The Kongsberg Autronica EAC-300A/B-4 (featuring variants like the EAC-300 and EAC-300/M) is a high-performance microprocessor-based processor PCB card designed primarily for marine fire detection and alarm control panel systems (such as the Autronica BS-310 and BS-320 series). Engineered for critical safety applications onboard vessels and industrial facilities, this controller card manages core system logic, loop communications, and event processing to ensure rapid response times and absolute reliability.
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Technical Parameters & Datasheet Overview
- Product Model / SKU: EAC-300A/B-4 / EAC-300/M
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- Part Numbers: 7252-087.0001 / 7252-007.0002 / 9252-087.2002
Marine Automation, Marine & Industrial Electronics, Compressor Parts, United Marine Services
- Processor Architecture: Embedded microprocessor core (e.g., integrated 386EX with onboard memory configurations such as 4MB)
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- Operating Voltage: 24V DC / 27V DC standard industrial and marine panel power rails
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- Enclosure / Mounting: Plug-in printed circuit board card designed for standard internal rack or panel mounting rails
- Approximate Dimensions: Standard modular PCB form factor tailored for Autronica control panel card racks (approx. 200 mm x 150 mm)
- Approximate Weight: Approx. 0.1 kg to 0.2 kg (0.22 to 0.44 lbs)
- Country of Origin: Norway / Global maritime manufacturing standards
- Operating Temperature Range: −5∘C to +55∘C marine environment standard
Applications
- Marine Fire Alarm Control Panels: Deployed as the central processing unit card within Autronica BS-series fire detection and alarm systems on commercial ships and offshore installations.
- Industrial Safety Systems: Coordinates addressable detector loops, input/output modules, and emergency annunciation nodes in complex safety architectures.
Usage Precautions
- Electrostatic Discharge (ESD): Always handle replacement PCB cards on an anti-static mat while wearing a grounded wrist strap to protect sensitive microprocessors and memory chips.
- Power Isolation: Completely de-energize the fire detection control panel and disconnect backup batteries before inserting or removing any internal processor or loop cards.
- Firmware / Revision Verification: Ensure the replacement card part number and software revision match the specific technical specifications of the host control panel configuration.
Parameter Settings & Configuration Methods
- System Software Loading: Configuration data, address maps, and system logic are downloaded to the processor card via dedicated Autronica service tools or onboard programming interfaces.
- Jumpers and Switches: Verify any physical address or termination jumper settings on the board layout against the system technical manual prior to startup.
- Non-Volatile Memory: Critical site-specific configuration data is retained in onboard non-volatile memory during standard system power cycles or reboots.
Manual / Automatic Mode Switching
- Microprocessor Supervised Control: System operations transition seamlessly between normal monitoring, fault isolation, and alarm states automatically under the control of the embedded firmware.
- Operator Panel Integration: Manual controls, such as alarm silencing or event acknowledgment, are handled directly through the fire alarm panel’s front keypad and display interface, which communicates with this processor card.
Emergency Trip Operations
- Fail-Safe Watchdog Monitoring: Built-in hardware watchdog circuits continuously monitor processor health, automatically triggering system fault relays or backup routines if a software exception occurs.
- External Safety Loops: Integrates directly with fire extinguishing release panels, local operating networks (AutroLON), and general alarm interfaces to execute emergency safety shutdowns instantly.
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Frequently Asked Questions (Q&A)
Q: Which fire alarm panels use the EAC-300A/B-4 processor card? A: It is primarily utilized in Autronica BS-310 and BS-320 series fire detection and alarm control panels.
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Q: Is the processor card hot-swappable? A: No, power and backup batteries to the control panel must be completely disconnected before replacing internal circuit boards to prevent electrical damage.
Q: Does a replacement card require custom programming? A: Yes, replacement processor cards typically need to be configured or loaded with the specific site application software corresponding to the vessel or facility layout.
Industry News & Updates
Marine safety and fire detection systems continue to advance with greater emphasis on network redundancy, self-diagnostic capabilities, and strict compliance with international maritime regulations (such as EN-54 and MED standards). Maintaining legacy and modern fire control panels with genuine, certified processor cards ensures continuous vessel safety compliance, prevents false alarms, and avoids expensive port detentions or operational downtime.
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Related Series & Alternative Models
- Autronica BS-310 Fire Alarm Control Panels
- Autronica BS-320 Interactive Fire Detection Systems
- Autronica BSD-330 Loop Interface Cards
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- Autronica BSF-310B LON Communication Cards
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- Autronica BSS-103A Power Supply Boards
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- Autronica AutroSafe Interactive Fire Detection Panels
- Kongsberg Autochief Propulsion Control Processor Cards
- Autronica Detector Loop Driver Modules
- Autronica Multi-Cabled I/O Interface Units
- Autronica Fire Alarm Repeater Panel Boards
