What is a key attribute of the remote supervising station system?

A key attribute of a remote supervising station system is that it informs outside responders of an emergency. This system is specifically designed to monitor alarm signals from a protected building and communicate these signals to appropriate emergency personnel, such as fire departments or police, when necessary. By doing so, it ensures that help is dispatched in a timely manner, which is critical during an emergency situation. This automatic notification system is essential for rapid response and mitigation of potential hazards.

In contrast, the other options do not accurately reflect the primary function of a remote supervising station. For example, a system that only activates alarms within a building would not provide the critical connection to outside responders, leaving the emergency response less effective. If a system required manual intervention to alert authorities, it would introduce delays that could be detrimental during a crisis, undermining the primary purpose of immediate emergency notification. Additionally, providing no visual alerts would not align with the functionality of a remote supervising station, which typically includes various methods of communication to ensure that all necessary parties are aware of the emergency situation.