EMC Regulatory Compliance

module in environments having lower maximum ambients. Under more favorable thermal conditions, it may be possible to operate the module reliably at higher than 55° C with increased airflow. It is important to note that there are several factors, in addition to the rated CFM of the air mover, which determine the actual volume and speed of air flowing over a module.

The MVME240x was tested in an EMC-compliant chassis and meets the requirements for EN55022 CE Class B equipment. Compliance was achieved under the following conditions:

❏Shielded cables on all external I/O ports.

❏Cable shields connected to chassis ground via metal shell connectors bonded to a conductive module front panel.

❏Conductive chassis rails connected to chassis ground. This provides the path for connecting shields to chassis ground.

❏Front panel screws properly tightened.

❏All peripherals were EMC-compliant.

For minimum RF emissions, it is essential that the conditions above be implemented. Failure to do so could compromise the EMC compliance of the equipment containing the module.

The MVME240x is a board level product and meant to be used in standard VME applications. As such, it is the responsibility of the OEM to meet the regulatory guidelines as determined by its application.

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