Product Short Description
Product Brief Introduction
This module acts as the core long-distance transmission gateway between local Tricon safety controllers and remote distributed I/O chassis. It adopts full TMR redundant architecture, dual-path fiber optic communication, complete electrical isolation, anti-interference protection and real-time fault diagnosis functions.
Description
Basic Product Specifications
- Manufacturer: Triconex (Schneider Electric Industrial Automation)
- Product Series: Tricon TMR Safety Instrumented System
- Product Type: RMX Primary Remote Fiber Optic Communication Extender Module
- System Architecture: Full TMR Triple Modular Redundancy 2oo3 Voting Architecture
- Compatible Equipment: Tricon local main chassis, remote expansion I/O chassis, matched fiber optic cables
- Installation Mode: Standard slot plug-in, hot-swappable online installation
- Origin: USA
- MTBF (Mean Time Between Failures): ≥1,000,000 hours
Communication Technical Specifications
- Transmission Medium: Single-Mode/Multi-Mode Optical Fiber
- Connector Type: LC Fiber Optic Connector
- Maximum Transmission Distance: 1000 meters (Standard) / Up to 20 km (Long-Distance Fiber Version)
- Communication Data Rate: 100 Mbps
- Communication Architecture: Dual-Path Redundant Fiber Optic Link, Automatic Failover
- Supported Remote I/O Capacity: Full compatibility with all Tricon digital input, digital output, analog input, analog output modules
- On-Board Processor: 32-bit RISC Processor
- System Memory: 128MB RAM
- Storage Capacity: 2GB Flash Storage
- Auxiliary Interfaces: RS-232, RS-485, Ethernet; Supports Modbus RTU Protocol
Electrical Technical Specifications
- Nominal Operating Power Supply: 24 VDC
- Operating Voltage Range: 18 VDC ~ 30 VDC
- Total Module Power Consumption: ≤5 W
- Field-to-Logic Electrical Isolation Voltage: 1500 VDC
- Built-in Surge Protection Voltage: 1500 V
- Built-in Overvoltage, Overcurrent and Reverse Polarity Protection
- Internal Logic Power Supply: 5 VDC System Backplane Power
Environmental Specifications
- Operating Ambient Temperature: -40 °C ~ +70 °C
- Storage Temperature: -40 °C ~ +85 °C
- Operating Relative Humidity: 5% ~ 95% Non-Condensing
- Anti-Vibration Performance: Compliant with IEC 60068-2-6 Industrial Standard
- Anti-Shock Performance: Compliant with IEC 60068-2-27 Industrial Standard
- Protection Grade: IP20 (Chassis Mount) / IP65 Reinforced Version Available
- Safety Certification: IEC 61508 SIL 3 (TÜV Certified), CE Certified, UL Certified
Mechanical Specifications
- Module Dimensions: 225 mm × 175 mm × 100 mm
- Module Net Weight: 3 kg
- Shell Structure: Industrial anti-corrosion aluminum alloy heat dissipation shell
- Mounting: Standard Tricon chassis slot plug-in, hot-swappable installation
Functional Characteristics
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Full TMR Fault-Tolerant Safety Architecture
Three independent communication channels execute synchronous data transmission and 2oo3 majority voting logic. Single communication channel fault completes automatic isolation and failover without system shutdown, eliminates single-point failure risk and maintains full safety integrity.
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Dual Redundant Fiber Optic Long-Distance Transmission
Adopts dual independent fiber optic links with automatic hot failover; completely eliminates electromagnetic interference in field cables, realizes stable signal transmission up to 1000 meters and above, solves long-distance I/O layout problems of large industrial plants.
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Complete Real-Time Communication Diagnosis Function
Integrates fiber link loss detection, channel fault detection, data error check detection, module self-diagnosis and remote I/O status monitoring. All fault statuses are displayed by front-panel LEDs and uploaded to Tricon controller in real time for alarm and safety interlock actions.
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Full Compatibility with Tricon I/O Ecosystem
Perfectly matches all Tricon digital input, digital output, analog input and analog output modules; retains original TMR safety logic, diagnosis and fail-safe functions after remote extension.
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Strong Anti-Electromagnetic Interference Performance
Fiber optic transmission completely isolates field high-voltage EMI and surge interference from local safety controller, greatly improves system stability in harsh industrial electromagnetic environments.
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Hot-Swappable & Maintenance-Friendly Design
Supports online module replacement and fiber link maintenance without powering down the entire safety system, greatly reduces system downtime and maintenance difficulty.
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Intuitive Status Visual Indication
Front panel integrated MODULE OK, FAULT, ACTIVE, LINK TX/RX LED indicators, realizes intuitive on-site communication status monitoring and rapid fault troubleshooting.
Application Scenarios
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Oil & Gas Industry
Offshore platform to onshore control room remote safety communication, wellhead distributed ESD system remote I/O extension, pipeline long-distance safety monitoring data transmission, gas gathering station remote safety control system networking.
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Petrochemical & Refining Industry
Large refinery plant area distributed safety system networking, reactor area remote BMS burner management system communication, distillation unit long-distance safety interlock data transmission, flare system remote safety monitoring.
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Power Generation Industry
Power plant boiler-turbine auxiliary area remote safety I/O extension, generator protection system long-distance communication, water treatment plant distributed safety control networking.
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Chemical Processing & Metallurgy Industry
Large chemical plant regional distributed safety system networking, smelting furnace remote safety interlock communication, mine area long-distance safety monitoring data transmission.
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Large-Scale Distributed Industrial Safety Control
All SIL 3 safety-level long-distance remote I/O extension occasions, suitable for large plants with scattered field devices, requiring full retention of TMR safety fault-tolerant performance and remote safety interlock control functions.





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