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XBee/XBee-PRO

DigiMesh 2.4 User Manual

Keepout area for the XBee/XBee-PRO

DigiMesh 2.4 RF Module

Main Page

Table of Contents3
General Information about the Xbee/Xbee-PRO Digimesh 2.4 RF Module8
Key Features of the Xbee/Xbee-PRO 2.4 Digimesh8
Worldwide Acceptance of the Xbee/Xbee-PRO 2.4 Digimesh8
Specifications of the Xbee/Xbee-PRO 2.4 Digimesh9
Mechanical Drawings of the Xbee/Xbee-PRO 2.4 Digimesh10
Mounting Considerations for the Xbee/Xbee-PRO Digimesh 2.411
Xbee/Xbee-PRO Digimesh 2.4 Pin Signals11
Recommended Pin Connections for Xbee/Xbee-PRO Digimesh 2.412
Xbee Digimesh 2.4 Design Notes13
Xbee Board Layout13
Xbee Power Supply Design13
Xbee Antenna Performance13
Xbee/Xbee-PRO® Digimesh 2.4 Electrical Characteristics15
Xbee/Xbee-PRO Module Operation17
Serial Communications for the Xbee RF Module17
Xbee UART Data Flow17
Xbee Serial Data18
Xbee Serial Buffers18
Serial Receive Buffer19
Serial Transmit Buffer19
Xbee Serial Flow Control20
CTS Flow Control20
RTS Flow Control20
Xbee Serial Interface Protocols20
Transparent Operation20
API Operation20
A Comparison of Transparent and API Operation21
Idle Mode22
Transmit Mode22
Receive Mode23
Command Mode23
AT Command Mode24
Sleep Mode25
Xbee/Xbee-PRO Digimesh 2.4 Advanced Application Features26
Xbee Remote Configuration Commands26
Sending a Remote Command to Xbee26
Applying Changes on Remote Xbee Devices26
Xbee Remote Command Responses26
Xbee Network Commissioning and Diagnostics27
Xbee Device Configuration27
Xbee Network Link Establishment and Maintenance27
Building Aggregate Routes27
Node Replacement28
Xbee Device Placement28
Link Testing28
RSSI Indicators29
Xbee Network Discovery29
Neighbor Polling29
Link Reliability of the Xbee Digimesh 2.4 RF Module29
Network Link Testing30
Link Testing between Adjacent Devices30
Trace Routing32
NACK Messages33
Xbee Commissioning Pushbutton and Associate LED33
Commissioning Pushbutton34
Associate LED36
Diagnostics Support36
Xbee/ Xbee-PRO Digimesh 2.4 I/O Line Monitoring37
I/O Samples37
Queried Sampling37
Xbee Periodic I/O Sampling39
Xbee Digital I/O Change Detection39
Xbee/Xbee-PRO Digimesh 2.4 Networking41
Digimesh Feature Set41
Digimesh Networking Concepts41
Device Configuration41
Network ID41
Operating Channel41
Digimesh Data Transmission and Routing42
Unicast Addressing42
Broadcast Addressing42
Routing42
Route Discovery43
Throughput43
Xbee Digimesh 2.4 Transmission Timeouts43
Unicast One Hop Time44
Transmitting a Broadcast44
Transmitting a Unicast with a Known Route44
Transmitting a Unicast with an Unknown Route44
Transmitting a Unicast with a Broken Route44
Xbee/Xbee-PRO Digimesh 2.4 Sleep Modes46
Digimesh Sleep Modes46
Normal Mode (SM=0)46
Asynchronous Pin Sleep Mode (SM=1)46
Asynchronous Cyclic Sleep Mode (SM=4)47
Asynchronous Cyclic Sleep with Pin Wake up Mode (SM=5)47
Synchronous Sleep Support Mode (SM=7)47
Synchronous Cyclic Sleep Mode (SM=8)47
Xbee Asynchronous Sleep Operation48
Digimesh Wake Timer48
Digimesh Sleeping Routers48
Coordinating Sleep Modes in the Digimesh Network48
Digimesh Synchronization Messages49
Becoming a Sleep Coordinator51
Sleep Guard Times52
Auto-Early Wake-Up Sleep Option52
Xbee Digimesh Configuration52
Selecting Sleep Parameters52
Starting a Sleeping Digimesh Network53
Adding a New Node to an Existing Network54
Changing Sleep Parameters54
Xbee Digimesh Diagnostics55
Query Sleep Cycle56
Sleep Status56
Missed Sync Messages Command56
Sleep Status API Messages56
Xbee/Xbee-PRO Command Reference Tables57
Xbee/Xbee-PRO Digimesh 2.4 API Operation69
Xbee API Frame Specifications69
Xbee API Operation (AP Parameter = 1)69
Xbee API Operation-With Escape Characters (AP Parameter = 2)69
Xbee Escape Characters70
Xbee UART Frame Data70
Checksum71
Xbee API UART Exchanges71
AT Commands71
Transmitting and Receiving RF Data71
Remote at Commands72
Supporting the Xbee API72
Xbee Frame Data73
AT Command73
AT Command - Queue Parameter Value74
Transmit Request74
Explicit Addressing Command Frame76
Remote at Command Request78
AT Command Response79
Modem Status79
Transmit Status80
Route Information Packet80
Aggregate Addressing Update81
Receive Packet82
Explicit Rx Indicator83
Data Sample Rx Indicator84
Node Identification Indicator85
Remote Command Response86
Appendix A: Xbee/Xbee-PRO Terms and Definitions87
Appendix B: Agency Certifications88
United States (FCC)88
OEM Labeling Requirements88
FCC Notices88
FCC-Approved Antennas (2.4 Ghz)89
Xbee RF Module High Gain Antenna Summary91
Europe (ETSI)93
OEM Labeling Requirements93
Restrictions93
Declarations of Conformity93
Approved Antennas94
Canada (IC)94
Labeling Requirements94
Japan (Telec)95
Labeling Requirements95
Australia (C-Tick)95
Appendix C: Additional Information96
1-Year Warranty96

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