Product Core Brief
- Model: T8431
- Brand: ICS Triplex (Rockwell Automation)
- Series: Trusted TMR
- Core Function: 40-channel TMR 24 Vdc analogue input
- Type: Trusted TMR Analogue Input Module
- Key Specs: 40 sourcing inputs; current-sink; line monitoring; TMR architecture
- Condition: New Original (New Surplus), not refurbished
Product Introduction
In a Trusted TMR safety system the analogue input modules must deliver high channel density while preserving full triple modular redundancy. The ICS Triplex T8431 provides 40 channels of 24 Vdc analogue input, acting as a current sink for sourcing field devices and performing comprehensive diagnostics including selectable line monitoring for open- and short-circuit faults.
Safety and maintenance teams stock this module because a failed analogue input card can take a large number of process or fire-and-gas signals offline; matching the exact T8431 variant and confirming chassis and configuration compatibility prevents the most common delays when a spare is installed under time pressure.







