TRICONEX 4400Product NameTRICONEX 4400 Tricon Communication Module (TCM); TRICONEX TMR Safety Network Interface Card (TRICONEX by Schneider Electric Process Safety).Product DescriptionThe TRICONEX 4400 is a rugged, fault-tolerant communication module engineered for TRICONEX TMR safety controllers and distributed I/O architectures. It acts as a critical gateway to connect TMR chassis, remote I/O racks, and external hosts, delivering deterministic data transfer for safety interlocks, emergency shutdown (ESD), and process control in harsh industrial environments.Key features include redundant network ports (NET 1/NET 2) for fault-tolerant paths, multiple serial ports for configuration/maintenance, and hot-swappable design to allow online replacement without SIS downtime. It uses TRICONEX proprietary protocols to ensure low-latency, synchronized data exchange across distributed safety loops, with TMR majority voting to eliminate single points of failure.Rated for industrial temperature ranges and harsh EMI/RFI environments, the 4400 is compliant with IEC 61508 SIL 3 and ideal for retrofits or expansions of legacy TRICONEX TMR SIS where reliable, fault-tolerant communication is mandatory to protect personnel, equipment, and the environment.Key Parameters & Specifications (Consolidated Table)

| Category | Specification | Notes |
|---|---|---|
| Manufacturer | TRICONEX (Schneider Electric Process Safety) | TMR SIS specialist |
| Product Type | Tricon Communication Module (TCM); Network Interface Card | For TRICONEX TMR SIS |
| Primary Function | Deterministic communication; redundant paths; diagnostics; hot swap | ESD/interlocks/distributed I/O |
| Communication Ports | 2 × Network ports (NET 1/NET 2, redundant); 4 × Serial ports (config/maintenance); Port isolation: 500 V DC |