Technical Specifications
- Product Model: N11121
- Brand: CONSILIUM
- Warranty: One Year
- Input Voltage: 24 VDC (Marine nominal supply)
- Operating Temperature: -10°C ~ +55°C
- Storage Temperature: -25°C ~ +70°C
- Response Time: ≤ 3 seconds alarm signal transmission
- Protection Class: IP30, suitable for indoor cabinet mounting
- Accuracy Class: N/A
- Output Frequency: N/A
- Rated Current Range: 0.1 A – 1.2 A
- Communication Interface: Marine fire alarm loop terminals, relay output contacts
- Supported Protocols: Consilium proprietary fire detection loop protocol
- Overload Capacity: Short-circuit protected loop circuits with automatic reset function
- Dimensions (W×H×D): 220 mm × 145 mm × 68 mm

Product Overview
The CONSILIUM N11121 is a marine-grade fire alarm interface module designed to integrate detectors, manual call points and auxiliary signalling equipment into Consilium fire safety systems onboard seagoing vessels. This hardware addresses signal conversion and loop management challenges in marine environments, mitigating risks of false alarms caused by humidity, vibration and onboard electrical noise. Marine safety officers, shipyard engineers and system maintenance technicians trust CONSILIUM safety components to comply with international maritime fire protection regulations. The module maintains continuous supervision of connected field devices, transmits fault and fire signals to the main control panel, and provides relay outputs to activate ventilation shutdown, door release and other safety interlock equipment. (Word count: 169)
Key Functions
- Fire Detection Loop Supervision: The module constantly monitors circuit integrity for all connected smoke, heat detectors and call points. Immediate fault notifications are triggered for open circuits, short circuits or disconnected field devices to avoid unmonitored hazard zones.
- Alarm Signal Routing & Relay Actuation: Upon receiving fire signals from field equipment, the unit forwards alerts to the main fire control panel and energises configurable relay outputs. These contacts trigger critical safety actions such as fan shutdown and fire damper closure.
- Marine Noise Filtering for Signal Stability: Built-in signal filtering suppresses electromagnetic interference common in engine rooms and switchboard areas. This capability reduces unwanted false alarms that could disrupt vessel normal operations.
- Standardised System Compatibility: Designed to work seamlessly with established CONSILIUM fire alarm control panels. Uniform electrical and mechanical layout simplifies spare part replacement and minimises downtime during vessel inspections or maintenance.
Application Scenarios
- Commercial Cargo Vessel Fire Safety Systems: Installed in fire control cabinets to monitor detection loops across accommodation areas, engine rooms and cargo holds. The CONSILIUM module ensures continuous hazard monitoring required for mandatory marine safety certification surveys.
- Offshore Platform & Support Vessel Safety Retrofits: Used during refit projects to upgrade ageing fire detection infrastructure. It connects existing field detectors to updated main panels without complete rewiring of vessel detection circuits.
- Passenger Vessel Accommodation Zone Monitoring: Manages detection loops within passenger cabins and public spaces. Reliable signal supervision supports rapid fire identification, critical for protecting personnel on passenger-carrying marine assets.


