I. Core Parameters

Communication Architecture: TMR triple redundancy (three fiber links operating in parallel)

Transmission Medium: Multi-mode fiber (RXM4201 is multi-mode; RXM4211 is single-mode)

Communication Rate: High-speed real-time bus, no delay synchronization

Transmission Distance: Single segment maximum 2 km (multi-mode)

Topology: Host rack ↔ Remote rack used in pairs, can be cascaded at multiple levels

Data Support: Full types of DI/DO/AI/AO/Pulse signals are forwarded

Redundancy Switching: Automatic non-disruptive switching in case of single link failure

Isolation: Communication and internal circuits are isolated by 1500VAC

Anti-interference: Electromagnetic shielding, surge suppression, signal filtering

Hot Swap: Supports online insertion and replacement without interrupting the system

Power Supply: Backplane 24VDC (±10%)

Power Consumption: Approximately 10W

Operating Temperature: -40°C ~ +70°C

Certifications: TÜV SIL3, CE, UL, CSA, ATEX/IECEx

Size: 225 × 112 × 40 mm

Weight: Approximately 1.4 kg

II. Panel Indicator Lights

PWR (Green): Module power supply is normal

OK (Green): Triple redundancy links are synchronized normally

FAULT (Red): Link abnormal / fault alarm

LINK1/2/3 (Green): Corresponding fiber link data transmission is normal

III. Main Features

Long-distance Expansion: Multi-mode fiber 2 km, meeting the requirement of interconnection of cabinets across different areas in the factory

Triple Redundancy Reliability: Three links operate simultaneously, with strong fault tolerance, in line with SIL3

Real-time Synchronization: The host and remote racks have complete synchronization of programs, data, and status

Strong Anti-interference: Fiber transmission is not affected by EMI/RFI, suitable for strong electromagnetic environments

Configuration Convenience: TriStation can monitor the status, load, and fault points of the links online

IV. Typical Applications

Large-scale Chemical / Petrochemical: Remote rack interconnection of distributed SIS systems in multiple areas

Power Station: Remote centralized control of generator sets and auxiliary systems

Oil and Gas Industry: Long-distance fiber communication between field substations and central control rooms

Large Compressor Station: Data intercommunication between local racks and remote field execution cabinets

Overall Factory Safety System: Integration of scattered interlock points, unified into the central SIS