22Paul Odlyzko

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Project IEEE P802.22 Working Group for Wireless
Regional Area Networks (WRANs) Submission Title
Canopy Installation Overview Date Submitted
17 November 2004 Source Paul Odlyzko Company
Motorola Address 1301 E. Algonquin Rd.,
Schaumburg, IL, 60196.1065, USA Voice(847)
538-5234, FAX ???, E-MailPaul.Odlyzko_at_motoro
la.com Re General installation requirements
for fixed wireless access systems. Abstract Pre
sentation on general installation requirements
for fixed wireless access systems. Purpose For
information only Notice This document has been
prepared to assist the IEEE P802.22 WG. It is
offered as a basis for discussion and is not
binding on the contributing individual(s) or
organization(s). The material in this document is
subject to change in form and content after
further study. The contributor(s) reserve(s) the
right to add, amend or withdraw material
contained herein. Release The contributor
acknowledges and accepts that this contribution
becomes the property of IEEE and may be made
publicly available by P802.22.
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Canopy Installation Overview
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Topics to be Discussed

• Site Identification
• RF analysis
• Installation
• Cost
• Installer Certifications

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Site Identification General Requirements

• Tall structure such as radio towers, buildings,
  and water towers are ideal radio sites
• Source of power is needed
• AC, DC, Solar
• Data source must be available
• IPOP (Internet Point of Presence)
• T1/E1, Satellite, fiber, backhaul, etc.
• Is the frequency you plan to use available?

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Site Identification Visual Validation

• How high does the radio need to be mounted?
• Are any major obstructions between the tower
  radios and potential remote installations?
• What is the roof material made out of?
• Many owners of membrane roofs will not allow you
  to access the roof when the temperature is below
  320.

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Site Identification Physical Protection

• Is the site properly grounded?
• Is there lightning protection?
• Is there a radio shed for equipment that cannot
  survive outdoor conditions?
• Can you access the site after hours to perform
  maintenance?
• Can the tower physically support the equipment
  AND a climber?

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RF Analysis - Conduct Potential Site Assessments

• Begin identifying locations for the radios
• Study local and topographical maps
• Drive the proposed coverage area
• Take photographs
• If necessary, use a Spectrum Analyzer to sweep
  the proposed coverage area to determine what type
  of RF activity is present.
• Canopy Subscriber Modules and Backhaul Slave
  modules (10 or 20 Mbps) can be used as spectrum
  analyzers.
• The Canopy 45 Mbps backhaul has a Link Calculator
  tool that should be used when assessing potential
  paths.

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RF Analysis - Graphical Spectrum Analyzer Display

• Enable the Spectrum Analyzer from the SM or BHS
  Expanded Stats web page.
• All frequencies in the band are scanned and
  reported.
• Green bars show the latest reading.
• Yellow tick marks show the maximum reading over
  time.
• Red tick marks indicate strong readings (-40 dBm
  or greater).
• Select Enable to refresh the readings, or set the
  page to auto-refresh.
• Select Disable to re-establish SM or BHS
  connectivity to APs or BHMs.
• Enabling Spectrum Analyzer will drop the RF link.
  If not disabled, the Spectrum Analyzer will time
  out after 15 minutes.

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Installation LPS/Grounding

• Outdoor Considerations
• Masts, Towers
• Transmission lines
• Outdoor enclosures
• All cable entering or leaving a structure
• Radios
• Indoor Consideration
• Equipment racks
• Equipment

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Installation Placement considerations

• Canopy radios must NOT be mounted directly to
  lightning rods
• Radios should be 2 or more below the top of
  mounting structure.
• Properly designed Lightning Protection Systems
  (LPS) should provide a path for current to travel
  to ground.

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Installation - LPS Components

• Air Terminals Slender rods installed on roof or
  tower as defined by industry standard.
• Conductor Copper cabling that interconnect the
  air terminals and grounding plates.
• Ground Terminators Metal rods driven into the
  earth to guide lightning current harmlessly to
  ground.
• Surge Arrestors and Suppressors Devices
  installed in conjunction with a LPS to protect
  electrical wiring and electronic systems. Should
  be installed at point of entrance of cable into a
  building.

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Installation LPS Conductor
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Installation - Tools

• Safety Harness must be worn at all times when
  climbing.
• A multipoint safety harness can be purchased for
  approximately 270.
• Tower Climbing Safety Rescue (book by Comtrain)
  29.95. Contains ANSI, OSHA, and CSA climbing
  and tower requirements.

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Installation Basic Tools

• Punch down tool - 69.00
• Cat5 Cable tester - 79.00
• Cat5 Cable crimper - 45.00
• Fluke 110 Volt Meter -99.00
• Wire cutters, screw drivers, small socket set,
  tie wraps

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Installation Alignment and Configuration tools

• Laptop or iPAQ Needed for accessing Canopy web
  page via the Ethernet (RJ45) interface.
• Audio Tone headset for alignment RJ11 port on
  SM and BHSs produces volume, pitch, and cadence.
• Volume higher volume means less Jitter
• Pitch higher pitch means better RSSI
• Cadence tone interruption of .155 seconds
  every 2 seconds means the SM/BHS has registered.

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Installation Mounting considerations

• Distance limitations
• CAT5 328
• GPS LMR-200 cable 100
• CMM power 400
• Tower wind load must be taken into consideration
  when mounting reflector dishes

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Installation Platform Mount

• Platform made from angle iron.
• Pole is 2 conduit.
• Design for flat roof installs.
• Sandbags or cinder blocks used to weigh down
  structure base.

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Installation Pole Mount

• Canopy Backhaul with Reflector.
• RJ45 out of radio and into Surge Suppressor
• RJ45 out of Surge Suppressor and into Power
  adapter indoors.
• RJ45 our power adapter into network
• Surge Suppressor grounded with 10AWG copper to
  LPS.

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Installation - Canopy Cabling
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Installation Surge Suppressor

• Operating temperature is -40F to 131F
• Capacity 1500 Watts peak pulse dissipation with
  10µs /1000µs waveform, repetition rate (duty
  cycle) 0.01
• Clamp voltage 35V
• Internal Connectors RJ45
• Weighs .4lbs
• H 5.2 x W 5.0 x D1.7

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High level CMM2 wiring overview
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Installation Cost (not including radios)

• 4 Pair 24 AWG Shielded Category 5e Plenum cable
  approximately 0.60/foot
• LMR-200 GPS cabling approximately 0.80/foot
• Truck roll - 75-100 per instance
• 3rd Party site acquisition - 0-15,000
• 3rd Party site survey - 0-10,000
• Base installation - 500-10,000

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Installer Certifications/Insurance

• The Satellite Broadcasting and Communications
  Association (SBCA)
• No standard has been developed for wireless
  broadband. The SBCA certification is suggested
  for truck roll installation.
• Persons climbing must have proof of insurance
  for climbing and roof access.