Description The Simplex 8742-349 CPU Board is the primary control processor for the 4009A fire alarm control unit. It manages system logic, communication, and supervisory functions, ensuring reliable operation of the 4009A panel in life safety applications. Technical Specifications Condition New/Never Used Surplus Brand Simplex Category Controls & Indicators Part Number 8742-349 Subcategory CPU/Control Board System Compatibility Simplex 4009A fire alarm panels Function Master CPU / Control Processor Operation Processes alarm, supervisory, and trouble events Communication Interfaces with panel I/O and network modules Programming Supports site-specific configurations Installation Fits directly into 4009A chassis Replacement Use Service/replacement board for 4009A Reliability Designed for continuous 24/7 operation Status Discontinued by manufacturer Weight 0.40 lbs (approx.) Information About 8742-349 The 8742-349 is a CPU board designed for the Simplex 4009A series remote power supplies and booster panels. It provides central processing capability, coordinating system inputs, outputs, and panel status functions. The board supports programmable logic, panel supervision, and communication with associated fire alarm control units. As part of the 4009A hardware platform, it ensures compatibility with multiple Simplex modules and enables reliable integration into large-scale fire alarm networks. Key Features: Primary CPU Board: Provides master processing for the Simplex 4009A remote power supply/booster panel. System Control: Manages system inputs, outputs, and annunciation functions for reliable performance. Communication Support: Interfaces with connected devices and panels for data and alarm reporting. Programmable Logic: Supports site-specific programming and control functions. Event Processing: Handles alarm, supervisory, and trouble signals for system reliability. 4009A Compatibility: Specifically designed to operate with the Simplex 4009A hardware series. Stable Operation: Ensures dependable performance in demanding fire alarm environments. Compact Design: Lightweight form factor for easy installation within the 4009A panel chassis. Replacement Part: Serves as a direct replacement CPU for maintaining 4009A panel functionality. Field Proven Reliability: Widely used in existing Simplex fire alarm installations. The 8742-349 delivers the processing power and dependability required for continuous operation of the 4009A fire alarm control system.
