Description The Edwards EST 4-ANNCPU Annunciator Central Processor Unit is designed to support EST4 remote annunciator functions by providing mounting and connectivity for essential modules. It accommodates up to two network controllers, one USB device port, one USB host port, and one 4-ANNAUDTEL module for flexible integration. Technical Specifications Condition New/Never Used Surplus Brand Edwards Category Fire Safety Part Number 4-ANNCPU Subcategory Annunciator Processor Units Series EST4 Product Type Annunciator Central Processor Unit Supported Network Controllers Up to two EST4 network controllers USB Ports One USB 3.0 Type-A host, one USB 3.0 Type-B device Expansion Support One 4-ANNAUDTEL interface module Operating Voltage 16–32 VDC Operating Temperature 32 to 120°F (0 to 49°C) Relative Humidity 0–93% RH, non-condensing Application EST4 remote annunciators and fire alarm control units Weight Approximately 1.0 lb (0.45 kg) Information About 4-ANNCPU The 4-ANNCPU is an Annunciator Central Processor Unit developed for the Edwards EST4 fire alarm and life safety platform. It is the core processing unit for EST4 remote annunciators, enabling system status display and control functions throughout the network. The unit supports installation of up to two network controllers and allows expansion with one 4-ANNAUDTEL module. Equipped with both a USB device port and a USB host port, it provides flexible connectivity options, making it an essential module for extending annunciation capabilities across large or complex systems. Key Features: Multi-Controller Mounting: Supports installation of up to two network controllers for flexible configuration. USB Device Port: Provides connectivity for communication and device integration. USB Host Port: Enables peripheral connections to extend functionality. Expansion Capability: Compatible with one 4-ANNAUDTEL module for added annunciation features. EST4 Network Integration: Designed to operate seamlessly with Edwards EST4 fire alarm systems. Remote Annunciation Support: Allows system status and control functions at remote panel locations. Compact Modular Design: Lightweight construction for easy installation and service. Reliable Operation: Engineered for continuous use in critical fire alarm applications. The 4-ANNCPU delivers the reliability and precision required for annunciator processing in Edwards EST4 fire alarm and life safety systems.
