KONGSBERG SPBUS-HUB Bus Module

KONGSBERG SPBUS-HUB Bus Module
1. Basic Information

SPBUS-HUB Physical Unit

Front side of the module

Side-mounted Installation
Brand: Kongsberg Maritime
Model Number: SPBUS-HUB, Original Part Number: 600309
Position: Central hub for SPBus (Serial Process Bus), core communication node of the RIO400 remote I/O system

Core Functions
Bus Aggregation and Forwarding
Acts as an intermediate relay station between the master control unit (e.g., RCU500 controller) and multiple RIO400/RDIO400 remote I/O modules, consolidating multi-channel field I/O data and enabling unified communication with the host system, thereby simplifying wiring topology.

SPBus Protocol Relay
The SPBus protocol operates on a low-level RS-485 multi-drop bus with Manchester encoding, supporting a maximum data rate of 2 MHz. The module features built-in electrical isolation, making it suitable for long-distance in-ship cabling and resistant to salt spray and electromagnetic interference.

System Scalability and Expansion
A single hub can support multiple RIO400 sub-stations, enabling rapid expansion of digital and analog input/output points across the vessel. Supports redundant bus architecture to enhance system safety levels.

Fault Self-Diagnosis
Front-panel LED status indicators clearly show operational or fault conditions. Equipped with an internal BIT self-test circuit, capable of detecting and locating faults such as bus disconnection, short circuits, or module loss of communication, and supports remote loop debugging via the host station.

Key Electrical and Hardware Specifications Table
Parameter | Specification
Power Supply | 10–28.8 VDC (bus-powered, nominal 24VDC marine standard)
Power Consumption | ≤10W
Bus Isolation | 500V optocoupler isolation, eliminating ground potential interference
Installation Method | Standard DIN rail clip-on, plug-in terminal wiring
Dimensions | 127×229×178 mm
Net Weight | Approx. 0.3 kg
Operating Temperature | -20°C to +60°C (wide-temperature marine grade)
Protection / Certification | Marine IEC 60945 compliant—vibration, salt spray, and damp heat resistant; cabinet-mounted type