General Information

Comprehensive Feature

The 05704-A-0146 is a Honeywell System 57 microprocessor-based Four Channel Fire Control Card featuring integrated multi-zone safety monitoring. Fully compatible with the System 57 backplane, this unit works seamlessly with flame, smoke, and heat detectors to deliver flexible parameter programming, real-time loop fault tracking, and stable industrial fire detection communication.

Specific Application

• Multi-Zone Fire Loop Management: Driving, processing, and validating up to four independent fire detection zones (supporting mixed layouts of smoke detectors, flame detectors, heat sensors, and manual call points) inside a centralized rack system.
• Fault-Monitored Executive Signaling: Controlling and evaluating two independent, fault-monitored switched DC outputs alongside a minimum of six voltage-free relay paths to trigger local bells, suppression triggers, or ventilation systems.
• Rack Space Optimization: Packing standalone microprocessor safety intelligence and sensor loop drive capabilities into a tight 1-inch wide module footprint to optimize multi-loop industrial control rooms.

Ordering Information

System Compatibility

· Racking Units: Slides directly into standard System 57 sub-racks, including full 19-inch high-density frames (holding up to 15 fire cards) and half 19-inch frames (holding up to 7 fire cards).

· Interface Hardware: Interconnects with the rear Hex Relay Interface Card (05704-A-0131) or a full 16-relay Fire Relay Interface Assembly (05704-A-0123) through matching backplane connectors and plug-and-socket arrangements.

· Peripherals: Links over the internal backplane data highway to a required 5704FS Fire Status Panel (05704-A-0148) for global operator control and an Engineering Card (05701-A-0361) for complex configurations.

Alternative Model & Differences

· Alternative Model: Four Channel Gas Control Card 4 - 20mA Input (Part Number 05704-A-0145).

· Key Differences:

o Core Application Focus: The 05704-A-0146 is engineered strictly for fire zone monitoring (detecting binary/state changes in flame/smoke sensors), while the 05704-A-0145 is built to track continuous 4-20mA gas concentration currents.

o Onboard Executive Outputs: The 05704-A-0146 houses two integrated fault-monitored switched DC outputs to drive visual or audible field notifications directly, a feature completely missing on the standard analog gas card.

o User Panel Interface: The fire control module uses distinct status LEDs designed for quick zone event tracking, while the gas variant relies on a backlit LCD micro-meter display to trace moving gas parts-per-million levels.

Installation & Troubleshooting FAQ