
TABLE OF CONTENTS
1. INTRODUCTION..................................................................................................................................1
1.1 Why Spread Spectrum?.....................................................................................................................1
1.2 Frequency Hopping vs. Direct Sequence.........................................................................................2
2. RADIO OPERATION............................................................................................................................4
2.1. Synchronization and Registration...................................................................................................4
2.2. Data Transmission...........................................................................................................................5
2.2.1. Point-to-Point ........................................................................................................................5
2.2.2. Point-to-Multipoint................................................................................................................6
2.2.3. TDMA Mode.........................................................................................................................6
2.2.4. CSMA Mode .........................................................................................................................8
2.2.5. Full Duplex Communication.................................................................................................8
2.2.6. Error-free Packet Transmission Using ARQ.........................................................................8
2.3. Modes of Operation.........................................................................................................................9
2.3.1. Control and Data Modes........................................................................................................9
2.3.2. Sleep Mode..........................................................................................................................10
2.3.3. Low Power Mode and Duty Cycling...................................................................................10
3. PROTOCOL MODES..........................................................................................................................11
3.1. Packet Formats..............................................................................................................................12
3.1.1. Data Packet..........................................................................................................................13
3.1.3. Connect Packet....................................................................................................................13
3.1.4. Disconnect Packet (base only, receive only)......................................................................13
4. MODEM INTERFACE........................................................................................................................14
4.1. Interfacing to 5 Volt Systems........................................................................................................15
5. MODEM COMMANDS......................................................................................................................16
5.1. Serial Commands..........................................................................................................................16
5.2. Network Commands......................................................................................................................17
5.3. Protocol Commands......................................................................................................................19
5.4. Status Commands..........................................................................................................................21
5.5. Memory Commands......................................................................................................................22
5.6. Modem Command Summary........................................................................................................23
6. WIT2410 DEVELOPER’S KIT...........................................................................................................24
6.1. COM24..........................................................................................................................................24
6.2. Demonstration Procedure..............................................................................................................25
6.3. Troubleshooting ............................................................................................................................26
7. APPENDICES......................................................................................................................................28
7.1. Technical Specifications ...............................................................................................................28
7.1.1. Power Specifications...........................................................................................................28
7.1.2. RF Specifications.................................................................................................................28
7.2.2. Mechanical Specifications...................................................................................................28
7.3. Serial Connector Pinouts...............................................................................................................29
7.4. Approved Antennas.......................................................................................................................29
7.5. Technical Support .........................................................................................................................29
7.6. Mechanical Drawing.....................................................................................................................30
7.7. Warranty........................................................................................................................................31