MoTeC LTCN - Manual (Page 34)

34 Appendices
General CAN Bus Wiring Requirements
The CAN bus should consist of a twisted pair trunk with 100R terminating
resistors at each end. The preferred cable for the trunk is 100R data cable.
The maximum length of the bus is 16 metres (50 ft)
CAN devices (such as MoTeC Data Loggers, ECUs etc) may be connected to
the trunk with up to 500 mm (20 in) of twisted wire.
The CAN connector for the UTC may also be connected to the trunk with up to
500 mm (20 in) of twisted wire and should be within 500 mm of one end of the
trunk.
If desired, two CAN connectors may be used so that the MoTeC UTC may be
connected to either side of the vehicle. Each connector must be within 500
mm of an end of the trunk.
Short CAN Bus
If the CAN bus is less than 2 meter (7 ft) long, a single termination resistor
may be used. The resistor should be placed at the opposite end of the CAN
bus to the CAN connector.