Honeywell 51402755-100 – Industrial Operator Keyboard for TDC/TPS Universal Station

The Honeywell 51402755-100 is the operator keyboard assembly commonly used with TDC 3000/TPS Universal Station and Enhanced Universal Station consoles. From my experience, it’s a straight fit when you need a like-for-like replacement that preserves operator ergonomics and the familiar key layout. You might notice that it keeps the classic function keys and tactile feedback that panel operators rely on, so changeover time stays minimal during a maintenance window.

Key Features

• Fit-form-function for Honeywell US/EUS – Designed for TDC/TPS Universal Station use, so operators keep the same workflow without re-training.
• Industrial build quality – Rugged key switches and stable top panel feel; typically better longevity than office-grade keyboards in control rooms.
• Honeywell layout with dedicated function keys – Fast navigation across process displays, alarms, and prompts, which tends to reduce operator input time during critical events.
• Control-room friendly – Quiet tactile response and a footprint that sits neatly on the console, keeping the desk surface tidy.
• Drop-in replacement – In many cases, installation is simply plug-in to the Universal Station’s keyboard port, reboot not required.

Technical Specifications

Application Fields

This keyboard is typically found on operator stations in:

• Refining and petrochemical plants using TDC/TPS Universal Stations
• Power generation and utilities control rooms
• Pulp & paper, metals, and batch chemical processes with legacy Honeywell US/EUS consoles
• Pharmaceutical and food plants where stable, control-room HMI hardware is maintained long term

A maintenance lead shared with us that swapping to 51402755-100 during a night shift kept a crude unit running—operators were immediately comfortable with the key layout, so there was no pause on alarm acknowledgements.

Advantages & Value

• Reliability – Stable performance for control rooms; fewer nuisance failures compared to office-grade peripherals.
• Compatibility – Fit-form-function replacement for Honeywell US/EUS; avoids unexpected behavior during shift handovers.
• Cost Savings – Limits downtime and engineering effort; no software changes or requalification in most cases.
• Support – We can help verify revision compatibility and interface type before shipment to reduce installation risks.

Installation & Maintenance

• Environment – Use in a clean, dry control room. Avoid direct sunlight and liquids on the key panel.
• Wiring – Power and data come from the Universal Station keyboard port. Route the cable away from foot traffic to prevent stress on connectors.
• Safety – De-energize the console or log off operators if procedures require; observe ESD precautions when handling connectors.
• Routine care – Periodic keycap cleaning with antistatic wipes; check function keys for responsiveness. Firmware is not typically user-updated on this unit.
• Spare strategy – Keeping one spare per control room is common, especially in sites with mixed-era US/EUS hardware.

Quality & Certifications

• Manufactured under ISO 9001 quality systems (typical for Honeywell production and approved rebuilds)
• CE compliance for ITE/EMC in most shipments destined for the EU
• RoHS status varies by production lot and region; we can confirm before order
• Warranty coverage: 365 days from delivery