n Do not use a connector panel in areas of strong electromagnetic
radiation. Note that a ribbon cable may pick up some of this
radiation.
n If optimum signal quality is a must, avoid using connector panels.
Connect your external devices to the board connectors directly.
Using connector panels
n If your dSPACE hardware offers BNC cables: If noise is a problem,
avoid the use of BNC connectors. BNC connectors use the outside
of the connector for ground. They do not permit shielding.
n To avoid poor signal performance, do not create ground loops
within the BNC wiring.
Using BNC cables
n Use connections as short as possible between your test bench and
the dSPACE board.
n Keep cabling away from noise sources.
n Separate signal lines from high-current or high-voltage lines. These
lines are capable of inducing currents on the signal lines if they run
parallel and close to them. To reduce the magnetic coupling
between lines, separate them by a reasonable distance if they run
in parallel, or run the lines at right angles to each other.
n Do not route signal lines through conduits that also contain power
lines.
n Protect signal lines from magnetic fields caused by devices such as
monitors, electric motors, welding equipment, transformers, and
so on, by running these through special metal conduits.
Cabling
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Avoiding Noise and Crosstalk
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DS1103 Hardware Installation and Configuration November 2014
201
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