Murata Electronics North America 2492 ユーザーズマニュアル
TABLE OF CONTENTS
1. INTRODUCTION ........................................................................................................................ 1
1.1. Why Spread Spectrum? ........................................................................................................... 1
1.2. quency Hopping vs. Direct Sequence ...................................................................................... 2
1.2. quency Hopping vs. Direct Sequence ...................................................................................... 2
2. RADIO OPERATION ................................................................................................................ 5
2.1. nchronization and Registration............................................................................................... 5
2.2. ransmission ............................................................................................................................ 6
2.2. ransmission ............................................................................................................................ 6
2.2.1. nt-to-Point ....................................................................................................... 6
2.2.2. nt-to-Multipoint .............................................................................................. 7
2.2.3. Assignment ..................................................................................................... 7
2.2.4. Operation ........................................................................................................ 8
2.2.5. Duplex Communication ................................................................................ 10
2.2.6. r-free Packet Transmission Using ARQ. ...................................................... 10
2.2.2. nt-to-Multipoint .............................................................................................. 7
2.2.3. Assignment ..................................................................................................... 7
2.2.4. Operation ........................................................................................................ 8
2.2.5. Duplex Communication ................................................................................ 10
2.2.6. r-free Packet Transmission Using ARQ. ...................................................... 10
2.3. des of Operation ................................................................................................................... 11
2.3.1. Data Modes ................................................................................................... 11
2.3.2. Mode ............................................................................................................. 11
2.3.3. wer Mode and Duty Cycling ........................................................................ 12
2.3.4. Control Mode ................................................................................................ 12
2.3.5. with 802.11b Networks ................................................................................. 13
2.3.6. pean Union Settings ...................................................................................... 13
2.3.2. Mode ............................................................................................................. 11
2.3.3. wer Mode and Duty Cycling ........................................................................ 12
2.3.4. Control Mode ................................................................................................ 12
2.3.5. with 802.11b Networks ................................................................................. 13
2.3.6. pean Union Settings ...................................................................................... 13
3. PROTOCOL MODES .............................................................................................................. 14
Note on Using Protocol Mode 4 .......................................................................................... 16
3.1.1. Data Packet .............................................................................................................. 17
3.1.1. Data Packet .............................................................................................................. 17
3.1.3. Connect Packet............................................................................................ 18
3.1.4. nly, receive only)........................................................................................... 18
3.1.4. nly, receive only)........................................................................................... 18
4. MODEM INTERFACE .............................................................................................................. 19
4.1. ng to 5 Volt Systems ............................................................................................................. 20
4.2. on Unit and OEM Module Differences ................................................................................. 20
4.3. Wire Operation..................................................................................................................... 20
4.4. wer-On Reset Requirements................................................................................................. 21
4.2. on Unit and OEM Module Differences ................................................................................. 20
4.3. Wire Operation..................................................................................................................... 20
4.4. wer-On Reset Requirements................................................................................................. 21
5. MODEM COMMANDS............................................................................................................. 22
5.1. rial Commands ..................................................................................................................... 22
5.2. ork Commands................................................................................................................... 24
5.3. ocol Commands.................................................................................................................... 27
5.4. Commands ........................................................................................................................... 30
5.5. mory Commands .................................................................................................................. 31
5.6. dem Command Summary ..................................................................................................... 32
5.2. ork Commands................................................................................................................... 24
5.3. ocol Commands.................................................................................................................... 27
5.4. Commands ........................................................................................................................... 30
5.5. mory Commands .................................................................................................................. 31
5.6. dem Command Summary ..................................................................................................... 32
6. WIT2492 DEVELOPER’S KIT ................................................................................................ 33
7. WinCOM..................................................................................................................................... 34
7.1. ng the program...................................................................................................................... 36