Kongsberg RSER200-4 603444 input module Marine systems
Kongsberg RSER200-4 603444 Serial Communication Input Module (Marine Systems)
1. Basic Product Identification
Full part number: RSER200-4, KM spare code 603444Manufacturer: Kongsberg MaritimeProduct series: RIO200 remote I/O serial interface module, categorized as multi-channel serial input communication module for marine automation control systemsCommon hardware revision versions: Rev 1.0.4, Rev 1.0.5Matching system platform: K-Chief 600 marine integrated monitoring & alarm system, RCU redundant controller unit systemProduct positioning: Serial signal acquisition gateway, responsible for collecting serial data from shipborne third-party navigation, sensor and auxiliary equipment and forwarding to main control units
2. Serial Channel Hardware & Signal Specifications
Field channel quantity: 4 independent isolated serial field ports marked X1, X2, X3, X4Per-channel configurable signal standards, software switchable without hardware modification: RS232, full-duplex RS422, half-duplex RS485Supported baud rate range for every single channel: 300 bps up to 115200 bps, independent parameter configuration for each portCable load limit for field wiring: Maximum line length 100 meters, line capacitance less than 50 pF per meterFull galvanic isolation between all four field serial channels and internal RBUS backplane circuit, isolation withstand voltage 500 V DC, suppress marine ground loop interferenceHardware data buffer built into each channel, supports hardware-level data caching to avoid message loss during high-frequency data transmissionSupports multi-topology RS485 bus wiring, including single loop, dual redundant loop and multi-drop multi-node bus layout, compatible with master-slave polling communication mode
3. Electrical Power Supply Parameters
Nominal operating supply voltage: 24 V DCAllowable wide input voltage tolerance range: 18 V DC to 30 V DCTypical steady-state operating current consumption at rated voltage: approximately 0.8 APower circuit equipped with surge inrush current suppression and overvoltage reverse polarity protection circuitsSupports dual redundant power supply input matching marine cabinet power distribution standards, with built-in power loss fault diagnostic signal
Power supply derived from either RIO200 backplane RBUS bus or local external 24 V DC terminal wiring
4. Onboard Interface Layout Definition
Backplane system bus ports: Dual RBUS A and RBUS B Phoenix 5-pole terminal connectors, realizing redundant connection to RCU main controllersController interconnection ports: Three RJ45 Ethernet sockets labeled P1, P2, P3, can connect up to three sets of A/B/C redundant master controllersService debugging port: Standard USB Type-B port P4 on front panel for local firmware upgrade, channel parameter configuration and offline data log readingField signal terminals: Screw-type terminal blocks for X1–X4 four serial field channels, convenient field wiring maintenanceSystem status indicator set: LED indicators for power running, RBUS communication fault, each serial channel transmit/receive activity, module watchdog alarm
5. Communication Protocol Compatibility
Marine standard navigation protocol native support: NMEA 0183 for GPS, gyrocompass, echo sounder, wind sensor signalsIndustrial serial bus protocols: Modbus RTU master/slave mode for pump, valve, generator auxiliary control equipmentFree-format ASCII transparent transmission mode for custom third-party ship machinery equipmentBuilt-in bus command logic, supports three-stage peripheral power switch control and RS485 master-slave address automatic assignment
6. Mechanical Installation & Dimension Parameters
Overall outer dimension (width × height × depth): 35 mm × 130 mm × 130 mmNet module weight: 0.34 kgMounting standard: Dual DIN rail snap-on installation inside marine control cabinet, no extra fixing brackets requiredShell structure: Compact metal frame with PCB conformal three-proof coating (moisture-proof, mildew-proof, salt spray resistant) adapted to ship cabin corrosive atmosphereFront panel protection grade: IP20, only suitable for fully enclosed electrical cabinet installation, not for open deck direct exposure
7. Environmental Marine Adaptability Index
Continuous operating ambient temperature range: -15 °C to +70 °CStorage transportation temperature range: -25 °C to +70 °CRelative humidity operating condition: 5% to 95% non-condensing, meets ship engine room high humidity environmentVibration resistance standard: 0.7 g continuous vibration tolerance, compliant with marine machinery cabin vibration requirementsEnvironmental compliance standards: IEC 60945 marine electronic equipment general standard, IACS E10 ship automation equipment specification
8. Reliability, Safety & Marine Certifications
Functional safety compliance: Single module layout satisfies SIL 1, dual redundant hot backup layout reaches SIL 2 / SIL 3 per IEC 61508Explosion protection certification: Ex Zone 2 approval for installation inside hazardous machinery spaces of vesselsInternational marine classification society type approvals: DNV GL, ABS, Lloyd’s Register LRAverage MTBF service life under standard marine operating environment over 250000 continuous working hoursHardware watchdog safety mechanism, programmable timeout maximum 1 second, automatically cut off abnormal serial channel communication and trigger system fault alarm when communication loss occurs 
