Motec PDM30 User Manual download pdf (Page 47)

44 Appendices

UTC Wiring for PC Connection

To connect to a PDM through a MoTeC UTC (USB to CAN adaptor), a mating

connector for the UTC must be wired to the PDM's CAN bus.

The UTC connects to the PC USB port with a standard USB A-B cable.

If the PDM does not connect to any other CAN device, it can be directly wired

to the CAN connector.

If the wiring length is less than 2 m (7 ft) the terminating resistor is

recommended but not essential as the UTC has a built in terminating resistor.

Black

White

CAN Connector (5 pin XLR Female)

PDM

CAN-LO

CAN-HI

100R Resistor

*Not essential if the wiring

length is less than 2 m (7 ft)

These wires must be twisted

Minimum one twist per 50 mm (2 in)

White

Green

UTC Connector Type (5 pin XLR Female):

Deltron 716-0-0501 (Non-latching)

Neutrik NC5FDL1 (Latching)

CAN Bus Wiring Requirements

The CAN bus should consist of a twisted pair trunk with 100R (0.25 watt)

terminating resistors at each end of the trunk.

The preferred cable for the trunk is 100R data cable but twisted 22# Tefzel is

usually OK.

The maximum length of the bus is 16 m (50 ft)

CAN devices (such as MoTeC PDM, M800 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 500mm (20in) of twisted wire and should be within 500mm of one end of

the trunk. If desired two CAN connectors may be used so that the UTC may

be connected to either side of the vehicle. Both connectors must be within

500mm of each end of the trunk.

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Motec PDM30 User Manual Page 47