- Manufacturer: Kongsberg Maritime
- Model Identification: RSER200-4 (Remote Serial Module)
- Part Number: 603444
- Module Type: 4-Channel Serial Communication Input/Output Module
- Interface Standards: RS-422, RS-485, and RS-232 software-configurable channels
- Supply Voltage: 24V DC (nominal) via the RCU internal bus
- Isolation: Galvanic isolation between channels and internal logic for surge protection
- Data Rates: Supports baud rates from 300 bps up to 115.2 kbps
- Connector Type: Plug-in terminal blocks for easy field wiring and maintenance
- Operating Temperature: -15°C to +70°C (marine grade)
- Status Indicators: Integrated LED diagnostics for Power, Tx/Rx activity, and Module Status
- Marine Certification: Type Approved by DNV, ABS, GL, and BV for maritime automation
The Kongsberg RSER200-4 functions as a versatile bridge between serial-based field instruments and the K-Chief automation backbone, enabling seamless data acquisition from GPS units, weather sensors, and AIS systems. This specific 603444 hardware revision is optimized for high-speed serial processing, ensuring that time-critical NMEA data strings or Modbus RTU packets are handled with minimal latency. Its ruggedized design includes enhanced filtering to eliminate electrical noise common in shipboard environments, providing a stable communication path for essential navigation and engine room monitoring systems.
RSER200-4
Differences from Similar Models
The RSER200-4 603444 is distinguished from the standard RDI (Digital Input) or RAI (Analog Input) modules by its dedicated processing of asynchronous serial data rather than simple voltage levels. Unlike the older RSER200-2, which only provided two channels, this 4-channel version doubles the connectivity density in a single DIN-rail footprint, significantly reducing hardware costs and cabinet space requirements. Furthermore, while some generic serial converters lack isolation, the 603444 offers full galvanic separation for every channel, preventing a single faulty field device from damaging the central RCU controller.
Operating Tips
When configuring the RSER200-4, ensure that the termination resistors are correctly set for RS-485 daisy-chain networks to prevent signal reflection and data corruption. It is highly recommended to use high-quality shielded cables and to ground the shield only at the module end to avoid ground loops that can interfere with sensitive serial transmissions. If the module fails to communicate after a firmware update to the main controller, check the module’s internal address settings to ensure they align with the system’s updated I/O map.
