The DDU offers a range of features, including:

• Interface with all navigation equipment
• Comfortable housing design, providing convenient access for faster installation and service of connections and terminals
• One processor board per DDU for a single gyrocompass system
• Plug-in of second processor board for fully redundant CompassNet in multi-gyrocompass system
• Plug-in of up to two Compass Amplifier Units (CAU)
• Connection of Northrop Grumman Sperry Marine fluxgate for magnetic compass
• Emergency controls.

Processor board

The processor board provides:

• Heading management
• Alert management
• Sensor interface management
• Sensor data management
• Integrated RingBus module
• Installation in the DDU
• Second processor board for redundancy in multi-compass systems.