User's Manual
Table Of Contents
- Before You Begin
- CCU/Repeater Basics
- Planning a CCU/Repeater Installation
- Installing the Collector or Repeater
- Installation Overview
- Attaching the Local GPS/WAN Antennas
- Attaching the Direct Mount Standard (5.15 dBi) 900 MHz Antenna
- Attaching the Collector or Repeater
- Connecting Cables
- Installing a Local 4G WAN Antenna
- Installing the Battery
- Providing Power
- CCU Installation Wiring Diagram
- Tower Installation
- Solar Powered Installation
- Relocating a CCU or Repeater
- Battery Care and Maintenance
- Detailed Collector or Repeater Specifications
- Port and Protocol Requirements
- Status and Diagnostics
- Changing the Repeater Password
- Antenna Line Sweeps Procedure
- Anritsu Site Master Calibration
- Testing on a Network Device with a Remotely-Mounted 900 MHz Antenna
- Understanding Party Responsibilities
- Itron ChoiceConnect Antenna and Line Sweep Test Form
- Itron ChoiceConnect 900 MHz Antenna Specifications
- Typical Coaxial Cable Specification Summary Table
- Sample Sweeps Output
- Grounding Specifications
- Understanding Grounding and Bonding
- Understanding the Ohms Level
- Reducing the Ohms level
- Using a Megger
- Adjusting the Routing of the Grounding Conductor
- Supplier General Requirements and Equipment Competencies
- 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
- 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
- Understanding Grounding and Bonding
- Index
Grounding Specifications
104 TDC-0971-011 CCU 100 and Repeater 100 Installation Guide
Proprietary and Confidential
In this configuration, the MGB is typically used for Itron TCU / CCU equipment,
coax cable, and platform grounding.
4. Mount the MGB so that all equipment, coax, and platform ground lugs attach to the
top two rows of holes and the leads connecting to the BGR attach to the bottom two
rows of holes.
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.
To ground 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 104.