User's Manual Part 1

Table Of Contents
Contents
SFP and Aux Ethernet interfaces ............................................................................................... 3-5
Site planning....................................................................................................................................... 3-8
Grounding and lightning protection .......................................................................................... 3-8
Lightning protection zones ......................................................................................................... 3-8
Site grounding system.............................................................................................................. 3-10
ODU and external antenna location ........................................................................................ 3-10
ODU wind loading ..................................................................................................................... 3-11
PSU DC power supply............................................................................................................... 3-12
PSU location .............................................................................................................................. 3-12
Drop cable grounding points ................................................................................................... 3-13
LPU location ............................................................................................................................... 3-13
Multiple LPUs ............................................................................................................................ 3-14
Radio spectrum planning ................................................................................................................ 3-16
General wireless specifications ............................................................................................... 3-16
Regulatory limits ....................................................................................................................... 3-17
Conforming to the limits........................................................................................................... 3-17
Available spectrum ................................................................................................................... 3-18
Channel bandwidth ................................................................................................................... 3-18
Frequency selection .................................................................................................................. 3-19
Avoidance of weather radars (USA only) ............................................................................... 3-20
Link planning .................................................................................................................................... 3-21
PTP LINKPlanner ....................................................................................................................... 3-21
Range and obstacles ................................................................................................................. 3-21
Path loss ..................................................................................................................................... 3-22
Adaptive modulation ................................................................................................................ 3-22
Calculating data rate capacity .................................................................................................. 3-23
Planning for connectorized units .................................................................................................... 3-25
When to install connectorized units ........................................................................................ 3-25
Choosing external antennas .................................................................................................... 3-25
Calculating RF cable length (5.8 GHz FCC only) ..................................................................... 3-26
Data network planning .................................................................................................................... 3-27
Ethernet interfaces .................................................................................................................... 3-27
Layer 2 control protocols .......................................................................................................... 3-27
Ethernet port allocation ............................................................................................................ 3-28
VLAN membership .................................................................................................................... 3-28
Priority for management traffic ............................................................................................... 3-28
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