User manual

Test Report ------------------------------------------------------------------------------- 41/48
Report No.: M47ET060805 (ETSI EN 301 489)
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Chapter 12 Conducted Emission Test
Test condition and setup
All the equipment is placed and setup according to EN 55022.
(1) Mains power:
The EUT is assembled on a wooden table, which is 80 cm high and placed 40 cm from the
back-wall, which is a vertical conducting plane. One LISN is for EUT, the other LISN is for
support equipment. They are all placed on the conductive ground. The EUT’s LISN connect a
line switch box for selecting L1 or L2, then connect to a preamplifier and spectrum.
(2) Telecommunication port:
The EUT is place as mains disturbance test. The communication line connected to ISN and
then the measuring receiver connected to the ISN to measured the level of voltage disturbance.
The spectrum scans from 150KHz to 30MHz. Conducted emission levels are detected at
maximum peak mode. But if the maximum peak mode failed or over average limit, it will be
measured by average detection mode.
While testing the worst-emission plot printed in the peak detection mode, and there are up
to 6 highest emissions to be recorded. The plot is kept as the original data and not included in the
test report.