ION 16AMP 1RU AUTO TRANSFER SWITCH. OPTL SNMP CAPABILITY F-ATSSNMP.Automatic Transfer Switch Primary power 1RU foot print IONs Intelligent 16Amp Automatic Transfer Switch ATS has been designed with two independent power inputs to supply power to the load from a primary power source in a compact 1RU foot print. Should the primary power source fail the secondary will automatically back up the connected equipment without any interruption. The transfer time from one line to another is seamless to the connected equipment.