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QMultiFlex-400™ Installation and Operating Handbook
3.3 Electromagnetic Compatibility (EMC) Compliance
This satellite modem conforms to the provisions of EMC Directive 2004/108/EC and
complies with the following EC and FCC standards:
•
Emissions: EN 55022:2010 Class B – 'Information Technology Equipment – Radio
Disturbance Characteristics – Limits and Methods of Measurement'.
•
Immunity: EN 55024:2010 (incorporating EN61000-4-2:2009; EN61000-4-3:2006,
A1, A2; EN61000-4-4:2012; EN61000-4-6:2009) – 'Information Technology
Equipment – Immunity Characteristics – Limits and Methods of Measurement'.
•
Federal Communications Commission (FCC) Federal Code of Regulation Part 15,
Subpart B.
All D-type connectors must have grounding fingers on the plug shell to guarantee
continuous shielding. The back-shells must comply with the requirements of VDE 0871 and
FCC 20708, providing at least 40dB of attenuation from 30MHz to 1GHz. A good quality
cable with a continuous outer shield, correctly grounded, must be used.
Connections to transmit and receive IF interfaces must be made with double-screened
coaxial cable (for example, RG223/U).
The modem Ethernet ports should not be connected directly to outdoor
Ethernet cables that may be subject to transient overvoltages due to
atmospheric discharges and faults in the power distribution network. Instead,
the modem should be connected via an Ethernet switch or router to provide
isolation from overvoltages as recommended in clause 6 of EN 60950-1.
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