switched function (part of Märklin's original Digital offering for DC operation). 6090 Conversion kit for drum commutator motor (DCM) AC locomotives, including motor upgrade components. Motor regulation with adjustable parameters, 14 speed steps, 1 switched function. 60901 Conversion kit for drum commutator motor (DCM) AC locomotives, including motor upgrade components. Motor regulation with adjustable parameters, 28 speed steps, 5 switched functions. 60902 Decoder upgrade for 6090 digital models. Motor regulation with adjustable parameters, 28 speed steps, 5 switched functions. 60903 Conversion kit for older small flat commutator motor (SFCM) AC locomotives, including motor upgrade components. Motor regulation with adjustable parameters, 28 speed steps, 5 switched functions. 60904 Conversion kit for older large flat commutator motor (LFCM) AC locomotives, including motor upgrade components. Motor regulation with adjustable parameters, 28 speed steps, 5 switched functions. 60905 Decoder for Faulhaber motor locomotives. Motor regulation with adjustable parameters, 28 speed steps, 5 switched functions. 60960 Function decoder for locomotives, carriages, or accessories. No motor control, 5 switched functions. 60961 Function decoder for locomotives, with direction change of main function. No motor control, 5 switched functions. 60760 Conversion kit for drum commutator motor (DCM) AC locomotives, including motor upgrade components. Motor regulation with adjustable parameters, 28 speed steps, 1 switched function (later low cost upgrade offered after the introduction of mfx. These decoders are programmable by the controller and so do not require tools to change parameters). DELTA conversion kits 6603 Original DELTA decoder, address change by solder pad, later by DIP switch, with 4 addresses. 14 speed steps, no switched function. 66031 DELTA decoder, address change by DIP switch with 4 addresses. 28 speed steps, 1 switched function. 66032 DELTA decoder, address change by DIP switch with 80 addresses and automatic mode detection (digital / analog). 28 speed steps, 1 switched function. mfx conversion kits All mfx decoders provide motor regulation with 128 speed steps and multiple adjustable parameters, plus 16 switched functions. All are programmable by the Central Station, tools are not required to change parameters. 60921 Conversion kit for drum commutator motor (DCM) AC locomotives, including motor upgrade components. 60922 Decoder for drum commutator motor (DCM) AC locomotives, specifically to upgrade existing digital models. 60923 Conversion kit for older small flat commutator motor (SFCM) AC locomotives, including motor upgrade components. 60924 Conversion for kit older large flat commutator motor (LFCM) AC locomotives, including motor upgrade components. 60931 Decoder upgrade for existing digital