The DAB-7 Motherboard carries all installed option cards that make up a DAN-7 cabinet. The DAN-7 Distributed Addressable Node is a remote data gathering cabinet for incoming and out- going signals in the Life Safety Net 2000 (LSN 2000) system. A single cabinet may serve a floor, a group of floors, or an entire building, and may be used for Fire Protection, Mass Notification, Communication, Security, Lighting and HVAC Systems. The DAN Cabinet consists of a CAB-50 enclosure, and is capable of mounting the DAB-7 Motherboard and its associated power supplies with batteries.