digiDL-B / BT - Installation
DigiDL-B / BT Installation Guide Page - 6
Specic Vehicle Manu acturer Considerations:
Enhanced Tacho Cable - DDL-ETC (Recommended or all installations)
Please note that whilst we have a range o cable options we recommended the
DDL-ETC or all installations. In the case o vehicles with a conjoined A and B
plug at the rear o the Tachograph you must use DDL-ETC.
Vehicles with conjoined plug: Mercedes and Volvo
Volvo / Mercedes Plug
Y Cable Secondary CAN-Bus adapter - DDL-CY (Legacy Product)
In some cases a RED plug may already be inserted in the C Connector o the
Tachograph or manu acturer or third party services. In most cases this can be
removed and terminated (see DDL-TM connector Page 7).
I in ormation is required rom the
Tachograph or a third party service
we provide a Y Connector which
allows you to plug both devices into
CAN C.
Some 2015 onwards vehicles (Scania
and Volvo to date), seem to have
systems which are tapping into data
rom the CAN2 even though they are
not doing remote download.
Both devices cannot share the same CAN address and the truck manu acturers
do not provide a way to change their address. The Y cable is only used in
conjunction with the digiDL standard cable DDL-TC.
DigiDL-B / BT Installation Guide Page - 7
Y Cable Secondary CAN-Bus adapter - DDL-CY (continued)
The standard CAN bus address or remote download is FB. However or all
Tachosys remote download devices programmed rom Nov 2020, the CAN bus
addresses are set to FA as de ault. This prevents issues occurring where more
than one device is set to FB. For older devices , the CAN bus address should be
manually changed using the digiConnect so tware whilst connected to a digiDL
with a conguration cable.
For shared devices use DDL-CY and i the third party device is not required use
DDL-TM below.
N.B: we recommend the DDL-ETC where a Y Cable was once required as it
per orms the same job. The Y cable has eectively been superseded.
Vehicles most aected: Iveco, MAN, Mercedes, Scania and Volvo
CAN-Bus Termination plug DDL-TM or Onboard Systems 2012 onwards
Some manu acturers t a telematics unit as standard
even i the operator does not subscribe to any services.
This telematics unit may use the Tachograph to
terminate their own CAN-Bus. I the Red Plug is
removed rom the Tacho errors may occur which are
shown on the vehicle dashboard.
Remove the manu acturer’s or third party’s Red plug
and terminate it with our DDL-TM 120 Ohm resistor.
To check or an active third party device, check voltage between GROUND and
PIN 5 o their RED plug with the vehicle’s ignition ON. It will read +/- 3V i active.
Vehicles most aected: Iveco, MAN, Mercedes, Scania and Volvo
N.B: we now recommend using the DDL-ETC in
all new installations as both DDL-CY and DDL-
TM have been superseded by it. The DDL-ETC
caters or all aspects o CAN-Bus termination
and the conjoining o sockets A and B as in the
case o Volvo and Mercedes. DDL-CY and DDL-
TM are still supported or legacy
implementations which use our original
standard cable DDL-TC which is still available.
