Three-Aspect Searchlight Signal Wiring

Wire a searchlight signal with proper resistors and control logic.

Wiring Steps

1
Identify signal wires: common, red anode, green anode (for bi-color LED)
2
Calculate resistor values for your LED and supply voltage
3
Connect common to ground through resistor
4
Connect red and green anodes to your control circuit
5
Red ON = Stop, Green ON = Clear, Both ON = Yellow/Approach
6
Integrate with block detection for automatic operation

Tips for Success

Use signal driver boards for easy integration with detection
PWM can create realistic aspect transitions
Approach lighting (dark until train near) adds realism
JMRI Signal Mast Logic can drive prototype-accurate aspects

Safety Reminder

Always disconnect power before working on wiring. Double-check all connections before applying power. When in doubt, use a multimeter to verify your work.

Current-Sensing Occupancy Detection DCC Power District Setup with Boosters

Tech Hub/Wiring Diagrams/Three-Aspect Searchlight Signal Wiring

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Three-Aspect Searchlight Signal Wiring

Wire a searchlight signal with proper resistors and control logic.

Wiring Steps

1
Identify signal wires: common, red anode, green anode (for bi-color LED)
2
Calculate resistor values for your LED and supply voltage
3
Connect common to ground through resistor
4
Connect red and green anodes to your control circuit
5
Red ON = Stop, Green ON = Clear, Both ON = Yellow/Approach
6
Integrate with block detection for automatic operation

Tips for Success

Use signal driver boards for easy integration with detection
PWM can create realistic aspect transitions
Approach lighting (dark until train near) adds realism
JMRI Signal Mast Logic can drive prototype-accurate aspects

Safety Reminder

Always disconnect power before working on wiring. Double-check all connections before applying power. When in doubt, use a multimeter to verify your work.

Current-Sensing Occupancy Detection DCC Power District Setup with Boosters