The East Coast Circuits Crossing Signal Circuit is designed specifically for crossing signals without gates. It works with any LED crossing signals designed with common-anode circuitry. This circuit is part of the line of East Coast Circuits HO Scale electronics and scenery products.
 

• Input 9-12V AC/DC
• Dimensions 2 x 2"
• Draws approximately 36mA
• Handles up to 16 LEDs
• Built-In LED Indicators
• Dual track bi-directional operation
• Automatic light sensor adjustment
• Secondary trigger output
• Eight wired light sensors Included
• Built-in resistors for 3V operation
• Built-in pins for future add-ons
• For common anode LED based crossing signals (common positive)
• Sensors will not operate in the dark