The SK5280-151238 is a Silent Knight replacement circuit board for the SK5280 Status Display Module (SBUS), identified by part number 151238. It interfaces with Silent Knight fire alarm control panels via SBUS and enables remote annunciation across up to 10 zones. The SK-5280 board uses a single connector with 10 outputs for alarms and 10 outputs for trouble, supporting consolidated status signaling in Silent Knight SK5208-based systems. This replacement card is intended for installation in Silent Knight systems to drive remote annunciators and monitor status across multiple zones. Remote annunciation can extend up to 1,500 ft on compatible SBUS wiring.
