Details: Basic Quad Stationary Decoder for Slow Motion Turnout Machines, add cost effective DCC control to your slow motion turnouts. DS44 Features: No frills stationary decoder. Simple installation and set up. Control 4 slow motion turnout machines from your DCC throttle. Quick set up for sequential addresses (like the DS54) Independent address set up also available (you can choose any stationary address for each turnout machine) Note: DS44 will not work with solenoid type turnout machines.