The Kidde ANSZM4B2A Zone Splitter Module takes the speaker output from an ANS Series amplifier and distributes it across multiple supervised circuits for audio notification. Instead of running a single speaker loop off the ANS25, ANS50, or ANS100, the zone splitter breaks that output into individually supervised zones, each monitored for open and short fault conditions.
Built for the fire alarm installer
Audio notification systems in commercial buildings often need speaker circuits split across multiple floors, wings, or zones. The ANSZM4B2A handles this at the module level, using output relays to distribute power from a single ANS amplifier output to separate supervised circuits. Modules can be cascaded to expand the zone count beyond a single board's capacity, so the system scales with the building.
Key capabilities
- Splits ANS amplifier output into multiple supervised zones for floor-by-floor or wing-by-wing audio distribution
- Open and short circuit supervision on each individual output circuit for trouble reporting at the FACP
- Cascadable design: stack multiple modules to increase the number of zones as the system grows
- Compatible with ANS25, ANS50, and ANS100 audio notification amplifiers
- Relay-based distribution for clean, reliable audio power routing without signal degradation
System requirements
Requires a Kidde Commercial ANS Series audio notification amplifier (ANS25, ANS50, or ANS100). Connects to the amplifier's speaker output terminals. Consult the ANS system installation manual for wiring details and maximum cascade depth.
