Honeywell 51304532-150 Long-Distance I/O Link Extender

Overview

The MC-ILDX03 51304532-150 is a long-range I/O communication extender developed by Honeywell for distributed control architectures based on the High-Performance Process Manager (HPMM).
It enables reliable optical communication between a central HPMM controller and remotely installed I/O Processor (IOP) card files where copper-based I/O links are impractical due to distance or electrical interference.

Designed for large industrial facilities, this module supports fiber-optic transmission to maintain deterministic, low-error data exchange across extended distances while ensuring immunity to EMI and ground potential differences.

System Compatibility

The MC-ILDX03 51304532-150 is engineered for use within Honeywell legacy and transitional DCS platforms, including:

• Honeywell TDC 3000
• Honeywell TPS
• Honeywell Experion PKS (HPMM-based, legacy environments)

It operates exclusively within the HPMM I/O subsystem and is not intended for C300 or Series C I/O architectures.

Communication Capabilities

This extender replaces standard electrical I/O links with optical transmission, allowing flexible physical separation between controllers and I/O cabinets.

• Maximum optical link distance up to 8 km when paired with long-distance fiber-optic couplers
• Typical link distance of approximately 1.3 km using standard optical couplers
• Dual optical channels (Link A and Link B) for continuous bidirectional communication
• Stable signal timing suitable for real-time process control applications
• Full immunity to EMI, RFI, lightning-induced noise, and ground loops

Module Architecture & Redundancy

The MC-ILDX03 51304532-150 employs a dual-link architecture to improve availability and fault tolerance in critical control systems.

• Requires two physical slots in the HPMM card file
• Requires two corresponding slots in the remote IOP card file
• Link A and Link B operate in parallel for redundancy
• Automatic fault isolation in the event of link degradation or failure
• Fiber-optic coupler interfaces mount directly beneath each extender card

Physical & Environmental Characteristics

Built for continuous operation in industrial control rooms and field cabinets, the module features:

• Industrial-grade PCB and connector construction
• Approximate weight of 500 g, depending on revision
• Passive optical interface with no susceptibility to electrical noise
• Compatibility with standard Honeywell card files and mounting hardware

No field calibration is required.

Typical Applications

The MC-ILDX03 51304532-150 is commonly deployed in facilities where controller cabinets and I/O panels must be physically separated:

• Refining and petrochemical units
• Oil and gas production facilities
• Power generation plants
• Large chemical processing sites
• Any installation requiring long-distance, deterministic I/O communication over fiber

Frequently Asked Questions

Q: Can this module be used with copper I/O links?
A: No. The MC-ILDX03 is specifically designed for fiber-optic transmission and requires compatible optical couplers.

Q: Is this module compatible with C300 controllers?
A: No. It is intended only for HPMM-based systems within TDC 3000, TPS, and legacy Experion PKS environments.

Q: Does the extender provide redundancy by itself?
A: Yes. The dual-link A/B architecture provides inherent communication redundancy when installed as specified.

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