DriveMate has an integrated Mifare type card reader which reads the serial number from the presented card. If the card is read for the first time, then a 1 second beep sounds. If the card is re-presented a short beep will be sounded to acknowledge the card.
The long serial number of the presented card will be sent to the script from MiX DriveMate which will then be sent to the MiX OBC and an extended Driver ID.
The script can also provide the FM ID from a driver list look up to DriveMate where an immobilizer function is required.