NTrak - Module Standards

Module Standards

NTrak modules are marked by their standard three running tracks (two are "mainline" tracks and the third is the "branchline" track) that are required on all modules. These three tracks are set on 1.5-inch (38 mm) centers near the viewing side of the modules. The tracks are labeled from the viewing aisle by color, starting with Red for the outermost (closest to the viewing aisle) track, Yellow for the center track and Blue for the innermost track. The three tracks are electrically isolated from each other and from any other (optional) tracks on the module.

Most modules are built with a surface area of 2 by 4 feet (0.61 by 1.22 m). The official standard allows up to an extra 6 inches (152.4 mm) of surface area on either the aisle or operator's side or both (which can lead to a module that is 3 feet (0.91 m) wide). Module lengths are typically extended in 2-foot (0.61 m) increments, but can be almost any length, limited by the modeler's abilities to build and transport the modules. Modules built to non-standard lengths must be built with consideration of the standard lengths; where appropriate, the modeler must also build a short bridge module so that the module set uses up a section of layout that is evenly divisible by 4-foot (1.22 m)-long modules.

Modules are connected electrically with two-conductor Cinch Jones plugs. Although these connectors are becoming harder and harder to obtain for many modelers, and despite continuing discussions on a new standard connector, the Cinch Jones is still used as the standard.

Recent proposals have recommended that Anderson Powerpoles should be used for electrical connections. In addition, new standards have been written to comply with the new National Fire Code. These include the prohibition of module-mounted power strips. These new standards are available for review at the NTRAK website.