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Installing a Pre-Cast Concrete Pad
A concrete pad provides a permanent foundation to anchor the cabinet to the ground while
protecting the cabinet from water damage and other outdoor surface conditions.
Install a pre-cast concrete pad for the cabinet at the installation site. Installation requires
excavating the site, trenching cable conduit, creating a gravel foundation base, and installing
the pre-cast pad using a crane or derrick.
Pre-cast pads typically ship configured with conduit entry cutouts and mounting fixtures
(anchor studs or countersunk threaded inserts) for anchoring the cabinet to the pad. Specific
features and dimensions vary by manufacturer. Contact your sales representative for a list of
Calix-certified suppliers.
Pre-Cast Pad Requirements
When preparing for and installing a pre-cast concrete pad, observe the following guidelines.
Refer to the pad drawings for guidance.
Guidelines
Calix strongly recommends following these guidelines to ensure proper support for the
cabinet. Adjust for local conditions or practices as required.
Use a pad with a minimum height of 6 inches.
Orient the pad with a maximum of 2 inches above-grade exposure.
Use 4-inch conduit (maximum) for outside plant cables. See drawing below for entry
locations.
Use 2-inch conduit (maximum) for AC cable. See drawing below for entry location.
Include pull cords in all cable conduits.
Refer to the pad manufacturer's instructions for additional guidelines.
