Itron Inc. CCU100A Manual Do Utilizador
Grounding Specifications
114
TDC-0971-011 CCU 100 and Repeater 100 Installation Guide
Proprietary and Confidential
2. Connect the pole and equipment BGRs using two buried runs of No. 2 AWG BTCW.
These connections should follow the same path as the coax bridge if possible.
Note Wooden and concrete poles do not connect directly to the BGR. The BGR will
be used to ground the coax and antennas ground bar at the base of the tower as
discussed later in this document.
be used to ground the coax and antennas ground bar at the base of the tower as
discussed later in this document.
Equipment Shelter Grounding
Ground Itron equipment that is installed in shelters the same way you ground a non-
shelter site in terms of equipment ground leads, coax ground kits prior to the Itron TCU /
CCU equipment jumpers, and MGB placement.
shelter site in terms of equipment ground leads, coax ground kits prior to the Itron TCU /
CCU equipment jumpers, and MGB placement.
To ground equipment sored in shelters
1. Connect the internal MGB to the equipment BGR using two No. 2 AWG BTCW
ground leads.
The BTCW can penetrate the wall or foundation of the shelter in two separate holes.
Refer to the shelter manufacturer specifications for placement and quantity.
Refer to the shelter manufacturer specifications for placement and quantity.
Note Whenever ground leads penetrate concrete, they must be protected by PVC
conduit.
conduit.
2. At a location just outside where the coax penetrates the shelter wall, install coax
ground kits and connect to a CGB.
3. Bond the CGB directly to the BGR.
Repeaters on Communication Tower Sites
Repeaters at collocation sites must have antenna mounts, coaxial cable, and coax bridges
(if required) grounded in the same manner as a full network device.
(if required) grounded in the same manner as a full network device.
To ground repeaters on communication tower sites
1. Locate the MGB at the repeater equipment location and bond to the existing ground
system at the site with two No. 2 AWG BTCW leads.
2. If no existing BGR exists or it is not practical to connect to the existing BGR, drive a
single ground rod adjacent to the repeater equipment to serve as the ground electrode
system.
system.
3. Bond the ground leads from the repeater equipment and the coax ground kits,
immediately adjacent to the repeater, to the MGB.
CCUs and Repeaters on Utility Poles
CCUs and Repeaters mounted on utility poles will be grounded using a single ground rod
located immediately adjacent, if possible, to the utility pole.
located immediately adjacent, if possible, to the utility pole.