Train detection , DETREN

• Function: in charge of train detection and sending the signal to the cross-train logic, LODEC.
• Indications:
  Red LED on, indicates equipment detecting steel.
  Green LED on, indicates equipment non-detecting steel.
• Outputs: NPN open collector
• Power supply: 12 Vdc nominal, minimum 10 Vdc, maximum 14.4 Vdc

Cross-train logic , LODEC

• Function: commanding the railroad crossing flasher using the signals of the train detectors, model DETREN.
• Inputs: 3 DETREN inputs
• Outputs: 1 relay contacts NO, C, NC (rated 5 A @ 12 Vdc)