Installation Guide
Table Of Contents
- CCU 100 and Repeater 100 Installation Guide
- Important Safety and Compliance Information
- 1 Before You Begin
- 2 CCU/Repeater Basics
- 3 Planning a CCU/Repeater Installation
- 4 Installing the Collector or Repeater
- 5 Battery Care and Maintenance
- A Detailed Collector or Repeater Specifications
- B Port and Protocol Requirements
- C Status and Diagnostics
- D Changing the Repeater Password
- E Antenna Line Sweeps Procedure
- Anritsu Site Master Calibration
- Testing on a Network Device with a Remotely-Mounted 915 MHz Antenna
- Understanding Party Responsibilities
- Itron ChoiceConnect Antenna and Line Sweep Test Form
- Itron ChoiceConnect 915 MHz Antenna Specifications
- Typical Coaxial Cable Specification Summary Table
- Sample Sweeps Output
- F Grounding Specifications
- Understanding Grounding and Bonding
- Exterior Grounding System Design for Concentrators
- Equipment Buried Ground Ring
- Chemical Ground Rod Installation
- Itron Concentrator Equipment
- Installing Coax Ground Kits
- Collector Sites with Indoor Itron TCU / CCU Equipment
- Grounding Rooftop Network Devices
- Down Conductor Installation
- Cold Water Pipe Option
- Building Steel Option
- Antenna and Coax Grounding - Rooftops
- Grounding antennas on rooftops
- Cable Tray Grounding
- Water Tower Grounding
- New Wooden and Concrete Antenna Poles
- Equipment Shelter Grounding
- Repeaters on Communication Tower Sites
- Repeaters on Rooftops
- Multiple Story Site Ground System
- Down Conductors Installation - Building / Shelter Penetrations
- Down Conductors Installation - Limits of Bend Radius
- Down Conductors Installation Connection Methods
- Cable Entrance Facilities
- Clamp-On Ground Resistance Testing
- Understanding Party Responsibilities
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At the bottom of a tower on page 107
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At the end of an ice bridge on page 107
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With GPS and WAN antennas on page 108
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Grounding a coax ground kits on page 108.
Installing Coax Ground Kits at the Top of a Tower
Install one CGB at the top of the tower as close as possible to the tower top coax ground kits.
Install the CGB without stand-off (cherry) insulators to ensure a good ground bond on grounded
metal towers.
If antenna placement and coax ground kit lead lengths require the use of multiple sector ground
bars (for example, the ground leads do not all reach the single CGB), mount the sector ground
bars in the same manner. Install coax ground kits on the coax as close to the antenna jumpers as
possible and connected to the CGB or sector ground bars using two- hole lugs as specified in
Exterior Grounding System Design for Collector Sites and Repeaters on page 97.
1. If a home run is required, connect the tower top CGB to the middle or lower ground bars with
a single run of 4/0 AWG stranded insulated wire.
2. Mount any other sector ground bars with stand-off (cherry) insulators and separately
connect to the CGB with No. 2 AWG stranded insulated wire.
3. If the antennas are flush-mounted or otherwise located such that there is no space to install
coax ground kits prior to the coax entering the antenna support structure (for example, with a
flagpole tower), you can eliminate the upper coax ground kits and associated CGB.
However, coax ground kits must still be installed at the base of the antenna support
structure.
Installing Coax Ground Kits at the Bottom of the Tower
1. Install one CGB at the base of the tower with stand-off (cherry) insulators, directly below the
point at which the coax cable transitions from vertical to horizontal.
2. Install coax ground kits on the vertical portion on the coax and connected to the CGB using
two-hole lugs as specified under Exterior Grounding System Design for
Concentrators on page 108.
Important! Allow as straight a path to ground as possible. Connect the CGB to
the tower BGR with two vertical runs No. 2 AWG BTCW.
In general, the antenna and coax grounding and bonding on a water tower is identical to a
monopole configuration with the leg of the tower supporting the antenna cables being the
"monopole". Except, do not drill or exothermic weld on any part of the water tower. Use a
"home run" as needed.
23 June 2020 TDC-0971-012 Itron, Inc. Page 117 of 134
CCU 100 and Repeater 100 Installation Guide F Grounding Specifications