CANbus interface

  The electronic vehicle immobiliser with CANbus interface offers
  reliable protection against the theft of utility vehicles that is
  highly resistant to manipulation and cannot be deactivated
  by short-circuiting pairs of leads, but only via the key with
  cryptographical transponder. The authentication is checked via
  an automotive-compatible reading device in the ignition lock,
  which then sends the encoded messages to the engine control
  unit via the CANbus. If the ignition is mechanically interrupted
  by the ignition key, the anti-theft device is automatically
  re-activated.

Relay outputs

  In the case of the electronic vehicle immobiliser with relay
  outputs, three potential-free relay contacts are switched by
  inserting the key with a valid transponder. Only then is the
  interruption of important circuits, e.g. for starter, fuel pump and
  injection unit, overridden. The protection of utility vehicles
  against theft is now a matter of course due to the use of an
  automotive-compatible reading device and a cryptographical
  transponder (double authentication) that can be firmly
  integrated into the mechanical key of the utility vehicle.