Model #SL-100 Double Pot Searchlight controller. Designed for hobbyists and collectors to re-animate DUAL-HEAD 12vdc railroad searchlights made by GRS, GRS-A US&S, H-2 etc. signals or similar that utilize bi-directional 12vdc motors / arm-coils to change the lens color in front of a 12vdc lamp.
(Note: This controller can also be used as a 6-output 12vdc controller using Negative as a "common")
This controller is powered by an external 12vdc power source (not included)and and has relay-switched outputs for two arm coils, and two bulbs:
#1 Coil 1 (outputs 1 and 2 in 6-output config.)
#2 Coil 2 (outputs 3 and 4 in 6-output config.)
#3 Lamp 1 (output 5 in 6-output config)
#4 Lamp 2 (output 6 in 6-output config.)
The screw terminal outputs are rated for 6 Amps (resistive load).
Board Dimensions: 4.6" X 3.0" X 1"
Input Voltage: 10vdc - 12vdc
Output Voltage: (same as input voltage)
Max bulb wattage: 40 Watts at 12vdc
Each step can have it's own unique duration setting (except for steps marked "fixed")
Standard Double-Pot Sequence steps :
off
yellow/yellow
red/red
yellow/red
flashing yellow/red
red/red (brief, fixed)
green/red
off
green/red
red/red
yellow/red
flash yellow/red
red/red (brief fixed)
greed/red
off
red/green
red/red
off
red/yel
red/red
off
flashing red/red
red/red
off
(repeat)
Wiring Instructions:
http://www.joezgarage.com/dual output GRS instructions.pdf