NMRA MSS SIG modularsignalsystemstandard@groups.io

This group will serve as a forum for providing general information and mutual support about the NMRA MSS  (Modular Signal System Standard) SIG. This is a standardized method for animating model railroad signals to react to trains moving along a signaled track. MSS simulates basic Absolute Block Signal (ABS) functionality in any model railroad scale and format, though it's especially well-suited for a modular model railroad.
For more information about the MSS standard see; 


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