More than Just a Standard NMRA AR Div 1
proposed Standard Version 0.5 Author: Bob Tisdall Graphics: Glen McCarley
Disclaimer - This is not an official NMRA standard. It is no more than a suggestion for an approach that will work for the members of AR Div1. The author has borrowed freely from the Free-Mo.org and AMRA standards. The changes suggested are to adopt the metric system and make minor adjustments to the measurements to fit with plywood that comes in 1200mm x 2400mm sheets. The work of AR Div7 has been influential, and the changes selected mean Div1 and Div7 modules should be compatible regarding track positions, cable paths and the positioning of connecting bolts.
However, Div1 has specified options for double and single tracks. It also specifies a Track Bus and a Layout Bus but no DCC system.
Modern practice has moved firmly to Wi-Fi controllers, removing the requirement for docking stations to service proprietary CABS.
The Mini-Mo and branch line standards will be distributed at a later date.
Click HERE below for the full NMRA Division 1 Free-Mo Standards
