What is the role of fire department connections (FDC)?

The primary role of fire department connections (FDC) is to provide an external water supply to the sprinkler system for firefighting efforts. FDCs serve as a crucial link for firefighters to connect hoses and access additional water from a municipal supply or other sources, ensuring that there is enough water flow available during a fire incident to support the sprinkler system. This is vital for enhancing the effectiveness of the fire protection system, especially in large buildings or when the capacity of the internal water supply may be insufficient.

The other options reflect different aspects of fire safety and prevention but do not accurately describe the function of FDCs. Portable fire extinguishers, for example, serve as convenient and readily accessible firefighting tools but are not connected through FDCs. Monitoring fire alarm systems involves different technology and processes, not related to the water supply. Additionally, maintaining pressure in the fire system is typically managed through pumps and pressurized pipes rather than through the FDC itself.