ICS TRIPLEX T8403 Trusted TMR Digital Input Module
Part No.: T8403
Manufacturer: ICS Triplex (Rockwell Automation)
Series: Trusted TMR Safety System
Type: 40-Channel 24V DC Digital Input (DI)
Certification: IEC 61508 SIL 3, ATEX, IECEx
1. Core Architecture
TMR (Triple Modular Redundancy): Each of the 40 channels uses 3 independent circuits. Hardware 2-out-of-3 (2oo3) voting automatically masks faults, ensuring signal integrity and uninterrupted operation.
2. Technical Specifications
• Channels: 40 x TMR Digital Inputs
• Input Voltage: 24V DC (20–32V DC range)
• Input Current: 2 mA (typical)
• Isolation: 2500V galvanic isolation
• SOE Resolution: 1 ms (on-board)
• Line Monitoring: Per-channel open/short detection
• Operating Temp: -40°C to +70°C
• Power: 20W (from backplane)
3. Key Features
• SIL 3 Certified: For safety-critical applications
• Hot-Swappable: Replace without system shutdown
• Full Diagnostics: Self-test, fault logging, line check
• High Density: 40 channels in compact module
• Industrial Rugged: Extreme temp, vibration, noise immunity
4. Typical Applications
• Emergency Shutdown Systems (ESD)
• Fire & Gas Detection (F&G)
• Burner Management Systems (BMS)
• Oil & Gas, Petrochemical, Power Generation
ICS Triplex © T8403 SIL 3 Safety Input Module
