MoTeC ADL EDL - Manual (Page 24)

22 Overview
Field Updateable Control Software
The ADL control software (firmware) is field updatable so that new software
features can be used as they become available.
CAN Cable
The CAN Cable allows the computer to communicate with the ADL at high
speed.
The CAN Cable connects between the PC Printer Port (Parallel Port) and the
CAR cable, which is mounted in the vehicle and connects to the ADL.
Be sure that the CAN Cable is connected directly to the PC, do not use an
extension cable or switch box between the PC and the CAN Cable otherwise
incorrect operation may result.
Note that the PC parallel port must be a bidirectional type.
The CAN Cable contains electronics which is powered via the cable from the
ADL.
The CAN Cable can be extended by up to 12 meters. Note that a special 100
ohm data cable is required.