User's Manual

Powerwave Fiber Optics Preface
VM100 56/EN – User’s Manual Rev. P1A9-Draft 2004-11 iii
Contents
Abbreviations .................................................................................................................................. v
1. Safety ......................................................................................................................................... 1-1
Human Exposure of RF Radiation ..................................................................................... 1-3
Repeater Antennas ........................................................................................................ 1-3
Installation and Maintenance of Antenna Systems ....................................................... 1-3
Radiation Exposure ....................................................................................................... 1-4
Radiation Safety Distances ........................................................................................... 1-4
Static Electricity ................................................................................................................. 1-6
2. Introduction ............................................................................................................................... 2-1
Fiber Optics in General ...................................................................................................... 2-2
Fiber Optic Transmission Versus Electrical Transmission ........................................... 2-3
Duplex Transmission .................................................................................................... 2-4
System Building Blocks ..................................................................................................... 2-5
FON, Fiber Optic Node ................................................................................................. 2-6
FOU, Fiber Optic Unit .................................................................................................. 2-6
BMU, Base Station Master Unit ................................................................................... 2-7
RMU, Repeater Master Unit ......................................................................................... 2-7
FOR, Fiber Optic Repeater ........................................................................................... 2-7
OCM, Optical Converter Module ................................................................................. 2-8
RH, Remote Hub ........................................................................................................... 2-9
3. FON, Fiber Optic Node ............................................................................................................. 3-1
Functional Description ....................................................................................................... 3-1
Block Diagram .............................................................................................................. 3-2
R2R Communication .................................................................................................... 3-4
Gateway Node ............................................................................................................... 3-5
Alarm ............................................................................................................................ 3-5
Power ............................................................................................................................ 3-5
Backup Power ............................................................................................................... 3-5
Design ................................................................................................................................ 3-6
The FON Board ............................................................................................................. 3-6
Indicators ....................................................................................................................... 3-6
RF and Optical Ports ..................................................................................................... 3-8
Connection Ports ........................................................................................................... 3-9
Operational Control ............................................................................................................ 3-11
4. RF Over Fiber ........................................................................................................................... 4-1
The RF Modulated Signal Paths ........................................................................................ 4-2
Downlink RF Signal Path ............................................................................................. 4-3
Uplink RF Signal Path .................................................................................................. 4-8
FOU, Fiber Optic Unit .................................................................................................. 4-10
Noise, Intermodulation and Dynamic Signal Range ..................................................... 4-11
Simplex Transmission ........................................................................................................ 4-12
Duplex Transmission ......................................................................................................... 4-13