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
Instead, install a CGB at the roof edge where the coax transitions from horizontal to vertical.
Install coax ground kits as close to the edge as possible where the coax is still horizontal and
bond the ground leads to the CGB. Connect the CGB to the MGB in the usual manner.
3. Connect each antenna CGB to the MGB at the equipment location.
4. If the MGB is located on the rooftop, use one run of No. 2 AWG BTCW to bond the CGB to
the MGB. Run this along the coax cable tray on the rooftop and secure to the cable tray to
prevent wind damage.
Note: Due to the fact that the cable tray runs along the roof and the MGB is typically
installed at a slightly higher elevation, it may be necessary for ground leads to run slightly
upward to bond to the MGB. If this cannot be avoided, ensure that all ground wire bends
are smooth and have as large a radius as possible.
5. If the equipment MGB is located inside the building, a separate external ground bar is located
where the coax enters the building. All No. 2 AWG BTCW sector grounds bond to this
ground bar. In addition, install a coax ground kit on each coax cable and bond it to the ground
bar. This external ground bar connects to the interior MGB using a single 4/0 AWG stranded,
insulated wire installed along the coax path.
Cable Tray Grounding
All metallic cable tray on a rooftop, mounted on the side of a building, or running inside a building,
must be properly grounded.
Grounding a Cable Tray
1. A metallic cable tray must be grounded to the sector CGB at one end and grounded to the
MGB at the other end using No. 2 AWG BTCW.
2. Connect the ground wire to the cable tray with two-hole multiple crimp type (with UL tool and
circumferential die compression) connections attached with bolts or self- tapping screws.
3. Each section of the cable tray must be electrically connected by either a metal plate or
ground jumpers made of No. 2 AWG BTCW and two-hole lugs.
4. If the equipment MGB is located inside the building, the cable tray ground connects to the
external ground bar where the coax enters the building.
Water Tower Grounding
Itron does not construct water towers. Therefore, network devices utilizing water towers as
antenna structures do not require the installation of a structure ground ring around the leg of a
water tower. The equipment BGR serves as the primary ground point for all Itron equipment,
antennas, coax, and cable tray.
Install coax ground kits as previously described.
23 June 2020 TDC-0971-012 Itron, Inc. Page 125 of 134
CCU 100 and Repeater 100 Installation Guide F Grounding Specifications