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
Warning! It is critical that only one neutral to ground bond be made at the service
entrance equipment as defined by the National Electric Code.
TCU / CCU / Repeater Remote Antennas & Coax on Towers
Ground all antennas to their mounts or masts by the ground kits on the coaxial cable connected
to the CGBs (Coax Ground Bars). This includes the GPS and WAN antennas, if applicable.
Ground all CGBs properly to provide adequate protection in the event of a lightning strike on
Itron’s antennas or antenna masts.
Warning! Do not install separate antenna ground connections unless specified by the
antenna’s manufacturer.
Grounding Remote Antennas and Coax on Towers
1. Mount the CGB, without stand-off (cherry) insulators, to the grounded steel antenna support
structure (for example, on a monopole, lattice tower, or water tank) using UL approved
mounting devices.
–
You can use ground clamps to mount the CGB to available flanges or coax port rims, for
instance.
–
You can use steel straps to attach the CGB to a monopole if no convenient clamping
surfaces are present.
2. Make sure that all connecting surfaces are clean -- free of dirt, oil, and corrosion and polish
galvanized surfaces with a steel brush.
Note: Do not drill holes or use exothermic welds to connect ground leads to a steel tower
except on steel tabs or flanges specifically designed for that purpose. Holes and/or
exothermic welding can negatively impact the structural integrity of the tower and
increase chances of corrosion.
3. If the steel antenna support structure is not properly grounded, or if the structure is made of a
non-conductive material such as wood or concrete, then you can use a 4/0 AWG stranded
green insulated "home run" to connect the upper CGBs to Itron’s ground system.
4. Route the home run either inside or outside a monopole. Specific CGB connection
procedures are described in the procedures under Installing Coax Ground Kits on page
106.
Installing Coax Ground Kits
This section outlines the procedures to follow when using ground kits for the following types of
installations:
■
At the top of a tower on page 107
23 June 2020 TDC-0971-012 Itron, Inc. Page 116 of 134
CCU 100 and Repeater 100 Installation Guide F Grounding Specifications