T8850 Rockwell ICS Triplex 40-Channel Analog/Digital Output FTA

Product Overview

The Rockwell ICS Triplex T8850 is a high-density Field Termination Assembly (FTA) designed to facilitate secure and organized connectivity between Trusted™ output modules and field-side actuators. Engineered as a hybrid interface, the T8850 supports 40 independent channels, allowing for the streamlined distribution of 24Vdc signals across complex industrial networks. This assembly acts as the critical physical bridge that converts high-speed system commands into field-level execution, supporting both digital and specific analog output configurations.

Built for mission-critical reliability, the T8850 is optimized for use within the Trusted TMR (Triple Modular Redundant) system. It eliminates the need for complex point-to-point wiring by providing a centralized termination point, which significantly reduces installation errors and simplifies forensic troubleshooting in high-stakes environments such as oil and gas refineries and power generation plants.

Key Technical Characteristics

The T8850 is distinguished by its high channel density and its ability to maintain signal integrity in electrically noisy industrial settings.

• 40-Channel High-Density Interface: Provides 40 dedicated termination points in a single compact assembly, maximizing cabinet space efficiency and reducing the hardware footprint.

• Dual Signal Compatibility: Specifically engineered as an Analog/Digital Output FTA, offering versatility for systems that require mixed-signal control from a unified termination base.

• Industrial Voltage Rating: Optimized for standard 24Vdc industrial control circuits, ensuring seamless compatibility with various solenoids, relays, and modulating valves.

• Ruggedized Termination Points: Features heavy-duty terminal blocks designed to withstand mechanical vibration and provide gas-tight connections for long-term operational stability.

• Enhanced System Visibility: Designed to work in tandem with the Trusted system's Ethernet-based communication, allowing for easier signal tracing and maintenance verification.

• Modular Maintenance Design: Facilitates rapid module replacement and system upgrades; its architecture is designed to minimize downtime during routine maintenance or component swaps.

Technical Specifications

• Manufacturer: Rockwell Automation / ICS Triplex

• Model Number: T8850

• Product Series: ICS Triplex Trusted System

• Module Type: Analog Digital Output FTA (Field Termination Assembly)

• Number of Channels: 40 Channels

• Nominal Voltage: 24Vdc

• Weight: 0.62 kg

• Dimensions: 30.2 x 12.5 x 6.2 cm

• System Integration: Compatible with Trusted TMR Output Modules

• HS CODE: 8537101190

• Country of Origin: USA

Industrial Reliability and Integration

The T8850 FTA is an essential component for achieving the high availability standards required by SIL 3 safety architectures. By providing a stable electrical environment for output signals, it protects the system against spurious trips and signal interference. Although this specific model reached its formal discontinuation date in late 2018, it remains a vital legacy component for maintaining the global installed base of Trusted control systems.

Its robust construction and USA-made quality ensure that it can handle the thermal stresses and environmental rigors of heavy industrial processing. For facilities prioritizing safety and operational longevity, the T8850 offers a proven, deterministic interface that safeguards the link between the logic solver and the physical process.