Contents
Page
iii
GPS synchronization description ......................................................................................................... 2-52
Universal GPS (UGPS) ........................................................................................................................... 2-52
CMM5 ........................................................................................................................................................ 2-52
CMM5 Controller Module ....................................................................................................................... 2-55
CMM5 Injector Module ........................................................................................................................... 2-56
CMM5 Injector Compatibility Matrix .................................................................................................... 2-56
CMM5 Specifications .............................................................................................................................. 2-57
CMM4 (Rack Mount) .............................................................................................................................. 2-58
CMM4 (Cabinet with switch) ................................................................................................................ 2-61
CMM4 (Cabinet without switch) .......................................................................................................... 2-61
CMM3/CMMmicro ................................................................................................................................... 2-62
Installing a GPS receiver ............................................................................................................................... 2-64
GPS receiver location ............................................................................................................................ 2-64
Mounting the GPS receiver ................................................................................................................... 2-65
Cabling the GPS Antenna ...................................................................................................................... 2-66
Installing and connecting the GPS LPU .............................................................................................. 2-66
Ordering the components ............................................................................................................................ 2-67
Chapter 3: System planning .......................................................................................................................... 3-1
Typical deployment ......................................................................................................................................... 3-2
ODU with PoE interface to PSU ............................................................................................................. 3-2
Site planning ..................................................................................................................................................... 3-7
Site selection for PMP/PTP radios ......................................................................................................... 3-7
Power supply site selection .................................................................................................................... 3-8
Maximum cable lengths ........................................................................................................................... 3-8
Grounding and lightning protection ...................................................................................................... 3-8
ODU and external antenna location .................................................................................................... 3-10
ODU ambient temperature limits ......................................................................................................... 3-10
ODU wind loading .................................................................................................................................. 3-11
Hazardous locations ............................................................................................................................... 3-15
Drop cable grounding points................................................................................................................ 3-15
Lightning Protection Unit (LPU) location ........................................................................................... 3-16
Radio Frequency planning ............................................................................................................................ 3-17
Regulatory limits ..................................................................................................................................... 3-17
Conforming to the limits ....................................................................................................................... 3-17
Available spectrum ................................................................................................................................ 3-17
Analyzing the RF Environment ............................................................................................................ 3-18
Channel bandwidth ................................................................................................................................ 3-18
Anticipating Reflection of Radio Waves ............................................................................................. 3-18
Obstructions in the Fresnel Zone ........................................................................................................ 3-19
Planning for co-location ........................................................................................................................ 3-19
Frame length ........................................................................................................................................... 3-21
Frame start .............................................................................................................................................. 3-22
Frame parameters .................................................................................................................................. 3-23
PMP – LTE co-location tool ................................................................................................................... 3-24
Multiple OFDM Access Point Clusters ................................................................................................. 3-25
Considerations on back-to-back frequency reuse ............................................................................ 3-28