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

Display Unit DDU 7
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.
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 regulated 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 termination resistors. Thus
the CAN termination resistors need to be integrated into the wiring loom.
Ethernet channels
The DDU 7 has one 100 MBit full duplex Ethernet communication port. The port is internally
connected with an Ethernet switch. The Ethernet port has 'cable auto crossover' functionality.
RS232 ports
The DDU 7 has two RS232 serial ports. Baud rate for both ports is programmable. RS232 port
1 is reserved for online telemetry, port 2 can be used for reception of data from a serial GPS
receiver.
Vehicle diagnosis connector
The Bosch Motorsport vehicle diagnosis connector is used as a standard interface to connect
the vehicle to a PC e.g. via a MSA-Box II. Loom connector: AS 0-12-35SN
Pin
Pin 1
Pin 2
Pin 3
Pin 4
Pin 16
Pin 10
Pin 8
Pin 9
Pin 11
Pin 12
Pin 22
Bosch Motorsport
Name Description
Terminal 30 Permanent positive
Terminal 15 Switched positive
Terminal 31 GND
CAN High Diagnostic CAN bus
CAN Low Diagnostic CAN bus
K-Line ECU diagnosis
Ethernet RxD + Ethernet interface
Ethernet RxD - Ethernet interface
Ethernet TxD + Ethernet interface
Ethernet TxD - Ethernet interface
Screen Cable screen
Manual
Inputs and Outputs | en
Used for DDU 7
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04.02.2019 | V 02 |
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