Signaling & Automation Equipment
Grade Crossing
FLASHER (item #367)
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The FLASHER circuit is completely solid state and operates with either AC or DC input power. Each of the two outputs can handle up to 3/4 ampere of current so it is possible for the FLASHER to illuminate several crossing lights at the same time. The FLASHER has an adjustment potentiometer allowing the flash rate to be varied to suit the users preference. A simple on-off switch in the "common" connection can be used to manually activate the FLASHER. For automatic operation with 3 rail track, insulate a section of one outside rail allowing the wheels and track to function as the switch in the "common" (instructions illustrating this installation included with Flasher). It is also possible to use TRAK-DT, TRAK-DTT, TRAK-DTL or the OPTO-DT as a switch to turn on the FLASHER. Since these devices must be DC powered the FLASHER can also be DC powered. When LED's are used in the crossbuck, the "+" (anode) of the LED connects to the FLASHER "COMMON" . See page 54 for proper usage with LED's Useful LED Information (PDF file)
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Wiring the Flasher for automatic operatoin with 3rail track requires using track that has one outside rail electrically insulated from the other outside rail. Most modern track with either wood or plastic ties has the outside running rails electrically insulated. Although there is only one connection shown for the "Variable AC", as well as the "Track common", to the track, it is best to have more than one power feed for all layouts. It is also a good practice to wire the track common to the opposite outside rail for better operation, as shown.
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By adding a TrakDT, you can make the flasher turn on and off at desired locations. For a more precise operation, use our OptoDT instead of the TrakDT. If using for AC 3rail track, the insulated section can be either an outside rail or center rail. The Flasher will operate whenever current flows through the sensor on the TrakDT.
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