FZM-1 is a standard-sized module used to monitor and supervise compatible two-wire, 24 volt, smoke detectors on a Class A (Style D) or Class B (Style B) circuit.
The HN-S600P features 3 microphones, 2 auxiliary inputs and 1 line out. It comes with an automated mute function for paging and announcements, as well as individual input gain controls (with master vo