©MiMOMax Wireless Ltd
Tornado Product Manual
3
TABLE OF CONTENTS
ABBREVIATIONS AND ACRONYMS ...................................................................................................................................5
1TORNADO SYSTEM OVERVIEW.................................................................................................................................7
1.1 NETWORK DIGITAL LINKS (NDL).......................................................................................................................................7
1.2 MULTIPOINT DIGITAL LINKS (MDL)...................................................................................................................................8
1.3 OPTIMISED PROTECTION VARIANT (OPV)..........................................................................................................................9
2SAFETY WARNINGS ................................................................................................................................................ 11
2.1 MODIFICATIONS..........................................................................................................................................................11
2.2 TRANSMITTER ANTENNA ...............................................................................................................................................11
2.3 SAFETY DISTANCE ........................................................................................................................................................11
2.4 FCC RF EXPOSURE STATEMENT .....................................................................................................................................11
2.5 ELECTRICAL SAFETY CABLE SCREENING..............................................................................................................................11
2.6 MAINS CONNECTION....................................................................................................................................................11
2.7 FCC 15.19 STATEMENT ...............................................................................................................................................12
2.8 FCC 15.105(B)STATEMENT.........................................................................................................................................12
3TORNADO RADIO UNIT OVERVIEW ........................................................................................................................ 13
3.1 CONNECTORS .............................................................................................................................................................13
3.2 DIGITAL PROCESSING SYSTEM ........................................................................................................................................14
3.2.1 Power supply ..................................................................................................................................................14
3.2.2 Central Processor Unit ....................................................................................................................................14
3.2.3 FPGA ...............................................................................................................................................................14
3.2.4 Receive Converters .........................................................................................................................................14
3.2.5Transmit Converters .......................................................................................................................................14
3.2.6 Reference & Clock Synthesisers ......................................................................................................................14
3.2.7 Dual Ethernet..................................................................................................................................................14
3.2.8 Dual Serial ......................................................................................................................................................15
3.2.9 GPIO................................................................................................................................................................15
3.2.10 Alarm ..............................................................................................................................................................15
3.2.11 Front Panel LEDs.............................................................................................................................................15
3.3 RECEIVER RF/IF SECTIONS ............................................................................................................................................15
3.3.1 Front End ........................................................................................................................................................15
3.3.2 Mixer and LO Buffer .......................................................................................................................................15
3.3.3 IF and AGC Circuitry........................................................................................................................................15
3.3.4 Local Oscillator ...............................................................................................................................................15
3.4 TRANSMITTER RF/IF SECTIONS ......................................................................................................................................16
3.4.1 Forward Signal Path .......................................................................................................................................16
3.4.2 Feedback Signal Path......................................................................................................................................16
3.4.3 Local Oscillator ...............................................................................................................................................16
3.4.4 Internal Duplexer............................................................................................................................................16
4SETTING UP ON THE BENCH....................................................................................................................................17
4.1 TESTING THE NETWORK SETUP.......................................................................................................................................18
5CONFIGURATION CONTROL AND MONITORING SYSTEM (CCMS) ...........................................................................21
6CHANGING OPERATING FREQUENCY AND POWER CALIBRATION........................................................................... 22
6.1 INTRODUCTION ...........................................................................................................................................................22
6.2 EQUIPMENT REQUIRED:POWER METER...........................................................................................................................22
6.3 PROCESS OVERVIEW ....................................................................................................................................................22
