Siemens VDO DTCO 1381 - Requirements for the Connection of External Devices

Service only
Installation of the ADR variant 6.1 DTCO 1381 in vehicles used for the carriage of hazardous goods
Edition 07/2007 Technical Description DTCO 1381 6 - 5
TD00.1381.00 132 102
6.1.3 Requirements for the connection of external devices
The connection of external devices to the interfaces (download-,
remote- or info interface pin D8) of the DTCO 1381 is permissible
only when these devices fulfil the following requirements:
• The devices must be switched to a dead (electrical) condition in
the intended operation (operational case ADR).
• The data lines must be installed inside the driver’s com-
partment.
Application default
info interface (pin D8)
Additionally devices for the connection to the info interface (pin D8)
must have the following electrical characteristics at their input:
Fig. 6 - 1: Application default info interface (pin D8)
Input for
info interface
External device (ECU)
Evaluation signal
min.1kΩ
for microcontroller
(pin D8)
max. 10 nF
Attention!
The mentioned requirements for the connection of external devices
to the interfaces of the DTCO 1381 and the application default for
the info interface (pin D8) are part of the certificate of conformity
and must be absolutely kept with the installation in the vehicle.