Class X-D Notional Amount With respect to the Class X-D Certificates as of any date of determination, the sum of the Component Notional Amounts of the Class X-D Components.
Class X-A Notional Amount With respect to the Class X-A Certificates as of any date of determination, the sum of the Component Notional Amounts of the Class X-A Components.
Class X Notional Amount As of any date of determination, the sum of the then Component Notional Amounts of all the Components.
Class X-B Notional Amount With respect to the Class X-B Certificates as of any date of determination, the sum of the Component Notional Amounts of the Class X-B Components.
Class A-X Notional Amount With respect to any Distribution Date, an amount equal to the aggregate Scheduled Principal Balance of the Non-Discount Mortgage Loans.