Tripp Lite Metered ATS / Auto Transfer Switch PDU systems enable redundant power configurations for network devices with a single input cord connection. Set of two ATS inputs support connection to separate PRIMARY and SECONDARY power sources. The ATS normally maintains continuous output to connected equipment derived from the primary input. If the primary input fails or becomes unstable, the ATS will switch over to the secondary power source until the primary input is restored and stable. Super-fast switchover between primary and secondary power sources occurs within milliseconds. ATS functionality is supported by any two compatible AC power sources to support a variety of advanced redundant power networking applications. Enables fault-tolerant hot-swappable UPS protection when used with a single UPS and fully redundant UPS protection when each cord is connected to a separate UPS system. In a two-UPS environment, the primary input cable must be supported by a full time sine wave UPS with zero transfer time, similar to Tripp Lite SmartOnline series. ATS configurations utilizing separate mains circuits, backup generators and even out-of-phase power sources are fully supported. On-board ATS processor constantly evaluates power quality on both input sources to prevent transfer to the secondary source when unavailable or of lower quality than the primary source. Front panel current meter offers selectable 4 segment voltage, amperage and kilowatt loading information.