Cooper CZMU352 Intelligent Addressable Zone Monitor Unit

The Cooper (Eaton) CZMU352 is a high-performance interface module that enables the integration of conventional fire detection zones into a modern intelligent addressable system. It is particularly useful for upgrading older systems or connecting specific areas (like individual shop units in a mall) to a central addressable loop. The unit monitors the conventional spur for open and short-circuit faults, as well as earth contact, and reports these directly to the control panel. It features automated soft-addressing and an integral short-circuit isolator to maintain system integrity. While it is loop-powered, it can support up to 20 conventional detectors. An intrinsically safe version (CZMU352-IS) is also available for hazardous areas when used with appropriate safety barriers.

Technical Specifications
? Brand: Cooper (Eaton)
? Model/Part No: CZMU352
? Operating Voltage: 18 V DC to 30 V DC
? Quiescent Current: 310 ?A
? Output Voltage: 18 V DC to 24 V DC (Zone Power)
? Zone Capacity: Up to 20 Conventional Detectors
? End of Line Resistance: 5.6 k?
? Addressing Mode: Soft Addressing
? IP Rating: IP30
? Dimensions: 88 mm x 147 mm x 38 mm (3.46 inch x 5.79 inch x 1.50 inch)
? Operating Temperature: -10?C to +55?C

Key Features
? Conventional Zone Integration: Allows a zone of up to 20 conventional detectors to be seamlessly integrated into an intelligent addressable fire system.
? Loop Powered Efficiency: Draws all necessary power for both the module and the conventional zone directly from the loop, eliminating the need for external power supplies.
? Intelligent Soft Addressing: Automatically assigned an address by the control panel, streamlining the commissioning process and reducing manual configuration.
? Integrated Short-Circuit Isolator: Protects the integrity of the addressable loop by isolating local faults, ensuring the rest of the system remains fully functional.
? Comprehensive Monitoring: Provides full supervision for open or short circuit faults and alarm conditions on the conventional zone for enhanced safety.