Product Manual

Product Manual for Tornado Radio Unit
4
Table of Contents
Abbreviations And Acronyms .................................................................................................................................. 6
1 Tornado System Overview .............................................................................................................................. 9
1.1 Network Digital Links (NDL) .................................................................................................................... 9
1.2 Multipoint Digital Links (MDL) ................................................................................................................ 10
1.3 Optimised Protection Variant (OPV) ...................................................................................................... 11
2 Safety Warnings ............................................................................................................................................ 13
2.1 Modifications ......................................................................................................................................... 13
2.2 Transmitter Antenna .............................................................................................................................. 13
2.3 Safety Distance ..................................................................................................................................... 13
2.4 FCC RF Exposure Statement ................................................................................................................ 14
2.5 Electrical Safety Cable Screening ......................................................................................................... 14
2.6 Mains Connection.................................................................................................................................. 15
2.7 FCC 15.19 statement ............................................................................................................................ 15
2.8 FCC 15.105(b) statement ...................................................................................................................... 15
3 Tornado radio unit overview .......................................................................................................................... 16
3.1 Connectors ............................................................................................................................................ 16
3.2 Digital Processing System ..................................................................................................................... 17
3.2.1 Power Supply ................................................................................................................................ 17
3.2.2 Central Processor Unit ............................................................................................................................. 17
3.2.3 FPGA ....................................................................................................................................................... 17
3.2.4 Receive Converters .................................................................................................................................. 17
3.2.5 Transmit Converters ................................................................................................................................. 17
3.2.6 Reference & Clock Synthesisers .............................................................................................................. 17
3.2.7 Dual Ethernet ........................................................................................................................................... 17
3.2.8 Dual Serial ................................................................................................................................................ 18
3.2.9 GPIO ........................................................................................................................................................ 18
3.2.10 Alarm ...................................................................................................................................................... 18
3.2.11 Front Panel Leds .................................................................................................................................... 18
3.3 Receiver RF/IF Sections ....................................................................................................................... 18
3.3.1 Front End ................................................................................................................................................. 18
3.3.2 Mixer And Lo Buffer ................................................................................................................................. 18
3.3.3 If And Agc Circuitry .................................................................................................................................. 18
3.3.4 Local Oscillator ......................................................................................................................................... 18
3.4 Transmitter RF/IF Sections ................................................................................................................... 19
3.4.1 Forward Signal Path ................................................................................................................................. 19
3.4.2 Feedback Signal Path .............................................................................................................................. 19
3.4.3 Local Oscillator ......................................................................................................................................... 19
3.4.4 Internal Duplexer ...................................................................................................................................... 19