User's Manual

Solutions for a Real Time World NEMO2 Design Guidelines
Applicationnote
RF Shielding
The NEMO2 module is not shipped with an RF shield. In order to comply with
modular approvals, the integrator must shield the circuitry around the NEMO2
module on the integrators board. The shield must be grounded and shall have an
opening for the microstrip transmission line.
NEMO2 has received Limited Modular Approval due to the absence of a
shield and each OEM will be required to have Radiated Emissions
measured to ensure compliance.
There is an outline on the NEMO2 evaluation board for a metal shield. Below are
dimensions of the shield for the NEMO2 evaluation board. The shield is keyed for
placement with the PCB and shield outline also reflecting the keyed holes. The
details are provided in the NEMO2 evaluation board GERBERS. The gap spacing with
the microstrip is also illustrated below.
Figure19:NEMO2EvaluationBoardExampleShield