The Impera™ SR-2 is a two-relay unit designed for simple applications when only minimal switching is required, such as raising and lowering a screen. Control is via dedicated inputs, one for each relay, accepting control signals from an Impera controller. Separate high-voltage relay connections are provided, as well as a dedicated “screen mode” connection. Test buttons are provided for manual activation of relays, with LEDs for indication of relay state (open or pulled).