each suited to different types of vehicles and trailers. One of the most common types of trailer connectors is the 7-pin connector. This is widely used in North America and Europe, particularly for trailers with multiple lighting and braking functions. The seven pins provide power for essential ...
The preferred embodiment of the present invention as shown in FIG. 1 includes a tractor 10 and trailer 12. Connections between the tractor 10 and trailer 12 include seven pin electrical connections 14, 14', air brake supply line gladhands 16, 16' and air brake command line gladhands 18, ...