For over 30 years, speedsignal has offered a complete range of CAN bus adapters for a wide variety of applications and more than 1,000 vehicle models. In recent years, the portfolio has been particularly expanded with regard to functions in and around operations of fire departments and government agencies. The latest solutions address problems arising from production vehicles and their optimization for maximum end-customer safety. Features that save lives for end customers can become new hazards during critical operations!

AutoAssist-OFF: Automatic Deactivation of Driver Assistance Systems (B-3470xxx)

The AutoAssist-OFF module automatically deactivates various driver assistance systems as soon as the emergency signal (blue light) is activated. While these systems save lives in normal road traffic, they can become hazardous during emergency response drives. The module disables the following systems:

• Lane-keeping assistant – prevents unwanted steering interventions during emergency drives
• Emergency braking assistant – enables full driver control in critical situations
• Start-stop automatic – ensures that the engine runs during operations
• Fatigue detection – eliminates unnecessary warnings during long operations
• Speed warning – prevents warning messages when exceeding the maximum permissible speed

Configuration is conveniently performed via DIP switches, enabling simple adaptation to different vehicle types.

RunLock and RunBlock: Engine Control for Emergency Vehicles

RunLock (B-339xxxx) is an engine run-on circuit that allows the vehicle engine to continue running after the key is removed. This function is particularly valuable for emergency vehicles that require power for auxiliary equipment and devices even when stationary. The system monitors safety-relevant signals such as clutch, brake, and handbrake to prevent unauthorized use. The vehicle can be securely locked while the engine continues to run.

RunBlock (B-3670010) offers the opposite functionality: a universal engine start inhibitor that prevents engine starting as soon as a control signal is received. A typical application example is preventing engine start when an external 230V power supply is connected at the station location.

Signalbox: CAN Bus Adapter (B-345xxxx)

The Signalbox is a highly developed adapter for direct connection to the vehicle CAN bus. It generates important analog signals for retrofitted bodies and auxiliary equipment:

• Speed signal for auxiliary equipment and documentation systems
• Low beam status
• Ignition status
• Turn signal indicator
• Reverse signal for backup cameras and warning systems

The Signalbox serves as a central interface between modern CAN bus vehicles and the special equipment of emergency and special-purpose vehicles.

Springlicht: Increased Visibility During Operations (B-373xxxx)

The high beam module automatically activates the high beam in one-second intervals as soon as the blue light is switched on. This pulsating high beam operation significantly increases the visibility of the emergency vehicle and improves safety for both emergency personnel and other road users, particularly during drives with emergency signals.