The safety equipment in the driver's cab features either a mechanical or electronic deadman's device, punctiform automatic train controls (now compliant with the new regulations with software version PZB 90), and train radio equipment with GSM-R communication. Relatively recently computers were added for the electronic timetable EBuLa, as well as the automatic door locking at 0 km/h (TB0), which has become a compulsory requirement for all locomotives in passenger service. A few units have also been equipped with computers for the control system CIR-ELKE.