Technical Specifications​

Supply: 24 VDC nominal, 18–32 VDC range

Power consumption: max 45 W

Digital inputs: 128 galvanically isolated binary alarm inputs

Relay outputs: 64 SPST, 5 A / 250 VAC

Communication: dual redundant CAN bus, RS485 Modbus RTU, Ethernet TCP/IP

Operating temperature: -20 to +60 °C

Storage temperature: -40 to +70 °C

Protection: IP30 front panel, IP20 internal

Compliance: IEC 60945, DNV, ABS, LR marine standards

Performance Parameters​

Input scan cycle: 10 ms

Alarm transmission delay: ≤ 20 ms

Event log capacity: 10,000 events

Data retention: ≥ 10 years non-volatile

Relay life: 10,000,000 switching cycles

Vibration: 2–100 Hz, 1 mm amplitude

Material Composition​

Front panel: 3 mm cold-rolled aluminum alloy with anti-corrosion coating

Chassis: galvanized steel sheet metal

PCB: FR4 high-temperature flame-retardant

Terminals: glass-fiber reinforced PA66 with tin-plated copper contacts

Structural Characteristics​

19-inch rack mount

6U height

Modular pluggable I/O cards

Separated power, signal and communication compartments

Working Principle​

Continuously polls isolated binary sensor inputs, filters noise, timestamps valid alarms, stores events in flash memory, activates relay outputs and broadcasts status over redundant CAN/Ethernet buses.

Application Scenarios​

Cargo ships and container ships

Tankers and bulk carriers

Passenger ferries

Naval auxiliary vessels

Offshore support vessels

FPSO units

Installation Requirements​

Install in climate-controlled machinery room cabinet

Ambient humidity ≤ 90% non-condensing

Maintain 50 mm clearance above and below

Separate signal and relay wiring by at least 10 cm

Use filtered marine 24 VDC supply with surge protection

Earth chassis with 4 mm² copper ground cable

Usage Precautions​

Do not operate outside -20 to +60 °C

Avoid salt spray and unventilated humidity

Disconnect power before removing I/O modules

Do not exceed 16 units on one CAN bus segment

Calibrate I/O channels every 12 months per marine regulations