FC-IOTA-R24 Honeywell Redundant I/O Termination Assembly

Product Description

The FC-IOTA-R24 is a high-availability Redundant I/O Termination Assembly (IOTA) designed for the Honeywell Safety Manager and Experion PKS platforms. It provides the physical and electrical interface for redundant I/O modules, ensuring critical safety-instrumented functions (SIF) remain operational even if a single module fails.

Engineered for demanding industrial environments, the FC-IOTA-R24 supports high-current loads up to 10 A, features reverse polarity protection, and allows hot-swapping of modules without interrupting process control or compromising safety integrity.

Technical Specifications

Key Advantages

• Fault Tolerance: Supports redundant module pairs to ensure continuous field data delivery to the safety logic solver.

• Ruggedized Design: Wide thermal range and pollution degree 2 rating enable operation in non-climate-controlled or dusty environments.

• High Current Capacity: 10 A rating allows powering multiple high-density I/O points and field transmitters simultaneously.

• Standardized Mounting: Horizontal mounting footprint fits standard industrial control racks.

Technical FAQ

What happens if the power supply polarity is reversed?
The parallel diode conducts, intentionally blowing the upstream fuse to protect connected I/O modules from damage.

Can it be used in non-redundant setups?
Yes, a single module can be hosted, but the assembly is optimized to sync data between primary and secondary modules for high-availability loops.