Official Specifications of Triconex 4211 Model: 4211 Brand: Triconex (Schneider Electric) Positioning: Remote I/O Fiber Communication Slave Module Matching Master Module: 4210 ## I. Core Functions Forms a complete long-distance remote expansion system in conjunction with the 4210 module. Installed in remote I/O racks to receive optical fiber signals from the main cabinet and forward local I/O data. Adopts TMR triple modular redundant architecture with SIL3 safety integrity level. Supports single-mode fiber transmission with industrial anti-interference performance, suitable for long-distance cross-unit wiring in plant areas. ## II. Key Technical Parameters Interface: ST single-mode fiber interface Transmission Medium: Single-mode optical fiber Maximum Transmission Distance: 12km System Architecture: Triple Modular Redundancy (TMR) with 2oo3 voting logic Operating Voltage: 24VDC redundant power supply Operating Temperature: -40℃ ~ +70℃ Protection & Certifications: SIL3, FM, UL, TÜV Hot-swappable design for replacement without system shutdown Built-in indicator lights for operation, fault, sending and receiving status ## III. Version Differentiation 4210: Fiber Master Module for local main cabinet 4211: Fiber Slave Module for remote substations Corresponding multi-mode short-distance versions: 4200 (Master) / 4201 (Slave) ## IV. Application Scenarios SIS/ESD/F&G/BMS systems in chemical, petrochemical and power industries. Decentralized production units with long distances from central control rooms requiring remote I/O extension. High electromagnetic interference environments with fiber isolation for enhanced anti-interference capability.