FLM‑420‑NAC-D Signaling Device Interface Modules make it possible to monitor and activate a group of signaling devices (NAC = Notification Appliance Circuit) in the Local SecurityNetwork LSN. FLM‑420‑NAC‑D for surface-mounting with housing.
Each interface module offers one monitored primary line. This means one signaling device line can be connected to LSN fire panels. The following can be connected: Sounders, strobes, horns.