Kongsberg RDI-32A (RDi-32A) Remote Digital Input Module

Product Description

The Kongsberg RDI-32A (RDi-32A) is a marine-grade remote digital input module for Kongsberg K-Chief 500 and AutoChief C20 marine monitoring and alarm systems. It features 32 digital input channels for active voltage signals, including 24VDC and 24VAC (50–70Hz). It transmits time-stamped discrete status data to the main controller via redundant CANopen fieldbus, widely used for collecting equipment status, valve feedback, switch and alarm signals on ships and offshore platforms.

Features

• 32 optically isolated digital input channels, designed for active 24VDC / 24VAC signals
• Dual redundant CANopen 4.0 fieldbus communication, time-stamped data transmission
• 24V DC power supply, marine anti-vibration, damp and wide temperature design
• On-board self-diagnosis, wire break detection, alarm block and trend recording function
• Individual LED status indicators for each channel, watchdog, run and fault status
• Plug-in screw terminal connectors, no internal jumpers, remote parameter configuration
• Galvanic isolation, strong anti-interference for engine room electromagnetic environment
• RDI-32 is dry contact input version; RDI-32A is active voltage input variant

Application Scenarios

• Kongsberg K-Chief 500 / AutoChief C20 vessel monitoring and alarm system
• Offshore platforms, cargo ships, tankers and container vessel engine room monitoring
• Valve position feedback, pump/fan running status, pressure switch and level switch signal acquisition
• Propulsion control system auxiliary discrete signal collection and alarm input
• Marine automation cabinet maintenance, spare parts replacement and system retrofit

FAQ

Q: What is the difference between RDI-32 and RDI-32A?
A: RDI-32 is for passive dry contact signals; RDI-32A accepts active 24VDC / 24VAC voltage signals.

Q: Which communication bus does it adopt?
A: Redundant CANopen fieldbus, matched with Kongsberg distributed dPSC system.

Q: What is RDI-32Axe?
A: RDI-32Axe is the upgraded enhanced version of RDI-32A with expanded diagnostic functions.

Q: Is this module still in production?
A: It is a legacy marine I/O module, mainly supplied as surplus, refurbished and tested spare parts for vessel maintenance.