To view product warranty information, go to the following website:

www.digi.com/howtobuy/terms

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Digi XBee Cellular 3G Global Embedded Modem User Guide 2

Contents

Digi XBee Cellular 3G Global Embedded Modem User Guide

Applicable firmware and hardware 9

Purchase the correct SIM cards 9

Getting started with the XBee Cellular Modem Development Kit

Identify the kit contents 11

Cellular service 11

Connect the hardware 12

Configure the device using XCTU 13

Add a device 13

Update to the latest firmware 13

Software libraries 13

XBIB-U-DEV reference 15

Check for cellular registration and connection 16

Flow control 17

Connect to the ELIZA server 17

Connect to the echo server 19

Connect to the Daytime server 20

Connect to a TCP/IP address 22

Perform a (GET) HTTP request 23

Get started with MQTT 24

Example: MQTT connect 25

Send a connect packet 26

Example: send messages (publish) with MQTT 28

Example: receive messages (subscribe) with MQTT 29

Use MQTT over the XBee Cellular Modem with a PC 30

Get started with CoAP 33

CoAP terms 33

CoAP quick start example 34

Configure the device 35

Example: manually perform a CoAPrequest 35

Example: use Python to generate a CoAP message 36

Configure the XBee Cellular Modem using Digi Remote Manager 37

Create a Remote Manager account 37

Get the XBee Cellular Modem IMEI number 38

Add a XBee Cellular Modem to Remote Manager 38

Update the firmware 38

Digi XBee Cellular 3G Global Embedded Modem User Guide 3

Digi XBee Cellular 3G Global Embedded Modem User Guide 4

Get started with MicroPython

About MicroPython 41

Why use MicroPython 41

MicroPython on the XBee Cellular Modem 41

Use XCTU to enter the MicroPython environment 41

Use the MicroPython Terminal in XCTU 42

Example: hello world 42

Example: turn on an LED 42

Exit MicroPython mode 43

Other terminal programs 44

Tera Term for Windows 44

Use picocom in Linux 45

Technical specifications

Interface and hardware specifications 48

RF characteristics 48

Networking specifications 48

Power requirements 49

Power consumption 49

Electrical specifications 49

Regulatory approvals 50

Hardware

Mechanical drawings 53

Pin signals 53

Pin connection recommendations 54

SIM card 54

The Associate LED 54

Antenna recommendations

Antenna placement 57

Design recommendations

Power supply considerations 59

Add a capacitor to the RESET line 59

Heat considerations 60

Add a fan to provide active cooling 60

Cellular connection process

Connecting 62

Cellular network 62

Data network connection 62

Data communication with remote servers (TCP/UDP) 62

Disconnecting 62

SMS encoding 63

Digi XBee Cellular 3G Global Embedded Modem User Guide 5

Modes

Select an operating mode 65

Transparent operating mode 65

API operating mode 66

Bypass operating mode 66

Enter Bypass operating mode 66

Leave Bypass operating mode 67

Restore cellular settings to default in Bypass operating mode 67

Command mode 67

Enter Command mode 67

Send AT commands 68

Apply command changes 68

Make command changes permanent 68

Exit Command mode 68

Sleep modes

About sleep modes 71

Normal mode 71

Pin sleep mode 71

Cyclic sleep mode 71

Cyclic sleep with pin wake up mode 71

Airplane mode 71

The sleep timer 71

MicroPython sleep behavior 72

Serial communication

Serial interface 74

Serial data 74

UART data flow 74

Serial buffers 75

CTS flow control 75

RTS flow control 75

AT commands

MicroPython commands 77

PS (Python Startup) 77

PY (MicroPython Command) 77

Special commands 78

AC (Apply Changes) 78

FR (Force Reset) 78

RE (Restore Defaults) 79

WR (Write) 79

Cellular commands 79

PH (Phone Number) 79

S# (ICCID) 79

IM (IMEI) 80

MN (Operator) 80

MV (Modem Firmware Version) 80

DB (Cellular Signal Strength) 80

Digi XBee Cellular 3G Global Embedded Modem User Guide 6

AN (Access Point Name) 80

AM (Airplane Mode) 81

Network commands 81

IP (IP Protocol) 81

TL (SSL/TLS Protocol Version) 81

TM (TCP Client Connection Timeout) 82

DO (Device Options) 82

EQ (Device Cloud FQDN) 83

Addressing commands 83

SH (Serial Number High) 83

SL (Serial Number Low) 84

DL (Destination Address) 84

P# (Destination Phone Number) 84

DE (Destination Port) 84

TD (Text Delimiter) 85

MY (Module IP Address) 85

LA (Lookup IP Address of FQDN) 85

OD (Operating Destination Address) 85

C0 (Source Port) 86

Serial interfacing commands 86

BD (Baud Rate) 86

NB (Parity) 87

