To Set Up an Input FSFC (HD Only) Note: If you do not have the CUFR-ADD-FSFC option activated, an FSFC must be assigned to the input first. Click Navigation Menu > Configuration > Inputs > External. Click the Configure button for the input you want to assign an FSFC to. Click a Type button to turn on the FSFC. SDI — no FSFC is applied to the input. SDI-FS — an FSFC is applied to the input.