Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Lyngsø Marine |
| Model | RM401 |
| Part number | 962.003.500 |
| Product category | Marine control module |
| Hardware type | Electronic control PCB / module |
| Application | Shipboard automation |
| Input channels | Not confirmed |
| Output channels | Not confirmed |
| Rated voltage | Not confirmed |
| Current consumption | Not confirmed |
| Communication interface | Not confirmed |
| System bus | Not confirmed |
| Firmware revision | Not confirmed |
| Operating temperature | Not confirmed |
| Protection rating | Not confirmed |
| Weight | Approximately 0.46 kg reported in a secondary listing |
The weight is a catalog listing value, not an OEM mechanical specification.
Product Introduction
The Lyngsø Marine RM401 is an electronic control module intended for legacy marine automation equipment. It is identified under part number 962.003.500 in component records. Its classification as a control module indicates an electronic control-system assembly, but the exact functional role should be established from the vessel’s original system drawings and the module’s PCB identification.
For maintenance engineers, the critical issue is compatibility with the installed Lyngsø control architecture. A matching model designation alone does not establish that a replacement has the correct firmware, connector arrangement, electrical characteristics, or system configuration. This is especially important in marine machinery monitoring systems where an incorrect module can affect alarm processing or equipment control.
RM401
Application Scenarios and Field Pitfalls
Potential application areas
- Legacy Lyngsø Marine automation installations.
- Shipboard machinery control and monitoring cabinets.
- Marine control-system maintenance and electronic board replacement.
- Restoration of discontinued vessel automation equipment.
Important engineering checks
- Confirm the complete part number. Match RM401 with 962.003.500 and check all PCB revision markings.
- Identify the host system. Record the vessel’s automation system model and the module’s original rack or cabinet position.
- Verify electrical requirements. Do not assume a 24 VDC supply without checking the original wiring diagram.
- Inspect connectors and PCB condition. Look for corrosion, salt contamination, damaged terminals, and previous component repairs.
- Check firmware and configuration. Confirm whether the replacement requires parameter transfer or system-specific programming.
- Perform system-level testing. Verify the module’s actual input, output, and communication functions before returning the equipment to service.
Related Products and System Components
| Model | Description | Relationship |
|---|---|---|
| DEM401 – 962.004.600 | Digital input module | Related Lyngsø Marine product |
| DRM401 – 962.004.800 | Digital relay module | Related I/O family |
| DNM401 – 962.002.600 | Dual system bus module | Related system component |
| RM401 – 962.003.500 | Marine control module | This product |
These products belong to the broader Lyngsø Marine component range. They are not interchangeable replacements for RM401.
Procurement and Quality Control
Secondary industrial records identify the RM401 as discontinued. Current OEM production and technical support status should be confirmed before maintenance planning.
Before purchasing, request:
- Front and rear photographs of the complete module.
- Confirmation of part number 962.003.500.
- PCB assembly and revision markings.
- Connector and terminal photographs.
- Confirmation of the original vessel and automation-system model.
- Power-up and functional test documentation.
- Inspection for corrosion, moisture damage, and PCB repairs.
- Clear condition disclosure: new old stock, unused surplus, or refurbished.
Replacement recommendation: Specify Lyngsø Marine , 962.003.500. Do not substitute another Lyngsø 401-series module based on the shared model-number format. Verify the exact board function and host-system compatibility before installation.
