Block Signalling SAS1 DC Shuttle The BLOCKsignalling Simple Automatic Shuttle is designed to automate a DC model train running backwards and forwards along a single length of track. At each end of the track, a diode is fixed across an insulated rail gap to stop the train until the track current is reversed and the train can automatically start travelling in the reverse direction. Automatically operates a train backwards and forwards along a single line Waiting time at either end is adjustable or can be set to random. Trains can be set to wait at either or both ends until a button pressed (Dispatch Control) with an led to indicate a train is waiting. Optional Route Indication leds can be connected to show train waiting at either end, or in transit up or down the line. Optional 2-aspect signals can be connected, and will switch to green three seconds before train departs, and back to red two seconds later. Requires a 12V DC Power Supply
