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5.2.1 PWM Outputs
5.2.2 Sensor Power Supply
5.3.1 CAN Bus
5.3.2 Ethernet Channels
5.3.3 RS232 Port
5.3.4 Vehicle Diagnosis Connector
Bosch Motorsport
5.2 Output Channels
This chapter describes the PWM Output and Sensor Power Supply of the MSI 60.
The MSI 60 has 4 low side switch outputs controlled by pulse width modulation (PWM).
Each switch is rated 1 A maximum current. Maximum PWM switch frequency is 1 kHz with
a 0 % ... 100 % duty cycle. Each output is short circuit protected to GND and battery
voltage. It is mandatory to connect the LS_PWM pins to vehicle GND as indicated in the
circuit diagram when using the PWM outputs.
The MSI 60 has three types of sensor power supply:
– One 12 V unregulated battery voltage
– Two fixed outputs with 5 V regulated
– Two switchable 5 V/10 V outputs with regulated voltage
5.3 Communication Channels
This chapter describes the Communication Channels of the MSI 60.
The MSI 60 has 2 CAN buses configurable as input and output. Different baud rates are
selectable. Please note that the MSI 60 does not contain any CAN termination resistors.
Thus the CAN termination resistors need to be integrated into the wiring loom.
The MSI 60 has three 100 Mbit full duplex Ethernet communication ports. The ports are
internally connected with an Ethernet switch. The Ethernet ports have 'cable auto cros-
sover' functionality.
The MSI 60 has one RS232 serial port. The baudrate is programmable which can be used
for reception of data from a serial GPS sensor, see on GPS Sensor [} 111].
The Bosch Motorsport vehicle diagnosis connector is used as a standard interface to con-
nect the vehicle to a PC e.g. via a MSA-Box II. Loom Connector: AS 0-12-35SN.
PIN
Name
1
Terminal 30
2
Terminal 15
3
Terminal 31
4
CAN High
Description
Permanent positive
Switched positive
GND
Diagnostic CAN bus
Modular Sensor Interface MSI 60
Inputs and Outputs | 5
Used for MSI 60
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