MoTeC C125 - Manual (Page 22)

MoTeC Installation 21
• Some sensor connectors may not be available with 22# terminals, in
which case doubling the wire over gives the equivalent of an 18# wire.
This is suitable for many of the common sensor terminals.
• Use the correct crimping tool for all contacts to ensure a reliable
connection.
• Power the Display Logger via a separate switch and a 5 ampere fuse, to
ensure the PC can communicate with the Display Logger without the
need to power the rest of the vehicle.
• The C125 ground must have a direct connection to the vehicle battery.
• The Display Logger is connected to other devices via the CAN bus.
Connecting Devices
Peripheral devices can be directly connected to the Display Logger's input
and output pins. The Display Logger can also send or receive data from other
devices via either RS232 or CAN communications.
Inputs – Requires I/O Upgrade
Input Types
A range of sensors is available to suit different types of measurement, e.g.
temperatures, pressures, speed. Each type of measurement generates a
different electrical signal that requires a suitable input type.
Each sensor needs to be connected to the type of input designed to suit that
type of sensor.
MoTeC devices have the following input types available:
• Analogue Voltage Inputs
• Analogue Temperature Inputs
• Digital
Inputs
• Wheel Speed Inputs
In addition to sensors connected to the inputs, the Display Logger has internal
sensors available for battery voltage, device temperature and G-force.
Analogue Voltage Inputs
Analogue Voltage inputs are normally used to measure the signals from
analogue voltage type sensors, i.e. sensors with variable voltage outputs,
such as:
o
Rotary or linear potentiometers