What is the term for a smoke detector that is interconnected with a base building fire alarm system?

The correct term for a smoke detector that is interconnected with a base building fire alarm system is termed a "Sub-system." In the context of fire safety, a sub-system refers to a specific system or component that works in conjunction with a larger primary system, which in this case would be the base building fire alarm system. These interconnected smoke detectors enhance safety by ensuring that any activation of the smoke detector can trigger the broader alarm system, alerting occupants and responding teams more effectively.

The interconnection allows for improved communication between safety systems, ensuring that if one element detects smoke or fire, information is shared throughout the entire network, facilitating a quicker and more coordinated response. This is essential in a multi-tenant building where safety systems need to work harmoniously to protect all occupants effectively.

The other terms provided do not accurately describe this relationship. An auxiliary system might refer to a backup or supplementary system that functions independently, whereas a tenant-system typically pertains to fire safety measures specifically installed within individual tenant spaces, separate from the base building systems. A supplementary-system suggests additional components that do not inherently imply interconnection, thus, the term "Sub-system" is the most accurate choice.