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
Chapter 2 Planning a CCU/Repeater Installation
16 TDC-0971-011 CCU 100 and Repeater 100 Installation Guide
Proprietary and Confidential
Local GPS and WAN Antennas
The primary requirement for any coaxial cable used with the local GPS or WAN antenna
is to have less than 5 dB of attenuation at 1.5 to 1.8 GHz for the entire length of cable,
including connector losses.
You may use any type of 50 ohm coaxial cable as long as the total loss, including
connectors, is less than 5 dB at 1.5 to 1.8 GHz.
Itron recommends using regular 1/2" coax or Times Microwave LMR-400.
If the antennas are mounted in an exposed outdoor environment, you must provide
lightning protection and proper grounding. For more information on lightning protection
and grounding, see Lightning Arrestor on page 12, Grounding the Remote/External
Antenna Systems on page 10, and the Motorola R-56 guidelines.
Antenna Sweep Test
After remote antenna installation, perform an antenna system sweep test and verify the
VSWR (voltage standing wave ratio) does not exceed 1.5:1. For more information, see
Performing an Antenna Sweep Test on page 74 and the Antenna Line Sweeps Procedure
on page 83.
Caution All coaxial cable used to connect an antenna to the collector or repeater
must be properly grounded at the top and bottom of the coaxial line. Additionally, any
cable lengths of 200 feet or greater must be grounded each 100 feet. For more
information, see Lightning Arrestor on page 12.
Antenna Connectors
Connectors for the 900 MHz and WAN antenna cables must be male type N connectors,
and must be sized according to the type of coaxial cable used. The GPS cable requires
TNC male and SMA male connectors. These connectors are available from a variety of
manufacturers.
Important All coaxial cable connections must be properly weather-proofed per
industry standards unless otherwise specified.