ICS TRIPLEX T8451 24 Vdc Digital Output Module
ICS TRIPLEX T8451 24 Vdc Digital Output Module
Technical Specifications
General Specifications
Manufacturer: ICS Triplex
Part Number: T8451
Product Type: Digital Output Module
System: Trusted™ TMR
Electrical Specifications
Output Voltage: 24 Vdc
Number of Outputs: 40 digital output points
Architecture: Triple Modular Redundancy (TMR)
Isolation Rating: 2500 V optical/electrical isolation
Functional Specifications
Line Monitoring: Open circuit, short circuit, and load error detection
Overcurrent Protection: Automatic, per channel
SOE Resolution: 1 ms
Power Distribution: 8 isolated power groups
Maintenance & Diagnostics
Hot Swap Support: SmartSlot and companion slot configuration
Status Indication: Individual output LEDs and module status LED
Operating Modes: Active, Standby, Educated
Description
The ICS TRIPLEX T8451 24 Vdc Digital Output Module is a high-performance Trusted™ TMR module designed for safety-critical industrial control systems. It provides 40 triple-modular-redundant (TMR) digital output points per module, ensuring reliable and fault-tolerant operation in demanding environments.
Built with advanced diagnostics and protection features, the T8451 continuously monitors field wiring and output loading to detect open circuits, short circuits, and wiring faults. Each output channel includes automatic overcurrent protection, eliminating the need for external fuses and improving system availability.
The module supports hot replacement using SmartSlot technology or adjacent companion slots, allowing maintenance without system shutdown. Clear front-panel LEDs display individual output status, wiring faults, and overall module health, making troubleshooting faster and easier. With high-isolation barriers and onboard Sequence of Events (SOE) reporting at 1 ms resolution, the ICS TRIPLEX T8451 is ideal for critical applications in oil & gas, power generation, chemical processing, and other safety-focused industries.
Key Features
24 Vdc digital output module with 40 TMR output points
Triple Modular Redundancy for high availability and fault tolerance
Automatic point-by-point line monitoring for open and short circuits
Built-in overcurrent protection per channel (no external fuses required)
High-level optical/electrical isolation with 2500 V pulse withstand
Onboard Sequence of Events (SOE) reporting with 1 ms resolution
Supports SmartSlot online hot replacement and adjacent slot configuration
Front-panel LEDs for output status, wiring faults, and module health
Outputs powered by 8 isolated power groups (PGs)
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