The Global Scalable Brake Controller (GSBC) is an electronic air braking system used in trucks. As the name suggests, it can be scaled to any type of axle configuration
 It takes the brake demand from the foot brake module (FBM) and converts it into equivalent air pressure which is then created in the brake chambers and corresponding braking is applied
 It also collects the braking requests from other ECUs which require braking features, e.g., Electronic Stability Control(ESP), Hill Holder and Automatic Traction Control(ATC). The air pressure is created in the brake chambers using the Electronic Pressure Modulators (EPM)