Specifications include, but are not limited to: A battery backup unit capable of operating a traffic signal during power fluctuation and prolonged power outages. Each unit shall include an outdoor aluminum enclosure with shelves, uninterruptible power supply (UPS) with ethernet interface, Universal Automatic Transfer Switch (UATS), four batteries with cable kit, AlphaGuard Battery Charge Management System, external LED, cooling fan, software, installation brackets and all incidentals mentioned in this special provision or necessary for proper operation ; outdoor enclosure shall be an Alpha Side Mount 6 or equivalent with the following specifications: NEMA 3R Rating 0.125” aluminum Dimensions (in): 48.1H x 16.5W x 16.5D 10 year Warranty “On Battery” indicator light Door activated interior light Stainless steel handle Applicable mounting brackets ; uninterruptible power supply (UPS)shall be an Alpha FXM 1100 or equivalent with the following specifications: Input Voltage Range (120V) Output o + or - 10% over full input voltage range o Pure sign wave o Transfer Time - <5ms o Audible Noise at 1m – 40dBA Environment o Operating Temp: -40 to +74°C o Operating Humidity: Up to 95% Connections o AC Input and Output: Terminal Block (Max. 10AWG) o Factory Installed RJ-45 Ethernet Interface .