Inputs And Outputs; Input Channels; Output Channels; Communication Channels - Bosch DISBLAY DDU 7 Manual

5 | Inputs and Outputs

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5 Inputs and Outputs
5.1

Input channels

Analog inputs
The DDU 7 analog inputs accept an input signal of 0 to 5 V. A 3.01 kOhm pull‐up
resistor can be activated by software.
Digital inputs
The digital inputs of the DDU 7 accept 0 V to 5 V signals of Hall‐effect sensors by
default. Connect the output of the Hall‐effect sensor to the REVn_P pin and leave
the REVn_M pin open.
Display brightness switch
Pin 37 of the life connector is used as a dimmer switch for the display. The inter‐
nal pull‐up resistor is automatically activated. Different dim settings are selected
by a connecting the pin to SENSGND with different resistor values over a 6 posi‐
tion switch. The individual brightness settings for LEDs and the display are de‐
fined by RaceCon.
Dim Level
Level 1
Level 2
Level 3
Level 4
Level 5
Level 6
5.2

Output channels

Sensor power supply
The DDU 7 has four sensor power supplies:2 x 5 V, 1 x 10 V and 1 x Ubat regula‐
ted voltage. They are short circuit protected to battery voltage and GND.
5.3

Communication channels

CAN bus
The DDU 7 has 2 CAN buses configurable as input and output. Different baud
rates are selectable. Please note that the DDU 7 does not contain any CAN termi‐
nation resistors. Thus the CAN termination resistors need to be integrated into
the wiring loom.
Resistor Value
43.9 Ohm
142 Ohm
264 Ohm
409 Ohm
609 Ohm
846 Ohm
DDU 7 Manual Bosch Motorsport