Honeywell FC-IOTA-R24 Redundant IO Termination Assembly

Product Description

Configured for redundant I/O path termination in Honeywell Safety Manager and Functional Safety Controller (FSC) systems, the Honeywell FC-IOTA-R24 51306505-175 (IOTA-R24 Redundant IO Termination Assembly) provides 32 universal I/O channel connections through CN1 and CN2. It supports two redundant RUSIO-3224 or RUSLS-3224 modules and provides separate power control for Module A and Module B.

Hardware Specifications

Redundant I/O Path Architecture

The FC-IOTA-R24 accepts two redundant RUSIO-3224 or RUSLS-3224 modules. Module A mounts in the upper position, while Module B mounts below it. POWER 1 and POWER 2 control the two module positions independently.

CN1 and CN2 provide the 32 universal I/O channel connections. The minus-row connects to 0 V, while the plus-row carries the field signal channels. This arrangement allows the termination assembly to route the applicable I/O field signals through the installed module paths.

CN3 provides four identical V+ connections for active analog input devices. The assembly also provides two RJ45 Ethernet interfaces, identified as RIOLA and RIOLB, for 100 MB communication.

The unit accepts a nominal 24 V DC supply across a -15% to +30% input range. The maximum supply load is 10 A, and a 15 A blade fuse provides supply protection.

Frequently Asked Questions

Q: How are the two redundant I/O modules positioned in the FC-IOTA-R24?
A: Module A mounts in the top position, and Module B mounts in the bottom position. POWER 1 and POWER 2 control the two positions independently.

Q: How does the FC-IOTA-R24 provide its 32 I/O channels?
A: CN1 and CN2 provide the 32 universal I/O connections. The minus-row connects to 0 V, while the plus-row provides the actual field signal channels.

Q: What power supply does the FC-IOTA-R24 require?
A: The assembly operates from a 24 V DC supply with a specified input range of -15% to +30%. The maximum supply load is 10 A, with a 15 A blade fuse for protection.

Field Installation Guidelines

Mount the FC-IOTA-R24 according to the mechanical arrangement of the applicable Honeywell Safety Manager or FSC system. Install the designated RUSIO-3224 or RUSLS-3224 modules in their specified upper and lower positions.

Connect field I/O wiring to CN1 and CN2 according to the applicable system wiring documentation. Maintain the specified polarity between the 0 V minus-row and the channel plus-row.

Use CN3 V+ connections only for the intended active analog input power connections. Route signal wiring separately from high-voltage and high-current conductors where the installation design permits.

Connect the RIOLA and RIOLB Ethernet interfaces according to the system network architecture. Verify connector identification before energizing the assembly.

Apply the 24 V DC supply within the specified voltage range. Check the 10 A maximum supply load and confirm the installed 15 A blade fuse before commissioning. Verify POWER 1 and POWER 2 states independently during system startup.

Other Attributes

• Series: Honeywell FSC 
• Country of Origin:  USA
• Lead Time: In Stock, 2 Working Days

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