Murata Electronics North America 5811M Manual Do Utilizador
TABLE OF CONTENTS
1. INTRODUCTION .................................................................................................................. 1
1.1. Why Spread Spectrum? .................................................................................................. 1
1.2. Frequency Hopping vs. Direct Sequence........................................................................ 3
1.2. Frequency Hopping vs. Direct Sequence........................................................................ 3
2. RADIO OPERATION ............................................................................................................ 4
2.1. Synchronization and Registration .................................................................................. 4
2.2. Data Transmission ......................................................................................................... 5
2.2. Data Transmission ......................................................................................................... 5
2.2.1. Point-to-Point ........................................................................................................ 5
2.2.2. Point-to-Multipoint ................................................................................................. 6
2.2.3. Handle Assignment ............................................................................................... 7
2.5.8. TDMA Operation ................................................................................................... 7
2.2.5. Full Duplex Communication .................................................................................. 9
2.2.6. Error-free Packet Transmission Using ARQ.......................................................... 9
2.2.2. Point-to-Multipoint ................................................................................................. 6
2.2.3. Handle Assignment ............................................................................................... 7
2.5.8. TDMA Operation ................................................................................................... 7
2.2.5. Full Duplex Communication .................................................................................. 9
2.2.6. Error-free Packet Transmission Using ARQ.......................................................... 9
2.3. Modes of Operation ..................................................................................................... 11
2.3.1. Control and Data Modes ..................................................................................... 11
2.3.2. Sleep Mode......................................................................................................... 11
2.3.4. RF Flow Control Mode ........................................................................................ 11
2.3.2. Sleep Mode......................................................................................................... 11
2.3.4. RF Flow Control Mode ........................................................................................ 11
3. PROTOCOL MODES ......................................................................................................... 13
3.1.3. Connect Packet................................................................................................... 15
3.1.4. Disconnect Packet (base only, receive only)...................................................... 15
3.1.4. Disconnect Packet (base only, receive only)...................................................... 15
4. MODEM INTERFACE......................................................................................................... 16
4.1. Interfacing to 5 Volt Systems ....................................................................................... 17
4.2. Evaluation Unit and Module Differences ...................................................................... 17
4.3. Three-Wire Operation .................................................................................................. 17
4.2. Evaluation Unit and Module Differences ...................................................................... 17
4.3. Three-Wire Operation .................................................................................................. 17
5. MODEM COMMANDS........................................................................................................ 18
5.1. Serial Commands ........................................................................................................ 18
5.2. Network Commands..................................................................................................... 19
5.3. Protocol Commands .................................................................................................... 20
5.4. Status Commands ....................................................................................................... 22
5.5. Memory Commands..................................................................................................... 23
5.6. Modem Command Summary ....................................................................................... 24
5.2. Network Commands..................................................................................................... 19
5.3. Protocol Commands .................................................................................................... 20
5.4. Status Commands ....................................................................................................... 22
5.5. Memory Commands..................................................................................................... 23
5.6. Modem Command Summary ....................................................................................... 24
6. WIT5811 DEVELOPER’S KIT ............................................................................................ 25
6.1. WinCOM24 .................................................................................................................. 26
6.2. Demonstration Procedure ............................................................................................ 26
6.3. Troubleshooting ........................................................................................................... 27
6.2. Demonstration Procedure ............................................................................................ 26
6.3. Troubleshooting ........................................................................................................... 27
7. APPENDICES .................................................................................................................... 29
7.1. Technical Specifications............................................................................................... 29
7.1.1 Ordering
Information .......................................................................................... 29
7.1.2. Power Specifications........................................................................................... 29
7.1.3. RF Specifications ................................................................................................ 29
7.1.4. Mechanical Specifications................................................................................... 29
7.1.3. RF Specifications ................................................................................................ 29
7.1.4. Mechanical Specifications................................................................................... 29
7.2. Serial Connector Pinout ............................................................................................... 30
7.3. Approved Antennas ..................................................................................................... 30
7.4. Technical Support ........................................................................................................ 31
7.5. Reference Design ........................................................................................................ 32
7.3. Approved Antennas ..................................................................................................... 30
7.4. Technical Support ........................................................................................................ 31
7.5. Reference Design ........................................................................................................ 32