What system can fire apparatus be connected to outside of a building to assist during a fire?

The Fire Department Connection (FDC) is a critical component that allows fire apparatus to connect to an external water supply during firefighting operations. This system is specifically designed for this purpose, enabling firefighters to quickly access additional water to supplement the building's sprinkler system or provide direct water for extinguishing fire. The FDC is typically located near the entrance of a building and is marked for easy identification, ensuring swift access in emergency situations.

Connecting to the FDC is essential because it provides a reliable source of water that can be used to combat a fire effectively, especially when the existing water supply within the building is insufficient or compromised. Firefighters can connect hoses directly to the FDC, facilitating rapid deployment and maintaining a steady flow of water.

Other systems mentioned, such as the Water Supply Network and Emergency Water System, serve broader purposes or are designed for different contexts, but they don't specifically refer to connections that allow fire apparatus to draw water directly for firefighting operations outside the building. Likewise, an Automatic Suppression System is generally a fixed system installed within a structure to automatically suppress fires but does not involve a direct connection for apparatus on the outside. The FDC uniquely addresses the immediate need for access to water from a fire truck during an incident.