Store Home New Arrival Ending Soon Add to Favourites View Feedback Contact us Store Categories USA store HO Scale / OO scale O Scale N Scale Light Emitting Diode / LEDs Grain of Wheat Bulbs Wholesale / Buy In Bulks Switches / Connectors G Scale Z Scale Electronic Component Resistors Nintendo DS Nintendo GBA / SP UK store HO gauge / OO gauge O gauge Light Emitting Diode / LEDs N gauge Switches / Connectors Grain of Wheat Bulbs Wholesale / Buy In Bulks G gauge Z gauge Other gauge Australia Store HO gauge / OO gauge N Gauge O gauge G Gauge Why Buy From us price for 1 x Master Boardsignal controller / train detector / servo, sound effect board, flasher board, other device driver Items Descriptionwhat can this Master board do? control the block signal by the train automatically: it may control 2 aspects signal, 3 aspects signal or 4 aspects signal.use it with a slave board ( sell separately ), they may stop and restart the train before the turnouts.use it with a slave board ( sell separately ), they may stop and restart trains at the station; or use them as shuttle train controller.use it with the crossing signal sound board ( sell separately ) and the flasher board (sell separately ), crossing gate servo ( sell separately ), trigger them automatically by trains.turn on lights, point motors, tunnel lighting or other electrical device automatically by trains.how they work: the master board detects trains by bouncing invisible Infra-Red (IR) light off the underside of the rolling stock, or install it on track side, detecting the light reflected back. Once triggered by the train, the module runs built-programs. ( black surface will absorb most IR light, you may stick white tape under the train or use track side sensors ) one sensor is enough to detect if the long train clear the sensor or not. 1, to simulate the operation of 2-, 3- or 4-aspect signals. signals normally show green. When the train passes the detector, the signal switches to red and keep red. Once the train has fully cleared the detector, the module switches the signal back to green (via delay red, yellow and double yellow if appropriate). 2, stop and restart train before the turnouts. When the train passes the detector, the signal switches to red and keep red, the slave board will cut off power to the near tracks so that no train can get through the near tracks, Once the train has fully cleared the detector, the module switches the signal back to green (via delay red, yellow and double yellow if appropriate), and slave board power the near tracks again so that the near train can restart. 3, stop the train and restart it at station or let the train run back. When the train trigger the detector, the slave board will cut off the power to the tracks and stop the train, after the set time, it will power the tracks again and the train will restart. Or run to another direction under shuttle mode. 4, trigger the crossing signals’ sound effect board, flasher board, gate servo or other devices When the train passes the detector, the master board provide power to the sound board/flasher board, the servo rotate to pull off the arms for corssing gate after the warning sound, Once the train has fully cleared the detector, it cut off the power to them, the servo rotate reversing so that the arm return up, work for both directions.Package included:1 master board 1 pre-wired IR sensor1 power connecting wireno paper instruction, please come back to this listing to view the on-line instruction from the bottom of this page you may still need the following accessories ( click the photos to buy ) : Shipping Payment Return Policy About us Contact us goods will be shipped by Airmail from China after cleared payment, normally we may dispatch them within 24 hours, but sometimes, we need time to hand make them, in such case, we will dispatch them within 3 to 5 working days, ship to worldwide. Approximate Delivery Time Delivery Time Countries 8 - 12 working Days10 - 15 working Days 15 - 25 working Days United States UK, australia, Canada, europe other countrys Full Instruction: We accept payments by Paypal only. Payment should be made within 7 days. free returns within 30 days: you may return the items(s) if you receive them defectived within 30 days at our shipping cost, we will send you replacements or money back. But please kindly inform us first before sending them back. we've been specialized in Model Train Accessories since 2004, wholesale welcome. We're glad to answer any questions you have. Please send us message through eBay and we will respond within 24 hours (weekend excluded). Copyright All Rights Reserved.