Digi XBee 3

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Design recommendations

Cellular component firmware updates 123

Power supply considerations 123

Recommended application circuit 123

Heat considerations and testing 124

Heat sink guidelines 125

Add a fan to provide active cooling 126

Custom configuration: Create a new factory default 126

Clean shutdown 127

Digi XBee® 3 Cellular LTE Cat 1 AT&T Smart Modem User Guide

122

Table of Contents

Default Chapter2
- Customer Support2
- Table of Contents4
Digi Xbee® 3 Cellular LTE Cat 1 AT&T Smart Modem User Guide15
- Applicable Firmware and Hardware15
- SIM Cards15
Get Started with the Xbee Smart Modem16
- Identify the Kit Contents17
- Connect the Hardware18
- Install and Upgrade XCTU19
  - Add a Device to XCTU19
- Update the Device and Cellular Firmware Using XCTU20
- Check for Cellular Registration and Connection20
- Cellular Service20
Xbee Connection Examples23
- Connect to the Echo Server23
- Connect to the ELIZA Server25
- Connect to the Daytime Server27
- Send an SMS Message to a Phone29
- Perform a (GET) HTTP Request31
- Connect to a TCP/IP Address33
- Software Libraries33
Get Started with Micropython36
- About Micropython36
  - Why Use Micropython36
- Micropython on the Xbee Smart Modem36
- Use XCTU to Enter the Micropython Environment36
- Use the Micropython Terminal in XCTU37
  - Troubleshooting37
- Example: Hello World37
- Example: Turn on an LED37
- Example: Code a Request Help Button38
- Example: Debug the Secondary UART43
- Exit Micropython Mode43
- Other Terminal Programs44
  - Tera Term for Windows44
- Use Picocom in Linux45
Get Started with BLE47
- On Xbee 3 Cellular Firmware Ending in X15 or Newer47
- On Xbee 3 Cellular Firmware Ending in X14 or Older47
- Enable BLE on an Xbee Device48
- Enable BLE and Configure the BLE Password Using XCTU48
- Get the Digi Xbee Mobile Phone Application49
- Connect with BLE and Configure Your Xbee Device49
- BLE Reference50
Get Started with Digi Remote Manager52
- Create a Remote Manager Account and Add Devices52
- Configure Remote Manager Features by Scheduling Tasks54
- Manage Data in Remote Manager62
  - Review Device Status Information from Remote Manager62
  - Manage Secure Files in Remote Manager63
- Remote Manager Reference64
Examples: IOT Protocols with Transparent Mode69
- Get Started with Coap70
- Get Started with MQTT74
Updatethefirmware84
- Create a Plan for Device and Cellular Component Firmware Updates84
- Update the Device and the Cellular Firmware Using XCTU85
  - Update the Device and Cellular Firmware Using XCTU and USB Direct Access85
- Update the Device Firmware87
- Update the Cellular Firmware94
  - Update the Cellular Component Firmware Using Remote Manager94
  - Update the Telit Modem Firmware Using the XFP Utility97
Technical Specifications101
- Interface and Hardware Specifications102
- RF Characteristics102
- Networking Specifications102
- Power Requirements102
- Power Consumption103
- Electrical Specifications103
- Regulatory Approvals104
Hardware106
- Mechanical Drawings107
- Pin Signals107
  - Pin Connection Recommendations108
- Rssi Pwm109
- SIM Card109
- Associate LED Functionality109
- Development Boards111
Antenna Recommendations119
- Antenna Connections119
- Keepout Area120
  - Through-Hole Keepout121
- Antenna Placement121
Design Recommendations123
- Cellular Component Firmware Updates123
- Power Supply Considerations123
- Recommended Application Circuit123
- Heat Considerations and Testing124
- Heat Sink Guidelines125
- Add a Fan to Provide Active Cooling126
- Custom Configuration: Create a New Factory Default126
  - Set a Custom Configuration127
  - Clear All Custom Configurations on a Device127
- Clean Shutdown127
Cellular Connection Process129
- Connecting130
  - Cellular Network130
  - Data Network Connection130
- Data Communication with Remote Servers (TCP/UDP)130
- Disconnecting130
Modes132
- Select an Operating Mode133
- Transparent Operating Mode134
- API Operating Mode134
- Bypass Operating Mode (DEPRECATED)134
- USB Direct Mode135
  - Enable USB Direct Mode135
  - Configure and Use PPP with a Digi Xbee 3 Cellular CAT 1 AT&T Modem136
- Command Mode139
- Micropython Mode141
Sleep Modes142
- About Sleep Modes143
- Normal Mode143
- Pin Sleep Mode143
- Cyclic Sleep Mode143
- Cyclic Sleep with Pin Wake up Mode143
- The Sleep Timer143
- Micropython Sleep Behavior143
