Tachograph and card device associated therewith

Driver & Company Tacho Cards tacho card in slot 2 The vehicle must be returned to a Tachograph Workshop for VU investigation Tachograph Card Authentication Failure ! 1 julemarked slot It's a quirk of tachos Just need to swap cards in the tacho POA counts as break for dual driver purposes Eg Drivers 1&2

coin slot 88 Where multi-manning takes place, the driver of the vehicle will use slot 1 and the co-driver will use slot 2 Cards need to be swopped when the drivers change