====== RSIN Command ====== RSIN,, sets the response spectrum input file number for ACS SASSI [[SASSI:EQUAKE]] module to . **Note:** This instruction is provided for input files. To set the analysis options for the ACS SASSI EQAUKE module from the ACS SASSI [[SASSI:PREP]] or [[SASSI:acs-sassi_user_interface| SASSI User Interface]], use the Options / Analysis menu Option.