DF-2 Micro-Controller Detector/Flasher/Gate Driver

DF-2 Micro-Controller Detector/Flasher/Gate Driver

Details:

The Circuitron DF-2 is a high-performance, microprocessor-controlled grade crossing system designed to deliver fully realistic bi-directional train detection and crossing operation on model railways. Using Circuitron’s proven opto-electronic detection technology, the DF-2 accurately senses train movement in either direction and automatically manages all crossing outputs using intelligent onboard logic and timing control.

Completely independent of track power, the DF-2 is compatible with DC, AC and DCC (Command Control) systems and can be used in any scale. No modifications to locomotives or rolling stock are required, allowing seamless integration into existing fleets and layouts. The built-in microprocessor ensures that crossing signals behave realistically, activating and deactivating in response to train movement with precise directional control.

The DF-2 includes alternating flasher outputs capable of driving high-intensity LED or lamp installations, along with accessory outputs for bells, relays and additional signalling devices. A dedicated gate drive output is also provided, allowing direct control of up to two TORTOISE™ slow-motion switch machines configured for crossing gate operation. The gate motor speed is adjustable, enabling fine-tuning for realistic gate movement.

The DF-2 provides alternating flasher outputs capable of driving up to 250mA per side, making it suitable for both LED and incandescent lamp installations. Additional accessory outputs allow integration with bells, relays and other automation devices, while the dedicated gate control output supports realistic animated crossing gates using TORTOISE™ switch machines. Its flexible design makes it ideal for advanced model railway signalling systems requiring precise and realistic operation.

Features:

• Microprocessor-controlled bi-directional grade crossing detection system
• Fully automatic direction sensing with intelligent timing logic
• Compatible with DC, AC and DCC layouts with no rolling stock modifications required

Additional Information:

• Detection Method: Optical (Opto-Electronic)
• Direction Detection: Automatic bi-directional sensing
• Control System: Microprocessor-based logic and timing
• Power Requirement: 10V – 18V DC
• Track Power Compatibility: DC, AC and DCC systems
• Rolling Stock Modification Required: No
• Flasher Output Capacity: Up to 250mA per side
• Accessory Output: Up to 250mA (bells, relays, etc.)
• Gate Drive Output: Direct drive for up to 2 TORTOISE™ switch machines

Measurements:

• Length: 76.2 mm
• Width: 76.2 mm