The digitized model trains come to a prototypical smooth halt in front of signals showing red. For this purpose the braking generator supplies a special digital signal to some braking sections so that the trains move out smoothly. Yet all of the activated functions such as light, sound etc. remain switched on. In this case one brake generator is sufficient for many braking sections; please pay attention that their power requirements remain under 2.5 A. If your braking sections require more power (e .g. because of many illuminated coaches), then simply use more braking generators.
Each braking generator requires its own 670601 transformer.