ASE Systems is a smart grid protocol technology leader and a leading manufacturer of Remote Terminal Unit (RTU)/Intelligent Electronic Device (IED) protocol test equipment for supervisory control and data acquisition (SCADA) industry. Other products include communication protocol translators, front-end processors, substation alarm annunciators, terminal servers, modems, and source code libraries. Based in Campbell, California, ASE has developed market-leading substation protocol test sets for more than 100 substation and industrial protocols.