User's Manual
Table Of Contents
- 1. XTend RF Module
- 2. RF Module Operation
- 3. RF Module Configuration
- Programming Examples
- Command Reference Table
- Command Descriptions
- %V (Board Voltage) Command
- AM (Auto-set MY) Command
- AP (API Enable) Command
- AT (Guard Time After) Command
- BD (Interface Data Rate) Command
- BR (RF Data Rate) Command
- BT (Guard Time Before) Command
- CC (Command Sequence Character) Command
- CD (GPO2 Configuration) Command
- CF (Number Base) Command
- CN (Exit AT Command Mode) Command
- CS (GPO1 Configuration) Command
- CT (Command Mode Timeout) Command
- DB (Received Signal Strength) Command
- DT (Destination Address) Command
- E0 (Echo Off) Command
- E1 (Echo On) Command
- ER (Receive Error Count) Command
- FH (Force Wake-up Initializer) Command
- FL (Software Flow Control) Command
- FS (Forced Synch Time) Command
- FT (Flow Control Threshold) Command
- GD (Receive Good Count) Command
- HP (Hopping Channel) Command
- HT (Time before Wake-up Initializer) Command
- HV (Hardware Version) Command
- ID (Modem VID) Command
- KY (AES Encryption Key) Command
- LH (Wake-up Initializer Timer) Command
- MD (RF Mode) Command
- MK (Address Mask) Command
- MT (Multi-transmit) Command
- MY (Source Address) Command
- NB (Parity) Command
- PB (Polling Begin Address) Command
- PD (Minimum Polling Delay) Command
- PE (Polling End Address) Command
- PK (Maximum RF Packet Size) Command
- PL (TX Power Level) Command
- PW (Pin Wake-up) Command
- RB (Packetization Threshold) Command
- RC (Ambient Power - Single Channel) Command
- RE (Restore Defaults) Command
- RM (Ambient Power - All Channels) Command
- RN (Delay Slots) Command
- RO (Packetization Timeout) Command
- RP (RSSI PWM Timer) Command
- RR (Retries) Command
- RT (GPI1 Configuration) Command
- SB (Stop Bits) Command
- SH (Serial Number High) Command
- SL (Serial Number Low) Command
- SM (Sleep Mode) Command
- ST (Time before Sleep) Command
- TP (Board Temperature) Command
- TR (Transmit Error Count) Command
- TT (Streaming Limit) Command
- TX (Transmit Only) Command
- VL (Firmware Version - Verbose)
- VR (Firmware Version - Short) Command
- WA (Active Warning Numbers) Command
- WN (Warning Data) Command
- WR (Write) Command
- WS (Sticky Warning Numbers) Command
- API Operation
- 4. RF Communication Modes
- Appendix A: Agency Certifications
- Appendix B: Development Guide
- Appendix C: Additional Information
©2013DigiInternationalInc. 4
1.XTendRFModule
The XTend RF Module was engineered to provide customers with an
easy-to-use RF solution that provides reliable delivery of critical
data between remote devices. The module transfers a standard
asynchronous serial data stream, operates within the ISM 900 MHz
frequency band and sustains up to 115.2 Kbps data throughput.
Key Features
Worldwide Acceptance
FCC Approved (USA) Refer to Appendix A [p55] for FCC Requirements.
Systems that include XTend RF Modules inherit Digi’s Certifications.
ISM (Industrial, Scientific & Medical) license-free 902-928 MHz frequency band
Manufactured under ISO 9001:2000 registered standards
ESD (Electrostatic Discharge) immunity - ESD-hardened and IEC1000-4-2 (Level 4) tested
Long Range Data Integrity
1 Watt Power Output (variable 1mW - 1W)
Range (@9,600 bps throughput data rate):
• Indoor/Urban: up to 3000’ (900 m)
• Outdoor RF line-of-sight:
up to 14 miles (22 km) w/dipole antenna
• Outdoor RF line-of-sight:
up to 40 miles (64 km) w/high-gain antenna
Range (@115,200 bps throughput data rate):
• Indoor/Urban: up to 1500’ (450 m)
• Outdoor RF line-of-sight:
up to 7 miles (11 km) w/dipole antenna
• Outdoor RF line-of-sight:
up to 20 miles (32 km) w/high-gain antenna
Continuous RF data stream up to 115,200 bps
Receiver Sensitivity: -110 dBm (@ 9600 baud),
–100 dBm (@ 115200 baud)
Advanced Networking & Security
True Peer-to-Peer (no Master device required),
Point-to-Point, Point-to-Multipoint & Multidrop
Retries and Acknowledgements
FHSS (Frequency Hopping Spread Spectrum)
10 hopping channels, each with over 65,000
unique network addresses available
256-bit AES Encryption
- performed using a FIPS 197 certified
implementation on a Phillips LPC microcontroller
128-bit AES for international variant
Low Power
2.8 - 5.5 V Supply Voltage
Pin, Serial Port and Cyclic
software sleep modes supported
Shutdown pin enables hardware sleep mode
that draws only 5 µA (typical)
Easy-to-Use
No configuration necessary for out-of box
RF communications
Free X-CTU Software
(Testing and configuration software)
RF Modules easily configured using
standard AT & binary commands
Transparent Operation
(Wireless links replace serial wires)
API Operation
(Frame-based communications)
Portable
(small form-factor easily designed into
a wide range of data systems)
Software-selectable I/O interfacing rates
Multiple data formats supported
(parity, start and stop bits, etc.)
XII™ Interference Immunity
No Master/Slave setup dependencies