Honeywell 51305072-200 / CLCN-A – Dual-Node LCN Coax A I/O Board for TDC/TPS Cabinets

The Honeywell 51305072-200, referenced as CLCN-A, is a Local Control Network (LCN) coax A I/O board used in legacy Honeywell TDC 3000 / TPS nodes. From my experience, it’s the hardware that anchors an LCN node to the coax backbone, keeping communications stable between operator stations, controllers, and application modules. You might notice that plants keep one on the shelf because a like-for-like swap typically restores an LCN segment without touching cabinet wiring or node configuration.

Company’s Order Placement Process and Guarantees

• Warranty period: 365 days
• Delivery time: 1 week for in-stock; no more than 1 month at the latest
• Payment method: 50% advance payment; full payment for delivery
• Express delivery methods: FedEx, UPS, DHL

Key Features

• LCN coax interface (Channel A) – Provides the node’s connection to the LCN coax trunk; suited for dual‑node architectures.
• Backplane integration – Draws power and data paths from the Honeywell node chassis; no extra wiring in most cases.
• Service-friendly field connectors – Coax connectors and clear labeling help technicians move fast during outages.
• Stable legacy support – Typically drop‑in with existing TDC/TPS nodes, minimizing risk on mature systems.
• ESD-safe hardware – Built for control room environments with predictable behavior under continuous duty.

Technical Specifications

Values reflect what’s commonly supplied for this Honeywell LCN board family. If you share your cabinet/node tag and LCN topology, we’ll confirm compatibility before shipment.

Application Fields

• TDC 3000 / TPS systems linking operator stations, application modules, and process controllers over LCN
• Control room cabinets where legacy LCN coax backbones are maintained or extended
• Brownfield migrations keeping the LCN layer intact while replacing individual nodes over time
• Sites standardizing on OEM spares to reduce downtime risk during network maintenance

Advantages & Value

• Low integration risk – OEM LCN hardware that, in many cases, drops in without rewiring or topology changes.
• Uptime protection – Keeping a spare CLCN-A on hand typically shortens recovery from a node-side communication fault.
• Compatibility – Designed for Honeywell node chassis and existing coax runs; consistent behavior with dual‑node architectures.
• Supportable lifecycle – Traceable part numbering and a 365‑day warranty align with planned outage strategies.

Installation & Maintenance

• Handling – Treat as ESD‑sensitive; use a grounded wrist strap and antistatic surface during install.
• Coax practices – Use the correct LCN coax and connectors; verify segment termination and impedance match per site standard.
• Routing – Keep LCN coax away from high‑EMI sources; maintain bend radius and strain relief at entry points.
• Commissioning – Confirm node status on the LCN, check error counters, and verify redundancy (if dual‑node) is healthy.
• Routine care – Inspect connectors for oxidation, re‑seat during PMs if needed, and document any changes to LCN topology.

Quality & Certifications

• CE/UL conformity typical for control room equipment (board revision dependent)
• RoHS status varies by vintage; we can confirm per build
• Manufacturer’s warranty: 12 months from shipment

A quick field note we’ve heard: “Swapped the CLCN-A and the node rejoined the LCN within minutes—no drawing changes.” Share your cabinet tag, node type, and LCN segment details, and we’ll validate the 51305072‑200 / CLCN‑A fit so it ships ready for your outage window.