TRICONEX 4201 Multimode Fiber Optic Remote Extender Module for Tricon Safety I/O Systems

Product Description

The TRICONEX 4201 is a high-integrity Triple Modular Redundant (TMR) multimode fiber optic remote extender module, engineered by TRICONEX (Schneider Electric) for SIL 3 safety instrumented systems (SIS) in critical industrial environments. As a core remote I/O extension component, this hot-swappable module (supplied as a TMR set of 3) enables reliable extension of I/O points to remote locations via multimode fiber-optic links, reducing wiring complexity and enabling monitoring/control of field devices far from the main controller. It features comprehensive LED diagnostics, ground loop isolation, and seamless integration with Tricon main/expansion chassis—making it ideal for emergency shutdown (ESD), fire & gas (F&G), and process safety systems in oil & gas, chemical, petrochemical, and power generation industries.

Key Functions

The 4201 remote extender module delivers fault-tolerant remote I/O extension for Tricon SIS, leveraging TMR architecture and multimode fiber for high reliability. Key functions include: acting as the remote RXM in the remote chassis to communicate with primary SRXM modules in the main chassis; supporting multimode fiber links with SC/ST connectors; enabling long-distance I/O extension (up to 2 km for multimode, compatible with 12 km single-mode via SRXM pairing); providing TMR majority voting (2-out-of-3) for data integrity and fault tolerance; hot-swappable design for online maintenance without system shutdown; LED status indicators (PASS/FAIL/ACTIVE/TX/RX1/RX2/RX3) for real-time health and communication monitoring; and ground loop isolation to prevent electrical noise interference.

Application Scenarios

The TRICONEX 4201 remote extender module is deployed in safety-critical industrial applications requiring remote I/O extension with SIL 3 compliance. In offshore platforms and refineries, it extends ESD and F&G system I/O to remote wellheads, processing units, and emergency shutdown valves, reducing long-distance copper wiring and enhancing system reliability. In chemical plants, it connects reactor safety interlocks and toxic gas mitigation systems to remote sensor/actuator networks, maintaining SIL 3 safety integrity. In power generation facilities, it links turbine/generator protection systems to remote vibration, temperature, and pressure sensors, enabling real-time condition monitoring and protection. It is also used in mining, pharmaceutical manufacturing, and water/wastewater treatment—all scenarios where remote I/O extension and high availability are critical to preventing safety incidents.

Technical Specifications

• Global Inventory Network: 121 shared inventories worldwide, enabling direct procurement from overseas warehouses—supporting faster delivery and reduced logistics costs.
• Pricing & After-sales: Competitive prices paired with reliable after-sales warranty services.
• Customer Coverage: Serving clients across regions including the United States, Germany, Japan, South Korea, United Kingdom, France, Italy, Canada, Brazil, India, Australia, Russia, Spain, Netherlands, Switzerland, Sweden, Belgium, Austria, and Turkey.
• Product Quality Assurance: All products are brand new and original. Spare parts include a 1-year warranty, and all items undergo pre-delivery testing and certification.
• Discount Policy:
• Multi-product orders qualify for custom discounts (contact us for details).
• We offer further price adjustments if you receive a lower quote for identical products from other suppliers, tailored to your budget.