Abstract: A system for controlling movement of a passenger train having a locomotive and a plurality of doors is provided. The system includes a door status sensor to determine open and closed status of each door of the locomotive. The system further includes a first control module coupled to the door status sensor and a relay coil through a first diode. The relay coil is energized on receipt of input from the door status sensor, when all doors of the locomotive are closed, and the energized relay coil allows controlling movement of the locomotive. The system further includes a door override switch. In an actuated condition, the door override switch allows power to flow from a power source to the relay coil, thereby energizing the relay coil. The energized relay coil allows controlling movement of the locomotive.

Abstract: Similar electronic module packages are provided having guide pins and front actuated retaining rods for mounting the package on a mounting panel having threaded mounting holes spaced in a regular pattern to accept the guide pins and retaining rods of several module packages. The guide pins and retaining rods are mounted on diagonally opposite corners of the modules. Front mounting of the modules and front location of electrical connectors avoids a requirement for rear access to the mounting panel. Various arrangements of modules on the mounting panel are allowed by suitable arrangement of the pattern of mounting holes in the panel. The modules include a housing with a face plate and a mounting plate. The housings include either a support panel or a cover. The face plate and the mounting plate extend above and below the support panel or the cover.