Power Saving Features and Design Recommendations145
- Airplane Mode146
Serial Communication147
- Serial Interface148
- Serial Data148
- UART Data Flow148
- Serial Buffers148
- CTS Flow Control149
- RTS Flow Control149
- Enable UART or SPI Ports149
SPI Operation150
- SPI Communications151
- Full Duplex Operation152
- Low Power Operation153
- Select the SPI Port153
- Force UART Operation154
- Data Format154
File System155
- Overview of the File System156
- XCTU Interface157
- Encrypt Files157
SMS Behaviors158
- SMS Encoding158
Socket Behavior159
- Supported Sockets160
- Best Practices When Using Sockets160
  - Sockets and Remote Manager160
  - Sockets and API Mode160
- Socket Timeouts160
- Socket Limits in API Mode160
- Enable Incoming TCP Connections161
- API Mode Behavior for Outgoing TCP and TLS Connections161
- API Mode Behavior for Outgoing UDP Data162
- API Mode Behavior for Incoming TCP Connections162
- API Mode Behavior for Incoming UDP Data163
- Transparent Mode Behavior for Outgoing TCP and TLS Connections163
- Transparent Mode Behavior for Outgoing UDP Data163
- Transparent Mode Behavior for Incoming TCP Connections163
- Transparent Mode Behavior for Incoming UDP Connections164
Extended Socket Frames165
- Examples165
- Available Extended Socket Frames166
- Extended Socket Example: Single HTTP Connection166
- Extended Socket Example: UDP170
- Extended Socket Example: TCP Listener175
Transport Layer Security (TLS)179
- Specifying TLS Keys and Certificates180
- Transparent Mode and TLS181
- API Mode and TLS181
- Key Formats181
- Certificate Limitations181
- Cipher Suites181
- Server Name Indication (SNI)182
- Secure the Connection between an Xbee and Remote Manager with Server Authentication182
Atcommands185
- Special Commands185
- Cellular Commands187
- Network Commands193
- Addressing Commands196
- Serial Interfacing Commands199
- I/O Settings Commands203
- I/O Sampling Commands212
  - TP (Temperature)212
  - IS (Force Sample)212
- Sleep Commands214
- Command Mode Options215
- Micropython Commands217
  - PS (Python Startup)217
  - PY (Micropython Command)217
- Firmware Version/Information Commands219
- Diagnostic Interface Commands223
- Execution Commands227
  - NR (Network Reset)227
  - R (Modem Reset)227
- File System Commands228
- BLE Commands231
- Remote Manager Commands233
- System Commands236
- Socket Commands237
  - Socket Info)237
Operate in API Mode239
- API Mode Overview240
- Use the AP Command to Set the Operation Mode240
- API Frame Format240
  - API Operation (AP Parameter = 1)240
  - API Operation with Escaped Characters (AP Parameter = 2)241
API Frames244
- AT Command - 0X08245
- AT Command: Queue Parameter Value - 0X09246
- Transmit (TX) SMS - 0X1F247
- Transmit (TX) Request: Ipv4 - 0X20248
- Tx Request with TLS Profile - 0X23250
- AT Command Response - 0X88252
- Transmit (TX) Status - 0X89253
- Modem Status - 0X8A255
- Receive (RX) Packet: SMS - 0X9F256
- Receive (RX) Packet: Ipv4 - 0Xb0257
- User Data Relay - 0X2D258
  - Example Use Cases258
- User Data Relay Output - 0Xad260
- BLE Unlock API - 0X2C261
  - Example Sequence to Perform at Command Xbee API Frames over BLE263
- BLE Unlock Response - 0Xac265
- Socket Create - 0X40266
- Socket Create Response - 0Xc0267
- Socket Option Request - 0X41268
- Socket Option Response - 0Xc1269
- Socket Connect - 0X42270
- Socket Connect Response - 0Xc2271
- Socket Close - 0X43272
- Socket Close Response - 0Xc3273
- Socket Send (Transmit) - 0X44274
- Socket Sendto (Transmit Explicit Data): Ipv4 - 0X45275
- Socket Bind/Listen - 0X46276
- Socket Listen Response - 0Xc6277
- Socket New Ipv4 Client - 0Xcc278
- Socket Receive - 0Xcd279
- Socket Receive From: Ipv4 - 0Xce280
- Socket Status - 0Xcf281
Troubleshooting282
- Cannot Find the Serial Port for the Device283
- Correct a Macos Java Error285
  - Condition285
  - Solution285
- Unresponsive Cellular Component in Bypass Mode286
  - Condition286
  - Solution286
- Not on Expected Network after APN Change287
  - Condition287
  - Solution287
- Syntax Error at Line 1287
- Error Failed to Send SMS287
- Baud Rate in Bypass Mode287
Regulatory Information288
- Modification Statement289
- Interference Statement289
- FCC Class B Digital Device Notice289
- RF Exposure290
- FCC Notices290
  - Cellular Antennas291
- Labeling Requirements for the Host Device292

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