KONGSBERG MARITIME AS RMP201-8 DIGITAL INPUT MODULE

I. Basic Information
Full Name: RMP201-8 Remote Multi-Purpose Digital Input Module
Original Part Number: 324400 (Version Rev 1.x)
System Affiliation: Compatible with K-Chief 600 engine room monitoring, K-Pos DP power positioning, AutoChief host remote control for the entire Kongsberg maritime automation platform, distributed field I/O units
Positioning: Field dry contacts / 24V analog quantity acquisition, installed nearby in the engine room, pump room, and connection box beside the propeller, significantly reducing long-distance cable laying

Channel Hardware Configuration
Channel Architecture: Total 8 configurable channels (suffix – 8 represents 8 channels)
6 General Multi-Function I/O Channels
2 Fully Electrical Isolated Independent Channels (higher anti-interference level, used for ESD emergency stop, critical fire signals)
Digital Input DI Specifications
Input Format: 24VDC loop power supply, compatible with passive dry contacts (pressure switches, level float balls, valve limit switches, manual buttons, temperature switches)
Maximum Current per Channel: Standard DI loop 10mA
Isolation: Independent photoelectric isolation for each channel, blocking ground loop interference, suitable for strong vibration and salt spray electromagnetic environments
Additional Compatibility (Multifunctional Features)
Software Switching: Analog ±10V acquisition (16bit high-precision ADC), frequency pulse input, a few transistor digital outputs (each 0.1A, total output not exceeding 0.3A)

Power Supply and Bus Communication
1. Power Supply
Power Voltage: 10–36VDC wide range, standard marine 24VDC
Dual redundant power supply RBUS A/B, with ideal diode anti-reverse injection isolation
Typical Power Consumption: 3.5W; On-Board Surge Current < 1.2A current-limiting protection
2. Core Bus (System Networking)
Redundant RBUS A/B Bus: 2Mbps Manchester encoding RS485, Kongsberg private field bus, maximum transmission distance 200 meters CAT5 network cable, dual bus hot standby, single bus line break without signal loss
Expansion Compatibility: Can be connected to CAN bus, debug RS232 serial port, upper layer forwarded to system Ethernet via RCU501 controller
Data Refresh: Millisecond-level real-time upload of switch status and channel fault codes to RCU master control unit