The Rack Automatic Transfer Switch (ATS) from APC by Schneider Electric provides reliable, redundant power supply for single cable devices. It has a dual power input. If the primary power source is no longer available, the Rack ATS seamlessly switches to the secondary power source without interrupting power at critical loads. The network units have built-in network connectivity, enabling remote management via the Internet, SNMP or Telnet interfaces. Two power cables (not included) can be connected to the two C14 power inputs to connect the ATS to two different power sources (A, B). The switch draws power from a primary power source and switches to a secondary power source if necessary. The sockets connect the ATS to devices in the rack or enclosure, providing redundant power to the connected devices. Each switch has twelve C13 sockets.