ICS TRIPLEX T8451 24 Vdc Digital Output Module

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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

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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