Display Unit DDU 7
Inputs and Outputs | en
13
Bosch Motorsport
Manual
04.02.2019 | V 02 |
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
Name
Description
Used for DDU 7
Pin 1
Terminal 30
Permanent positive
+
Pin 2
Terminal 15
Switched positive
+
Pin 3
Terminal 31
GND
+
Pin 4
CAN High
Diagnostic CAN bus
Pin 16
CAN Low
Diagnostic CAN bus
Pin 10
K-Line
ECU diagnosis
Pin 8
Ethernet RxD +
Ethernet interface
+
Pin 9
Ethernet RxD -
Ethernet interface
+
Pin 11
Ethernet TxD +
Ethernet interface
+
Pin 12
Ethernet TxD -
Ethernet interface
+
Pin 22
Screen
Cable screen
+
Содержание DDU 7
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