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
Sample Sweeps Output
TDC-0971-011 CCU 100 and Repeater 100 Installation Guide 105
Proprietary and Confidential
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 105
• At the bottom of a tower on page 105
• At the end of an ice bridge on page 106
• With GPS and WAN antennas on page 106
• Grounding a coax ground kits on page 106.
To install 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.
To install 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
Collector Sites and Repeaters on page 97.
Attention 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.