3
Device description
Operating modes (overview)
26
Operating instructions DTCO 4.0 - Edition 11.2018 - A2C19916900
• Calibration
(not part of this manual)
Depending if and which tachograph
cards have been inserted, the DTCO 4.0
automatically switches to one of the fol-
lowing operating modes:
Overview of operating modes of inserted tachograph cards
Operating modes
Card drawer 1
No card
Driver card
Company card
Control card
Workshop card
Card drawer 2
No card
Operational
Operational
Company
Control
Calibration
Driver card
Operational
Operational
Company
Control
Calibration
Company card
Company
Company
Company
(*)
Operation
Operational
Control card
Control
Control
Operational
Control
(*)
Operational
Workshop card
Calibration
Calibration
Operational
Operational
Calibration
(*)
(*) In these states, the DTCO 4.0 only
uses the tachograph card inserted in
card drawer 1.
Service Only!