A-281C Control Board – Legacy DX Cabin Control System Replacement

The A-281C Control Board is a high-quality, footprint-compatible replacement for the original control board used in legacy DX cabin control systems from the mid-1990s. Designed to operate identically to the original, this newly manufactured unit ensures seamless integration, long-term reliability, and optimal performance. Whether you need to maintain an existing system or replace a faulty board, the A-281C is the perfect drop-in solution.

Key Features & Benefits:

✅ Perfect Compatibility

The A-281C is engineered to match the original control board’s form, fit, and function. It fits directly into the existing system without requiring modifications, ensuring a hassle-free installation process.

✅ Identical Functionality

This control board operates exactly like the original, allowing continued use of legacy DX cabin control systems without compromising performance. It maintains the same programming, display, and operational characteristics, ensuring familiarity for users.

✅ Dual Display Interface Support

The A-281C supports two types of display interfaces, making it compatible with both older and newer wiring configurations:

• Legacy 4-Conductor Cable: Utilizes a Molex connector on each end for seamless integration with older systems.
• Modern 6-Conductor RJ-12 Cable: Supports straight-through wiring for updated configurations, providing flexibility for different setups.

✅ Durable & Reliable Build

Built using modern components and advanced manufacturing techniques, the A-281C is more reliable and durable than the original legacy board. It is designed for long-term use, reducing the need for frequent replacements and minimizing downtime.

✅ Cost-Effective Solution

Instead of upgrading an entire system, simply replacing the control board can save significant costs while maintaining full functionality. This is particularly beneficial for industries where system replacements can be expensive and time-consuming.

Applications:

The A-281C Control Board is ideal for users needing a direct replacement for aging DX cabin control systems, ensuring continued operation without the need for costly system overhauls. It is widely used in:

• Marine HVAC Systems – Ensuring climate control in cabins for yachts, boats, and ships.
• Aviation Cabin Control – Maintaining comfort in aircraft cabins.
• Industrial & Commercial HVAC Systems – Used in specialized air conditioning and climate control applications.

Why Choose the A-281C Control Board?

✔ Seamless Replacement: No modifications needed—just install and operate.
✔ Maintains System Integrity: Preserves existing wiring, displays, and controls.
✔ Modern Build Quality: Improved durability and performance.
✔ Versatile Connectivity: Supports both legacy and updated display interfaces.
✔ Cost Savings: Avoid expensive system replacements by upgrading only the control board.

Technical Specifications:

• Part Number: ASY-555-X0A
• Compatibility: Legacy DX cabin control systems
• Display Interface Options: 4-conductor Molex or 6-conductor RJ-12
• Operating Voltage: Standard system voltage (as per DX specifications)
• Environmental Rating: Suitable for marine, aviation, and industrial environments

For anyone looking to restore, repair, or maintain their legacy DX cabin control system, the A-281C Control Board provides the perfect balance of compatibility, reliability, and cost-effectiveness.