SB (Stop Bits) 87

RO (Packetization Timeout) 87

FT (Flow Control Threshold) 88

API Enable 88

PD (Pull Direction) 88

PR (Pull-up/down Resistor Enable) 89

I/O settings commands 90

D0 (DIO0/AD0) 90

D1 (DIO1/AD1) 90

D2 (DIO2/AD2) 91

D3 (DIO3/AD3) 91

D4 (DIO4) 91

D5 (DIO5/ASSOCIATED_INDICATOR) 92

D6 (DIO6/RTS) 92

D7 (DIO7/CTS) 93

D8 (DIO8/SLEEP_REQUEST) 93

D9 (DIO9/ON_SLEEP) 94

P0 (DIO10 Configuration) 94

P1 (DIO11/PWM1 Configuration) 95

P2 (DIO12 Configuration) 95

I/O sampling commands 95

TP (Temperature) 96

SM (Sleep Mode) 96

SP (Sleep Period) 96

ST (Wake Time) 97

Command mode options 97

CC (Command Sequence Character) 97

CT (Command Mode Timeout) 97

GT (Guard Times) 97

Firmware version/information commands 98

VR (Firmware Version) 98

VL (Version Long) 98

HV (Hardware Version) 98

Digi XBee Cellular 3G Global Embedded Modem User Guide 7

AI (Association Indication) 98

HS (Hardware Series) 99

CK (Configuration CRC) 99

Diagnostic interface commands 99

DI (Device Cloud Indicator) 99

CI (Protocol/Connection Indication) 100

Execution commands 102

NR (Network Reset) 102

!R (Modem Reset) 102

IS (Force Sample) 103

Operate in API mode

API mode overview 105

Use the AP command to set the operation mode 105

API frame format 105

API operation (AP parameter = 1) 105

API operation with escaped characters (AP parameter = 2) 106

Frame descriptions 109

AT Command - 0x08 109

AT Command: Queue Parameter Value - 0x09 110

Transmit (TX) SMS - 0x1F 111

Transmit (TX) Request: IPv4 - 0x20 112

AT Command Response - 0x88 113

Transmit (TX) Status - 0x89 114

Modem Status - 0x8A 115

Receive (RX) Packet: SMS - 0x9F 116

Receive (RX) Packet: IPv4 - 0xB0 117

Socket behavior

Secure Sockets Layer (SSL) certificate checking 119

Socket timeouts 119

Enable incoming TCP sockets in API mode 119

Troubleshooting

Cannot find the serial port for the device 121

Condition 121

Solution 121

Correct a macOS Java error 123

Condition 123

Solution 123

Unresponsive cellular component in Bypass mode 124

Condition 124

Solution 124

Not on expected network after APN change 125

Condition 125

Solution 125

Syntax error at line 1 125

Solution 125

Error Failed to send SMS 125

Solution 125

Digi XBee Cellular 3G Global Embedded Modem User Guide 8

Regulatory information

Modification statement 127

Interference statement 127

Antennas 127

FCC (USA) exposure notice 127

ISED (Canada) exposure notice 127

FCC Class B digital device notice 128

Labelling requirements for the host device 128

Digi XBee Cellular 3G Global Embedded Modem User

Guide

The XBee Cellular Modem integrates an embedded Wideband Code Division Multiple Access (WCDMA)

cellular module and enables original equipment manufacturers (OEMs) to incorporate 3G cellular

technology into their devices and applications without painful, time-consuming, and expensive FCC

and carrier end-device certifications.

With the full suite of standard XBee API frames and AT commands, existing XBee customers can

seamlessly transition to this new device with only minor software adjustments. When OEMs add the

XBee Cellular Modem to their product, they create a future-proof design with flexibility to switch

between wireless protocols or frequencies as needed.

Applicable firmware and hardware

This manual supports the following firmware:

n113xx

It supports the following hardware:

nXBC-M5-UT-xxx

Purchase the correct SIM cards

The XBee Cellular Modem requires a 4FF (Nano) size SIM card. The SIM interface supports both 1.8 V

and 3 V SIM types.

Digi XBee Cellular 3G Global Embedded Modem User Guide 9

Getting started with the XBee Cellular Modem

Development Kit

This section describes how to connect the hardware in the XBee Cellular Modem Development Kit, and

provides some examples you can use to communicate with the device.

Identify the kit contents 11

Cellular service 11

Connect the hardware 12

Configure the device using XCTU 13

Software libraries 13

XBIB-U-DEV reference 15

Check for cellular registration and connection 16

Flow control 17

Connect to the ELIZA server 17

Connect to the echo server 19

Connect to the Daytime server 20

Connect to a TCP/IP address 22

Perform a (GET) HTTP request 23

Get started with MQTT 24

Get started with CoAP 33

Configure the XBee Cellular Modem using Digi Remote Manager 37

Digi XBee Cellular 3G Global Embedded Modem User Guide 10

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