The Driver Interface Device allows interaction between the driver and the Tranzlog system. 

The DID facilitates the following functions:

• Fuel efficiency prompts to assist the driver in saving fuel
• Tank Full entry
• End of Train monitoring
• In-Cab voice recording
• "Through the window" video recording
• Loco systems failure notification and advice for repair
• Text messaging via Tranzlog's inbuilt text function
• Electronic Track Warrant with Location warning auto train stop on overrun
• Complete loco instrumentation replacement possible
• Embedded country map to allow for visual track warrant indication
• Fuel level indication for diesel locomotives
• Two way text and voice messaging from loco driver to train control
• Tranzlog interface replaces the need for laptop computers on-loco.
• Continuous data logging off the attached Tranzlog ensures multiple data backup
  
  
  The DID Panel features:
• Ultrabright-sunlight readable display with a wide operating temperature range
• Embedded Windows CE with rapid and stable product development using MS Visual Studio
• 802.11 Wireless connectivity
• Local control possibilities using spare I/O
• 5 Function keys for easy menu browsing
• Interface for alcohol breath testing
• Interface for magnetic card driver identification