To be eligible for a UPS/BBU system, the intersection must be equipped with LED traffic signal indications.

Installation of UPS/BBU requires determining where to install the unit in the intersection. The UPS/BBU system will normally be provided with its own cabinet that will house the inverter, batteries, and auxiliary equipment. Cabinets can be provided for installation on the side of the signal cabinet or a separate base mount. In some cases, the inverter/charger and auxiliary equipment can be installed in the signal cabinet with the batteries located in a separate cabinet or ground box. However, this is not recommended, as signal cabinets do not have room for all the equipment and it can require wiring modification to the signal cabinet.

In determining whether to install the cabinet to the side of the signal cabinet or base mounted, the traffic signal cabinet base should be evaluated to ensure it is structurally adequate and there is adequate area for access by technicians. Additionally, there should be no obstruction to sidewalks and pedestrian walkways. Base mounted cabinets located in low areas that may be subject to storm water may need a cabinet extension to elevate the cabinet and prevent possible exposure to high water.