The NORCONTROL OPU 8810 is a specialized industrial printer interface unit designed for marine automation and engine control systems. Primarily manufactured by Kongsberg Norcontrol (often found on vessels with Hyundai or Autochief systems), it serves as the critical bridge for logging engine alarms, telegraph orders, and process data. It is engineered to withstand the rigorous vibrations and electrical interference typical of a ship’s engine room or bridge environment.
Technical Specifications and Datasheet
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Product Model: OPU 8810
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Power Supply: 110V / 220V AC (50/60Hz) Dual Compatibility
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Internal Voltage: 24V DC (via NA1117 motherboard)
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Main Processor: II HA220853B I/O Processor Card
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Interface Type: Dual Centronics Parallel Interface (HA331256B/B)
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Communication: Parallel communication (requires line amplifier for cables >5m)
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Dimensions: Approximately 280mm x 210mm x 150mm (Unit frame)
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Weight: 10.44 kg
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Origin: Norway / China (Kongsberg Global Production)
Application Fields
The OPU 8810 is a legacy standard in marine engineering, specifically utilized in:
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Ship Automation Systems: Integrated with DataBridge 2000 and NorView-2000 monitoring suites.
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Engine Logging: Automatically prints time-stamped logs of engine performance and operator commands.
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Alarm Monitoring: Real-time hardcopy output for critical system failures to meet maritime safety regulations.
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Telegraph Order Recording: Archives bridge-to-engine-room maneuvers for legal and operational review.
User Instructions
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Mounting: Secure the OPU 8810 inside a protective control cabinet. Ensure the unit is grounded to the common ship ground to prevent EMI.
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Cable Connections: Use shielded parallel cables for the Centronics interface. If the printer is located further than 5 meters from the OPU unit, an optional line amplifier must be installed.
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DIP-Switch Configuration: Before operation, check the DIP-switches on the internal motherboard. These must match the specific baud rate and handshake protocol of your external printer (e.g., EPSON LX-series).
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Power Sequencing: Ensure the 110/220V selector is correctly set before applying AC power. Verify the status LEDs on the HA220853B card illuminate green.
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Paper Replacement: Maintenance is performed via the external printer connected to the OPU. Always perform a “Self-Test” print after changing ribbon or paper rolls.
Q&A: Common Troubleshooting
Q: The OPU unit is powered on, but the printer is not responding? A: Check the Centronics cable connection. Marine vibrations often loosen these clips. Also, verify that the external printer is “Online” and that the OPU’s internal I/O processor card is not showing a Red fault LED.
Q: Can I use a modern USB laser printer with the OPU 8810? A: No. The OPU 8810 uses legacy Centronics parallel communication. To use a modern printer, you would require a specialized industrial parallel-to-USB converter, though dot-matrix printers (like OKI or Epson) are recommended for continuous logging.
Q: What should I do if the printout contains garbled characters? A: This usually indicates a mismatch in the DIP-switch settings between the OPU 8810 and the printer. Refer to the manufacturer’s handbook to synchronize the character set and protocol settings.
Similar Model Recommendations
For those maintaining or upgrading Norcontrol systems, the following related units are often required:
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NORCONTROL APU 8810: Alarm Process Unit used in conjunction with the OPU for signal distribution.
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NORCONTROL SSU 8810: Safety System Unit designed for emergency engine shutdown protocols.
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NORCONTROL SAU 8810: Signal Acquisition Unit for collecting analog/digital data from engine sensors.
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ABB PUM671: A common alternative for modernizing marine process control and logging.
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KONGSBERG AutoChief 4/C20: The full-scale propulsion control system that often hosts the OPU 8810.
