Work element #31011, "Basic Metric Units and Conversions," is mandatory for certification at Levels II, III and IV. All other Level I General Core Work Elements constitute a mandatory requirement for achieving certification at Levels III and IV.
Understand the various types of fire alarm systems. Understand the electrical requirements, the alarm initiating devices, the control functions, the alarm indicating appliances and the power requirements of a fire alarm system. Know the types of signaling services that can be provided and the automatic fire detectors in common use. (NFPA 72, 101, Fire Alarm Signaling Systems)