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The Alternate Spur BitSwitch is designed as a stand alone BitSwitch or can be used with other BitSwitch products.

A train entering either spur (assume Spur “A”) it be stopped and held until another train enters the adjoining spur (assume “B”).

When the train entering the second spur “B” trips the trigger in that spur the first train “A” will be released and the second train “B” will be held on its spur until another train enters the first spur “A”.  This pattern will continue with one train always parked in either spur “A” or spur ”B”

Trains may travel in either direction if the engine decoders don’t require reverse DC polarity for braking or if “Set Speed Zero” method is used for braking.

An accessory decoder that will automatically throw the turnouts would need to be installed as shown below.  The trains can run in opposite directions or in the same direction alternating so that one train is in the station at all times.