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
Using a Clamp-On Ground Resistance Tester
1. Clamp the tester around the ground conductor and read the resistance-to-ground directly
from a digital display.
This type of measurement permits the quality of the grounding connections and bonding to
be verified.
2. Use certified Ground Resistance Testers for all clamp-on ground resistance measurements.
Principle of Operation
In a typical grounded system, the neutral is bonded to ground at the service panel. There are
numerous neutral-to-ground bonds prior to this point, all in parallel. These bonds create an
effective earth resistance from the utility of virtually zero. A clamp-on ground resistance tester
uses this fact along with the connection between the utility service and the grounding system
under test. The clamp-on tester injects a known voltage into the system and measures the
current felt on the return path. Realizing the near "zero" resistance on the service side, the meter
reading indicates the resistance of the grounding system under test.
The following illustration shows a Principle of Operation.
23 June 2020 TDC-0971-012 Itron, Inc. Page 130 of 134
CCU 100 and Repeater 100 Installation Guide F Grounding Specifications