CIRCUITRON designed the DT-2 to be the most advanced DC track power grade crossing detection circuit available at any cost. It is completely independent of train length and it will duplicate prototype grade crossing action for a single locomotive or a 100 car train. The DT-2 is completely bidirectional and includes the 4 Opto-Sensors required for a normal installation. The integrated circuit memory on the DT-2 does not require that a sensor remain covered in order to provide an output; the sophisticated circuitry will always maintain the output for any length train just until the last car clears the crossing.
If a train should stop short of a crossing and then back away, the DT-2 will detect that, also, and turn the output off. The DT-2 is fully assembled on a 3" x 3" printed circuit board and will operate equally well from any 10-18 volt AC or DC power source. The output of the DT-2 provides a connection to the common or ground (-) side of the circuit and is capable of controlling DC powered loads up to 250 ma.
Although the DT-2 is one of our more costly circuits, it is still an outstanding value for serious model railroaders who demand nothing less than the ultimate in realism for their layouts.
NOTE: The DT-1, DT-2, and DT-3 Detection Systems do not have provisions for flashing lamps. They must be used with an Alternating Flasher such as the FL-2 or FL-3. The DF-1, DF-2 and DF-3 Detector/Flasher circuits include the alternating flasher on the same circuit board.
