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
Repeaters on Rooftops
Repeaters located at rooftop sites must have antenna mounts, coax, and coax cable tray (if
required) grounded in the same manner as a full network device.
Grounding Repeaters on Rooftops
1. Locate the MGB at the repeater equipment location.
2. Bond , in order of preference, to one of the following:
–
existing building lightning or ground protection system
–
building steel
–
one 4/0 AWG down conductor to ground rod or cold water main.
Multiple Story Site Ground System
If the site is in a high rise building or in a metropolitan area with very limited access to any earth,
then a water pipe electrode with a single chemical ground rod for augmentation is specified. This
should yield as low a noise ground system as possible even if it is not exactly a five ohm ground.
Down Conductors Installation - Building / Shelter Penetrations
Use Schedule 40 or 80 polyvinyl chloride (PVC) conduit to carry the required down conductors,
penetrating the outer wall and foundation of each building at ground level. Using steel conduit is
unacceptable since it significantly increases the conductor's inductance.
Down Conductors Installation - Limits of Bend Radius
Connect the inside halo ground and the BGR with conductors that follow a path as straight and
vertical as possible with no bend having a radius of less than eight inches. Deviations can cause
increased inductive reactance leading to excessively high voltage and/or flash over during a
lightning strike.
Down Conductors Installation Connection Methods
Use an approved exothermic welding system to connect all down conductors to the BGR.
AC Power Grounding Connections
In accordance with the National Electric Code, Article 250 or appropriate local codes, bond the
AC power neutral to the Master Ground Bar (MGB-1) Producer (P) section. Refer to Section
3.2.1 of NP-312-202, Interior Grounding System Design, for more information.
Utility Provided AC Power Transformer Neutral Grounding
The neutral of the distribution transformer is grounded by the power company. It is important that
the transformer ground not be connected to any part of the building or tower ground ring. It
23 June 2020 TDC-0971-012 Itron, Inc. Page 128 of 134
CCU 100 and Repeater 100 Installation Guide F Grounding Specifications