Digital tachographs shall ensure the following functions:
speed and distance measurement;
monitoring driver activities and driving status;
monitoring the insertion and withdrawal of tachograph cards;
recording of drivers’ manual entries;
calibration;
automatic recording of the position points referred to in Article 8(1);
monitoring control activities;
detection and recording of events and faults;
reading from data memory and recording and storing in data memory;
reading from tachograph cards and recording and storing in tachograph cards;
displaying, warning, printing and downloading data to external devices;
time adjustment and measurement;
remote communication;
company locks management;
built-in and self-tests.