Universal Colorlight Simulator

Universal Incadescent Colorlight Simulator 1600x1600.jpg
Universal Incadescent Colorlight Simulator 1600x1600.jpg

Universal Colorlight Simulator


The Universal Colorlight Simulator works with either incandescent or LED signals, aside from the Hitachi Rail STS LED Colorlight Signals. The Universal Colorlight Simulator was designed for use in test environments—both the lab and bungalow—to simulate the current draw of incandescent colorlight signals via 5 ohm, 50 watt resistors. Most LED colorlight signals in the industry are designed to operate like an incandescent colorlight—one exception being the Hitachi Rail STS LED Colorlight Signal. Indicators LED1–LED6 are preceded in the circuit by bridge rectifiers. This allows the Universal Colorlight Simulator to be used with either positive-referenced or negative-referenced lamp drivers.

If you need to simulate Hitachi Rail STS LED Colorlight Signals driven by either a 1) MicroLok II system with an LED 12 board or 2) a MicroLok Object Controller (MOC), please purchase the QuEST Rail MicroLok LED Colorlight Simulator.

  • QuEST Part Number (QPN): 800-100005-0000

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The Universal Colorlight Simulator is designed to be mounted on AAR terminal strips.

WARNING: The heatsink plate and resistors will be hot when signals are lit.

Instructions for Use

The Lamp indicator will be lit only when lamp voltage is applied to the corresponding terminal and the associated switch is in the "UP" position. To simulate a healthy Lamp signal, the switch must be in the "UP" position. Switches in the "DOWN" position break the circuit to the load and check pulse circuitry, which simulates a light-out condition.

Wiring Instructions

Lamp Driver Connection Colorlight Simulator Connection
Lamp Outputs from Lamp Driver Terminals 1–6
Lamp Common COM Terminals

NOTE: The Incandescent Colorlight Simulator provides two different COM connections. COM1 and COM2 are normally isolated from one another but can be combined into COM2 by removing the solder short JMP1 and adding solder short JMP2.

  • Terminals 1, 2, & 3 are referenced to COM1
  • Terminals 4, 5, & 6 are referenced to COM2