In the event of an event detection, an alarm is immediately transmitted to the signalling system. This transmission takes place via a proprietary radio link in the form of an addressed and coded alarm message. Different types of alarms can also be distinguished, which trigger different alarm patterns.
Immediately after receiving an alarm message, the signalling system triggers the corresponding alarm pattern. As a rule, traffic lights, sirens and rotating lights are activated to close a traffic axis or evacuate an endangered zone. This alerting takes place automatically and immediately.