CP1W-CIF01 , CP1W-CIF11, CP1W-CIF12, CP1W-CIF41

CP1W-CIF11 = RS232-C Option Board
CP1W-CIF11 = RS422A/RS-485 Option Board
CP1W-CIF12 = RS422A/RS-485 Isolated Type Optioan Board
CP1W-CIF41 = Ethernet Option Board