Motorola MVME2400 用户手册
EMC Regulatory Compliance
B-4
Computer Group Literature Center Web Site
B
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.
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.
EMC Regulatory Compliance
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:
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.
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.
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.
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.
VME applications. As such, it is the responsibility of the OEM to meet the
regulatory guidelines as determined by its application.