© MiMOMax Wireless Ltd
Tornado Product Manual
3
TABLE OF CONTENTS
ABBREVIATIONS AND ACRONYMS ................................................................................................................................... 5
1 TORNADO SYSTEM OVERVIEW ................................................................................................................................. 7
1.1 NETWORK DIGITAL LINKS (NDL) .......................................................................................................................................7
1.2 MULTIPOINT DIGITAL LINKS (MDL) ...................................................................................................................................8
1.3 OPTIMISED PROTECTION VARIANT (OPV) ..........................................................................................................................9
2 SAFETY 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
3 TORNADO 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
3.2.5 Transmit 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
4 SETTING UP ON THE BENCH .................................................................................................................................... 17
4.1 TESTING THE NETWORK SETUP.......................................................................................................................................18
5 CONFIGURATION CONTROL AND MONITORING SYSTEM (CCMS) ........................................................................... 21
6 CHANGING OPERATING FREQUENCY AND POWER CALIBRATION ........................................................................... 22
6.1 INTRODUCTION ...........................................................................................................................................................22
6.2 EQUIPMENT REQUIRED: POWER METER ...........................................................................................................................22
6.3 PROCESS OVERVIEW ....................................................................................................................................................22
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